A detailed study of the very-high-energy Crab pulsar emission with the LST-1
Context: There are currently three pulsars firmly detected by imaging atmospheric Cherenkov telescopes (IACTs), two of them reaching TeV energies, challenging models of very-high-energy (VHE) emission in pulsars. More precise observations are needed to better characterize pulsar emission at these en...
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| creator | Abe, S Abhishek, A Aguasca-Cabot, A Crespo, N. Alvarez Aramo, C Artero, M Asano, K de Almeida, U. Barres Barrio, J. A González, J. Becerra Bhattacharjee, P Bigongiari, C Burmistrov, L Buscemi, M Carosi, A Cauz, D Ceribella, G Chiavassa, A Chytka, L Cicciari, G. M Contreras, J. L De Angelis, A De Lotto, B Del Peral, L Delgado, C Dellaiera, M Di Pierro, F Prester, D. Dominis Emery, G Ferrarotto, F Fiasson, A López, R. Garcia Gavira, L Paiva, J. Giesbrecht Hahn, A Heckmann, L Heller, M Hoffmann, D Hrabovsky, M Hrupec, D Iarlori, M Imazawa, R Inome, Y Iori, M Martinez, I. Jimenez Kagaya, M Kubo, H Kushida, J Lainez, M Lamanna, G Lamastra, A Lemoigne, L Linhoff, M López-Moya, M López-Oramas, A Luque-Escamilla, P. L Mallamaci, M Manicò, G Mannheim, K Marsella, G Martínez, M Mazin, D Guillen, E. Mestre Mizuno, T Gonzalez, M. Molero Noda, K Ohishi, M Oka, T Okumura, A Orito, R Otero-Santos, J Peresano, M Pfeiffle, F Pirola, G Rando, R Righi, C Sakurai, S Sanchez, D. A Šarić, T Saturni, F. G Savchenko, V Schiavone, F Schubert, J. L Schussler, F Arroyo, M. Seglar Sliusar, V Strišković, J Takahashi, M Tanaka, S. J Tavernier, T Temnikov, P Travnicek, P Tutone, A van Scherpenberg, J Vigliano, A Visentin, E Voitsekhovskyi, V Yamamoto, T Yoshikoshi, T Zywucka, N |
| description | Context: There are currently three pulsars firmly detected by imaging
atmospheric Cherenkov telescopes (IACTs), two of them reaching TeV energies,
challenging models of very-high-energy (VHE) emission in pulsars. More precise
observations are needed to better characterize pulsar emission at these
energies. The LST-1 is the prototype of the Large-Sized Telescope, that will be
part of the Cherenkov Telescope Array Observatory (CTAO). Its improved
performance over previous IACTs makes it well suited for studying pulsars.
Aims: To study the Crab pulsar emission with the LST-1, improving and
complementing the results from other telescopes. These observations can also be
used to characterize the potential of the LST-1 to study other pulsars and
detect new ones. Methods: We analyzed a total of $\sim$103 hours of gamma-ray
observations of the Crab pulsar conducted with the LST-1 in the period from
September 2020 to January 2023. The observations were carried out at zenith
angles less than 50 degrees. A new analysis of the Fermi-LAT data was also
performed, including $\sim$14 years of observations. Results: The Crab pulsar
phaseogram, long-term light-curve, and phase-resolved spectra are reconstructed
with the LST-1 from 20 GeV to 450 GeV for P1 and up to 700 GeV for P2. The
pulsed emission is detected with a significance of 15.2$\sigma$. The two
characteristic emission peaks of the Crab pulsar are clearly detected
(>10$\sigma$), as well as the so-called bridge emission (5.7$\sigma$). We find
that both peaks are well described by power laws, with spectral indices of
$\sim$3.44 and $\sim$3.03 respectively. The joint analysis of Fermi-LAT and
LST-1 data shows a good agreement between both instruments in the overlapping
energy range. The detailed results obtained in the first observations of the
Crab pulsar with LST-1 show the potential that CTAO will have to study this
type of sources. |
| doi_str_mv | 10.48550/arxiv.2407.02343 |
| format | Article |
