Evidence for Type Ia Supernova Diversity from Ultraviolet Observations with the Hubble Space Telescope
We present ultraviolet (UV) spectroscopy and photometry of four Type Ia supernovae (SNe 2004dt, 2004ef, 2005M, and 2005cf) obtained with the UV prism of the Advanced Camera for Surveys on the Hubble Space Telescope. This dataset provides unique spectral time series down to 2000 Angstrom. Significant...
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| creator | Wang, Xiaofeng Wang, Lifan Filippenko, Alexei V Baron, Eddie Kromer, Markus Dennis, Jack Zhang, Tianmeng Aldering, Greg Antilogus, Pierre Arnett, David Baade, Dietrich Barris, Brian J Benetti, Stefano Bouchet, Patrice Burrows, Adam S Canal, Ramon Cappellaro, Enrico Carlberg, Raymond Elisa di Carlo Challis, Peter Crotts, Arlin Danziger, John I Massimo Della Valle Fink, Michael Foley, Ryan J Fransson, Claes Gal-Yam, Avishay Garnavich, Peter Gerardy, Chris L Goldhaber, Gerson Hamuy, Mario Hillebrandt, Wolfgang Hoeflich, Peter A Holland, Stephen T Holz, Daniel E Hughes, John P Jeffery, David J Jha, Saurabh W Kasen, Dan Khokhlov, Alexei M Kirshner, Robert P Knop, Robert Kozma, Cecilia Krisciunas, Kevin Lee, Brian C Leibundgut, Bruno Lentz, Eric J Leonard, Douglas C Lewin, Walter H G Li, Weidong Livio, Mario Lundqvist, Peter Maoz, Dan Matheson, Thomas Mazzali, Paolo Meikle, Peter Miknaitis, Gajus Milne, Peter Mochnacki, Stefan Nomoto, Ken'Ichi Nugent, Peter E Oran, Elaine Panagia, Nino Perlmutter, Saul Phillips, Mark M Pinto, Philip Poznanski, Dovi Pritchet, Christopher J Reinecke, Martin Riess, Adam Ruiz-Lapuente, Pilar Scalzo, Richard Schlegel, Eric M Schmidt, Brian Siegrist, James Soderberg, Alicia M Sollerman, Jesper Sonneborn, George Spadafora, Anthony Spyromilio, Jason Sramek, Richard A Starrfield, Sumner G Strolger, Louis G Suntzeff, Nicholas B Rollin, Thomas Tonry, John L Tornambe, Amedeo Truran, James W Turatto, Massimo Turner, Michael Van Dyk, Schuyler D Weiler, Kurt Wheeler, J Craig Wood-Vasey, Michael Woosley, Stan Yamaoka, Hitoshi |
| description | We present ultraviolet (UV) spectroscopy and photometry of four Type Ia supernovae (SNe 2004dt, 2004ef, 2005M, and 2005cf) obtained with the UV prism of the Advanced Camera for Surveys on the Hubble Space Telescope. This dataset provides unique spectral time series down to 2000 Angstrom. Significant diversity is seen in the near maximum-light spectra (~ 2000--3500 Angstrom) for this small sample. The corresponding photometric data, together with archival data from Swift Ultraviolet/Optical Telescope observations, provide further evidence of increased dispersion in the UV emission with respect to the optical. The peak luminosities measured in uvw1/F250W are found to correlate with the B-band light-curve shape parameter dm15(B), but with much larger scatter relative to the correlation in the broad-band B band (e.g., ~0.4 mag versus ~0.2 mag for those with 0.8 < dm15 < 1.7 mag). SN 2004dt is found as an outlier of this correlation (at > 3 sigma), being brighter than normal SNe Ia such as SN 2005cf by ~0.9 mag and ~2.0 mag in the uvw1/F250W and uvm2/F220W filters, respectively. We show that different progenitor metallicity or line-expansion velocities alone cannot explain such a large discrepancy. Viewing-angle effects, such as due to an asymmetric explosion, may have a significant influence on the flux emitted in the UV region. Detailed modeling is needed to disentangle and quantify the above effects. |
