Discovery of VHE gamma-rays from the blazar 1ES 1215+303 with the MAGIC Telescopes and simultaneous multi-wavelength observations
Context. We present the discovery of very high energy (VHE, E > 100GeV) gamma-ray emission from the BL Lac object 1ES 1215+303 by the MAGIC telescopes and simultaneous multi-wavelength data in a broad energy range from radio to gamma-rays. Aims. We study the VHE gamma-ray emission from 1ES 1215+3...
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| creator | Ansoldi, S U Barres de Almeida Barrio, J A Bastieri, D J Becerra González Bednarek, W Berger, K Biland, A Blanch, O Tridon, D Borla Bretz, T Cañellas, A Carmona, E Carosi, A Colin, P Cortina, J Dazzi, F De Angelis, A De Caneva, G E De Cea del Pozo De Lotto, B A Diago Ortega Doert, M Domínguez, A D Dominis Prester Dorner, D Doro, M Ferenc, D Font, L Fruck, C García López, R J Garczarczyk, M D Garrido Terrats Hadasch, D Häfner, D Herrero, A Hose, J Hrupec, D Huber, B Kellermann, H Krähenbühl, T Krause, J La Barbera, A Lelas, D Leonardo, E Lindfors, E Lombardi, S López-Coto, R López-Oramas, A Lorenz, E Makariev, M Maneva, G Mannheim, K Martínez, M Meucci, M Mirzoyan, R Moldón, J Niedzwiecki, A Nilsson, K Nowak, N Paneque, D Paoletti, R Pardo, S Paredes, J M Persic, M Pilia, M Pochon, J Prada, F Prada Moroni, P G Prandini, E Puljak, I Reichardt, I Ribó, M Saggion, A Saito, K Saito, T Y Satalecka, K Scalzotto, V Scapin, V Shore, S N Sitarek, J Spiro, S Steinke, B Strah, N Sun, S Takalo, L Takami, H Tavecchio, F Temnikov, P Tescaro, D Tibolla, O Torres, D F Treves, A Uellenbeck, M Wagner, R M Weitzel, Q Zabalza, V Zanin, R Larsson, S Lähteenmäki, A |
| description | Context. We present the discovery of very high energy (VHE, E > 100GeV) gamma-ray emission from the BL Lac object 1ES 1215+303 by the MAGIC telescopes and simultaneous multi-wavelength data in a broad energy range from radio to gamma-rays. Aims. We study the VHE gamma-ray emission from 1ES 1215+303 and its relation to the emissions in other wavelengths. Methods. Triggered by an optical outburst, MAGIC observed the source in January-February 2011 for 20.3 hrs. The target was monitored in the optical R-band by the KVA telescope that also performed optical polarization measurements. We triggered target of opportunity observations with the Swift satellite and obtained simultaneous and quasi-simultaneous data from the Fermi Large Area Telescope and from the Mets\"ahovi radio telescope. We also present the analysis of older MAGIC data taken in 2010. Results. The MAGIC observations of 1ES 1215+303 carried out in January-February 2011 resulted in the first detection of the source at VHE with a statistical significance of 9.4 sigma. Simultaneously, the source was observed in a high optical and X-ray state. In 2010 the source was observed in a lower state in optical, X-ray, and VHE, while the GeV gamma-ray flux and the radio flux were comparable in 2010 and 2011. The spectral energy distribution obtained with the 2011 data can be modeled with a simple one zone SSC model, but it requires extreme values for the Doppler factor or the electron energy distribution. |
| doi_str_mv | 10.48550/arxiv.1203.0490 |
| format | Article |
