2008A&A...477..907P

C.D.S. - SIMBAD4 rel 1.7 - 2021.01.27CET11:12:43

2008A&A...477..907P - Astronomy and Astrophysics, volume 477, 907-915 (2008/1-3)

β Cephei stars in the ASAS-3 data. I. Long-term variations of periods and amplitudes.

PIGULSKI A. and POJMANSKI G.

Abstract (from CDS):

We analyse V-filter ASAS-3 photometry of 41 known β Cephei-type stars. The ASAS-3 photometry is combined with the archival data, if available, to determine long-term stability of periods and amplitudes of excited modes. Frequencies of modes are derived by means of Fourier periodograms with consecutive prewhitening. The results are examined in the context of detection threshold. We detected amplitude changes in three β Cephei stars, BW Cru, V836 Cen, and V348 Nor. Period changes were found in KK Vel and V836 Cen. Our analysis shows that intrinsic period changes are more common among multiperiodic stars, apparently because they are caused by some kind of mode interaction. In addition, we found new modes for seven stars, and for ten others we provide new solutions or remove ambiguities in the detected frequencies. One candidate hybrid β Cephei/SPB star, HD133823, is discovered.

Abstract Copyright: ∼

Journal keyword(s): stars: early-type - stars: oscillations - surveys

VizieR on-line data: <Available at CDS (J/A+A/477/907): stars.dat lc1.dat>

Simbad objects: 59

Full paper

View the reference in ADS

Number of rows : 59

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2021	#notes
1	Bol 203	GlC	00 43 55.82	+41 32 35.0	17.955	17.645	16.825	16.280	15.735	~	38	0
2	* del Cet	bC*	02 39 28.95579	+00 19 42.6345	2.97	3.85	4.07			B2IV	367	0
3	HD 37371	*	05 38 09.9004057758	-00 11 01.163032712		8.69	8.64	9.47		A0IV	21	0
4	* bet CMa	bC*	06 22 41.9853527	-17 57 21.307352	0.77	1.73	1.97	2.11	2.35	B1II-III	689	0
5	* 27 CMa	Be*	07 14 15.2119175	-26 21 09.031206	3.76	4.45	4.65	4.64	4.73	B4Ve_sh	221	0
6	V* V350 Pup	bC*	07 30 34.0742017057	-34 05 26.146889993	6.7	7.55	7.62			B1/2Ib/II	39	0
7	HD 71913	Pu*	08 28 43.0050631022	-34 43 53.818153019	6.75	7.57	7.68	8.61		B1/2II	29	0
8	V* KK Vel	bC*	09 07 42.5168787	-44 37 56.795848	6.03	6.758	6.800			B2II/III	61	1
9	V* IL Vel	bC*	09 17 31.1517723026	-52 50 19.474514114	8.51	9.13	9.16			B2III	36	0
10	HD 90288	bC*	10 23 56.9126937806	-57 27 52.417542585	7.05	8.02	8.17			B2III/IV	35	0
11	V* V401 Car	bC*	10 35 30.0530913416	-58 12 08.179885269	8.83	9.57	9.50	9.89	9.36	B5	49	0
12	V* V403 Car	bC*	10 35 40.7035423825	-58 12 44.276483943	7.93	8.75	8.73	9.48	8.65	OB	45	1
13	NGC 3293	OpC	10 35 49	-58 13.8		4.84	4.7			~	285	0
14	HD 92024	Pu*	10 36 08.3334290886	-58 13 04.351273002	8.11	8.90	9.00	9.63	8.94	B1III	61	0
15	V* V1228 Cen	bC*	11 33 18.0211239479	-63 06 16.210661487	9.07	9.77	9.62	9.95		B1III	22	0
16	CPD-62 2707	V*	12 22 12.8646942554	-63 20 47.810721115	9.43	10.09	10.07	10.16		B2III	17	0
17	V* FG Cru	bC*	12 37 47.7404392306	-62 19 22.876784968	10.15	10.60	10.17	10.16		OB	12	0
18	V* KZ Mus	bC*	12 39 19.1643133160	-71 37 18.462449095	8.49	9.09	9.02			B2III	43	0
19	V* FL Cru	bC*	12 53 18.6985040415	-64 01 23.976751514	12.42	12.48	11.52	11.39		OB-	11	0
20	NGC 4755	OpC	12 53 39	-60 21.7						~	269	0
21	NGC 4755 9	bC*	12 53 46.9936917222	-60 18 35.655848405	9.63	10.49	10.29			B1.5Vn	29	0
22	CPD-59 4564	bC*	12 53 57.5384969135	-60 24 58.089466050	8.45	9.12	9.06	9.64		B2III	54	0
