ROSAT observation of the decline of V838 Herculis (NOVA Herculis 1991)

Details ROSAT observation of the decline of V838 Herculis (NOVA Herculis 1991) ROSAT observation of the decline of V838 Herculis (NOVA Herculis 1991)

Jul 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...429..857s&link_type=abstract

The Astrophysical Journal, vol. 429, no. 2, pt. 1, p. 857-862

Astronomy and Astrophysics

Astrophysics

10

Cataclysmic Variables, Eclipses, Hercules Nova, Light Curve, Stellar Spectra, X Ray Imagery, Apertures, Position Sensing, Proportional Counters, Rosat Mission

Scientific paper

A long ROSAT observation of the very fast, very large amplitude nova V838 Her 19 months after outburst reveals a marginal detection of the source at a count rate of 7.8(+/- 2.9) x 10-4 counts/sec, with all of the flux in the energy range of 0.6 to 1.3 keV. A short archive observation at 1 yr past outburst is consistent with this low flux level. These data provide the first real limit of less than a year for the turnoff of the white dwarf remnant envelope in a fast nova.

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