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

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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

    Equat.    Gal    SGal    Ecl

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2021.01.27-11:12:44

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