1998AJ....116.1961H

Query : 1998AJ....116.1961H

1998AJ....116.1961H - Astron. J., 116, 1961-1965 (1998/October-0)

Multiyear photometry and a spectroscopic orbital period search for the VY Sculptoris type cataclysmic variable V794 Aquilae.

HONEYCUTT R.K. and ROBERTSON J.W.

Abstract (from CDS):

Continued photometry of the nova-like cataclysmic variable (CV) V794 Aql shows that the unusual repetitive, slow, deep declines that were reported earlier for 1990-1992 have persisted now for over 6 years. The slow declines and rapid rises are shown to have relatively consistent shapes. This continued behavior presents some potential problems for the model of Honeycutt, Cannizzo, & Robertson, in which the ``sawtooth''-shaped light curve was considered to be an accretion disk instability initiated as M{dot} dropped from the nova-like regime. Alternative mechanisms are briefly explored and are argued to also encounter difficulties in accounting for the light curve. A radial velocity study of V794 Aql yields a best period of 0.1533 days (3.68 hr). Periods of 0.1336 and 0.1787 days are considerably less likely but cannot be ruled out from the data at hand. These periods are in the expected range for VY Sculptoris type nova-like CVs.

Abstract Copyright: ∼

Journal keyword(s): Stars: Novae, Cataclysmic Variables - Stars: Individual: Constellation Name: V794 Aquilae

Simbad objects: 1

Full paper

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Number of rows : 1

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* V794 Aql	CV*	20 17 33.9158772576	-03 39 50.960495196						~	105	0

Query : 1998AJ....116.1961H

Basic data :

V* V794 Aql -- Cataclysmic Binary

V* (AN,V*,...), CV* (2017ARep), blu (2019A&A), X (2E,1RXS), HS? (2019A&A), * (Gaia), UV (2012ApJS), NIR (2MASS)

20 17 33.9158772576 -03 39 50.960495196 (Optical) [ 0.0223 0.0172 90 ] A 2020yCat.1350....0G

20 14 56.6496770072 -03 49 11.631138564 [ 0.0223 0.0172 90 ]

039.6978658748783 -20.8004985736778 [ 0.0223 0.0172 90 ]

-40.134 -14.632 [0.025 0.021 90] A 2020yCat.1350....0G

1.5278 [0.0267] A 2020yCat.1350....0G

G 14.825953 [0.034525] C 2020yCat.1350....0G

J 14.188 [0.029] C 2003yCat.2246....0C

H 13.971 [0.038] C 2003yCat.2246....0C

K 13.737 [0.054] C 2003yCat.2246....0C

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`2E 4349`	`2MASS J20173391-0339509`	*`V V794 Aql`**	`Gaia DR2 4222299752184927616`
`AN 499.1936`	`1RXS J201734.6-033952`	`AAVSO 2012-03`
`2E 2014.9-0349`	`TIC 244079967`	`Gaia DR3 4222299752184927616`

References (105 between 1850 and 2026) (Total 105)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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`2E 4349`	`2MASS J20173391-0339509`	`1RXS J201734.6-033952`	*`V V794 Aql`**	`Gaia DR3 4222299752184927616`
`Gaia DR2 4222299752184927616`

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