1999MNRAS.309L..19H

Query : 1999MNRAS.309L..19H

1999MNRAS.309L..19H - Mon. Not. R. Astron. Soc., 309, L19-L23 (1999/October-3)

The domain of gamma Doradus variables in the Hertzsprung-Russell diagram.

HANDLER G.

Abstract (from CDS):

70 new γ Doradus candidates were identified from Hipparcos photometry, which represents more than a doubling of the presently known number. Selecting the objects with good evidence for multiperiodicity, it is found that these stars, together with bona fide members of the class, occupy a well-defined region in a colour-magnitude diagram. This domain corresponds to a range of 7200-7700K on the zero-age main sequence (ZAMS) and 6900-7500K one magnitude above it, which partly overlaps with the instability strip of δ Scuti stars.

For the first time, γ Doradus stars can be discussed as a group. They can be found over a significant fraction of the main sequence lifetimes for objects in the relevant temperature range. An upper limit on the surface metallicity of γ Doradus stars is apparent, which may guide the search for their pulsation driving mechanism. The importance of possible objects exhibiting both γ Doradus and δ Scuti-type pulsations is discussed.


Abstract Copyright: 1999, Royal Astronomical Society

Journal keyword(s): Hertzsprung-Russell (HR) diagram - stars: oscillations - δ Scuti - stars: variables: other

