2006A&A...449..281D


C.D.S. - SIMBAD4 rel 1.7 - 2020.04.05CEST21:18:13

2006A&A...449..281D - Astronomy and Astrophysics, volume 449, 281-292 (2006/4-1)

A spectroscopic study of southern (candidate) γ Doradus stars. I. Time series analysis.

DE CAT P., EYER L., CUYPERS J., AERTS C., VANDENBUSSCHE B., UYTTERHOEVEN K., REYNIERS K., KOLENBERG K., GROENEWEGEN M., RASKIN G., MAAS T. and JANKOV S.

Abstract (from CDS):

We present the results of a spectroscopic study of 37 southern (candidate) γDoradus stars based on echelle spectra. The observed spectra were cross-correlated with the standard template spectrum of an F0-type star for easier detection of binary and intrinsic variations. We identified 15 objects as spectroscopic binaries, including 7 new ones, while another 3 objects are binary suspects. At least 12 objects show composite spectra. We could determine the orbital parameters for 9 binaries, of which 4 turned out to be ellipsoidal variables. For 6 binaries, we estimated the expected time-base of the orbital variations. Clear profile variations were observed for 17 objects, pointing towards stellar pulsation. For 8 of them, we have evidence that the main spectroscopic and photometric periods coincide. Our results, in combination with prior knowledge from the literature, lead to the classification of 10 objects as new bona fide γDoradus stars, 1 object as a new bona fide δ Scuti star, and 8 objects as constant stars. Finally, we determined the projected rotational velocity by two independent methods. The resulting vsini values range from 3 to 135km/s. For the bona fide γ Doradus stars, the majority has vsini below 60km/s.

Abstract Copyright:

Journal keyword(s): stars: variables: general - stars: oscillations - line: profiles

Status at CDS:  

CDS comments: Tables 1 and 4 HIP 5745 is a misprint for HIP 5735.

Simbad objects: 37

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Number of rows : 37

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 HD 5590 * 00 57 26.1854700817 -22 25 11.373709341   9.59 9.19     F2V 17 0
2 HD 7455 * 01 13 42.4885875457 -50 39 31.053166552   8.89 8.43     F5V 15 0
3 HD 8393 PM* 01 22 04.3027272045 -55 14 26.055425877   10.02 9.48     F7wF3 8 0
4 V* CU Phe gD* 01 38 30.7475364281 -42 55 40.449580984   6.984 6.668     F0V 44 0
5 V* FO Cet gD* 02 06 10.7295548331 -10 16 34.378661464   7.03 6.73     F0V 42 0
6 V* EP Cet gD* 02 24 09.5670395425 -16 15 15.485076741   6.96 6.67     F0IV/V 43 0
7 * kap Ret PM* 03 29 22.6772397 -62 56 15.099119   5.10 4.71     F3IV/V 153 1
8 V* IK Eri gD* 04 09 07.7474691737 -16 23 58.030561187   8.49 8.16     F2V 39 0
9 * gam Dor gD* 04 16 01.5882311191 -51 29 11.919063290   4.55 4.20     F1V 284 0
10 HD 27377 * 04 17 50.7237946132 -34 11 11.540036759   7.80 7.45     F0V 22 0
11 HD 27604 ** 04 18 40.0263041089 -52 51 36.339744991       7.03   F7IV/V 45 0
12 * zet Dor PM* 05 05 30.6561782324 -57 28 21.728931803   5.215 4.708     F9VFe-0.5 212 0
13 HD 34025 El* 05 11 59.1564378054 -47 16 26.452614868   8.26 7.897   7.386 F2IV 13 0
14 HD 35416 PM* 05 23 12.3161308454 -31 44 55.554971086   7.92 7.54   7.08 F3V_m-1.5 35 0
15 V* AC Lep gD* 06 00 17.6603127836 -12 54 00.115324998   6.548 6.195     F2IV 43 0
16 V* AW Lep gD* 06 04 35.0697398632 -14 01 57.352266952   7.885 7.59     A9V 19 0
17 V* V350 CMa gD* 06 42 46.0439873451 -22 26 54.933639357   6.56 6.23     F2V 56 0
18 V* V769 Mon gD* 07 59 03.9469610054 -04 19 56.701455763   7.26 6.97     A9/F0IV 25 0
19 V* V415 Hya gD* 09 25 27.0320937160 -06 24 16.275775905   7.29 7.00     A5II(m) 20 0
20 HD 85964 El* 09 54 28.9391460365 -37 17 24.393135339   7.93 7.52   7.018 F3IV/V 22 0
21 * gam Vir A PM* 12 41 39.6237654353 -01 26 57.821832451   3.80 3.440     F1-F2V 371 0
22 HD 110606 gD* 12 43 40.4290115420 -35 24 50.481367474   8.24 7.87     F2V 22 0
23 V* V1026 Cen gD* 12 51 50.7458443778 -52 07 43.289958023   9.60 9.23     A(3)mA5-A7 14 0
24 HD 111829 * 12 53 41.0913505023 -74 53 47.836212871   9.80 9.49     A1IV/V 10 0
25 HD 112685 PM* 12 59 07.3825982796 -45 57 43.844255076   8.12 7.85     F0V 18 0
26 HD 112934 PM* 13 00 33.5253514657 -33 03 04.762680113   6.86 6.57     A9V 30 0
27 V* MX Vir dS* 14 17 41.7805868934 -21 49 43.855513478   7.78 7.35     F2II 28 0
28 V* V349 Vir Al* 14 26 03.0934116582 -00 41 30.290081592   8.740 8.306     F5V 29 0
29 V* IN Lib RR* 15 17 32.0806069187 -10 30 02.156961680   7.64 7.30     F3IV/V 19 0
30 * iot TrA gD* 16 27 57.3451690929 -64 03 28.592059202   5.63 5.27     F0IV 50 1
31 V* V872 Ara gD* 16 40 44.3989852238 -51 28 41.725775648   6.58 6.29     F1Vnnm-4 34 0
32 V* V2502 Oph gD* 18 17 04.8405513469 +01 00 20.626289799   6.91 6.61     F2V 95 0
33 V* V349 Tel gD* 19 50 08.3604132309 -50 36 09.147696033   7.89 7.60     F2V 18 0
34 V* CK Ind gD* 22 04 38.4299738040 -64 43 42.007848070   7.57 7.32     A9/F0V-IV 78 0
35 V* CX Gru gD* 22 37 47.7333224238 -39 51 25.613156854   7.12 6.59     F7V 22 1
36 V* EE Tuc gD* 22 57 59.4338555055 -59 05 22.195820990   7.03 6.69     F2V 23 0
37 V* DI Gru EB* 23 06 48.0110467978 -38 47 38.808572716   9.07 8.70     F3IV 15 0

    Equat.    Gal    SGal    Ecl

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2020.04.05-21:18:13

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