| fullrecord | <record><control><sourceid>arxiv_GOX</sourceid><recordid>TN_cdi_arxiv_primary_2407_02343</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2407_02343</sourcerecordid><originalsourceid>FETCH-arxiv_primary_2407_023433</originalsourceid><addsrcrecordid>eNqFzbsKwjAUgOEsDqI-gJPnBVLTG7pKURy62b1Eetoc6I2TtJq3F4u707_88AmxD1WQnNNUHTW_aQ6iRJ0CFcVJvBb5BSp0mlqswLqp8jDU4AzCjOylocZI7JEbDxnrJ4xTazUDdmQtDT28yJllzx-FDLdiVevW4u7XjTjcrkV2l4tbjkydZl9-_XLx4__HB3yWOgU</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>A detailed study of the very-high-energy Crab pulsar emission with the LST-1</title><source>arXiv.org</source><creator>Abe, S ; Abhishek, A ; Aguasca-Cabot, A ; Crespo, N. Alvarez ; Aramo, C ; Artero, M ; Asano, K ; de Almeida, U. Barres ; Barrio, J. A ; González, J. Becerra ; Bhattacharjee, P ; Bigongiari, C ; Burmistrov, L ; Buscemi, M ; Carosi, A ; Cauz, D ; Ceribella, G ; Chiavassa, A ; Chytka, L ; Cicciari, G. M ; Contreras, J. L ; De Angelis, A ; De Lotto, B ; Del Peral, L ; Delgado, C ; Dellaiera, M ; Di Pierro, F ; Prester, D. Dominis ; Emery, G ; Ferrarotto, F ; Fiasson, A ; López, R. Garcia ; Gavira, L ; Paiva, J. Giesbrecht ; Hahn, A ; Heckmann, L ; Heller, M ; Hoffmann, D ; Hrabovsky, M ; Hrupec, D ; Iarlori, M ; Imazawa, R ; Inome, Y ; Iori, M ; Martinez, I. Jimenez ; Kagaya, M ; Kubo, H ; Kushida, J ; Lainez, M ; Lamanna, G ; Lamastra, A ; Lemoigne, L ; Linhoff, M ; López-Moya, M ; López-Oramas, A ; Luque-Escamilla, P. L ; Mallamaci, M ; Manicò, G ; Mannheim, K ; Marsella, G ; Martínez, M ; Mazin, D ; Guillen, E. Mestre ; Mizuno, T ; Gonzalez, M. Molero ; Noda, K ; Ohishi, M ; Oka, T ; Okumura, A ; Orito, R ; Otero-Santos, J ; Peresano, M ; Pfeiffle, F ; Pirola, G ; Rando, R ; Righi, C ; Sakurai, S ; Sanchez, D. A ; Šarić, T ; Saturni, F. G ; Savchenko, V ; Schiavone, F ; Schubert, J. L ; Schussler, F ; Arroyo, M. Seglar ; Sliusar, V ; Strišković, J ; Takahashi, M ; Tanaka, S. J ; Tavernier, T ; Temnikov, P ; Travnicek, P ; Tutone, A ; van Scherpenberg, J ; Vigliano, A ; Visentin, E ; Voitsekhovskyi, V ; Yamamoto, T ; Yoshikoshi, T ; Zywucka, N</creator><creatorcontrib>Abe, S ; Abhishek, A ; Aguasca-Cabot, A ; Crespo, N. Alvarez ; Aramo, C ; Artero, M ; Asano, K ; de Almeida, U. Barres ; Barrio, J. A ; González, J. Becerra ; Bhattacharjee, P ; Bigongiari, C ; Burmistrov, L ; Buscemi, M ; Carosi, A ; Cauz, D ; Ceribella, G ; Chiavassa, A ; Chytka, L ; Cicciari, G. M ; Contreras, J. L ; De Angelis, A ; De Lotto, B ; Del Peral, L ; Delgado, C ; Dellaiera, M ; Di Pierro, F ; Prester, D. Dominis ; Emery, G ; Ferrarotto, F ; Fiasson, A ; López, R. Garcia ; Gavira, L ; Paiva, J. Giesbrecht ; Hahn, A ; Heckmann, L ; Heller, M ; Hoffmann, D ; Hrabovsky, M ; Hrupec, D ; Iarlori, M ; Imazawa, R ; Inome, Y ; Iori, M ; Martinez, I. Jimenez ; Kagaya, M ; Kubo, H ; Kushida, J ; Lainez, M ; Lamanna, G ; Lamastra, A ; Lemoigne, L ; Linhoff, M ; López-Moya, M ; López-Oramas, A ; Luque-Escamilla, P. L ; Mallamaci, M ; Manicò, G ; Mannheim, K ; Marsella, G ; Martínez, M ; Mazin, D ; Guillen, E. Mestre ; Mizuno, T ; Gonzalez, M. Molero ; Noda, K ; Ohishi, M ; Oka, T ; Okumura, A ; Orito, R ; Otero-Santos, J ; Peresano, M ; Pfeiffle, F ; Pirola, G ; Rando, R ; Righi, C ; Sakurai, S ; Sanchez, D. A ; Šarić, T ; Saturni, F. G ; Savchenko, V ; Schiavone, F ; Schubert, J. L ; Schussler, F ; Arroyo, M. Seglar ; Sliusar, V ; Strišković, J ; Takahashi, M ; Tanaka, S. J ; Tavernier, T ; Temnikov, P ; Travnicek, P ; Tutone, A ; van Scherpenberg, J ; Vigliano, A ; Visentin, E ; Voitsekhovskyi, V ; Yamamoto, T ; Yoshikoshi, T ; Zywucka, N</creatorcontrib><description>Context: There are currently three pulsars firmly detected by imaging
atmospheric Cherenkov telescopes (IACTs), two of them reaching TeV energies,
challenging models of very-high-energy (VHE) emission in pulsars. More precise
observations are needed to better characterize pulsar emission at these
energies. The LST-1 is the prototype of the Large-Sized Telescope, that will be
part of the Cherenkov Telescope Array Observatory (CTAO). Its improved
performance over previous IACTs makes it well suited for studying pulsars.
