2002MNRAS.337L...1K

Query : 2002MNRAS.337L...1K

2002MNRAS.337L...1K - Mon. Not. R. Astron. Soc., 337, L1-L5 (2002/December-1)

Discovery of rapid radial velocity variations in the roAp star 10 Aql and possible pulsations of β CrB.

KOCHUKHOV O., LANDSTREET J.D., RYABCHIKOVA T., WEISS W.W. and KUPKA F.

Abstract (from CDS):

We report discovery of radial velocity variations in rare earth spectral lines of the roAp star 10 Aql with amplitudes of between 30 and 130 m s–1 and periods of about 11 min. Radial velocity variations with amplitude 70 m s –1 may also have been detected in one spectral line of Fe i in β CrB. If confirmed, our results may indicate that all Ap stars in a certain temperature range pulsate, which means that roAp stars do not exist as a separate class but are only distinguished by higher pulsational amplitudes.

Abstract Copyright: RAS

Journal keyword(s): stars: chemically peculiar - stars: individual: 10 Aql - stars: individual: β CrB - stars: oscillations

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 HD 83368 a2* 09 36 25.4255061727 -48 45 04.240404102   6.49 6.23     A8VSrCrEu 277 0
2 * alf Cir a2* 14 42 30.4206520931 -64 58 30.478845491 3.55 3.43 3.19 2.96 2.86 A7VpSrCrEu 384 0
3 * bet CrB a2* 15 27 49.7540595700 +29 06 20.494640434 4.08 3.97 3.68 3.50 3.45 F2VpSrCrEuSi 703 0
4 * 10 Aql a2* 18 58 46.9240671288 +13 54 23.941711692 6.23 6.14 5.89     A7VpSrEu_Ksn 292 0
5 * gam Equ a2* 21 10 20.5000721160 +10 07 53.691967776 5.03 4.94 4.68 4.43 4.32 A9VpSrCrEu 564 0

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