2017MNRAS.467.2934L

Query : 2017MNRAS.467.2934L

2017MNRAS.467.2934L - Mon. Not. R. Astron. Soc., 467, 2934-2942 (2017/May-3)

3D modelling of accretion disc in eclipsing binary system V1239 Her.

LUKIN V.V., MALANCHEV K.L., SHAKURA N.I., POSTNOV K.A., CHECHETKIN V.M. and UTROBIN V.P.

Abstract (from CDS):

We present the results of 3D-hydrodynamical simulations of accretion flow in the eclipsing dwarf nova V1239 Her in quiescence. The model includes the optical star filling its Roche lobe, a gas stream emanating from the inner Lagrangian point of the binary system, and the accretion disc structure. A cold hydrogen gas stream is initially emitted towards a point-like gravitational centre. A stationary accretion disc is formed in about 15 orbital periods after the beginning of accretion. The model takes into account partial ionization of hydrogen and uses realistic cooling function for hydrogen. The light curve of the system is calculated as the volume emission of optically thin layers along the line of sight up to the optical depth τ = 2/3 calculated using Planck-averaged opacities. The calculated eclipse light curves show good agreement with observations, with the changing shape of pre-eclipse and post-eclipse light curves being explained entirely due to ∼50 per cent variations in the mass accretion rate through the gas stream.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): hydrodynamics - methods: numerical - stars: individual: V1239 Her - novae, cataclysmic variables - white dwarfs - white dwarfs

Simbad objects: 1

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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* V1239 Her CV* 17 02 13.2462561912 +32 29 54.159948960           M1.5e 60 0

Query : 2017MNRAS.467.2934L

Basic data :
V* V1239 Her -- Cataclysmic Binary
Other object types: otypes_help 		CV* (2020MNRAS), CV? (2013MNRAS), Opt (LAMOST,SDSS), V* (V*), * (Gaia), NIR (2MASS)
ICRS coord. (ep=J2000) : 		17 02 13.2462561912 +32 29 54.159948960 (Optical) [ 0.0721 0.0620 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		17 00 20.6113042404 +32 34 08.976999026 [ 0.0721 0.0620 90 ]
Gal coord. (ep=J2000) : 		054.8638017896898 +36.1081514576865 [ 0.0721 0.0620 90 ]
Proper motions mas/yr : 		20.969 -18.372 [0.096 0.096 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -111 [21] / z(spectroscopic) -0.00037 [0.00007] / cz -110.9 [21.0]
   (Opt) E 2020ApJS..249....3A
Parallaxes (mas): 		3.3064 [0.0806] A 2020yCat.1350....0G
Spectral type: 		M1.5e D 2004AJ....128.1882S
Fluxes (9) :
G 17.793062 [0.019539] C 2020yCat.1350....0G
J 15.632 [0.051] C 2003yCat.2246....0C
H 15.050 [0.064] C 2003yCat.2246....0C
K 14.814 [0.087] C 2003yCat.2246....0C
u (AB) 18.158 [0.013] C 2020ApJS..249....3A
g (AB) 17.906 [0.006] B 2009ApJS..182..543A
r (AB) 17.818 [0.006] B 2009ApJS..182..543A
i (AB) 17.394 [0.006] B 2009ApJS..182..543A
z (AB) 16.998 [0.011] C 2008ApJS..175..297A
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Identifiers (12) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

2MASS J17021325+3229542 SDSS J170213.25+322954.1 SDSS J170213.24+322954.2 V* V1239 Her
LAMOST J170213.26+322953.9 SDSS J170213.26+322954.1 SDSS J170213.25+322954.2 Gaia DR2 1313538545446290688
LAMOST J170213.25+322954.1 SDSS J170213.24+322954.1 TIC 21664200 Gaia DR3 1313538545446290688

References (60 between 1850 and 2026) (Total 60)
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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Collections of Measurements Description of Measurements

Velocities : 2    Distance : 3    Var : 3    Plx : 2    PM : 2    SpT : 1   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : V* V1239 Her

Link by name to the catalogue in VizieR :

2MASS J17021325+3229542 SDSS J170213.25+322954.1 SDSS J170213.26+322954.1 SDSS J170213.24+322954.1 SDSS J170213.24+322954.2
SDSS J170213.25+322954.2 V* V1239 Her Gaia DR2 1313538545446290688 Gaia DR3 1313538545446290688

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