Aims: To study the Crab pulsar emission with the LST-1, improving and
complementing the results from other telescopes. These observations can also be
used to characterize the potential of the LST-1 to study other pulsars and
detect new ones. Methods: We analyzed a total of $\sim$103 hours of gamma-ray
observations of the Crab pulsar conducted with the LST-1 in the period from
September 2020 to January 2023. The observations were carried out at zenith
angles less than 50 degrees. A new analysis of the Fermi-LAT data was also
performed, including $\sim$14 years of observations. Results: The Crab pulsar
phaseogram, long-term light-curve, and phase-resolved spectra are reconstructed
with the LST-1 from 20 GeV to 450 GeV for P1 and up to 700 GeV for P2. The
pulsed emission is detected with a significance of 15.2$\sigma$. The two
characteristic emission peaks of the Crab pulsar are clearly detected
(>10$\sigma$), as well as the so-called bridge emission (5.7$\sigma$). We find
that both peaks are well described by power laws, with spectral indices of
$\sim$3.44 and $\sim$3.03 respectively. The joint analysis of Fermi-LAT and
LST-1 data shows a good agreement between both instruments in the overlapping
energy range. The detailed results obtained in the first observations of the
Crab pulsar with LST-1 show the potential that CTAO will have to study this
type of sources.</description><identifier>DOI: 10.48550/arxiv.2407.02343</identifier><language>eng</language><subject>Physics - High Energy Astrophysical Phenomena</subject><creationdate>2024-07</creationdate><rights>http://creativecommons.org/licenses/by/4.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,780,885</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/2407.02343$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.48550/arXiv.2407.02343$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>Abe, S</creatorcontrib><creatorcontrib>Abhishek, A</creatorcontrib><creatorcontrib>Aguasca-Cabot, A</creatorcontrib><creatorcontrib>Crespo, N. Alvarez</creatorcontrib><creatorcontrib>Aramo, C</creatorcontrib><creatorcontrib>Artero, M</creatorcontrib><creatorcontrib>Asano, K</creatorcontrib><creatorcontrib>de Almeida, U. Barres</creatorcontrib><creatorcontrib>Barrio, J. A</creatorcontrib><creatorcontrib>González, J. Becerra</creatorcontrib><creatorcontrib>Bhattacharjee, P</creatorcontrib><creatorcontrib>Bigongiari, C</creatorcontrib><creatorcontrib>Burmistrov, L</creatorcontrib><creatorcontrib>Buscemi, M</creatorcontrib><creatorcontrib>Carosi, A</creatorcontrib><creatorcontrib>Cauz, D</creatorcontrib><creatorcontrib>Ceribella, G</creatorcontrib><creatorcontrib>Chiavassa, A</creatorcontrib><creatorcontrib>Chytka, L</creatorcontrib><creatorcontrib>Cicciari, G. M</creatorcontrib><creatorcontrib>Contreras, J. L</creatorcontrib><creatorcontrib>De Angelis, A</creatorcontrib><creatorcontrib>De Lotto, B</creatorcontrib><creatorcontrib>Del Peral, L</creatorcontrib><creatorcontrib>Delgado, C</creatorcontrib><creatorcontrib>Dellaiera, M</creatorcontrib><creatorcontrib>Di