2008IBVS.5848....1G

Query : 2008IBVS.5848....1G

2008IBVS.5848....1G - IAU Inform. Bull. Var. Stars, 5848, 1 (2008/August-0)

V772 Cas: an intrinsically variable BpSi star in an eclipsing binary?

GANDET T.L.

Abstract (from CDS):

A possible modulation of the Hipparcos light curve of the B8IIIpSi spectroscopic-eclipsing binary V772 Cas is proposed, with a period of possibly 1-2 days. Intrinsic variability, possibly of the alpha2 CVn type, in the primary star is proposed as its source. The first spectroscopic orbit for V772 Cas is presented, and the RVs are used in connection with the Hipparcos photometric data to determine a consistent time of primary minimum. If these results are confirmed, V772 Cas would be only the third chemically peculiar early-type eclipsing binary star that is also intrinsically variable, and only the second to have had its spectroscopic orbit determined. It is hoped that this confirmation may be accomplished during the 2008-2009 observing season.

Abstract Copyright: ∼

Journal keyword(s): eclipsing binary, spectroscopic binary, intrinsic variability, period, orbit, classification, chemically peculiar

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* V772 Cas a2* 01 42 02.9108207472 +61 02 17.656928916   6.647 6.677     B8IIIp(Si) 58 0

Query : 2008IBVS.5848....1G

Basic data :
V* V772 Cas -- alpha2 CVn Variable
Other object types: otypes_help 		* (2019AJ,HD,...), a2* (2003AstL), SB* (2022yCat), V* (V*), UV (TD1), NIR (2MASS)
ICRS coord. (ep=J2000) : 		01 42 02.9108207472 +61 02 17.656928916 (Optical) [ 0.0167 0.0197 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		01 38 38.1830437466 +60 47 10.467101373 [ 0.0167 0.0197 90 ]
Gal coord. (ep=J2000) : 		129.0218595648037 -01.2336708697899 [ 0.0167 0.0197 90 ]
Proper motions mas/yr : 		8.737 -5.204 [0.023 0.023 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -12.00 [7.4] / z(~) -0.000040 [0.000025] / cz -12.00 [7.40]
   D 2007AN....328..889K
Parallaxes (mas): 		2.8094 [0.0309] A 2020yCat.1350....0G
Spectral type: 		B8IIIp(Si) C 1972AJ.....77..750C
Fluxes (6) :
B 6.647 [0.014] D 2000A&A...355L..27H
V 6.677 [0.009] D 2000A&A...355L..27H
G 6.658859 [0.002777] C 2020yCat.1350....0G
J 6.656 [0.023] C 2003yCat.2246....0C
H 6.725 [0.042] C 2003yCat.2246....0C
K 6.727 [0.023] C 2003yCat.2246....0C
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 2 : 356 Display criteria :

Identifiers (27) :
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HD 10260 GSC 04031-02047 SAO 11920 uvby98 100010260
AG+60 189 HIC 7939 SKY# 2548 V* V772 Cas
ALS 16538 HIP 7939 TD1 951 WEB 1695
BD+60 308 HR 481 TIC 444833007 Gaia DR2 509749125548519424
GC 2046 2MASS J01420290+6102176 TYC 4031-2047-1 Gaia DR3 509749125548519424
GCRV 51890 PPM 13177 UBV 1717 Gaia DR1 509749121243186176
GEN# +1.00010260 Renson 2560 UBV M 8344

References (58 between 1850 and 2026) (Total 58)
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 : 7    Distance : 2    Var : 1    Rot : 3    Fe/H : 2    Plx : 5    PM : 4    SpT : 5   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Link by name to the catalogue in VizieR :

HD 10260 AG+60 189 ALS 16538 BD+60 308 GSC 04031-02047
HIC 7939 HIP 7939 HR 481 2MASS J01420290+6102176 PPM 13177
SAO 11920 TD1 951 TYC 4031-2047-1 uvby98 100010260 V* V772 Cas
Gaia DR2 509749125548519424 Gaia DR3 509749125548519424 Gaia DR1 509749121243186176

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