2003A&A...408.1077S

Query : 2003A&A...408.1077S

2003A&A...408.1077S - Astronomy and Astrophysics, volume 4081077-1086 (2003/9-4)

Abundances and radial velocity analysis of BW Vulpeculae.

STANKOV A., ILYIN I. and FRIDLUND C.V.M.

Abstract (from CDS):

We present the results of the analysis of 56 echelle spectra of the β Cephei star BW Vulpeculae. The data were obtained during three nights with the SOFIN spectrograph at the Nordic Optical Telescope and cover a wavelength range from 3650Å to 7340Å. We compare the observed spectrum with a synthetic spectrum calculated from a model atmosphere for this star utilizing the program ATLAS9 by Kurucz. From this, we determine a projected rotational velocity, vsini, of 24km/s. Detailed spectral line identification and an abundance analysis for this star are performed. From these analyses we find that Ne, Si, He, and Ar are over-abundant in BW Vulpeculae, while the abundances for N, S, O, Fe, C, and Al are solar. Finally, a comparison of radial velocity curves from six different layers of BW Vulpeculae's atmosphere is presented, corresponding to the formation depths of different elements. We show that at least six of these layers move independently from each other.

Abstract Copyright: ∼

Journal keyword(s): stars: abundances - stars: individual: BW Vulpeculae - stars: oscillations - stars: variables: Cepheids

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* BW Vul bC* 20 54 22.3947588600 +28 31 19.190976132 5.47 6.40 6.54     B2IIIv 301 0

Query : 2003A&A...408.1077S

Basic data :
V* BW Vul -- beta Cep Variable
Other object types: otypes_help 		* (HD,AG,...), V* (AN,V*,...), MIR (WISEA,WISE), bC* (2020AJ), bC? (2020MNRAS), UV (TD1), NIR (2MASS), IR (IRAS)
ICRS coord. (ep=J2000) : 		20 54 22.3947588600 +28 31 19.190976132 (Optical) [ 0.0326 0.0383 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		20 52 14.9220364122 +28 19 51.824012620 [ 0.0326 0.0383 90 ]
Gal coord. (ep=J2000) : 		072.7534328126560 -10.4803079159338 [ 0.0326 0.0383 90 ]
Proper motions mas/yr : 		0.567 -5.520 [0.050 0.049 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -6.1 [2] / z(~) -0.000020 [0.000007] / cz -6.10 [2.00]
   B 1979IAUS...30...57E
Parallaxes (mas): 		1.1732 [0.0547] A 2020yCat.1350....0G
Spectral type: 		B2IIIv C ~
Fluxes (7) :
U 5.47 [~] D 2003AJ....125.2531R
B 6.40 [~] E ~
V 6.54 [~] E ~
G 6.546799 [0.004265] C 2020yCat.1350....0G
J 6.801 [0.024] C 2003yCat.2246....0C
H 6.942 [0.036] C 2003yCat.2246....0C
K 6.983 [0.020] C 2003yCat.2246....0C
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Identifiers (35) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HD 199140 HGAM 963 ROT 3052 V* BW Vul
AG+28 2353 HIC 103191 SAO 89265 WEB 18741
ALS 14834 HIP 103191 SKY# 39690 WISEA J205422.40+283119.0
AN 226.1937 HR 8007 TD1 27433 WISE J205422.39+283119.1
BD+27 3909 IRAS 20522+2819 TIC 419354107 YZ 28 11893
GC 29171 2MASS J20542238+2831192 TYC 2183-2731-1 AAVSO 2050+28
GCRV 13125 MCW 957 UBV 21418 Gaia DR3 1845911110565337472
GEN# +1.00199140 N30 4627 UBV M 25259 Gaia DR2 1845911110565337472
GSC 02183-02731 PPM 112113 uvby98 100199140

References (301 between 1850 and 2026) (Total 301)
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 : 7    Fe/H : 1    Plx : 4    PM : 7    SpT : 10   

   

Observing logs
IUE : 53   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : V* BW Vul

Link by name to the catalogue in VizieR :

HD 199140 AG+28 2353 ALS 14834 BD+27 3909 GSC 02183-02731
HIC 103191 HIP 103191 HR 8007 IRAS 20522+2819 2MASS J20542238+2831192
PPM 112113 SAO 89265 TD1 27433 TYC 2183-2731-1 uvby98 100199140
V* BW Vul WISEA J205422.40+283119.0 WISE J205422.39+283119.1 Gaia DR3 1845911110565337472 Gaia DR2 1845911110565337472

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