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We present the discovery of very high energy (VHE, E > 100GeV) gamma-ray emission from the BL Lac object 1ES 1215+303 by the MAGIC telescopes and simultaneous multi-wavelength data in a broad energy range from radio to gamma-rays. Aims. We study the VHE gamma-ray emission from 1ES 1215+303 and its relation to the emissions in other wavelengths. Methods. Triggered by an optical outburst, MAGIC observed the source in January-February 2011 for 20.3 hrs. The target was monitored in the optical R-band by the KVA telescope that also performed optical polarization measurements. We triggered target of opportunity observations with the Swift satellite and obtained simultaneous and quasi-simultaneous data from the Fermi Large Area Telescope and from the Mets\"ahovi radio telescope. We also present the analysis of older MAGIC data taken in 2010. Results. The MAGIC observations of 1ES 1215+303 carried out in January-February 2011 resulted in the first detection of the source at VHE with a statistical significance of 9.4 sigma. Simultaneously, the source was observed in a high optical and X-ray state. In 2010 the source was observed in a lower state in optical, X-ray, and VHE, while the GeV gamma-ray flux and the radio flux were comparable in 2010 and 2011. The spectral energy distribution obtained with the 2011 data can be modeled with a simple one zone SSC model, but it requires extreme values for the Doppler factor or the electron energy distribution.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.1203.0490</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>BL Lacertae objects ; Electron energy distribution ; Emission analysis ; Extreme values ; Gamma rays ; Optical polarization ; Physics - High Energy Astrophysical Phenomena ; Radio telescopes ; Spectral energy distribution ; Telescopes</subject><ispartof>arXiv.org, 2012-07</ispartof><rights>2012. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>http://arxiv.org/licenses/nonexclusive-distrib/1.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,780,784,885,27925</link.rule.ids><backlink>$$Uhttps://doi.org/10.1051/0004-6361/201219133$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.48550/arXiv.1203.0490$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>Ansoldi, S</creatorcontrib><creatorcontrib>U Barres de Almeida</creatorcontrib><creatorcontrib>Barrio, J A</creatorcontrib><creatorcontrib>Bastieri, D</creatorcontrib><creatorcontrib>J Becerra González</creatorcontrib><creatorcontrib>Bednarek, W</creatorcontrib><creatorcontrib>Berger, K</creatorcontrib><creatorcontrib>Biland, A</creatorcontrib><creatorcontrib>Blanch, O</creatorcontrib><creatorcontrib>Tridon, D Borla</creatorcontrib><creatorcontrib>Bretz, T</creatorcontrib><creatorcontrib>Cañellas, A</creatorcontrib><creatorcontrib>Carmona, E</creatorcontrib><creatorcontrib>Carosi, A</creatorcontrib><creatorcontrib>Colin, P</creatorcontrib><creatorcontrib>Cortina, J</creatorcontrib><creatorcontrib>Dazzi, F</creatorcontrib><creatorcontrib>De Angelis, A</creatorcontrib><creatorcontrib>De Caneva, G</creatorcontrib><creatorcontrib>E De Cea del Pozo</creatorcontrib><creatorcontrib>De Lotto, B</creatorcontrib><creatorcontrib>A Diago Ortega</creatorcontrib><creatorcontrib>Doert, M</creatorcontrib><creatorcontrib>Domínguez, A</creatorcontrib><creatorcontrib>D