| doi_str_mv | 10.48550/arxiv.1110.5809 |
| format | Article |
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This dataset provides unique spectral time series down to 2000 Angstrom. Significant diversity is seen in the near maximum-light spectra (~ 2000--3500 Angstrom) for this small sample. The corresponding photometric data, together with archival data from Swift Ultraviolet/Optical Telescope observations, provide further evidence of increased dispersion in the UV emission with respect to the optical. The peak luminosities measured in uvw1/F250W are found to correlate with the B-band light-curve shape parameter dm15(B), but with much larger scatter relative to the correlation in the broad-band B band (e.g., ~0.4 mag versus ~0.2 mag for those with 0.8 < dm15 < 1.7 mag). SN 2004dt is found as an outlier of this correlation (at > 3 sigma), being brighter than normal SNe Ia such as SN 2005cf by ~0.9 mag and ~2.0 mag in the uvw1/F250W and uvm2/F220W filters, respectively. We show that different progenitor metallicity or line-expansion velocities alone cannot explain such a large discrepancy. Viewing-angle effects, such as due to an asymmetric explosion, may have a significant influence on the flux emitted in the UV region. Detailed modeling is needed to disentangle and quantify the above effects.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.1110.5809</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Hubble Space Telescope ; Metallicity ; Outliers (statistics) ; Photometry ; Physics - Cosmology and Nongalactic Astrophysics ; Physics - High Energy Astrophysical Phenomena ; Space telescopes ; Spectrum analysis ; Supernovae</subject><ispartof>arXiv.org, 2012-02</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>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,776,780,881,27904</link.rule.ids><backlink>$$Uhttps://doi.org/10.48550/arXiv.1110.5809$$DView paper in arXiv$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.1088/0004-637X/749/2/126$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink></links><search><creatorcontrib>Wang, Xiaofeng</creatorcontrib><creatorcontrib>Wang, Lifan</creatorcontrib><creatorcontrib>Filippenko, Alexei V</creatorcontrib><creatorcontrib>Baron, Eddie</creatorcontrib><creatorcontrib>Kromer, 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J</creatorcontrib><creatorcontrib>Fransson, Claes</creatorcontrib><creatorcontrib>Gal-Yam, Avishay</creatorcontrib><creatorcontrib>Garnavich, Peter</creatorcontrib><creatorcontrib>Gerardy, Chris L</creatorcontrib><creatorcontrib>Goldhaber, Gerson</creatorcontrib><creatorcontrib>Hamuy, Mario</creatorcontrib><creatorcontrib>Hillebrandt, Wolfgang</creatorcontrib><creatorcontrib>Hoeflich, Peter A</creatorcontrib><creatorcontrib>Holland, Stephen T</creatorcontrib><creatorcontrib>Holz, Daniel E</creatorcontrib><creatorcontrib>Hughes, John P</creatorcontrib><creatorcontrib>Jeffery, David J</creatorcontrib><creatorcontrib>Jha, Saurabh W</creatorcontrib><creatorcontrib>Kasen, Dan</creatorcontrib><creatorcontrib>Khokhlov, Alexei