2004A&A...427..593U

Query : 2004A&A...427..593U

2004A&A...427..593U - Astronomy and Astrophysics, volume 427593-605 (2004/11-4)

Interpretation of the variability of the β Cephei star λ Scorpii. II. The line-profile diagnostics.

UYTTERHOEVEN K., TELTING J.H., AERTS C. and WILLEMS B.

Abstract (from CDS):

We present the results of our analysis of a time series of high-resolution spectra of the multiple β Cephei star λ Scorpii. The data set has a total time-span of more than 5000 days and includes an intensive monitoring campaign during 8 consecutive nights. We confirm the presence of a dominant frequency f1=4.679410c/d in the data. We show that the amplitude is variable in time according to the light-time effect in the multiple system. The dominant frequency is identified as a prograde dipole pulsation mode. From modelling of the amplitudes and phases across the profiles we derive pulsational parameters, the inclination angle 70°≤i≤90° and vsini∼125km/s. From a comparison between theoretically calculated forcing eigenfrequencies induced by the close companion and the eigenfrequencies of the observed oscillation mode we find no tidal enhancement or excitation of the pulsation mode of λ Scorpii. We find indications for the presence of additional frequencies with low amplitudes.

Abstract Copyright: ∼

Journal keyword(s): stars: binaries: spectroscopic - stars: oscillations - line: profiles - stars: individual: λ Scorpii

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 * lam Sco bC* 17 33 36.52012 -37 06 13.7648 0.52 1.49 1.63     B2IV+DA7.9 404 0

Query : 2004A&A...427..593U

Basic data :
* lam Sco -- beta Cep Variable
Other object types: otypes_help 		* (*,ALS,...), ** (**,CCDM,...), UV (EUVE,TD1,...), X (1E,1RXS), bC* (2022A&A), WD* (WD), bC? (2020MNRAS), EB* (2020MNRAS), V* (V*), NIR (2MASS), IR (IRAS)
ICRS coord. (ep=J2000) : 		17 33 36.52012 -37 06 13.7648 (Optical) [ 9.47 5.45 90 ] A 2007A&A...474..653V
FK4 coord. (ep=B1950 eq=1950) : 		17 30 12.64040 -37 04 09.6290 [ 9.47 5.45 90 ]
Gal coord. (ep=J2000) : 		351.74436221 -02.21436679 [ 9.47 5.45 90 ]
Proper motions mas/yr : 		-8.53 -30.80 [1.08 0.62 0] A 2007A&A...474..653V
Radial velocity / Redshift / cz : 		V(km/s) -3.00 [2.8] / z(~) -0.000010 [0.000009] / cz -3.00 [2.80]
   C 2006AstL...32..759G
Parallaxes (mas): 		5.71 [0.75] A 2007A&A...474..653V
Spectral type: 		B2IV+DA7.9 C 2013MNRAS.435.2077H
Fluxes (6) :
U 0.52 [~] D 2003AJ....125.2531R
B 1.49 [0.01] D 2000A&A...355L..27H
V 1.63 [0.01] D 2000A&A...355L..27H
J 2.013 [0.342] E 2003yCat.2246....0C
H 2.068 [0.236] D 2003yCat.2246....0C
K 2.114 [0.260] D 2003yCat.2246....0C
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Identifiers (51) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* lam Sco FK5 652 N30 3905 UBV M 22240
* 35 Sco GC 23769 NAME Shaula UBV 14937
** TNG 1 GCRV 10136 PMC 90-93 462 uvby98 100158926
** SEE 334A GEN# +1.00158926 PPM 296488 V* lam Sco
** DUN 218A GSC 07388-01093 ROT 2459 WDS J17336-3706A
ALS 15082 HD 158926 1RXS J173336.7-370604 WDS J17336-3706Aa,Ab
CCDM J17336-3706A HIC 85927 SACS 383 WD 1730-370
CD-37 11673 HIP 85927 SAO 208954 WEB 14501
CPC 18 8791 HR 6527 SKY# 31695 [B10] 4439
CPD-37 7265 IDS 17268-3702 A SRS 30652 [SC95] ZET 456
CSI-37 11673 21 IRAS 17302-3704 TD1 20577 [SC96] Mis 521
1E 1730.2-3704 JP11 2862 TIC 465088681 [SC96] GC 99
EUVE J1733-37.1 2MASS J17333652-3706135 TYC 7388-1093-1

References (404 between 1850 and 2026) (Total 404)
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 : 5    Rot : 6    Plx : 2    PM : 4    SpT : 16   

   

Observing logs
ISO : 3    IUE : 14   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : * lam Sco

Link by name to the catalogue in VizieR :

ALS 15082 CCDM J17336-3706A CD-37 11673 CPD-37 7265 EUVE J1733-37.1
FK5 652 GSC 07388-01093 HD 158926 HIC 85927 HIP 85927
HR 6527 IRAS 17302-3704 2MASS J17333652-3706135 PPM 296488 1RXS J173336.7-370604
SAO 208954 TD1 20577 TYC 7388-1093-1 uvby98 100158926 V* lam Sco
WDS J17336-3706A WDS J17336-3706Aa,Ab WD 1730-370

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