23	V* V856 Cen	bC*	12 57 36.2574367359	-49 46 50.095223538	7.66	8.36	8.33			B2II/III	38	0
24	V* V1259 Cen	bC*	13 02 20.2588379812	-63 28 23.441321138		12.10	11.42	11.29		OB-	9	0
25	* alf Vir	bC*	13 25 11.57937	-11 09 40.7501	-0.20	0.74	0.97	1.06	1.30	B1V	828	2
26	* nu. Cen	SB*	13 49 30.2764388	-41 41 15.752069	2.31	3.188	3.386			B2IV	181	0
27	V* V836 Cen	bC*	14 46 25.7600874450	-37 13 20.072260223	7.04	7.88	8.05			B2	103	0
28	HD 133823	V*	15 09 54.5950710489	-65 30 22.613167783	8.98	9.64	9.59			B3II	17	0
29	V* V349 Nor	bC*	16 15 26.4190218813	-52 55 14.519058528	8.34	8.921	8.770			B2II/III	32	0
30	CD-50 10368	V*	16 18 57.9249132583	-51 03 29.744781707	10.3	10.77	10.29	10.29		B2II	13	0
31	* sig Sco	bC*	16 21 11.3157134	-25 35 34.051476	2.32	3.02	2.89	1.69	1.58	O9.5(V)+B7(V)	832	0
32	HD 147985	Pu*	16 26 56.7425186863	-43 47 57.157197847	7.45	8.03	7.92			B1/2II/III	28	0
33	HD 328862	*	16 44 08.8983336907	-47 19 04.487141654	9.89	10.40	10.18	10.20		B3	22	0
34	CPD-46 8213	*	16 46 30.2417906673	-47 01 10.392701349	11.03	11.44	10.89			~	11	1
35	HD 328906	V*	16 49 38.6234816162	-44 31 41.186007519		12.34	11.25			B2	5	0
36	HD 152077	Pu*	16 53 13.9940169635	-43 44 57.961632107	8.74	9.83	9.45	9.62		B2Iab/b	25	0
37	NGC 6231	OpC	16 54 08.51	-41 49 36.0		2.83	2.6			~	489	0
38	HD 152477	V*	16 55 53.6487987618	-48 08 51.968389188	9.5	9.66	9.10	8.73	9.314	B1Ib	21	0
39	HD 155336	V*	17 12 18.3557191334	-33 06 03.120478923	9.18	9.69	9.43	9.75		B1/2Ib	24	0
40	HD 156327	WR*	17 18 23.0613730	-34 24 30.630847	9.88	9.95	9.32	9.67		WC7+B0III	117	0
41	HD 156662	Pu*	17 21 06.0895073364	-45 58 55.617919422	7.35	9.15	9.13	8.70		B2III	33	0
42	V* V2371 Oph	bC*	17 24 34.8185131933	-26 55 29.009308029	9.33	9.61	9.07	9.59		B1/2Ib	26	0
43	HD 164340	bC*	18 02 32.9452080701	-40 05 16.425697054	8.2	9.16	9.25			B0/0.5(III)	38	0
44	HD 165582	V*	18 08 07.5308451130	-34 34 32.357282920	8.58	9.56	9.74	9.88		B1Ib	24	0
45	V* V4382 Sgr	bC*	18 08 44.9164167738	-22 09 38.446447549	7.2	7.93	7.94	8.86		B1/2II	40	0
46	V* V4159 Sgr	bC*	18 11 47.6009891359	-16 53 38.164253207	7.57	8.29	8.16	9.01	8.703	B1Ib	41	0
47	HD 167743	V*	18 17 16.0874701400	-15 27 06.132772446		10.02	9.71			B2Ib	14	0
48	HD 168050	bC*	18 18 38.4901313618	-19 06 10.775946955		10.29	9.91			B3/5Ib	5	0
49	TYC 6270-663-1	V*	18 26 10.3374420000	-17 04 20.765141803	10.38	10.70	10.17	10.18		OB-	7	0
50	LS IV -15 46	V*	18 26 16.9398007470	-15 15 42.817474223	10.65	11.09	10.64	10.74		OB	10	0
51	BD-14 5057	V*	18 27 25.8638307636	-14 42 07.922408115	10.17	10.54	10.09			B	9	0
52	HD 180642	bC*	19 17 14.8041207725	+01 03 33.905280608	7.83	8.47	8.29			B1.5II-III	93	0
53	V* V372 Sge	bC*	20 09 39.5944456896	+21 04 43.633520175		8.26	8.34			B0.5III-IV	33	0
54	V* BW Vul	bC*	20 54 22.3949148537	+28 31 19.182736153	5.47	6.40	6.54			B2IIIv	285	0
55	V* SY Equ	bC*	21 23 28.8088793903	+09 55 54.912227772	7.37	8.33	8.53			B0.5IIIn	84	0
56	* bet Cep	bC*	21 28 39.5968513	+70 33 38.574681	2.05	3.01	3.23	3.33	3.55	B0.5IIIs	687	0
57	V* HN Aqr	bC*	22 37 38.2846197264	-18 39 51.268673991		11.28	11.47			B	59	0
58	* 12 Lac	bC*	22 41 28.6491950195	+40 13 31.619242453	4.24	5.080	5.229			B2III	346	0
59	* 16 Lac	bC*	22 56 23.6292923788	+41 36 13.948197878	4.61	5.436	5.587			B2IV	298	0

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