M</creatorcontrib><creatorcontrib>Kirshner, Robert P</creatorcontrib><creatorcontrib>Knop, Robert</creatorcontrib><creatorcontrib>Kozma, Cecilia</creatorcontrib><creatorcontrib>Krisciunas, Kevin</creatorcontrib><creatorcontrib>Lee, Brian C</creatorcontrib><creatorcontrib>Leibundgut, Bruno</creatorcontrib><creatorcontrib>Lentz, Eric J</creatorcontrib><creatorcontrib>Leonard, Douglas C</creatorcontrib><creatorcontrib>Lewin, Walter H G</creatorcontrib><creatorcontrib>Li, Weidong</creatorcontrib><creatorcontrib>Livio, Mario</creatorcontrib><creatorcontrib>Lundqvist, Peter</creatorcontrib><creatorcontrib>Maoz, Dan</creatorcontrib><creatorcontrib>Matheson, Thomas</creatorcontrib><creatorcontrib>Mazzali, Paolo</creatorcontrib><creatorcontrib>Meikle, Peter</creatorcontrib><creatorcontrib>Miknaitis, Gajus</creatorcontrib><creatorcontrib>Milne, Peter</creatorcontrib><creatorcontrib>Mochnacki, Stefan</creatorcontrib><creatorcontrib>Nomoto, Ken'Ichi</creatorcontrib><creatorcontrib>Nugent, Peter E</creatorcontrib><creatorcontrib>Oran, Elaine</creatorcontrib><creatorcontrib>Panagia, Nino</creatorcontrib><creatorcontrib>Perlmutter, Saul</creatorcontrib><creatorcontrib>Phillips, Mark M</creatorcontrib><creatorcontrib>Pinto, Philip</creatorcontrib><creatorcontrib>Poznanski, Dovi</creatorcontrib><creatorcontrib>Pritchet, Christopher J</creatorcontrib><creatorcontrib>Reinecke, Martin</creatorcontrib><creatorcontrib>Riess, Adam</creatorcontrib><creatorcontrib>Ruiz-Lapuente, Pilar</creatorcontrib><creatorcontrib>Scalzo, Richard</creatorcontrib><creatorcontrib>Schlegel, Eric M</creatorcontrib><creatorcontrib>Schmidt, Brian</creatorcontrib><creatorcontrib>Siegrist, James</creatorcontrib><creatorcontrib>Soderberg, Alicia M</creatorcontrib><creatorcontrib>Sollerman, Jesper</creatorcontrib><creatorcontrib>Sonneborn, George</creatorcontrib><creatorcontrib>Spadafora, Anthony</creatorcontrib><creatorcontrib>Spyromilio, Jason</creatorcontrib><creatorcontrib>Sramek, Richard A</creatorcontrib><creatorcontrib>Starrfield, Sumner G</creatorcontrib><creatorcontrib>Strolger, Louis G</creatorcontrib><creatorcontrib>Suntzeff, Nicholas B</creatorcontrib><creatorcontrib>Rollin, Thomas</creatorcontrib><creatorcontrib>Tonry, John L</creatorcontrib><creatorcontrib>Tornambe, Amedeo</creatorcontrib><creatorcontrib>Truran, James W</creatorcontrib><creatorcontrib>Turatto, Massimo</creatorcontrib><creatorcontrib>Turner, Michael</creatorcontrib><creatorcontrib>Van Dyk, Schuyler D</creatorcontrib><creatorcontrib>Weiler, Kurt</creatorcontrib><creatorcontrib>Wheeler, J Craig</creatorcontrib><creatorcontrib>Wood-Vasey, Michael</creatorcontrib><creatorcontrib>Woosley, Stan</creatorcontrib><creatorcontrib>Yamaoka, Hitoshi</creatorcontrib><title>Evidence for Type Ia Supernova Diversity from Ultraviolet Observations with the Hubble Space Telescope</title><title>arXiv.org</title><description>We present ultraviolet (UV) spectroscopy and photometry of four Type Ia supernovae (SNe 2004dt, 2004ef, 2005M, and 2005cf) obtained with the UV prism of the Advanced Camera for Surveys on the Hubble Space Telescope. This dataset provides unique spectral time series down to 2000 Angstrom. Significant diversity is seen in the near maximum-light spectra (~ 2000--3500 Angstrom) for this small sample. The corresponding photometric data, together with archival data from Swift Ultraviolet/Optical Telescope observations, provide further evidence of increased dispersion in the UV emission with respect to the optical. The peak luminosities measured in uvw1/F250W are found to correlate with the B-band light-curve shape parameter dm15(B), but with much larger scatter relative to the correlation in the broad-band B band (e.g., ~0.4 mag versus ~0.2 mag for those with 0.8 < dm15 < 1.7 mag). SN 2004dt is found as an outlier of this correlation (at > 3 sigma), being brighter than normal SNe Ia such as SN 2005cf by ~0.9 mag and ~2.0 mag in the uvw1/F250W and uvm2/F220W filters, respectively. We show that different progenitor metallicity or line-expansion velocities alone cannot explain such a large discrepancy. Viewing-angle effects, such as due to an asymmetric explosion, may have a significant influence on the flux emitted in the UV region. Detailed modeling is needed to disentangle and quantify the above effects.</description><subject>Hubble Space Telescope</subject><subject>Metallicity</subject><subject>Outliers (statistics)</subject><subject>Photometry</subject><subject>Physics - Cosmology and Nongalactic Astrophysics</subject><subject>Physics - High Energy Astrophysical Phenomena</subject><subject>Space telescopes</subject><subject>Spectrum analysis</subject><subject>Supernovae</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><sourceid>GOX</sourceid><recordid>eNotkM9rwjAcxcNgMHHedxqBnevys6bH4dwUBA9255Kk32KkNl3SdvO_X9WdHjwejw8fhJ4omQslJXnV4dcNc0rHQiqS3aEJ45wmSjD2gGYxHgkhLF0wKfkEVavBldBYwJUPOD-3gDca7_sWQuMHjd_dACG67oyr4E_4q-6CHpyvocM7EyEMunO-ifjHdQfcHQCve2NqwPtWj5851BCtb-ER3Ve6jjD7zynKP1b5cp1sd5-b5ds20ZKmSakoZ8TaBQjFlVFWUjOisxHYmNJqmnFiMiHShSg5KJVmMhUciJWCgCacT9Hz7fbqoGiDO-lwLi4uiouLcfByG7TBf_cQu-Lo-9CMSAUjijGSkTTlf-tvYVo</recordid><startdate>20120206</startdate><enddate>20120206</enddate><creator>Wang, Xiaofeng</creator><creator>Wang, Lifan</creator><creator>Filippenko, Alexei V</creator><creator>Baron, Eddie</creator><creator>Kromer, Markus</creator><creator>Dennis, Jack</creator><creator>Zhang, Tianmeng</creator><creator>Aldering, Greg</creator><creator>Antilogus, Pierre</creator><creator>Arnett, David</creator><creator>Baade, Dietrich</creator><creator>Barris, Brian J</creator><creator>Benetti, Stefano</creator><creator>Bouchet, Patrice</creator><creator>Burrows, Adam S</creator><creator>Canal, Ramon</creator><creator>Cappellaro, Enrico</creator><creator>Carlberg, Raymond</creator><creator>Elisa di Carlo</creator><creator>Challis, Peter</creator><creator>Crotts, Arlin</creator><creator>Danziger, John I</creator><creator>Massimo Della Valle</creator><creator>Fink, Michael</creator><creator>Foley, Ryan J</creator><creator>Fransson, Claes</creator><creator>Gal-Yam, Avishay</creator><creator>Garnavich, Peter</creator><creator>Gerardy, Chris L</creator><creator>Goldhaber, Gerson</creator><creator>Hamuy, Mario</creator><creator>Hillebrandt, Wolfgang</creator><creator>Hoeflich, Peter A</creator><creator>Holland, Stephen T</creator><creator>Holz, Daniel E</creator><creator>Hughes, John P</creator><creator>Jeffery, David J</creator><creator>Jha, Saurabh