SIMBAD references

2016ApJ...833..146G - Astrophys. J., 833, 146-146 (2016/December-3)

Spectroscopy from the Hubble Space Telescope Cosmic Origins Spectrograph of the southern nova-like BB Doradus in an intermediate state.

GODON P., SION E.M., GANSICKE B.T., HUBENY I., DE MARTINO D., PALA A.F., RODRIGUEZ-GIL P., SZKODY P. and TOLOZA O.

Abstract (from CDS):

We present a spectral analysis of the spectrum from the Hubble Space Telescope Cosmic Origins Spectrograph (HST/COS) of the southern VY Scl nova-like variable BB Doradus, obtained as part of a Cycle 20 HST/COS survey of accreting white dwarfs (WDs) in cataclysmic variables. BB Dor was observed with COS during an intermediate state with a low mass accretion rate, thereby allowing an estimate of the WD temperature. The results of our spectral analysis show that the WD is a significant far-ultraviolet (FUV) component of the spectrum with a temperature of about 35,000-50,000 K, assuming a WD mass of 0.80 M☉(log(g)=8.4). The disk, with a mass accretion rate of ~10–10 M☉ yr–1, contributes about 1/5 to 1/2 of the FUV flux.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): accretion, accretion disks - binaries: close - novae, cataclysmic variables - stars: individual: BB Doradus - ultraviolet: stars - white dwarfs - white dwarfs

Simbad objects: 13

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