Pierro, F</creatorcontrib><creatorcontrib>Prester, D. Dominis</creatorcontrib><creatorcontrib>Emery, G</creatorcontrib><creatorcontrib>Ferrarotto, F</creatorcontrib><creatorcontrib>Fiasson, A</creatorcontrib><creatorcontrib>López, R. Garcia</creatorcontrib><creatorcontrib>Gavira, L</creatorcontrib><creatorcontrib>Paiva, J. Giesbrecht</creatorcontrib><creatorcontrib>Hahn, A</creatorcontrib><creatorcontrib>Heckmann, L</creatorcontrib><creatorcontrib>Heller, M</creatorcontrib><creatorcontrib>Hoffmann, D</creatorcontrib><creatorcontrib>Hrabovsky, M</creatorcontrib><creatorcontrib>Hrupec, D</creatorcontrib><creatorcontrib>Iarlori, M</creatorcontrib><creatorcontrib>Imazawa, R</creatorcontrib><creatorcontrib>Inome, Y</creatorcontrib><creatorcontrib>Iori, M</creatorcontrib><creatorcontrib>Martinez, I. Jimenez</creatorcontrib><creatorcontrib>Kagaya, M</creatorcontrib><creatorcontrib>Kubo, H</creatorcontrib><creatorcontrib>Kushida, J</creatorcontrib><creatorcontrib>Lainez, M</creatorcontrib><creatorcontrib>Lamanna, G</creatorcontrib><creatorcontrib>Lamastra, A</creatorcontrib><creatorcontrib>Lemoigne, L</creatorcontrib><creatorcontrib>Linhoff, M</creatorcontrib><creatorcontrib>López-Moya, M</creatorcontrib><creatorcontrib>López-Oramas, A</creatorcontrib><creatorcontrib>Luque-Escamilla, P. L</creatorcontrib><creatorcontrib>Mallamaci, M</creatorcontrib><creatorcontrib>Manicò, G</creatorcontrib><creatorcontrib>Mannheim, K</creatorcontrib><creatorcontrib>Marsella, G</creatorcontrib><creatorcontrib>Martínez, M</creatorcontrib><creatorcontrib>Mazin, D</creatorcontrib><creatorcontrib>Guillen, E. Mestre</creatorcontrib><creatorcontrib>Mizuno, T</creatorcontrib><creatorcontrib>Gonzalez, M. Molero</creatorcontrib><creatorcontrib>Noda, K</creatorcontrib><creatorcontrib>Ohishi, M</creatorcontrib><creatorcontrib>Oka, T</creatorcontrib><creatorcontrib>Okumura, A</creatorcontrib><creatorcontrib>Orito, R</creatorcontrib><creatorcontrib>Otero-Santos, J</creatorcontrib><creatorcontrib>Peresano, M</creatorcontrib><creatorcontrib>Pfeiffle, F</creatorcontrib><creatorcontrib>Pirola, G</creatorcontrib><creatorcontrib>Rando, R</creatorcontrib><creatorcontrib>Righi, C</creatorcontrib><creatorcontrib>Sakurai, S</creatorcontrib><creatorcontrib>Sanchez, D. A</creatorcontrib><creatorcontrib>Šarić, T</creatorcontrib><creatorcontrib>Saturni, F. G</creatorcontrib><creatorcontrib>Savchenko, V</creatorcontrib><creatorcontrib>Schiavone, F</creatorcontrib><creatorcontrib>Schubert, J. L</creatorcontrib><creatorcontrib>Schussler, F</creatorcontrib><creatorcontrib>Arroyo, M. Seglar</creatorcontrib><creatorcontrib>Sliusar, V</creatorcontrib><creatorcontrib>Strišković, J</creatorcontrib><creatorcontrib>Takahashi, M</creatorcontrib><creatorcontrib>Tanaka, S. J</creatorcontrib><creatorcontrib>Tavernier, T</creatorcontrib><creatorcontrib>Temnikov, P</creatorcontrib><creatorcontrib>Travnicek, P</creatorcontrib><creatorcontrib>Tutone, A</creatorcontrib><creatorcontrib>van Scherpenberg, J</creatorcontrib><creatorcontrib>Vigliano, A</creatorcontrib><creatorcontrib>Visentin, E</creatorcontrib><creatorcontrib>Voitsekhovskyi, V</creatorcontrib><creatorcontrib>Yamamoto, T</creatorcontrib><creatorcontrib>Yoshikoshi, T</creatorcontrib><creatorcontrib>Zywucka, N</creatorcontrib><title>A detailed study of the very-high-energy Crab pulsar emission with the LST-1</title><description>Context: There are currently three pulsars firmly detected by imaging
atmospheric Cherenkov telescopes (IACTs), two of them reaching TeV energies,
challenging models of very-high-energy (VHE) emission in pulsars. More precise
observations are needed to better characterize pulsar emission at these
energies. The LST-1 is the prototype of the Large-Sized Telescope, that will be
part of the Cherenkov Telescope Array Observatory (CTAO). Its improved
performance over previous IACTs makes it well suited for studying pulsars.
Aims: To study the Crab pulsar emission with the LST-1, improving and
complementing the results from other telescopes. These observations can also be
used to characterize the potential of the LST-1 to study other pulsars and
detect new ones. Methods: We analyzed a total of $\sim$103 hours of gamma-ray
observations of the Crab pulsar conducted with the LST-1 in the period from
September 2020 to January 2023. The observations were carried out at zenith
angles less than 50 degrees. A new analysis of the Fermi-LAT data was also
performed, including $\sim$14 years of observations. Results: The Crab pulsar
phaseogram, long-term light-curve, and phase-resolved spectra are reconstructed
with the LST-1 from 20 GeV to 450 GeV for P1 and up to 700 GeV for P2. The
pulsed emission is detected with a significance of 15.2$\sigma$. The two
characteristic emission peaks of the Crab pulsar are clearly detected
(>10$\sigma$), as well as the so-called bridge emission (5.7$\sigma$). We find
that both peaks are well described by power laws, with spectral indices of
$\sim$3.44 and $\sim$3.03 respectively. The joint analysis of Fermi-LAT and
LST-1 data shows a good agreement between both instruments in the overlapping
energy range. The detailed results obtained in the first observations of the
Crab pulsar with LST-1 show the potential that CTAO will have to study this
type of sources.</description><subject>Physics - High Energy Astrophysical Phenomena</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNqFzbsKwjAUgOEsDqI-gJPnBVLTG7pKURy62b1Eetoc6I2TtJq3F4u707_88AmxD1WQnNNUHTW_aQ6iRJ0CFcVJvBb5BSp0mlqswLqp8jDU4AzCjOylocZI7JEbDxnrJ4xTazUDdmQtDT28yJllzx-FDLdiVevW4u7XjTjcrkV2l4tbjkydZl9-_XLx4__HB3yWOgU</recordid><startdate>20240702</startdate><enddate>20240702</enddate><creator>Abe, S</creator><creator>Abhishek, A</creator><creator>Aguasca-Cabot, A</creator><creator>Crespo, N. Alvarez</creator><creator>Aramo, C</creator><creator>Artero, M</creator><creator>Asano, K</creator><creator>de Almeida, U. Barres</creator><creator>Barrio, J. A</creator><creator>González, J. Becerra</creator><creator>Bhattacharjee, P</creator><creator>Bigongiari, C</creator><creator>Burmistrov, L</creator><creator>Buscemi, M</creator><creator>Carosi, A</creator><creator>Cauz, D</creator><creator>Ceribella, G</creator><creator>Chiavassa, A</creator><creator>Chytka, L</creator><creator>Cicciari, G. M</creator><creator>Contreras, J. L</creator><creator>De Angelis, A</creator><creator>De Lotto, B</creator><creator>Del Peral, L</creator><creator>Delgado, C</creator><creator>Dellaiera, M</creator><creator>Di Pierro, F</creator><creator>Prester, D. Dominis</creator><creator>Emery, G</creator><creator>Ferrarotto, F</creator><creator>Fiasson, A</creator><creator>López, R. Garcia</creator><creator>Gavira, L</creator><creator>Paiva, J. Giesbrecht</creator><creator>Hahn, A</creator><creator>Heckmann, L</creator><creator>Heller, M</creator><creator>Hoffmann, D</creator><creator>Hrabovsky, M</creator><creator>Hrupec, D</creator><creator>Iarlori, M</creator><creator>Imazawa, R</creator><creator>Inome, Y</creator><creator>Iori, M</creator><creator>Martinez, I. Jimenez</creator><creator>Kagaya, M</creator><creator>Kubo, H</creator><creator>Kushida, J</creator><creator>Lainez, M</creator><creator>Lamanna, G</creator><creator>Lamastra, A</creator><creator>Lemoigne, L</creator><creator>Linhoff, M</creator><creator>López-Moya, M</creator><creator>López-Oramas, A</creator><creator>Luque-Escamilla, P. L</creator><creator>Mallamaci, M</creator><creator>Manicò, G</creator><creator>Mannheim, K</creator><creator>Marsella, G</creator><creator>Martínez, M</creator><creator>Mazin, D</creator><creator>Guillen, E. Mestre</creator><creator>Mizuno, T</creator><creator>Gonzalez, M. 