W</creator><creator>Kasen, Dan</creator><creator>Khokhlov, Alexei M</creator><creator>Kirshner, Robert P</creator><creator>Knop, Robert</creator><creator>Kozma, Cecilia</creator><creator>Krisciunas, Kevin</creator><creator>Lee, Brian C</creator><creator>Leibundgut, Bruno</creator><creator>Lentz, Eric J</creator><creator>Leonard, Douglas C</creator><creator>Lewin, Walter H G</creator><creator>Li, Weidong</creator><creator>Livio, Mario</creator><creator>Lundqvist, Peter</creator><creator>Maoz, Dan</creator><creator>Matheson, Thomas</creator><creator>Mazzali, Paolo</creator><creator>Meikle, Peter</creator><creator>Miknaitis, Gajus</creator><creator>Milne, Peter</creator><creator>Mochnacki, Stefan</creator><creator>Nomoto, Ken'Ichi</creator><creator>Nugent, Peter E</creator><creator>Oran, Elaine</creator><creator>Panagia, Nino</creator><creator>Perlmutter, Saul</creator><creator>Phillips, Mark M</creator><creator>Pinto, Philip</creator><creator>Poznanski, Dovi</creator><creator>Pritchet, Christopher 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Hitoshi</creator><general>Cornell University Library, 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>20120206</creationdate><title>Evidence for Type Ia Supernova Diversity from Ultraviolet Observations with the Hubble Space Telescope</title><author>Wang, Xiaofeng ; Wang, Lifan ; Filippenko, Alexei V ; Baron, Eddie ; Kromer, Markus ; Dennis, Jack ; Zhang, Tianmeng ; Aldering, Greg ; Antilogus, Pierre ; Arnett, David ; Baade, Dietrich ; Barris, Brian J ; Benetti, Stefano ; Bouchet, Patrice ; Burrows, Adam S ; Canal, Ramon ; Cappellaro, Enrico ; Carlberg, Raymond ; Elisa di Carlo ; Challis, Peter ; Crotts, Arlin ; Danziger, John I ; Massimo Della Valle ; Fink, Michael ; Foley, Ryan J ; Fransson, Claes ; Gal-Yam, Avishay ; Garnavich, Peter ; Gerardy, Chris L ; Goldhaber, Gerson ; Hamuy, Mario ; Hillebrandt, Wolfgang ; Hoeflich, Peter A ; Holland, Stephen T ; Holz, Daniel E ; Hughes, John P ; Jeffery, David J ; Jha, Saurabh W ; Kasen, Dan ; Khokhlov, Alexei M ; Kirshner, Robert P ; Knop, Robert ; Kozma, Cecilia ; Krisciunas, Kevin ; Lee, Brian C ; Leibundgut, Bruno ; Lentz, Eric J ; Leonard, Douglas C ; Lewin, Walter H G ; Li, Weidong ; Livio, Mario ; Lundqvist, Peter ; Maoz, Dan ; Matheson, Thomas ; Mazzali, Paolo ; Meikle, Peter ; Miknaitis, Gajus ; Milne, Peter ; Mochnacki, Stefan ; Nomoto, Ken'Ichi ; Nugent, Peter E ; Oran, Elaine ; Panagia, Nino ; Perlmutter, Saul ; Phillips, Mark M ; Pinto, Philip ; Poznanski, Dovi ; Pritchet, Christopher J ; Reinecke, Martin ; Riess, Adam ; Ruiz-Lapuente, Pilar ; Scalzo, Richard ; Schlegel, Eric M ; Schmidt, Brian ; Siegrist, James ; Soderberg, Alicia M ; Sollerman, Jesper ; Sonneborn, George ; Spadafora, Anthony ; Spyromilio, Jason ; Sramek, Richard A ; Starrfield, Sumner G ; Strolger, Louis G ; Suntzeff, Nicholas B ; Rollin, Thomas ; Tonry, John L ; Tornambe, Amedeo ; Truran, James W ; Turatto, Massimo ; Turner, Michael ; Van Dyk, Schuyler D ; Weiler, Kurt ; Wheeler, J Craig ; Wood-Vasey, Michael ; Woosley, Stan ; Yamaoka, Hitoshi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a516-d81320cc7e4838b8c51b3312000bbdca1930b944674d3e88695643e0c540ea033</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Hubble Space