Dominis Prester</creatorcontrib><creatorcontrib>Dorner, D</creatorcontrib><creatorcontrib>Doro, M</creatorcontrib><creatorcontrib>Ferenc, D</creatorcontrib><creatorcontrib>Font, L</creatorcontrib><creatorcontrib>Fruck, C</creatorcontrib><creatorcontrib>García López, R J</creatorcontrib><creatorcontrib>Garczarczyk, M</creatorcontrib><creatorcontrib>D Garrido Terrats</creatorcontrib><creatorcontrib>Hadasch, D</creatorcontrib><creatorcontrib>Häfner, D</creatorcontrib><creatorcontrib>Herrero, A</creatorcontrib><creatorcontrib>Hose, J</creatorcontrib><creatorcontrib>Hrupec, D</creatorcontrib><creatorcontrib>Huber, B</creatorcontrib><creatorcontrib>Kellermann, H</creatorcontrib><creatorcontrib>Krähenbühl, T</creatorcontrib><creatorcontrib>Krause, J</creatorcontrib><creatorcontrib>La Barbera, A</creatorcontrib><creatorcontrib>Lelas, D</creatorcontrib><creatorcontrib>Leonardo, E</creatorcontrib><creatorcontrib>Lindfors, E</creatorcontrib><creatorcontrib>Lombardi, S</creatorcontrib><creatorcontrib>López-Coto, R</creatorcontrib><creatorcontrib>López-Oramas, A</creatorcontrib><creatorcontrib>Lorenz, E</creatorcontrib><creatorcontrib>Makariev, M</creatorcontrib><creatorcontrib>Maneva, G</creatorcontrib><creatorcontrib>Mannheim, K</creatorcontrib><creatorcontrib>Martínez, M</creatorcontrib><creatorcontrib>Meucci, M</creatorcontrib><creatorcontrib>Mirzoyan, R</creatorcontrib><creatorcontrib>Moldón, J</creatorcontrib><creatorcontrib>Niedzwiecki, A</creatorcontrib><creatorcontrib>Nilsson, K</creatorcontrib><creatorcontrib>Nowak, N</creatorcontrib><creatorcontrib>Paneque, D</creatorcontrib><creatorcontrib>Paoletti, R</creatorcontrib><creatorcontrib>Pardo, S</creatorcontrib><creatorcontrib>Paredes, J M</creatorcontrib><creatorcontrib>Persic, M</creatorcontrib><creatorcontrib>Pilia, M</creatorcontrib><creatorcontrib>Pochon, J</creatorcontrib><creatorcontrib>Prada, F</creatorcontrib><creatorcontrib>Prada Moroni, P G</creatorcontrib><creatorcontrib>Prandini, E</creatorcontrib><creatorcontrib>Puljak, I</creatorcontrib><creatorcontrib>Reichardt, I</creatorcontrib><creatorcontrib>Ribó, M</creatorcontrib><creatorcontrib>Saggion, A</creatorcontrib><creatorcontrib>Saito, K</creatorcontrib><creatorcontrib>Saito, T Y</creatorcontrib><creatorcontrib>Satalecka, K</creatorcontrib><creatorcontrib>Scalzotto, V</creatorcontrib><creatorcontrib>Scapin, V</creatorcontrib><creatorcontrib>Shore, S N</creatorcontrib><creatorcontrib>Sitarek, J</creatorcontrib><creatorcontrib>Spiro, S</creatorcontrib><creatorcontrib>Steinke, B</creatorcontrib><creatorcontrib>Strah, N</creatorcontrib><creatorcontrib>Sun, S</creatorcontrib><creatorcontrib>Takalo, L</creatorcontrib><creatorcontrib>Takami, H</creatorcontrib><creatorcontrib>Tavecchio, F</creatorcontrib><creatorcontrib>Temnikov, P</creatorcontrib><creatorcontrib>Tescaro, D</creatorcontrib><creatorcontrib>Tibolla, O</creatorcontrib><creatorcontrib>Torres, D F</creatorcontrib><creatorcontrib>Treves, A</creatorcontrib><creatorcontrib>Uellenbeck, M</creatorcontrib><creatorcontrib>Wagner, R M</creatorcontrib><creatorcontrib>Weitzel, Q</creatorcontrib><creatorcontrib>Zabalza, V</creatorcontrib><creatorcontrib>Zanin, R</creatorcontrib><creatorcontrib>Larsson, S</creatorcontrib><creatorcontrib>Lähteenmäki, A</creatorcontrib><title>Discovery