1998BaltA...7..131G


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.09CEST10:56:24

1998BaltA...7..131G - Baltic Astronomy, 7, 131-140 (1998/March-0)

Blue edge of the ZZ Ceti instability strip versus mass.

GIOVANNINI O., KEPLER S.O., KANAAN A., WOOD M.A., CLAVER C.F. and KOESTER D.

Abstract (from CDS):

In this work we test the theoretical results derived from pulsation models in which the blue edge temperature of the ZZ Ceti instability strip depends on the stellar mass. By using the fundamental parameters (Teff and M) and the results of the time series photometry of a sample of DA stars, we found all the ZZ Ceti stars in our sample but one (G 226-29) fall inside the instability strip if the theoretical blue edge is shifted by 300 K to higher temperature. Our biggest sources of uncertainty are in the Teff and M determinations, but by assuming that the relative ordering in the temperature among the ZZ Ceti stars is reliable, we conclude that the instability strip boundaries depend on stellar mass.

Abstract Copyright:

Journal keyword(s): stars: white dwarfs, fundamental parameters, variables

Simbad objects: 66

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Number of rows : 66

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 LAWD 5 WD* 00 35 35.8380879443 +01 53 08.622736703   15.76 15.52 15.6   DA4.6 56 0
2 EGGR 561 WD* 00 40 22.8841523289 -00 21 30.066950162   15.29 15.1     DA3.2 33 0
3 WG 5 WD* 01 06 53.7115659144 -46 08 53.674327800   15.59 15.39 15.66   DA4.4 54 0
4 V* ZZ Cet WD* 01 36 13.6155835488 -11 20 32.631811638   14.328 14.16 14.4   DA4.0 264 0
5 EGGR 311 WD* 01 54 13.8875357295 +02 01 24.139587704   15.16   14.4   DA3.9 38 0
6 LAWD 13 WD* 02 56 17.2206056121 -70 22 10.850183058 13.72 14.25 14.07 14.03 14.00 DA4.7 53 1
7 EGGR 567 WD* 03 43 06.8598844649 +52 28 55.571906268   15.79 15.64 15.76   DA3.8 25 0
8 V* VY Hor WD* 03 43 29.0337379468 -45 49 04.233992041   15.16 14.91 15.28   DA4.3 58 0
9 G 8-8 WD* 04 04 34.1280174803 +25 08 51.682967467   13.92   14.1   DA3.9 82 0
10 GD 77 WD* 06 41 12.8218209120 +47 44 19.651527548   14.93   14.9   DAP3.4 47 0
11 V* RY LMi WD* 09 24 15.2484202569 +35 16 51.400826911   15.72   15.99   DA4 252 0
12 G 161-36 WD* 09 29 21.2878859828 -04 10 05.698212213   14.94 14.79 15.34   DA3.6 24 0
13 Ton 20 WD* 09 41 04.4670087947 +28 22 24.158233867   15.62 15.57     DA3.3 27 0
14 LAWD 32 WD* 09 46 39.0736152665 +43 54 52.235353533   13.39   13.8   DA3.8 96 0
15 WG 14 WD* 09 51 39.2009016214 -57 26 38.574110884   15.14 14.94     DA3.9 28 0
16 PG 1022+050 WD* 10 24 59.8259661630 +04 46 10.498562889   14.37 14.20 14.2   DA3.5 48 0
17 PG 1026+024 WD* 10 29 09.8055055901 +02 05 53.669135423   14.34 14.20 14.46   DA3.8 31 0
18 Ton 1323 WD* 11 04 32.5722911355 +36 10 48.873727889   14.76 14.49     DA3.7 61 0
19 GD 133 WD* 11 19 12.3989572558 +02 20 33.046829334   14.76 14.57 14.8   DA4.0 78 0
20 PG 1129+072 WD* 11 32 03.4693560379 +06 55 09.163870672   15.37       DA3.6 23 0
21 LAWD 38 WD* 11 50 20.1723473719 +25 18 32.765371120   15.78   15.4   DA5 56 0
22 WG 22 WD* 12 38 49.7813250074 -49 48 00.218655097   14.14 13.96     DA4.2 210 0
23 EGGR 92 WD* 12 47 14.7135859851 +14 42 30.877662929   16.08   15.9   DA4.6 54 0
24 GD 320 WD* 12 55 26.3446290678 +47 57 19.252196643   16.5       DA3.4 26 0
25 BD-07 3632 WD* 13 30 13.6369525883 -08 34 29.470861983 11.803 12.398 12.340 12.39 12.436 DA3.5 174 0