Simbad objects: 82

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Number of rows : 82
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 V* V1006 Cas gD* 00 07 37.4753424264 +53 31 35.554692684   8.693 8.33     F0 32 0
2 V* FM Psc gD* 00 31 49.7508643944 +04 50 46.181449284   8.31 7.98     F0V 27 0
3 V* V1012 Cas gD* 01 12 53.8932461664 +51 36 08.475465708   7.62 7.277     F2V 46 0
4 V* V1132 Cas gD* 01 33 45.4780599456 +60 37 23.191659156   8.53 8.23     F1V 44 0
5 V* FO Cet gD* 02 06 10.7295184296 -10 16 34.380991380   7.03 6.73     F0V 50 0
6 V* V623 Per gD* 02 41 50.8319255880 +42 51 38.011750416   11.88 11.52     A5 18 0
7 V* KU Eri gD* 02 46 33.9619467168 -06 42 06.835801572   8.14 7.78     F0V 35 0
8 HD 21788A * 03 30 47.6609349440 +05 09 09.450966164   7.90 7.51     F3V 28 0
9 HD 23005 PM* 03 46 00.9400234704 +67 12 05.768204220   6.122 5.782     F1IVnn 39 0
10 HD 23874 gD* 03 48 51.5693667072 +11 42 31.733709408   8.597 8.21     F1+F8: 40 0
11 V* IU Eri dS* 04 16 35.9778657672 -10 05 08.756567160   7.66 7.48     A2III 22 0
12 HD 27377 SB* 04 17 50.7235634544 -34 11 11.540667048   7.80 7.45     F0V 31 0
13 HD 35187 Y*O 05 24 01.17261 +24 57 37.5791   8.79 8.71 8.72   A2e+A7 107 0
14 V* AC Lep gD* 06 00 17.6604502536 -12 54 00.121230396   6.548 6.195     F2IV 52 0
15 V* AW Lep gD* 06 04 35.0696340576 -14 01 57.351956088   7.885 7.59     A9V 27 0
16 V* V553 Aur gD* 06 44 11.7491335008 +36 59 38.401739880   7.79 7.47     F0 30 0
17 V* DD CMi gD* 07 48 58.2213037224 +00 39 42.993856872   7.78 7.43     F0IV 31 0
18 V* V769 Mon gD* 07 59 03.9468373776 -04 19 56.702793684   7.26 6.97     A9/F0IV 33 0
19 V* EF Lyn gD* 08 19 31.7615909208 +35 02 44.407942080   7.48 7.17     A5 29 0
20 V* LS UMa gD* 08 27 40.0863232584 +67 58 26.774032908   8.42 8.11     F0 24 0
21 V* LU UMa gD* 09 24 03.2589318048 +61 46 22.847327904   8.78 8.46     F0V 31 0
22 HD 85693 gD* 09 52 56.3643161064 -26 45 20.219530932   8.05 7.72     F0V 29 0
23 V* V416 Hya gD* 09 57 39.6750143064 -16 31 19.668897516   6.92 6.61     F0V 36 0
24 HD 86358 SB* 09 58 26.0389184232 +27 45 32.396952132 6.790 6.800 6.460     F2V 58 0
25 HD 91201 gD* 10 29 58.8689149272 -62 42 45.185210136   8.44 8.12     F1V/IV 22 0
26 V* NY UMa gD* 11 32 12.8817271440 +38 55 32.986101792   8.28 7.99     Am 49 0
27 HD 103257 gD* 11 53 16.8199469976 -36 34 38.477804988   6.93 6.62     F2Vm-2 32 0
28 HD 104860 PM* 12 04 33.7308619800 +66 20 11.712857172   8.50 7.91     G0/F9V 96 0
29 V* NZ UMa gD* 12 08 26.0768981232 +48 58 06.586452624   8.05 7.758     F0III 32 0
30 HD 109032 PM* 12 31 39.3617321352 +12 07 40.274830164   8.38 8.08     F1V 30 0
31 HD 109838 Pu* 12 37 33.4807370588 +45 15 13.555742663   8.32 8.03     F2IV 25 0
32 HD 109799 gD* 12 37 42.2793762600 -27 08 19.987900512   5.736 5.410     F2IV 93 0
33 HD 110606 gD* 12 43 40.4290471128 -35 24 50.482678536   8.24 7.87     F2V 30 0
34 * 8 Dra gD* 12 55 28.5485641728 +65 26 18.507128532   5.516 5.225     F3IV 94 0
35 HD 112934 PM* 13 00 33.5254974408 -33 03 04.769545536   6.86 6.57     A9V 39 0
36 HD 113357 gD* 13 03 36.6639818568 -38 58 06.398629824   8.19 7.87     F2Vm-2 29 0
37 HD 113867 gD* 13 06 22.7100385896 +22 16 47.625214980   7.115 6.825     F4VmA6 35 0
38 * 58 Vir gD* 13 17 27.3256669272 -10 32 46.642703136   7.23 6.89     F1IV/V 37 0
39 HD 122300 Pu* 13 59 41.0076806400 +52 09 29.932149240   8.59 8.18     kA9hF5mF5(IV)EuSr 24 0
40 * 97 Vir gD* 14 12 33.4634121432 -09 54 00.290907720   7.46 7.17     A8-A7V 32 0
41 V* V349 Vir EB* 14 26 03.0907130592 -00 41 30.243382908   8.740 8.306     F5V 36 0
42 HD 133803 gD* 15 07 14.9365580040 -29 30 16.132469112   8.47 8.12     F2IVm-2 55 0
43 V* KQ Lup EB* 15 29 19.2701821152 -38 38 06.118351116   6.75 6.43     F2V 43 0
44 V* NX Lup gD* 15 37 16.9443836256 -32 03 26.355407364   8.25 7.91     A9/F0V 33 0
45 HD 144451 gD* 16 06 51.4327639224 -21 51 49.806145332   8.20 7.85     F0V 36 0
46 * iot TrA SB* 16 27 57.3455455848 -64 03 28.585517400   5.61 5.29     F0IV 61 1
47 V* V872 Ara gD* 16 40 44.3994563352 -51 28 41.726953560   6.58 6.29     F1Vnnm-4 41 0
48 V* V645 Her gD* 16 55 01.3266397632 +29 02 19.925608236   7.85 7.54     A8IV 45 0
49 V* VX UMi gD* 17 01 40.1126486160 +75 17 50.983079316 6.490 6.480 6.180     F2IVnn 51 0
50 HD 155854 gD* 17 15 39.8126429016 -34 21 08.073088236   8.18 7.86     F0V 25 0
51 HD 160295 RR? 17 38 57.8737108512 +02 39 30.448241136   8.12 7.70     F2/3V 41 0
52 HD 166114 * 18 11 05.5628156880 -41 21 32.814185004   6.133 5.845     F2V 40 0
53 V* V2502 Oph gD* 18 17 04.8404548584 +01 00 20.632225968   6.91 6.61     F2V 109 0
54 V* V1136 Her gD* 18 32 47.8634484432 +24 40 45.340557996   8.099 7.723     F0 33 0
55 HD 172416 EB* 18 42 22.4850782952 -47 45 39.484630440   7.08 6.62     F6V 29 0
56 V* HN Dra RR? 18 44 53.1326219016 +57 05 17.142065448   8.45 8.07     F2 22 0
57 V* V353 Tel dS* 18 49 57.2501686896 -52 07 19.364007576   7.35 7.12     A3III/IV 17 0
58 V* V1709 Aql gD* 18 54 54.3634752576 +01 07 17.706958896   7.714 7.36     F2V 44 0
59 V* V5546 Sgr gD* 19 24 01.6472856864 -33 32 32.322550848   7.92 7.65     F0V 27 0
60 HD 187353 * 19 49 51.1037652912 -10 43 30.159071832   7.88 7.55     F1IV/V 25 0
61 V* V349 Tel gD* 19 50 08.3604248064 -50 36 09.145076940   7.89 7.60     F2V 25 0
62 HD 187615 gD* 19 50 24.9932286360 +14 30 49.902080616   8.26 7.95     A3 18 0
63 HD 188032 gD* 19 55 20.3967828336 -48 16 56.196688260   8.44 8.14     A9V 24 0
64 HD 189631 gD* 20 02 40.7984381112 -41 25 03.939928716   7.84 7.54     F0V 31 0
65 * 43 Cyg gD* 20 27 02.2674936096 +49 23 00.104394552   6.024 5.715     F0V: 60 0
66 V* BL Cap SB* 20 42 39.7741270464 -18 06 34.825041000   7.64 7.33     F2IV/V 22 0
67 HD 197451 gD* 20 43 56.9639867784 -05 35 24.829470204   7.54 7.18     F0V 23 0
68 HD 197541 Pu* 20 45 23.8507042007 -30 28 41.551869768   7.11 6.78 7.89   F0IV/V 33 0
69 V* NP Aqr EB* 20 51 19.0451463768 -13 55 27.922047420   7.93 7.60     F0V 22 0
70 HD 199143 PM* 20 55 47.6748292416 -17 06 51.061731768   7.84 7.32 8.29   F8V 123 0
71 V* OR Aqr EB* 21 13 13.7034859920 -04 16 00.224811984   8.280 7.96     F0V 21 0
72 V* NZ Peg RR? 21 39 01.1887179552 +20 15 55.623301164   6.065 5.762     F1Vnn 71 0
73 HD 206481 gD* 21 45 44.1115348704 -69 21 49.421035548   8.20 7.86     F2V 25 1
74 HD 207651 SB* 21 50 08.2320284304 +19 25 26.386863240   7.44 7.21     A5 29 0
75 V* CK Ind gD* 22 04 38.4298621464 -64 43 42.005408160   7.57 7.32     A9/F0V-IV 87 0
76 V* PR Peg gD* 22 18 51.2711235288 +04 08 35.270893356   9.46 9.11     A8V 27 0
77 * 39 Peg gD* 22 32 35.4807389712 +20 13 48.075873816 6.770 6.770   6.2   F1V 75 0
78 HD 216108 EB* 22 49 28.3515070800 +43 50 36.722815080   8.10 8.04     A0 11 0
79 V* EE Tuc gD* 22 57 59.4338327640 -59 05 22.198067700   7.03 6.69     F2V 32 0
80 HD 219843 PM* 23 18 42.2618532984 +36 05 24.808875900   7.67 7.37     F0 14 0
81 V* V418 Peg gD* 23 35 37.5281725056 +14 35 37.170888756   7.72 7.444     A3m 36 0
82 HD 224288 gD* 23 56 35.3237590992 -55 29 00.411562572   8.37 8.04     F2IV/V 27 0

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