of VHE gamma-rays from the blazar 1ES 1215+303 with the MAGIC Telescopes and simultaneous multi-wavelength observations</title><title>arXiv.org</title><description>Context. We present the discovery of very high energy (VHE, E > 100GeV) gamma-ray emission from the BL Lac object 1ES 1215+303 by the MAGIC telescopes and simultaneous multi-wavelength data in a broad energy range from radio to gamma-rays. Aims. We study the VHE gamma-ray emission from 1ES 1215+303 and its relation to the emissions in other wavelengths. Methods. Triggered by an optical outburst, MAGIC observed the source in January-February 2011 for 20.3 hrs. The target was monitored in the optical R-band by the KVA telescope that also performed optical polarization measurements. We triggered target of opportunity observations with the Swift satellite and obtained simultaneous and quasi-simultaneous data from the Fermi Large Area Telescope and from the Mets\"ahovi radio telescope. We also present the analysis of older MAGIC data taken in 2010. Results. The MAGIC observations of 1ES 1215+303 carried out in January-February 2011 resulted in the first detection of the source at VHE with a statistical significance of 9.4 sigma. Simultaneously, the source was observed in a high optical and X-ray state. In 2010 the source was observed in a lower state in optical, X-ray, and VHE, while the GeV gamma-ray flux and the radio flux were comparable in 2010 and 2011. The spectral energy distribution obtained with the 2011 data can be modeled with a simple one zone SSC model, but it requires extreme values for the Doppler factor or the electron energy distribution.</description><subject>BL Lacertae objects</subject><subject>Electron energy distribution</subject><subject>Emission analysis</subject><subject>Extreme values</subject><subject>Gamma rays</subject><subject>Optical polarization</subject><subject>Physics - High Energy Astrophysical Phenomena</subject><subject>Radio telescopes</subject><subject>Spectral energy distribution</subject><subject>Telescopes</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GOX</sourceid><recordid>eNotkM1PwkAUxDcmJhLk7sls4tEUd_f1Y3skiGKC8SDx2rwtWyhpu7jbFvDmf-4Cnt4k7zeTyRByx9k4lFHEntAeyn7MBYMxC1N2RQYCgAcyFOKGjJzbMsZEnIgoggH5fS5dbnptj9QU9Gs-o2usawwsHh0trKlpu9FUVfiDlvLZJ-WCR4_AgO7LdnN-vk9e36Z0qSvtk3baUWxW1JV1V7XYaNM5epJlsMfeM83a24xy2vbYlqZxt-S6wMrp0f8dkuXLbDmdB4sPnztZBBjxOCgSZByU1jLWeRz7-gqLHDQoliqVSCl5WCihU5kzqRASb0hzjiuAUIZ5CkNyf4k9z5PtbFmjPWanmbLTTB54uAA7a7477dpsazrb-EqZYDKOmASI4Q-ePmqs</recordid><startdate>20120717</startdate><enddate>20120717</enddate><creator>Ansoldi, S</creator><creator>U Barres de Almeida</creator><creator>Barrio, J A</creator><creator>Bastieri, D</creator><creator>J Becerra 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arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>GOX</scope></search><sort><creationdate>20120717</creationdate><title>Discovery of VHE gamma-rays from the blazar 1ES 1215+303 with the MAGIC Telescopes and simultaneous multi-wavelength observations</title><author>Ansoldi, S ; U Barres de Almeida ; Barrio, J A ; Bastieri, D ; J Becerra González ; Bednarek, W ; Berger, K ; Biland, A ; Blanch, O ; Tridon, D Borla ; Bretz, T ; Cañellas, A ; Carmona, E ; Carosi, A ; Colin, P ; Cortina, J ; Dazzi, F ; De Angelis, A ; De Caneva, G ; E De Cea del Pozo ; De Lotto, B ; A Diago Ortega ; Doert, M ; Domínguez, A ; D Dominis Prester ; Dorner, D ; Doro, M ; Ferenc, D ; Font, L ; Fruck, C ; García López, R J ; Garczarczyk, M ; D Garrido Terrats ; Hadasch, D ; Häfner, D ; Herrero, A ; Hose, J ; Hrupec, D ; Huber, B ; Kellermann, H ; Krähenbühl, T ; Krause, J ; La Barbera, A ; Lelas, D ; Leonardo, E ; Lindfors, E ; Lombardi, S ; López-Coto, R ; López-Oramas, A ; Lorenz, E ; Makariev, M ; Maneva, G ; Mannheim, K ; Martínez, M ; Meucci, M ; Mirzoyan, R ; Moldón, J ; Niedzwiecki, A ; Nilsson, K ; Nowak, N ; Paneque, D ; Paoletti, R ; Pardo, S ; Paredes, J M ; Persic, M ; Pilia, M ; Pochon, J ; Prada, F ; Prada Moroni, P G ; Prandini, E ; Puljak, I ; Reichardt, I ; Ribó, M ; Saggion, A ; Saito, K ; Saito, T Y ; Satalecka, K ; Scalzotto, V ; Scapin, V ; Shore, S N ; Sitarek, J ; Spiro, S ; Steinke, B ; Strah, N ; Sun, S ; Takalo, L ; Takami, H ; Tavecchio, F ; Temnikov, P ; Tescaro, D ; Tibolla, O ; Torres, D F ; Treves, A ; Uellenbeck, M ; Wagner, R M ; Weitzel, Q ; Zabalza, V ; Zanin, R ; Larsson, S ; Lähteenmäki, A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a516-f7a013bee86ec66672bafc3e3b09bb788814fb2e98c08ba37f7a9c1ad33484c93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>BL Lacertae objects</topic><topic>Electron energy distribution</topic><topic>Emission analysis</topic><topic>Extreme values</topic><topic>Gamma rays</topic><topic>Optical polarization</topic><topic>Physics - High Energy Astrophysical Phenomena</topic><topic>Radio telescopes</topic><topic>Spectral energy distribution</topic><topic>Telescopes</topic><toplevel>online_resources</toplevel><creatorcontrib>Ansoldi, S</creatorcontrib><creatorcontrib>U Barres de Almeida</creatorcontrib><creatorcontrib>Barrio, J A</creatorcontrib><creatorcontrib>Bastieri, D</creatorcontrib><creatorcontrib>J Becerra González</creatorcontrib><creatorcontrib>Bednarek, W</creatorcontrib><creatorcontrib>Berger, K</creatorcontrib><creatorcontrib>Biland, A</creatorcontrib><creatorcontrib>Blanch, O</creatorcontrib><creatorcontrib>Tridon, D Borla</creatorcontrib><creatorcontrib>Bretz, T</creatorcontrib><creatorcontrib>Cañellas, A</creatorcontrib><creatorcontrib>Carmona, E</creatorcontrib><creatorcontrib>Carosi, A</creatorcontrib><creatorcontrib>Colin, P</creatorcontrib><creatorcontrib>Cortina, J</creatorcontrib><creatorcontrib>Dazzi, F</creatorcontrib><creatorcontrib>De Angelis, A</creatorcontrib><creatorcontrib>De Caneva, G</creatorcontrib><creatorcontrib>E De Cea del Pozo</creatorcontrib><creatorcontrib>De Lotto, B</creatorcontrib><creatorcontrib>A Diago Ortega</creatorcontrib><creatorcontrib>Doert, M</creatorcontrib><creatorcontrib>Domínguez, A</creatorcontrib><creatorcontrib>D Dominis Prester</creatorcontrib><creatorcontrib>Dorner, D</creatorcontrib><creatorcontrib>Doro, M</creatorcontrib><creatorcontrib>Ferenc, D</creatorcontrib><creatorcontrib>Font, L</creatorcontrib><creatorcontrib>Fruck, C</creatorcontrib><creatorcontrib>García López, R J</creatorcontrib><creatorcontrib>Garczarczyk, M</creatorcontrib><creatorcontrib>D Garrido