Telescope</topic><topic>Metallicity</topic><topic>Outliers (statistics)</topic><topic>Photometry</topic><topic>Physics - Cosmology and Nongalactic Astrophysics</topic><topic>Physics - High Energy Astrophysical Phenomena</topic><topic>Space telescopes</topic><topic>Spectrum analysis</topic><topic>Supernovae</topic><toplevel>online_resources</toplevel><creatorcontrib>Wang, Xiaofeng</creatorcontrib><creatorcontrib>Wang, Lifan</creatorcontrib><creatorcontrib>Filippenko, Alexei V</creatorcontrib><creatorcontrib>Baron, Eddie</creatorcontrib><creatorcontrib>Kromer, Markus</creatorcontrib><creatorcontrib>Dennis, Jack</creatorcontrib><creatorcontrib>Zhang, Tianmeng</creatorcontrib><creatorcontrib>Aldering, Greg</creatorcontrib><creatorcontrib>Antilogus, Pierre</creatorcontrib><creatorcontrib>Arnett, David</creatorcontrib><creatorcontrib>Baade, Dietrich</creatorcontrib><creatorcontrib>Barris, Brian J</creatorcontrib><creatorcontrib>Benetti, Stefano</creatorcontrib><creatorcontrib>Bouchet, Patrice</creatorcontrib><creatorcontrib>Burrows, Adam S</creatorcontrib><creatorcontrib>Canal, Ramon</creatorcontrib><creatorcontrib>Cappellaro, Enrico</creatorcontrib><creatorcontrib>Carlberg, Raymond</creatorcontrib><creatorcontrib>Elisa di Carlo</creatorcontrib><creatorcontrib>Challis, Peter</creatorcontrib><creatorcontrib>Crotts, Arlin</creatorcontrib><creatorcontrib>Danziger, John I</creatorcontrib><creatorcontrib>Massimo Della Valle</creatorcontrib><creatorcontrib>Fink, Michael</creatorcontrib><creatorcontrib>Foley, Ryan J</creatorcontrib><creatorcontrib>Fransson, Claes</creatorcontrib><creatorcontrib>Gal-Yam, Avishay</creatorcontrib><creatorcontrib>Garnavich, Peter</creatorcontrib><creatorcontrib>Gerardy, Chris L</creatorcontrib><creatorcontrib>Goldhaber, Gerson</creatorcontrib><creatorcontrib>Hamuy, Mario</creatorcontrib><creatorcontrib>Hillebrandt, Wolfgang</creatorcontrib><creatorcontrib>Hoeflich, Peter A</creatorcontrib><creatorcontrib>Holland, Stephen T</creatorcontrib><creatorcontrib>Holz, Daniel E</creatorcontrib><creatorcontrib>Hughes, John P</creatorcontrib><creatorcontrib>Jeffery, David J</creatorcontrib><creatorcontrib>Jha, Saurabh W</creatorcontrib><creatorcontrib>Kasen, Dan</creatorcontrib><creatorcontrib>Khokhlov, Alexei M</creatorcontrib><creatorcontrib>Kirshner, Robert P</creatorcontrib><creatorcontrib>Knop, Robert</creatorcontrib><creatorcontrib>Kozma, Cecilia</creatorcontrib><creatorcontrib>Krisciunas, Kevin</creatorcontrib><creatorcontrib>Lee, Brian C</creatorcontrib><creatorcontrib>Leibundgut, Bruno</creatorcontrib><creatorcontrib>Lentz, Eric J</creatorcontrib><creatorcontrib>Leonard, Douglas C</creatorcontrib><creatorcontrib>Lewin, Walter H G</creatorcontrib><creatorcontrib>Li, Weidong</creatorcontrib><creatorcontrib>Livio, Mario</creatorcontrib><creatorcontrib>Lundqvist, Peter</creatorcontrib><creatorcontrib>Maoz, Dan</creatorcontrib><creatorcontrib>Matheson, Thomas</creatorcontrib><creatorcontrib>Mazzali, Paolo</creatorcontrib><creatorcontrib>Meikle, Peter</creatorcontrib><creatorcontrib>Miknaitis, Gajus</creatorcontrib><creatorcontrib>Milne, Peter</creatorcontrib><creatorcontrib>Mochnacki, Stefan</creatorcontrib><creatorcontrib>Nomoto, Ken'Ichi</creatorcontrib><creatorcontrib>Nugent, Peter