2000A&AS..146...13A

Query : 2000A&AS..146...13A

2000A&AS..146...13A - Astron. Astrophys., Suppl. Ser., 146, 13-17 (2000/October-1)

uvby photometry of the magnetic CP stars 20 Eridani, HR 1297, 12 Canis Majoris, and HD 134214.

ADELMAN S.J.

Abstract (from CDS):

Differential Stroemgren uvby observations from the Four College Automated Photoelectric Telescope (FCAPT) are presented for the mCP stars 20 Eri, HR 1297, 12 CMa, and HD 134214. Adelman & Boyce found suggestions that the light curves of 20 Eri change between observing seasons. Observations for two additional seasons confirm this behavior and lead to an improved period of 1.928890 days. For HR 1297 a new period of 15.7490 days was derived. The uvby light curves now appear to be the same for different observing seasons. 12 CMa is found to be a photometric variable with the 2.18010 day period determined from magnetic measurements by Bohlender et al. Observations of the rapidly oscillating Ap star HD 134214 confirm the lack of photometric variability which is not associated with the rapid oscillations.

Abstract Copyright: ∼

Journal keyword(s): stars: chemically peculiar - stars: individual: 20 Eri - stars: individual: HR 1297 - stars: individual: 12 CMa - stars: individual: HD 134214

VizieR on-line data: <Available at CDS (J/A+AS/146/13): table2.dat table3.dat table4.dat table5.dat tablea.dat>

Simbad objects: 12

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Number of rows : 12
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 * 20 Eri a2* 03 36 17.4041095200 -17 28 01.472307996 4.61 5.10 5.23     B8/9III 181 0
2 HD 23055 * 03 41 22.3898260128 -19 35 03.800183676   6.666 6.578     A3IV/V 38 0
3 * tau06 Eri PM* 03 46 50.8873186498 -23 14 59.002090709   4.65 4.20     F5IV-V 206 0
4 * 32 Tau PM* 03 56 52.0771099872 +22 28 40.704869352   5.946 5.617     F2IVs 70 0
5 V* V1137 Tau a2* 04 12 51.2508054048 +22 24 48.482221392 6.04 6.31 6.12     B8III 113 0
6 * 51 Tau SB* 04 18 23.2109961408 +21 34 45.188971896   5.945 5.631     F0V 271 0
7 * ksi02 CMa * 06 35 03.3875525904 -22 57 53.263500084   4.49 4.50     A0III 74 0
8 HD 47827 ** 06 39 36.2255907432 -23 41 44.483235792   6.02 6.05     A0V 29 0
9 * 12 CMa a2* 06 47 01.4835271104 -21 00 55.451696472 5.27 5.89 6.08     B7II/III 152 0
10 * 17 Lib * 14 58 13.4128427832 -11 09 17.153153064   6.604 6.601     K2III 40 0
11 V* HI Lib a2* 15 09 02.4051867312 -13 59 58.675373736   7.84 7.46     F2VpSrCrEu 136 0
12 * eps Lib SB* 15 24 11.8837924176 -10 19 20.203874400   5.358 4.920     F4V 156 0

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