Terrats</creatorcontrib><creatorcontrib>Hadasch, D</creatorcontrib><creatorcontrib>Häfner, D</creatorcontrib><creatorcontrib>Herrero, A</creatorcontrib><creatorcontrib>Hose, J</creatorcontrib><creatorcontrib>Hrupec, D</creatorcontrib><creatorcontrib>Huber, B</creatorcontrib><creatorcontrib>Kellermann, H</creatorcontrib><creatorcontrib>Krähenbühl, T</creatorcontrib><creatorcontrib>Krause, J</creatorcontrib><creatorcontrib>La Barbera, A</creatorcontrib><creatorcontrib>Lelas, D</creatorcontrib><creatorcontrib>Leonardo, E</creatorcontrib><creatorcontrib>Lindfors, E</creatorcontrib><creatorcontrib>Lombardi, S</creatorcontrib><creatorcontrib>López-Coto, R</creatorcontrib><creatorcontrib>López-Oramas, A</creatorcontrib><creatorcontrib>Lorenz, E</creatorcontrib><creatorcontrib>Makariev, M</creatorcontrib><creatorcontrib>Maneva, 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K</creatorcontrib><creatorcontrib>Saito, T Y</creatorcontrib><creatorcontrib>Satalecka, K</creatorcontrib><creatorcontrib>Scalzotto, V</creatorcontrib><creatorcontrib>Scapin, V</creatorcontrib><creatorcontrib>Shore, S N</creatorcontrib><creatorcontrib>Sitarek, J</creatorcontrib><creatorcontrib>Spiro, S</creatorcontrib><creatorcontrib>Steinke, B</creatorcontrib><creatorcontrib>Strah, N</creatorcontrib><creatorcontrib>Sun, S</creatorcontrib><creatorcontrib>Takalo, L</creatorcontrib><creatorcontrib>Takami, H</creatorcontrib><creatorcontrib>Tavecchio, F</creatorcontrib><creatorcontrib>Temnikov, P</creatorcontrib><creatorcontrib>Tescaro, D</creatorcontrib><creatorcontrib>Tibolla, O</creatorcontrib><creatorcontrib>Torres, D F</creatorcontrib><creatorcontrib>Treves, A</creatorcontrib><creatorcontrib>Uellenbeck, M</creatorcontrib><creatorcontrib>Wagner, R M</creatorcontrib><creatorcontrib>Weitzel, Q</creatorcontrib><creatorcontrib>Zabalza, V</creatorcontrib><creatorcontrib>Zanin, R</creatorcontrib><creatorcontrib>Larsson, S</creatorcontrib><creatorcontrib>Lähteenmäki, A</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>arXiv.org</collection><jtitle>arXiv.org</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ansoldi, S</au><au>U Barres de Almeida</au><au>Barrio, J A</au><au>Bastieri, D</au><au>J Becerra González</au><au>Bednarek, W</au><au>Berger, K</au><au>Biland, A</au><au>Blanch, O</au><au>Tridon, D Borla</au><au>Bretz, T</au><au>Cañellas, A</au><au>Carmona, E</au><au>Carosi, A</au><au>Colin, P</au><au>Cortina, J</au><au>Dazzi, F</au><au>De Angelis, A</au><au>De Caneva, G</au><au>E De Cea del Pozo</au><au>De Lotto, B</au><au>A Diago Ortega</au><au>Doert, M</au><au>Domínguez, A</au><au>D Dominis Prester</au><au>Dorner, D</au><au>Doro, M</au><au>Ferenc, D</au><au>Font, L</au><au>Fruck, C</au><au>García López, R J</au><au>Garczarczyk, M</au><au>D Garrido Terrats</au><au>Hadasch, D</au><au>Häfner, D</au><au>Herrero, A</au><au>Hose, J</au><au>Hrupec, D</au><au>Huber, B</au><au>Kellermann, H</au><au>Krähenbühl, T</au><au>Krause, J</au><au>La Barbera, A</au><au>Lelas, D</au><au>Leonardo, E</au><au>Lindfors, E</au><au>Lombardi, S</au><au>López-Coto, R</au><au>López-Oramas, A</au><au>Lorenz, E</au><au>Makariev, M</au><au>Maneva, G</au><au>Mannheim, K</au><au>Martínez, M</au><au>Meucci, M</au><au>Mirzoyan, R</au><au>Moldón, J</au><au>Niedzwiecki, A</au><au>Nilsson, K</au><au>Nowak, N</au><au>Paneque, D</au><au>Paoletti, R</au><au>Pardo, S</au><au>Paredes, J