| Download | - View author's version: A detailed observational analysis of V1324 Sco, the most gamma-ray-luminous classical nova to date (PDF, 5.1 MiB)
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| DOI | Resolve DOI: https://doi.org/10.3847/1538-4357/aaa12a |
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| Author | Search for: Finzell, Thomas; Search for: Chomiuk, Laura; Search for: Metzger, Brian D.; Search for: Walter, Frederick M.; Search for: Linford, Justin D.; Search for: Mukai, Koji; Search for: Nelson, Thomas; Search for: Weston, Jennifer H. S.; Search for: Zheng, Yong; Search for: Sokoloski, Jennifer L.; Search for: Mioduszewski, Amy; Search for: Rupen, Michael P.1; Search for: Dong, Subo; Search for: Starrfield, Sumner; Search for: Cheung, C. C.; Search for: Woodward, Charles E.; Search for: Taylor, Gregory B.; Search for: Bohlsen, Terry; Search for: Buil, Christian; Search for: Prieto, Jose; Search for: Wagner, R. Mark; Search for: Bensby, Thomas; Search for: Bond, I. A.; Search for: Sumi, T.; Search for: Bennett, D. P.; Search for: Abe, F.; Search for: Koshimoto, N.; Search for: Suzuki, D.; Search for: Tristram, P. J.; Search for: Christie, Grant W.; Search for: Natusch, Tim; Search for: Mccormick, Jennie; Search for: Yee, Jennifer; Search for: Gould, Andy |
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| Affiliation | - National Research Council Canada. Herzberg Astronomy and Astrophysics
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| Format | Text, Article |
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| Subject | gamma rays: stars; novae, cataclysmic variables; radio continuum: stars; stars: individual V1324 Sco) |
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| Abstract | It has recently been discovered that some, if not all, classical novae emit GeV gamma-rays during outburst, but the mechanisms involved in the production ofgamma-rays are still not well understood. We present here a comprehensive multiwavelength data set—from radio to X-rays—for the most gamma-ray-luminous classical nova to date, V1324 Sco. Using this data set, we show that V1324 Sco is a canonical dusty Fe ii-type nova, with a maximum ejecta velocity of 2600 km s−1 and an ejecta mass of a few x 10^-5 M⊙. There is also evidence for complex shock interactions, including a double-peaked radio light curve which shows high brightness temperatures at early times. To explore why V1324 Sco was so gamma-ray luminous, we present a model of the nova ejecta featuring strong internal shocks and find that higher gamma-ray luminosities result from higher ejecta velocities and/or mass-loss rates. Comparison of V1324 Sco with other gamma-ray-detected novae does not show clear signatures of either, and we conclude that a larger sample of similarly well-observed novae is needed to understand the origin and variation of gamma-rays in novae. |
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| Publication date | 2018-01-12 |
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| Publisher | American Astronomical Society |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 23003493 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 9fd3743c-5935-4a21-bd1c-ef6167868b8d |
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| Record created | 2018-07-11 |
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| Record modified | 2020-03-16 |
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