2004PASP..116..926H


Query : 2004PASP..116..926H

2004PASP..116..926H - Publ. Astron. Soc. Pac., 116, 926-930 (2004/October-0)

Dwarf novae with newly determined parallaxes: model analyses of VY Aquarii, RU Pegasi, and T Leonis.

HAMILTON R.T. and SION E.M.

Abstract (from CDS):

Using newly determined parallaxes for dwarf novae, we have derived outburst accretion rates for VY Aqr, RU Peg, and T Leo, and for T Leo during quiescence. The two short-period dwarf novae, VY Aqr and T Leo, show good agreement with optically thick steady-state accretion disks in outburst, whereas RU Peg shows a significant departure from a steady-state disk. We have determined that the white dwarf in T Leo has Teff=16,000±1000 K, a value consistent with long-term compressional heating when gravitational-wave emission drives mass transfer. The white dwarf in T Leo has a temperature in the same narrow range as other WZ Sge-like dwarf novae.

Abstract Copyright: ∼

Journal keyword(s): stars: dwarf novae - Stars: Novae, Cataclysmic Variables - stars: individual (VY Aquarii) - Stars: Individual: Constellation Name: RU Pegasi - Stars: Individual: Constellation Name: T Leonis

Simbad objects: 9

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Number of rows : 9
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 V* CZ Ori CV* 06 16 43.2247568736 +15 24 11.297210616   12.81 12.81 16.17   OB- 108 0
2 V* SW UMa CV* 08 36 42.7492998204 +53 28 37.976599017           ~ 315 0
3 V* QZ Vir CV* 11 38 26.8241432424 +03 22 07.110298596     15.81     ~ 269 1
4 V* BC UMa CV* 11 52 15.8342499696 +49 14 41.887768632           DC: 112 0
5 V* AL Com CV* 12 32 25.7951754648 +14 20 42.292188276     16.2     ~ 249 0
6 V* EM Cyg CV* 19 38 40.1068970904 +30 30 28.332591012     11.90     ~ 270 0
7 V* WZ Sge CV* 20 07 36.5037622512 +17 42 14.733254952   15.30 15.20 10.817   D 982 0
8 V* VY Aqr CV* 21 12 09.2515505688 -08 49 36.779664432           ~ 229 0
9 V* RU Peg CV* 22 14 02.5505986656 +12 42 11.278107972     12     sdBe+G8IV:n 322 0

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