E</creatorcontrib><creatorcontrib>Oran, Elaine</creatorcontrib><creatorcontrib>Panagia, Nino</creatorcontrib><creatorcontrib>Perlmutter, Saul</creatorcontrib><creatorcontrib>Phillips, Mark M</creatorcontrib><creatorcontrib>Pinto, Philip</creatorcontrib><creatorcontrib>Poznanski, Dovi</creatorcontrib><creatorcontrib>Pritchet, Christopher J</creatorcontrib><creatorcontrib>Reinecke, Martin</creatorcontrib><creatorcontrib>Riess, Adam</creatorcontrib><creatorcontrib>Ruiz-Lapuente, Pilar</creatorcontrib><creatorcontrib>Scalzo, Richard</creatorcontrib><creatorcontrib>Schlegel, Eric M</creatorcontrib><creatorcontrib>Schmidt, Brian</creatorcontrib><creatorcontrib>Siegrist, James</creatorcontrib><creatorcontrib>Soderberg, Alicia M</creatorcontrib><creatorcontrib>Sollerman, Jesper</creatorcontrib><creatorcontrib>Sonneborn, George</creatorcontrib><creatorcontrib>Spadafora, Anthony</creatorcontrib><creatorcontrib>Spyromilio, Jason</creatorcontrib><creatorcontrib>Sramek, Richard A</creatorcontrib><creatorcontrib>Starrfield, Sumner G</creatorcontrib><creatorcontrib>Strolger, Louis G</creatorcontrib><creatorcontrib>Suntzeff, Nicholas B</creatorcontrib><creatorcontrib>Rollin, Thomas</creatorcontrib><creatorcontrib>Tonry, John L</creatorcontrib><creatorcontrib>Tornambe, Amedeo</creatorcontrib><creatorcontrib>Truran, James W</creatorcontrib><creatorcontrib>Turatto, Massimo</creatorcontrib><creatorcontrib>Turner, Michael</creatorcontrib><creatorcontrib>Van Dyk, Schuyler D</creatorcontrib><creatorcontrib>Weiler, Kurt</creatorcontrib><creatorcontrib>Wheeler, J Craig</creatorcontrib><creatorcontrib>Wood-Vasey, Michael</creatorcontrib><creatorcontrib>Woosley, Stan</creatorcontrib><creatorcontrib>Yamaoka, Hitoshi</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</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>Wang, Xiaofeng</au><au>Wang, Lifan</au><au>Filippenko, Alexei V</au><au>Baron, Eddie</au><au>Kromer, Markus</au><au>Dennis, Jack</au><au>Zhang, Tianmeng</au><au>Aldering, Greg</au><au>Antilogus, Pierre</au><au>Arnett, David</au><au>Baade, Dietrich</au><au>Barris, Brian J</au><au>Benetti, Stefano</au><au>Bouchet, Patrice</au><au>Burrows, Adam S</au><au>Canal, Ramon</au><au>Cappellaro, Enrico</au><au>Carlberg, Raymond</au><au>Elisa di Carlo</au><au>Challis, Peter</au><au>Crotts, Arlin</au><au>Danziger, John I</au><au>Massimo Della Valle</au><au>Fink, Michael</au><au>Foley, Ryan J</au><au>Fransson, Claes</au><au>Gal-Yam, Avishay</au><au>Garnavich, Peter</au><au>Gerardy, Chris L</au><au>Goldhaber, Gerson</au><au>Hamuy, Mario</au><au>Hillebrandt, Wolfgang</au><au>Hoeflich, Peter A</au><au>Holland, Stephen T</au><au>Holz, Daniel E</au><au>Hughes, John P</au><au>Jeffery, David J</au><au>Jha, Saurabh W</au><au>Kasen, Dan</au><au>Khokhlov, Alexei M</au><au>Kirshner, Robert P</au><au>Knop, Robert</au><au>Kozma, Cecilia</au><au>Krisciunas, Kevin</au><au>Lee, Brian C</au><au>Leibundgut, Bruno</au><au>Lentz, Eric J</au><au>Leonard, Douglas C</au><au>Lewin, Walter H G</au><au>Li, Weidong</au><au>Livio, Mario</au><au>Lundqvist, Peter</au><au>Maoz, Dan</au><au>Matheson, Thomas</au><au>Mazzali, Paolo</au><au>Meikle, Peter</au><au>Miknaitis, Gajus</au><au>Milne, Peter</au><au>Mochnacki, Stefan</au><au>Nomoto, Ken'Ichi</au><au>Nugent, Peter