2003MNRAS.340..856O

Query : 2003MNRAS.340..856O

2003MNRAS.340..856O - Mon. Not. R. Astron. Soc., 340, 856-862 (2003/April-2)

Time-series spectroscopy of pulsating sdB stars - III. Line indices of PG 1605+072.

O'TOOLE S.J., JORGENSEN M.S., KJELDSEN H., BEDDING T.R., DALL T.H. and HEBER U.

Abstract (from CDS):

We present the detection and analysis of line index variations in the pulsating sdB star PG 1605+072. We have found a strong dependence of line index amplitude on Balmer line order, with high-order Balmer line amplitudes up to 10 times larger than Hβ. Using a simple model, we have found that the line index may not only be dependent on temperature, as is usually assumed for oscillating stars, but also on surface gravity. This information will provide another set of observables that can be used for mode identification of sdBs.

Abstract Copyright: 2003 RAS

Journal keyword(s): stars: individual: PG 1605+072 - stars: interiors - stars: oscillations - subdwarfs

Simbad objects: 5

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Number of rows : 5
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* BN Cnc dS* 08 40 39.2340192816 +19 13 41.848124700   8.01 7.80     A9V 120 0
2 V* FG Vir dS* 12 14 15.4565381808 -05 42 59.750820036   6.807 6.558     A8/9V 223 0
3 * alf Cir a2* 14 42 30.4206520931 -64 58 30.478845491 3.55 3.43 3.19 2.96 2.86 A7VpSrCrEu 384 0
4 PG 1605+072 HS* 16 08 03.6872637792 +07 04 28.748468964   12.53 12.83 13.18   sdB0.2VIHe3 136 0
5 V* V652 Her pA* 16 48 04.6934854032 +13 15 42.420402252   10.31 10.51     ~ 147 0

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