2002MNRAS.334..471O

Query : 2002MNRAS.334..471O

2002MNRAS.334..471O - Mon. Not. R. Astron. Soc., 334, 471-480 (2002/August-1)

Time-series spectroscopy of pulsating sdB stars - II. Velocity analysis of PG1605+072.

O'TOOLE S.J., BEDDING T.R., KJELDSEN H., DALL T.H. and STELLO D.

Abstract (from CDS):

We present the analysis of time-resolved spectroscopy of the pulsating subdwarf B (sdB) star PG1605+072. From our main observing run of 16 nights we have detected velocity variations at five frequencies that correspond to those found in photometry. Based on these data, there appears to be change in amplitude of the dominant modes over about a year. However, when we include extra observations to improve the frequency resolution, we find that some of the frequencies are split into two or three. Simulations suggest that the apparent amplitude variation can be at least partially explained by a series of very closely spaced frequencies around the two strongest modes. By combining observations taken over ∼300d we conclude that some of the closely spaced modes are caused by one mode the amplitude of which is varying, however this frequency is still within ∼1µHz of an apparently stable frequency. Because of this kind of complexity and uncertainty we advise caution when trying to identify oscillation modes in this star.

Abstract Copyright: 2002 Blackwell Science Ltd

Journal keyword(s): stars: individual: PG1605+072 - stars: interiors - stars: oscillations - subdwarfs

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 PG 1605+072 HS* 16 08 03.6872637792 +07 04 28.748468964   12.53 12.83 13.18   sdB0.2VIHe3 136 0

Query : 2002MNRAS.334..471O

Basic data :
PG 1605+072 -- Hot Subdwarf
Other object types: otypes_help 		* (GSC,UCAC2,...), HS* (1986ApJS), blu (2019A&A), UV (GALEX,PG), MIR (WISEA,WISE), Opt (LAMOST,SDSS), Pu* (2003AstL), V* (V*), NIR (2MASS)
ICRS coord. (ep=J2000) : 		16 08 03.6872637792 +07 04 28.748468964 (Optical) [ 0.0452 0.0332 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		16 05 37.3028709205 +07 12 24.110391976 [ 0.0452 0.0332 90 ]
Gal coord. (ep=J2000) : 		018.9928178230515 +39.3298330078915 [ 0.0452 0.0332 90 ]
Proper motions mas/yr : 		-6.368 -8.111 [0.058 0.043 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 32.7 [~] / z(spectroscopic) 0.000109 [~] / cz 32.70 [~]
   (Opt) D 2018ApJ...868...70L
Parallaxes (mas): 		1.3446 [0.0597] A 2020yCat.1350....0G
Spectral type: 		sdB0.2VIHe3 B 2013A&A...551A..31D
Fluxes (7) :
B 12.53 [0.02] D 2012yCat.1322....0Z
V 12.83 [0.12] D 2012yCat.1322....0Z
R 13.18 [0.11] E 2012yCat.1322....0Z
G 12.805161 [0.003703] C 2020yCat.1350....0G
J 13.406 [0.026] C 2003yCat.2246....0C
H 13.485 [0.021] C 2003yCat.2246....0C
K 13.56 [0.04] C 2003yCat.2246....0C
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Identifiers (16) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

GSC 00379-00781 PG 1605+072 UCAC2 34298783 WISE J160803.68+070428.6
GALEX J160803.8+070428 SDSS J160803.68+070428.7 UCAC4 486-062031 [TFW97] J160803.69+070428.68
LAMOST J160803.68+070428.7 SDSS J160803.68+070428.6 V* V338 Ser Gaia DR3 4450489165598124800
2MASS J16080367+0704287 TIC 291032641 WISEA J160803.68+070428.6 Gaia DR2 4450489165598124800

References (136 between 1850 and 2026) (Total 136)
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 : 3    Distance : 2    Fe/H : 4    Plx : 2    PM : 2    SpT : 6   

   

Observing logs
IUE : 2   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : PG 1605+072

Link by name to the catalogue in VizieR :

GSC 00379-00781 GALEX J160803.8+070428 2MASS J16080367+0704287 PG 1605+072 SDSS J160803.68+070428.7
SDSS J160803.68+070428.6 UCAC2 34298783 UCAC4 486-062031 V* V338 Ser WISEA J160803.68+070428.6
WISE J160803.68+070428.6 Gaia DR3 4450489165598124800 Gaia DR2 4450489165598124800

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