E</au><au>Oran, Elaine</au><au>Panagia, Nino</au><au>Perlmutter, Saul</au><au>Phillips, Mark M</au><au>Pinto, Philip</au><au>Poznanski, Dovi</au><au>Pritchet, Christopher J</au><au>Reinecke, Martin</au><au>Riess, Adam</au><au>Ruiz-Lapuente, Pilar</au><au>Scalzo, Richard</au><au>Schlegel, Eric M</au><au>Schmidt, Brian</au><au>Siegrist, James</au><au>Soderberg, Alicia M</au><au>Sollerman, Jesper</au><au>Sonneborn, George</au><au>Spadafora, Anthony</au><au>Spyromilio, Jason</au><au>Sramek, Richard A</au><au>Starrfield, Sumner G</au><au>Strolger, Louis G</au><au>Suntzeff, Nicholas B</au><au>Rollin, Thomas</au><au>Tonry, John L</au><au>Tornambe, Amedeo</au><au>Truran, James W</au><au>Turatto, Massimo</au><au>Turner, Michael</au><au>Van Dyk, Schuyler D</au><au>Weiler, Kurt</au><au>Wheeler, J Craig</au><au>Wood-Vasey, Michael</au><au>Woosley, Stan</au><au>Yamaoka, Hitoshi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evidence for Type Ia Supernova Diversity from Ultraviolet Observations with the Hubble Space Telescope</atitle><jtitle>arXiv.org</jtitle><date>2012-02-06</date><risdate>2012</risdate><eissn>2331-8422</eissn><abstract>We present ultraviolet (UV) spectroscopy and photometry of four Type Ia supernovae (SNe 2004dt, 2004ef, 2005M, and 2005cf) obtained with the UV prism of the Advanced Camera for Surveys on the Hubble Space Telescope. This dataset provides unique spectral time series down to 2000 Angstrom. Significant diversity is seen in the near maximum-light spectra (~ 2000--3500 Angstrom) for this small sample. The corresponding photometric data, together with archival data from Swift Ultraviolet/Optical Telescope observations, provide further evidence of increased dispersion in the UV emission with respect to the optical. The peak luminosities measured in uvw1/F250W are found to correlate with the B-band light-curve shape parameter dm15(B), but with much larger scatter relative to the correlation in the broad-band B band (e.g., ~0.4 mag versus ~0.2 mag for those with 0.8 < dm15 < 1.7 mag). SN 2004dt is found as an outlier of this correlation (at > 3 sigma), being brighter than normal SNe Ia such as SN 2005cf by ~0.9 mag and ~2.0 mag in the uvw1/F250W and uvm2/F220W filters, respectively. We show that different progenitor metallicity or line-expansion velocities alone cannot explain such a large discrepancy. Viewing-angle effects, such as due to an asymmetric explosion, may have a significant influence on the flux emitted in the UV region. Detailed modeling is needed to disentangle and quantify the above effects.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.1110.5809</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | EISSN: 2331-8422 |
| ispartof | arXiv.org, 2012-02 |
| issn | 2331-8422 |
| language | eng |
| recordid | cdi_arxiv_primary_1110_5809 |
| source | arXiv.org; Free E- Journals |
| subjects | Hubble Space Telescope Metallicity Outliers (statistics) Photometry Physics - Cosmology and Nongalactic Astrophysics Physics - High Energy Astrophysical Phenomena Space telescopes Spectrum analysis Supernovae |
| title | Evidence for Type Ia Supernova Diversity from Ultraviolet Observations with the Hubble Space Telescope |
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