2004PASP..116..178P

Query : 2004PASP..116..178P

2004PASP..116..178P - Publ. Astron. Soc. Pac., 116, 178-183 (2004/February-0)

Short-period variable Be stars discovered or confirmed through self-correlation analysis of Hipparcos epoch photometry.

PERCY J.R., HARLOW C.D.W. and WU A.P.S.

Abstract (from CDS):

We have surveyed 277 bright Be stars for short-period (0.2-2 day) photometric variability using self-correlation analysis of Hipparcos epoch photometry. This extends the work of Percy et al.; the methods are as described there. We report the discovery, timescale, and amplitude of short-period variability in: HD 7636 (V764 Cas), HD 11606 (V777 Cas), HD 13661 (V549 Per), HD 34921, HD 36408, HD 40978, HD 58343 (FW CMa), HD 63460 (o Pup), HD 88195 (17 Sex), HD 89353 (AG Ant, HR 4049), HD 129954 (CO Cir), HD 158220 (V862 Ara), HD 173219 (V947 Sct), and HD 187567 (V1339 Aql). We report the confirmation of short-period variability using an independent form of analysis in HD 52918 (19 Mon), HD 105382 (V863 Cen), HD 137387 (κ-1 Aps), HD 157832 (V750 Ara), and HD 163868 (V3984 Sgr). These include a β Cephei star (19 Mon), a Vega-type star (17 Sex), and a post-asymptotic giant branch B star (HR 4049). We find that short-period variability is more prevalent in early-B stars than in late-B stars. We have found no β Cephei type variables in our sample of Be stars, other than 19 Mon, which is apparently not a Be star.

Abstract Copyright: ∼

Journal keyword(s): Stars: Emission-Line, Be - Stars: Variables: Other

CDS comments: In table 2, HIP 23971 is a misprint for HIP 33971.

Simbad objects: 20

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Number of rows : 20
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 HD 7636 Be* 01 17 26.2940611656 +57 37 55.454989260 6.06 6.75 6.61     B2IIIne 85 0
2 HD 10463 PM* 01 41 03.2836751400 -43 52 34.353972660   10.29 9.54     G3V 10 0
3 HD 11606 Be* 01 55 42.8535736272 +59 16 24.421983852 6.22 7.08 7.02     B2Vne 90 0
4 HD 13661 Be* 02 14 53.1076636080 +54 31 54.189257484 7.09 7.78 7.79     B2IV-Ve 52 0
5 HD 34921 HXB 05 22 35.2313961840 +37 40 33.638562768 6.78 7.64 7.48     B0IVpe 140 0
6 HD 36408A Be* 05 32 14.1413460264 +17 03 29.278298880 5.823 6.103 6.090 6.037   B5V 109 0
7 HD 40978 Be* 06 04 38.4089582760 +46 35 06.404686404 6.44 7.189 7.286     B3Ve 52 0
8 * 19 Mon bC* 07 02 54.7772531316 -04 14 21.235613879 3.87 4.80 5.00 5.06 5.25 B2Vn(e) 205 0
9 HD 58343 Be* 07 24 40.1873324160 -16 12 05.302248804 4.52 5.15 5.19 5.05 5.06 B2Vne 222 0
10 * omi Pup Be* 07 48 05.1686329933 -25 56 13.810593657 3.42 4.43 4.49 4.37 4.37 B1IVe 228 0
11 * 17 Sex Ae* 10 10 07.5399527923 -08 24 29.411812115   5.911 5.901     A0V 71 0
12 HD 89353 pA* 10 18 07.5899342712 -28 59 31.195183524   5.76 5.53     B9.5Ib/II 315 0
13 HD 105382 Be* 12 08 05.2222663992 -50 39 40.575451536 3.65 4.32 4.47 4.53 4.70 B5V 186 0
14 HD 129954 Be* 14 48 44.5499575944 -66 35 36.822442200 5.14 5.767 5.880     B2V 80 0
15 * kap01 Aps Be* 15 31 30.8221293192 -73 23 22.529543604 4.60 5.37 5.49     B2Vnpe 126 0
16 HD 157832 Be* 17 27 54.8113451976 -47 01 34.397043672 5.81 6.636 6.663     B2ne 75 0
17 HD 158220 Be* 17 31 23.2836129696 -56 55 15.468393900   5.924 5.984     B7II/III 33 0
18 HD 163868 Be* 17 59 56.4314226144 -33 24 29.980813608 6.69 7.311 7.354     B5Ve 72 0
19 HD 173219 Be* 18 44 33.3405747264 -07 06 38.163359880 7.26 8.00 7.88     B1:V:npe 88 0
20 HD 187567 Be* 19 50 17.4788061168 +07 54 08.693564508 5.71 6.389 6.478     B2IVe 104 0

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