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  • Finzell, ThomasMichigan State University (author)

A Detailed Observational Analysis of V1324 Sco, the Most Gamma-Ray-luminous Classical Nova to Date

  • Article/chapterEnglish2018

Publisher, publication year, extent ...

  • 2018-01-12
  • American Astronomical Society,2018

Numbers

  • LIBRIS-ID:oai:lup.lub.lu.se:f011774c-bb5c-4769-ac49-c9e043554078
  • https://lup.lub.lu.se/record/f011774c-bb5c-4769-ac49-c9e043554078URI
  • https://doi.org/10.3847/1538-4357/aaa12aDOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • 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 × 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.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Chomiuk, LauraMichigan State University (author)
  • Metzger, Brian D.Columbia University (author)
  • Walter, Frederick M.Stony Brook University (author)
  • Linford, Justin D.George Washington University (author)
  • Mukai, KojiNASA Goddard Space Flight Center,University of Maryland, Baltimore (author)
  • Nelson, ThomasUniversity of Minnesota (author)
  • Weston, Jennifer H.S.Green Bank Observatory (author)
  • Zheng, YongColumbia University (author)
  • Sokoloski, Jennifer L.Columbia University (author)
  • Mioduszewski, AmyNational Radio Astronomy Observatory Socorro (author)
  • Rupen, Michael P.Dominion Radio Astrophysical Observatory (author)
  • Dong, SuboPeking University (author)
  • Starrfield, SumnerArizona State University (author)
  • Cheung, C. C.Naval Research Laboratory (author)
  • Woodward, Charles E.University of Minnesota (author)
  • Taylor, Gregory B.University of New Mexico (author)
  • Bohlsen, TerryMirranook Observatory (author)
  • Buil, ChristianCastanet Tolosan Observatory (author)
  • Prieto, JoseMillennium Institute for Astrophysics,Diego Portales University (author)
  • Wagner, R. MarkOhio State University,University of Arizona (author)
  • Bensby, ThomasLund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science(Swepub:lu)astr-tbe (author)
  • Bond, I. A.Massey University (author)
  • Sumi, T.Osaka University (author)
  • Bennett, D. P.NASA Goddard Space Flight Center (author)
  • Abe, F.Nagoya University (author)
  • Koshimoto, N.Osaka University (author)
  • Suzuki, D.Osaka University (author)
  • Tristram, P. J.Mt. John University Observatory (author)
  • Christie, Grant W.Auckland Observatory (author)
  • Natusch, TimAuckland Observatory (author)
  • McCormick, JennieCentre for Backyard Astrophysics (author)
  • Yee, JenniferHarvard–Smithsonian Center for Astrophysics (author)
  • Gould, AndyOhio State University (author)
  • Michigan State UniversityColumbia University (creator_code:org_t)

Related titles

  • In:Astrophysical Journal: American Astronomical Society852:20004-637X1538-4357

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