M</au><au>Persic, M</au><au>Pilia, M</au><au>Pochon, J</au><au>Prada, F</au><au>Prada Moroni, P G</au><au>Prandini, E</au><au>Puljak, I</au><au>Reichardt, I</au><au>Ribó, M</au><au>Saggion, A</au><au>Saito, K</au><au>Saito, T Y</au><au>Satalecka, K</au><au>Scalzotto, V</au><au>Scapin, V</au><au>Shore, S N</au><au>Sitarek, J</au><au>Spiro, S</au><au>Steinke, B</au><au>Strah, N</au><au>Sun, S</au><au>Takalo, L</au><au>Takami, H</au><au>Tavecchio, F</au><au>Temnikov, P</au><au>Tescaro, D</au><au>Tibolla, O</au><au>Torres, D F</au><au>Treves, A</au><au>Uellenbeck, M</au><au>Wagner, R M</au><au>Weitzel, Q</au><au>Zabalza, V</au><au>Zanin, R</au><au>Larsson, S</au><au>Lähteenmäki, A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Discovery of VHE gamma-rays from the blazar 1ES 1215+303 with the MAGIC Telescopes and simultaneous multi-wavelength observations</atitle><jtitle>arXiv.org</jtitle><date>2012-07-17</date><risdate>2012</risdate><eissn>2331-8422</eissn><abstract>Context. We present the discovery of very high energy (VHE, E > 100GeV) gamma-ray emission from the BL Lac object 1ES 1215+303 by the MAGIC telescopes and simultaneous multi-wavelength data in a broad energy range from radio to gamma-rays. Aims. We study the VHE gamma-ray emission from 1ES 1215+303 and its relation to the emissions in other wavelengths. Methods. Triggered by an optical outburst, MAGIC observed the source in January-February 2011 for 20.3 hrs. The target was monitored in the optical R-band by the KVA telescope that also performed optical polarization measurements. We triggered target of opportunity observations with the Swift satellite and obtained simultaneous and quasi-simultaneous data from the Fermi Large Area Telescope and from the Mets\"ahovi radio telescope. We also present the analysis of older MAGIC data taken in 2010. Results. The MAGIC observations of 1ES 1215+303 carried out in January-February 2011 resulted in the first detection of the source at VHE with a statistical significance of 9.4 sigma. Simultaneously, the source was observed in a high optical and X-ray state. In 2010 the source was observed in a lower state in optical, X-ray, and VHE, while the GeV gamma-ray flux and the radio flux were comparable in 2010 and 2011. The spectral energy distribution obtained with the 2011 data can be modeled with a simple one zone SSC model, but it requires extreme values for the Doppler factor or the electron energy distribution.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.1203.0490</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | EISSN: 2331-8422 |
| ispartof | arXiv.org, 2012-07 |
| issn | 2331-8422 |
| language | eng |
| recordid | cdi_arxiv_primary_1203_0490 |
| source | arXiv.org; Free E- Journals |
| subjects | BL Lacertae objects Electron energy distribution Emission analysis Extreme values Gamma rays Optical polarization Physics - High Energy Astrophysical Phenomena Radio telescopes Spectral energy distribution Telescopes |
| title | Discovery of VHE gamma-rays from the blazar 1ES 1215+303 with the MAGIC Telescopes and simultaneous multi-wavelength observations |
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