| Téléchargement | - Voir la version de l’auteur : A detailed observational analysis of V1324 Sco, the most gamma-ray-luminous classical nova to date (PDF, 5.1 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.3847/1538-4357/aaa12a |
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| Auteur | Rechercher : Finzell, Thomas; Rechercher : Chomiuk, Laura; Rechercher : Metzger, Brian D.; Rechercher : Walter, Frederick M.; Rechercher : Linford, Justin D.; Rechercher : Mukai, Koji; Rechercher : Nelson, Thomas; Rechercher : Weston, Jennifer H. S.; Rechercher : Zheng, Yong; Rechercher : Sokoloski, Jennifer L.; Rechercher : Mioduszewski, Amy; Rechercher : Rupen, Michael P.1; Rechercher : Dong, Subo; Rechercher : Starrfield, Sumner; Rechercher : Cheung, C. C.; Rechercher : Woodward, Charles E.; Rechercher : Taylor, Gregory B.; Rechercher : Bohlsen, Terry; Rechercher : Buil, Christian; Rechercher : Prieto, Jose; Rechercher : Wagner, R. Mark; Rechercher : Bensby, Thomas; Rechercher : Bond, I. A.; Rechercher : Sumi, T.; Rechercher : Bennett, D. P.; Rechercher : Abe, F.; Rechercher : Koshimoto, N.; Rechercher : Suzuki, D.; Rechercher : Tristram, P. J.; Rechercher : Christie, Grant W.; Rechercher : Natusch, Tim; Rechercher : Mccormick, Jennie; Rechercher : Yee, Jennifer; Rechercher : Gould, Andy |
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| Affiliation | - Conseil national de recherches du Canada. Herzberg en astronomie et en astrophysique
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| Format | Texte, Article |
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| Sujet | gamma rays: stars; novae, cataclysmic variables; radio continuum: stars; stars: individual V1324 Sco) |
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| Résumé | 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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| Date de publication | 2018-01-12 |
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| Maison d’édition | American Astronomical Society |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 23003493 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 9fd3743c-5935-4a21-bd1c-ef6167868b8d |
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| Enregistrement créé | 2018-07-11 |
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| Enregistrement modifié | 2020-03-16 |
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