ANDICAM BVRIJHK light curve of Nova V906 Car Virtual Observatory Resource

Authors
  1. Wee J.
  2. Blagorodnova N.
  3. Penprase B.E.
  4. Facey J.P.
  5. Morioka T.
  6. Corbett H.,Barlow B.N.
  7. Kupfer T.
  8. Law N.M.
  9. Ratzloff J.K.
  10. Howard W.S.
  11. Chavez R.G.,Glazier A.
  12. Soto A.V.
  13. Horiuchi T.
  14. Published by
    CDS
Abstract

We present optical and infrared photometry of the classical nova V906 Car, also known as Nova Car 2018 and ASASSN-18fv, which was discovered by the All-Sky Automated Survey for SuperNovae (ASAS-SN) on 2018 March 16.32 UT (MJD 58193.0). The nova reached its maximum on MJD 58222.56 at Vmax=5.84{+/-}0.09mag, and had decline times of t_2,V_=26.2days and t_3,V_=33.0days. The data from Evryscope shows that the nova had already brightened to g'~13mag five days before discovery, as compared with its quiescent magnitude of g=20.13{+/-}0.03. The extinction toward the nova, as derived from high-resolution spectroscopy, shows an estimate consistent with foreground extinction to the Carina Nebula of A_V_=1.11_-0.39_^+0.54^. The light curve resembles a rare C (cusp) class nova with a steep decline slope of {alpha}=-3.94 post-cusp flare. From the light-curve decline rate, we estimate the mass of the white dwarf to be MWD=<0.8M{sun}, consistent with M_WD_=0.71_-0.19_^+0.23^ derived from modeling the accretion disk of the system in quiescence. The donor star is likely a K-M dwarf of 0.23-0.43M_{odot}, which is heated by its companion.

Keywords
  1. novae
  2. infrared-photometry
  3. visible-astronomy
Bibliographic source Bibcode
2020ApJ...899..162W
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/899/162
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/899/162
Document Object Identifer DOI
doi:10.26093/cds/vizier.18990162

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History

2021-11-09T06:27:07Z
Resource record created
2021-11-09T06:27:07Z
Created
2022-03-14T07:11:01Z
Updated

Contact

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CDS support team
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