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J</creator><creator>Tavernier, T</creator><creator>Temnikov, P</creator><creator>Travnicek, P</creator><creator>Tutone, A</creator><creator>van Scherpenberg, J</creator><creator>Vigliano, A</creator><creator>Visentin, E</creator><creator>Voitsekhovskyi, V</creator><creator>Yamamoto, T</creator><creator>Yoshikoshi, T</creator><creator>Zywucka, N</creator><scope>GOX</scope></search><sort><creationdate>20240702</creationdate><title>A detailed study of the very-high-energy Crab pulsar emission with the LST-1</title><author>Abe, S ; Abhishek, A ; Aguasca-Cabot, A ; Crespo, N. Alvarez ; Aramo, C ; Artero, M ; Asano, K ; de Almeida, U. Barres ; Barrio, J. A ; González, J. Becerra ; Bhattacharjee, P ; Bigongiari, C ; Burmistrov, L ; Buscemi, M ; Carosi, A ; Cauz, D ; Ceribella, G ; Chiavassa, A ; Chytka, L ; Cicciari, G. M ; Contreras, J. L ; De Angelis, A ; De Lotto, B ; Del Peral, L ; Delgado, C ; Dellaiera, M ; Di Pierro, F ; Prester, D. Dominis ; Emery, G ; Ferrarotto, F ; Fiasson, A ; López, R. Garcia ; Gavira, L ; Paiva, J. Giesbrecht ; Hahn, A ; Heckmann, L ; Heller, M ; Hoffmann, D ; Hrabovsky, M ; Hrupec, D ; Iarlori, M ; Imazawa, R ; Inome, Y ; Iori, M ; Martinez, I. Jimenez ; Kagaya, M ; Kubo, H ; Kushida, J ; Lainez, M ; Lamanna, G ; Lamastra, A ; Lemoigne, L ; Linhoff, M ; López-Moya, M ; López-Oramas, A ; Luque-Escamilla, P. L ; Mallamaci, M ; Manicò, G ; Mannheim, K ; Marsella, G ; Martínez, M ; Mazin, D ; Guillen, E. Mestre ; Mizuno, T ; Gonzalez, M. Molero ; Noda, K ; Ohishi, M ; Oka, T ; Okumura, A ; Orito, R ; Otero-Santos, J ; Peresano, M ; Pfeiffle, F ; Pirola, G ; Rando, R ; Righi, C ; Sakurai, S ; Sanchez, D. A ; Šarić, T ; Saturni, F. G ; Savchenko, V ; Schiavone, F ; Schubert, J. L ; Schussler, F ; Arroyo, M. Seglar ; Sliusar, V ; Strišković, J ; Takahashi, M ; Tanaka, S. J ; Tavernier, T ; Temnikov, P ; Travnicek, P ; Tutone, A ; van Scherpenberg, J ; Vigliano, A ; Visentin, E ; Voitsekhovskyi, V ; Yamamoto, T ; Yoshikoshi, T ; Zywucka, N</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-arxiv_primary_2407_023433</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Physics - High Energy Astrophysical Phenomena</topic><toplevel>online_resources</toplevel><creatorcontrib>Abe, S</creatorcontrib><creatorcontrib>Abhishek, A</creatorcontrib><creatorcontrib>Aguasca-Cabot, A</creatorcontrib><creatorcontrib>Crespo, N. Alvarez</creatorcontrib><creatorcontrib>Aramo, C</creatorcontrib><creatorcontrib>Artero, M</creatorcontrib><creatorcontrib>Asano, K</creatorcontrib><creatorcontrib>de Almeida, U. Barres</creatorcontrib><creatorcontrib>Barrio, J. A</creatorcontrib><creatorcontrib>González, J. Becerra</creatorcontrib><creatorcontrib>Bhattacharjee, P</creatorcontrib><creatorcontrib>Bigongiari, C</creatorcontrib><creatorcontrib>Burmistrov, L</creatorcontrib><creatorcontrib>Buscemi, M</creatorcontrib><creatorcontrib>Carosi, A</creatorcontrib><creatorcontrib>Cauz, D</creatorcontrib><creatorcontrib>Ceribella, G</creatorcontrib><creatorcontrib>Chiavassa, A</creatorcontrib><creatorcontrib>Chytka, L</creatorcontrib><creatorcontrib>Cicciari, G. M</creatorcontrib><creatorcontrib>Contreras, J. L</creatorcontrib><creatorcontrib>De Angelis, A</creatorcontrib><creatorcontrib>De Lotto, B</creatorcontrib><creatorcontrib>Del Peral, L</creatorcontrib><creatorcontrib>Delgado, C</creatorcontrib><creatorcontrib>Dellaiera, M</creatorcontrib><creatorcontrib>Di Pierro, F</creatorcontrib><creatorcontrib>Prester, D. Dominis</creatorcontrib><creatorcontrib>Emery, G</creatorcontrib><creatorcontrib>Ferrarotto, F</creatorcontrib><creatorcontrib>Fiasson, A</creatorcontrib><creatorcontrib>López, R. Garcia</creatorcontrib><creatorcontrib>Gavira, L</creatorcontrib><creatorcontrib>Paiva, J. Giesbrecht</creatorcontrib><creatorcontrib>Hahn, A</creatorcontrib><creatorcontrib>Heckmann, L</creatorcontrib><creatorcontrib>Heller, M</creatorcontrib><creatorcontrib>Hoffmann, D</creatorcontrib><creatorcontrib>Hrabovsky, M</creatorcontrib><creatorcontrib>Hrupec, D</creatorcontrib><creatorcontrib>Iarlori, M</creatorcontrib><creatorcontrib>Imazawa, R</creatorcontrib><creatorcontrib>Inome, Y</creatorcontrib><creatorcontrib>Iori, M</creatorcontrib><creatorcontrib>Martinez, I. Jimenez</creatorcontrib><creatorcontrib>Kagaya, M</creatorcontrib><creatorcontrib>Kubo, H</creatorcontrib><creatorcontrib>Kushida, J</creatorcontrib><creatorcontrib>Lainez, M</creatorcontrib><creatorcontrib>Lamanna, G</creatorcontrib><creatorcontrib>Lamastra, A</creatorcontrib><creatorcontrib>Lemoigne, L</creatorcontrib><creatorcontrib>Linhoff, M</creatorcontrib><creatorcontrib>López-Moya, M</creatorcontrib><creatorcontrib>López-Oramas, A</creatorcontrib><creatorcontrib>Luque-Escamilla, P. L</creatorcontrib><creatorcontrib>Mallamaci, M</creatorcontrib><creatorcontrib>Manicò, G</creatorcontrib><creatorcontrib>Mannheim, K</creatorcontrib><creatorcontrib>Marsella, G</creatorcontrib><creatorcontrib>Martínez, M</creatorcontrib><creatorcontrib>Mazin, D</creatorcontrib><creatorcontrib>Guillen, E. Mestre</creatorcontrib><creatorcontrib>Mizuno, T</creatorcontrib><creatorcontrib>Gonzalez, M. Molero</creatorcontrib><creatorcontrib>Noda, K</creatorcontrib><creatorcontrib>Ohishi, M</creatorcontrib><creatorcontrib>Oka, T</creatorcontrib><creatorcontrib>Okumura, A</creatorcontrib><creatorcontrib>Orito, R</creatorcontrib><creatorcontrib>Otero-Santos, J</creatorcontrib><creatorcontrib>Peresano, M</creatorcontrib><creatorcontrib>Pfeiffle, F</creatorcontrib><creatorcontrib>Pirola, G</creatorcontrib><creatorcontrib>Rando, R</creatorcontrib><creatorcontrib>Righi, C</creatorcontrib><creatorcontrib>Sakurai, S</creatorcontrib><creatorcontrib>Sanchez, D. A</creatorcontrib><creatorcontrib>Šarić, T</creatorcontrib><creatorcontrib>Saturni, F. G</creatorcontrib><creatorcontrib>Savchenko, V</creatorcontrib><creatorcontrib>Schiavone, F</creatorcontrib><creatorcontrib>Schubert, J. L</creatorcontrib><creatorcontrib>Schussler, F</creatorcontrib><creatorcontrib>Arroyo, M. Seglar</creatorcontrib><creatorcontrib>Sliusar, V</creatorcontrib><creatorcontrib>Strišković, J</creatorcontrib><creatorcontrib>Takahashi, M</creatorcontrib><creatorcontrib>Tanaka, S. J</creatorcontrib><creatorcontrib>Tavernier, T</creatorcontrib><creatorcontrib>Temnikov, P</creatorcontrib><creatorcontrib>Travnicek, P</creatorcontrib><creatorcontrib>Tutone, A</creatorcontrib><creatorcontrib>van Scherpenberg, J</creatorcontrib><creatorcontrib>Vigliano, A</creatorcontrib><creatorcontrib>Visentin, E</creatorcontrib><creatorcontrib>Voitsekhovskyi, V</creatorcontrib><creatorcontrib>Yamamoto, T</creatorcontrib><creatorcontrib>Yoshikoshi, T</creatorcontrib><creatorcontrib>Zywucka, N</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Abe, S</au><au>Abhishek, A</au><au>Aguasca-Cabot, A</au><au>Crespo, N. Alvarez</au><au>Aramo, C</au><au>Artero, M</au><au>Asano, K</au><au>de Almeida, U. Barres</au><au>Barrio, J. A</au><au>González, J. Becerra</au><au>Bhattacharjee, P</au><au>Bigongiari, C</au><au>Burmistrov, L</au><au>Buscemi, M</au><au>Carosi, A</au><au>Cauz, D</au><au>Ceribella, G</au><au>Chiavassa, A</au><au>Chytka, L</au><au>Cicciari, G. M</au><au>Contreras, J. L</au><au>De Angelis, A</au><au>De Lotto, B</au><au>Del Peral, L</au><au>Delgado, C</au><au>Dellaiera, M</au><au>Di