Rotational periods of four roAp stars

Details Rotational periods of four roAp stars Rotational periods of four roAp stars

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005a%26a...429l..55r&link_type=abstract

Astronomy and Astrophysics, v.429, p.L55-L58 (2005)

Astronomy and Astrophysics

Astrophysics

20

Stars: Individual: Hd 12098, Hd 24712, Hd 122970, Hd 176232, Stars: Peculiar, Magnetic Fields

Scientific paper

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 ± 0.00016 d, crucial for interpretation of upcoming MOST observations of this star), new rotational periods for HD 12098 and HD 122970 (Prot=5.460 ± 0.001 d and Prot=3.877 ± 0.001 d, respectively) and evidence for an extremely long period for HD 176232.
Table 1 is only available in electonic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http: / / cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/429/L55

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