2005A&A...429L..55R

Query : 2005A&A...429L..55R

2005A&A...429L..55R - Astronomy and Astrophysics, volume 429L55-58 (2005/1-3)

Rotational periods of four roAp stars.

RYABCHIKOVA T., WADE G.A., AURIERE M., BAGNULO S., DONATI J.-F., JEFFERS S.V., JOHNSON N., LANDSTREET J.D., LIGNIERES F., LUEFTINGER T., MARSDEN S., MOUILLET D., PALETOU F., PETIT P., REEGEN P., SILVESTER J., STRASSER S. and TOQUE N.

Abstract (from CDS):

Forty-five new measurements of the mean longitudinal magnetic fields and mean equivalent widths of 4 roAp stars have obtained using the MuSiCoS spectropolarimeter at Pic du Midi observatory. These new high-precision data have been combined with archival measurements in order to constrain the rotational periods of HD 12098, HD 24712 = HR 1217, HD 122970 and HD 176232 = 10 Aql. We report a revised rotational period for HD 24712 (Prot=12.45877±0.00016d, crucial for interpretation of upcoming MOST observations of this star), new rotational periods for HD 12098 and HD 122970 (Prot=5.460±0.001d and Prot=3.877±0.001d, respectively) and evidence for an extremely long period for HD 176232.

Abstract Copyright: ∼

Journal keyword(s): stars: individual: HD 12098, HD 24712, HD 122970, HD 176232 - stars: peculiar - magnetic fields

Simbad objects: 4

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Number of rows : 4
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 12098 a2* 02 00 40.1774521766 +58 31 37.130534305   8.47 8.08 8.758   F0Eu 55 0
2 V* DO Eri a2* 03 55 16.1313315312 -12 05 56.727712752 6.35 6.32 6.00     A9VpSrEuCr 411 0
3 V* PP Vir a2* 14 04 48.9376773456 +05 24 51.459774732   8.70 8.29     F0 86 0
4 * 10 Aql a2* 18 58 46.9240671288 +13 54 23.941711692 6.23 6.14 5.89     A7VpSrEu_Ksn 292 0

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