Pierro, F</au><au>Prester, D. Dominis</au><au>Emery, G</au><au>Ferrarotto, F</au><au>Fiasson, A</au><au>López, R. Garcia</au><au>Gavira, L</au><au>Paiva, J. Giesbrecht</au><au>Hahn, A</au><au>Heckmann, L</au><au>Heller, M</au><au>Hoffmann, D</au><au>Hrabovsky, M</au><au>Hrupec, D</au><au>Iarlori, M</au><au>Imazawa, R</au><au>Inome, Y</au><au>Iori, M</au><au>Martinez, I. Jimenez</au><au>Kagaya, M</au><au>Kubo, H</au><au>Kushida, J</au><au>Lainez, M</au><au>Lamanna, G</au><au>Lamastra, A</au><au>Lemoigne, L</au><au>Linhoff, M</au><au>López-Moya, M</au><au>López-Oramas, A</au><au>Luque-Escamilla, P. L</au><au>Mallamaci, M</au><au>Manicò, G</au><au>Mannheim, K</au><au>Marsella, G</au><au>Martínez, M</au><au>Mazin, D</au><au>Guillen, E. Mestre</au><au>Mizuno, T</au><au>Gonzalez, M. Molero</au><au>Noda, K</au><au>Ohishi, M</au><au>Oka, T</au><au>Okumura, A</au><au>Orito, R</au><au>Otero-Santos, J</au><au>Peresano, M</au><au>Pfeiffle, F</au><au>Pirola, G</au><au>Rando, R</au><au>Righi, C</au><au>Sakurai, S</au><au>Sanchez, D. A</au><au>Šarić, T</au><au>Saturni, F. G</au><au>Savchenko, V</au><au>Schiavone, F</au><au>Schubert, J. L</au><au>Schussler, F</au><au>Arroyo, M. Seglar</au><au>Sliusar, V</au><au>Strišković, J</au><au>Takahashi, M</au><au>Tanaka, S. J</au><au>Tavernier, T</au><au>Temnikov, P</au><au>Travnicek, P</au><au>Tutone, A</au><au>van Scherpenberg, J</au><au>Vigliano, A</au><au>Visentin, E</au><au>Voitsekhovskyi, V</au><au>Yamamoto, T</au><au>Yoshikoshi, T</au><au>Zywucka, N</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A detailed study of the very-high-energy Crab pulsar emission with the LST-1</atitle><date>2024-07-02</date><risdate>2024</risdate><abstract>Context: There are currently three pulsars firmly detected by imaging
atmospheric Cherenkov telescopes (IACTs), two of them reaching TeV energies,
challenging models of very-high-energy (VHE) emission in pulsars. More precise
observations are needed to better characterize pulsar emission at these
energies. The LST-1 is the prototype of the Large-Sized Telescope, that will be
part of the Cherenkov Telescope Array Observatory (CTAO). Its improved
performance over previous IACTs makes it well suited for studying pulsars.
Aims: To study the Crab pulsar emission with the LST-1, improving and
complementing the results from other telescopes. These observations can also be
used to characterize the potential of the LST-1 to study other pulsars and
detect new ones. Methods: We analyzed a total of $\sim$103 hours of gamma-ray
observations of the Crab pulsar conducted with the LST-1 in the period from
September 2020 to January 2023. The observations were carried out at zenith
angles less than 50 degrees. A new analysis of the Fermi-LAT data was also
performed, including $\sim$14 years of observations. Results: The Crab pulsar
phaseogram, long-term light-curve, and phase-resolved spectra are reconstructed
with the LST-1 from 20 GeV to 450 GeV for P1 and up to 700 GeV for P2. The
pulsed emission is detected with a significance of 15.2$\sigma$. The two
characteristic emission peaks of the Crab pulsar are clearly detected
(>10$\sigma$), as well as the so-called bridge emission (5.7$\sigma$). We find
that both peaks are well described by power laws, with spectral indices of
$\sim$3.44 and $\sim$3.03 respectively. The joint analysis of Fermi-LAT and
LST-1 data shows a good agreement between both instruments in the overlapping
energy range. The detailed results obtained in the first observations of the
Crab pulsar with LST-1 show the potential that CTAO will have to study this
type of sources.</abstract><doi>10.48550/arxiv.2407.02343</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | DOI: 10.48550/arxiv.2407.02343 |
| ispartof | |
| issn | |
| language | eng |
| recordid | cdi_arxiv_primary_2407_02343 |
| source | arXiv.org |
| subjects | Physics - High Energy Astrophysical Phenomena |
| title | A detailed study of the very-high-energy Crab pulsar emission with the LST-1 |
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