2004AJ....128..448B

Query : 2004AJ....128..448B

2004AJ....128..448B - Astron. J., 128, 448-462 (2004/July-0)

A preliminary observational search for circumbinary disks around cataclysmic variables.

BELLE K.E., SANGHI N., HOWELL S.B., HOLBERG J.B. and WILLIAMS P.T.

Abstract (from CDS):

Circumbinary (CB) disks have been proposed as a mechanism to extract orbital angular momentum from cataclysmic variables (CVs) during their evolution. As proposed by Taam & Spruit, these disks extend outward to several astronomical units and should be detected observationally via their infrared flux or by absorption lines in the ultraviolet spectra of the CV. We have made use of archival HST/STIS spectra, as well as our own near-IR imaging, to search for observational evidence of such CB disks in seven CVs. Based on the null result, we place an upper limit on the column density of the disk of NH∼1017/cm2.

Abstract Copyright: ∼

Journal keyword(s): ISM: Clouds - Stars: Novae, Cataclysmic Variables - stars: individual (QU Carinae) - Stars: Individual: Constellation Name: V592 Cassiopeiae - Stars: Individual: Constellation Name: EX Hydrae - Stars: Individual: Constellation Name: DI Lacertae - stars: individual (TZ Persei) - stars: individual (V3885 Sagittarii) - Stars: Individual: Constellation Name: IX Velorum

Simbad objects: 7

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Number of rows : 7
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* V592 Cas CV* 00 20 52.2230598456 +55 42 16.235113356 12.07 12.86 12.79 12.783   OB 109 0
2 V* TZ Per CV* 02 13 50.9628827706 +58 22 52.311997695   13.774 13.473 14.202   ~ 103 0
3 V* IX Vel CV* 08 15 18.9688659456 -49 13 20.671780368 8.64 10.04 10.10 9.84 9.347 sdOBe 253 0
4 V* QU Car CV* 11 05 42.4858973880 -68 37 58.231932240 10.74 11.45 11.54 11.57   A 108 0
5 V* EX Hya CV* 12 52 24.2222471899 -29 14 55.999766523   13.505 13.491 13.549   M5-6V 730 0
6 CD-42 14462 CV* 19 47 40.5290567472 -42 00 26.395115580 9.65 10.362 10.308 10.520   sdB 243 0
7 V* DI Lac No* 22 35 48.4952851704 +52 42 59.641265592   14.89 14.51 14.48   ~ 126 0

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