2007CoAst.151...67S

Query : 2007CoAst.151...67S

2007CoAst.151...67S - Com. in Asteroseismology, 151, 67 (2007/August-0)

A new slowly pulsating subdwarf-B star: HD 4539.

SCHOENAERS C. and LYNAS-GRAY A.E.

Abstract (from CDS):

We report the spectroscopic discovery of slow pulsations in the subdwarf-B (sdB) star HD 4539. It is amongst the brightest sdB stars and, as such, has been well studied. Its temperature and gravity would place it squarely where the so-called 'Betsy' stars (long- period sdB pulsators) are found, and this has been confirmed by the discovery of line-profile variations reported in this paper for the first time. As periodogram analyses of radial velocity curves obtained in 2005 and 2006 yield several significant frequencies, line- profile variations are very probably a consequence of pulsation.

Abstract Copyright: ∼

Journal keyword(s):

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	HD 4539	HS*	00 47 29.2193758344	+09 58 55.690280832	9.17	10.12	10.24			sdB	101	0

Query : 2007CoAst.151...67S

Basic data :

HD 4539 -- Hot Subdwarf

* (HD,AC,...), blu (2019A&A,FB,...), HS* (1968ApJ), UV (GALEX,PG), NIR (2MASS)

00 47 29.2193758344 +09 58 55.690280832 (Optical) [ 0.0607 0.0298 90 ] A 2020yCat.1350....0G

00 44 53.1237966784 +09 42 32.531258507 [ 0.0607 0.0298 90 ]

121.3199643316858 -52.8772450917096 [ 0.0607 0.0298 90 ]

4.658 24.311 [0.092 0.058 90] A 2020yCat.1350....0G

V(km/s) 3.30 [~] / z(~) 0.000011 [~] / cz 3.30 [~] D 1995ARep...39..785E

5.8281 [0.0704] A 2020yCat.1350....0G

sdB D 1968ApJ...152..443S

U 9.17 [~] D 2003AJ....125.2531R

B 10.12 [~] E ~

V 10.24 [~] D 2012MNRAS.427.2180N

G 10.263211 [0.002879] C 2020yCat.1350....0G

J 10.816 [0.023] C 2003yCat.2246....0C

H 10.939 [0.032] C 2003yCat.2246....0C

K 11.027 [0.020] C 2003yCat.2246....0C

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`HD 4539`	`GALEX J004729.2+095855`	`HIP 3701`	`TYC 604-109-1`
`AC +09 6-12`	`GALEX J004729.4+095855`	`2MASS J00472921+0958556`	`UBV M 43712`
`ALS 16639`	`GEN# +6.20028015`	`PB 6163`	`uvby98 100004539`
`CSI+09-00448`	`GEN# +1.00004539`	`PG 0044+097`	`uvby98 620028015`
`EPIC 220641886`	`GSC 00604-00109`	`PHL 830`	`Gaia DR3 2582106305105033216`
`FB 9`	`HIC 3701`	`TIC 418789164`	`Gaia DR2 2582106305103802880`

References (101 between 1850 and 2026) (Total 101)
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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`HD 4539`	`ALS 16639`	`GALEX J004729.2+095855`	`GALEX J004729.4+095855`	`GSC 00604-00109`
`HIC 3701`	`HIP 3701`	`2MASS J00472921+0958556`	`PB 6163`	`PG 0044+097`
`PHL 830`	`TYC 604-109-1`	`uvby98 100004539`	`uvby98 620028015`	`Gaia DR3 2582106305105033216`
`Gaia DR2 2582106305103802880`

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