Multiwavelength obs. of gamma-ray NOVA Sco 2012

DOI

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 of gamma-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 FeII-type nova, with a maximum ejecta velocity of 2600km/s and an ejecta mass of a few x10^-5^M_{sun}_. 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.

Identifier
DOI http://doi.org/10.26093/cds/vizier.18520108
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJ/852/108
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/852/108
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/852/108
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJ/852/108
Provenance
Creator Finzell T.; Chomiuk L.; Metzger B.D.; Walter F.M.; Linford J.D.; Mukai K.,Nelson T.; Weston J.H.S.; Zheng Y.; Sokoloski J.L.; Mioduszewski A.,Rupen M.P.; Dong S.; Starrfield S.; Cheung C.C.; Woodward C.E.; Taylor G.B.,Bohlsen T.; Buil C.; Prieto J.; Wagner R.M.; Bensby T.; Bond I.A.; Sumi T.,Bennett D.P.; Abe F.; Koshimoto N.; Suzuki D.; Tristram P.J.; Christie G.W.,Natusch T.; McCormick J.; Yee J.; Gould A.
Publisher CDS
Publication Year 2018
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Cosmology; Interdisciplinary Astronomy; Interstellar medium; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy