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

Full paper

View the references in ADS

Number of rows : 12

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Sp type	#ref 1850 - 2023	#notes
1	* 20 Eri	a2*	03 36 17.4041095200	-17 28 01.472307996	4.61	5.10	5.23	B8/9III	174	0
2	HD 23055	*	03 41 22.3898260128	-19 35 03.800183676		6.666	6.578	A3IV/V	35	0
3	* tau06 Eri	PM*	03 46 50.8873186498	-23 14 59.002090709		4.65	4.20	F5IV-V	186	0
4	* 32 Tau	PM*	03 56 52.0771099872	+22 28 40.704869352		5.946	5.617	F2IVs	64	0
5	V* V1137 Tau	a2*	04 12 51.2508054048	+22 24 48.482221392	6.04	6.31	6.12	B8III	109	0
6	* 51 Tau	SB*	04 18 23.2109961408	+21 34 45.188971896		5.945	5.631	F0V	259	0
7	* ksi02 CMa	*	06 35 03.3875525904	-22 57 53.263500084		4.49	4.50	A0III	69	0
8	HD 47827	**	06 39 36.2255907432	-23 41 44.483235792		6.02	6.05	A0V	26	1
9	* 12 CMa	a2*	06 47 01.4835271104	-21 00 55.451696472	5.27	5.89	6.08	B7II/III	142	0
10	* 17 Lib	*	14 58 13.4128427832	-11 09 17.153153064		6.604	6.601	K2III	37	0
11	V* HI Lib	a2*	15 09 02.4051867312	-13 59 58.675373736		7.84	7.46	F2VpSrCrEu	130	0
12	* eps Lib	SB*	15 24 11.8837924176	-10 19 20.203874400		5.358	4.920	F4V	142	0

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