26 BD+34 2473B WD* 13 57 09.6172314285 +33 48 02.453072295   16.46   16.15   DA3.5 34 0
27 PG 1418-005 WD* 14 21 31.2059681781 -00 44 23.150476991   16.64 16.7     DA3.4 20 0
28 V* MY Aps WD* 14 33 07.6357496582 -81 20 14.126849475   13.49 13.35 13.65   DA4.1 126 0
29 LAWD 56 WD* 14 50 49.3756970498 +07 33 33.867231695   15.50   15.4   DA3.4 57 0
30 GD 176 WD* 15 10 29.0413266718 -10 45 19.417437958   15.65 15.42 15.2   DA4.9 28 0
31 GD 189 WD* 15 42 14.2127624744 -03 41 31.291700786   15.45 15.20 15.0   DA5.0 32 0
32 HD 140901B WD* 15 47 30.0208012719 -37 55 08.458405808   13.10 12.80 13.53 12.34 DA4.8 83 0
33 GD 194 WD* 15 52 26.3787018090 +18 10 18.690252959   14.94   15.2   DA3.4 42 0
34 EGGR 174 WD* 15 58 04.8189341568 -09 08 07.933743422   14.89 14.80 14.3 14.98 DA3.4 38 0
35 Ross 808 WD* 16 01 23.1868249632 +36 48 34.290277580   14.53   14.7   DA4.4 103 0
36 EGGR 116 WD* 16 08 22.1888382580 +42 05 43.437369514   13.91   13.7   DA3.8 39 0
37 GD 196 WD* 16 13 02.2928878600 +16 31 55.185673871   15.86   15.7   DA3.3 36 0
38 L 202-179 WD* 16 20 34.6137523896 -59 16 17.818785854   15.03 14.93 15.22   DA3.8 14 0
39 GD 202 WD* 16 38 40.4040910150 +15 54 16.665916861   15.74 15.60     DA3.8 22 0
40 EGGR 120 WD* 16 39 27.8216532682 +33 25 22.241769713   14.83   14.6   DA4.9 63 0
41 V* DN Dra WD* 16 48 25.6321433630 +59 03 22.663406299   12.34 12.17 12.44   DA4.0 200 0
42 GD 515 WD* 16 54 29.0574681303 +63 39 21.175483186   15.5   15.9   DA3.2 33 0
43 Wolf 672 A WD* 17 18 35.1636102144 +01 56 53.205524371       14.63   DA3.7 76 0
44 BPM 24754 WD* 17 19 01.0244830816 -54 46 16.958192007       15.81 15.48 DA4.5 27 1
45 EGGR 177 WD* 18 30 39.4327319613 -10 36 59.929151196   15.41 15.28 15.82   DA3.6 32 0
46 EGGR 200 WD* 18 42 57.7478203893 -11 08 53.183339852       14.46 14.01 DA4.9 33 0
47 EGGR 128 WD* 18 59 49.2016356039 +11 58 40.271503737   15.72   15.3   DA5.0 32 0
48 G 142-B2B WD* 19 13 38.6750932557 +13 36 27.363375150 13.52     14.47   DA3.6 44 0
49 GD 219 WD* 19 21 40.4180173962 +14 40 41.402969332   13.07 13.01 13.3   DA3.3 67 0
50 V* PT Vul WD* 19 52 27.8765609250 +25 09 29.176771316   15.13   15.1   DA4.2 65 0
51 EGGR 261 WD* 20 49 06.6997831624 +37 28 14.051804868   13.40   13.2   DA3.4 62 0
52 LAWD 83 WD* 21 13 16.8542099131 -81 49 12.878202704 13.28 13.82 13.59 13.6   DA4.8 88 0
53 G 263-3 WD* 21 26 57.6568975270 +73 38 44.664588151 12.15 12.80 12.83 13.30   DA3.1 96 0
54 EGGR 582 WD* 21 38 46.1926338680 +23 09 21.490041640   15.39   14.6   DA4.9 45 0
55 GD 397 WD* 21 52 02.8926588199 +37 26 19.112716757   15.34 15.04 15.57   DA3.7 26 0
56 EGGR 155 WD* 22 49 05.5506899099 +22 36 31.990253835   14.55   13.8   DA4.7 93 0
57 EGGR 263 WD* 23 01 05.5062186987 +40 56 13.944665889   15.5       DA5.0 26 1
58 WD 2302-773 WD* 23 05 44.9 -77 01 48           DA3.7 3 0
59 PG 2303+243 WD* 23 06 17.6911157741 +24 32 07.677770960   15.4   15.2   DA4.3 46 0
60 PG 2306+131 WD* 23 08 30.5124598921 +13 19 23.362383478   15.38 15.1 15.3   DA3.7 27 0
61 GD 556 WD* 23 14 04.3024166738 +55 28 14.112706120   16       DA3.0 27 0
62 PG 2322+207 WD* 23 24 35.1950559211 +20 56 33.829001730   15.55 15.47 15.82   DA3.7 22 0
63 V* ZZ Psc WD* 23 28 47.6364608228 +05 14 54.234982405   13.17   13.0   DA4.1 448 0
64 WG 54 WD* 23 40 35.4696644070 -75 45 08.732268616   14.75 14.77 15.16   DA3.5 20 0
65 LAWD 93 WD* 23 43 50.7211092775 +32 32 46.726422307   13.06 12.94 13.12   DA3.8 135 0
66 V* HW Aqr WD* 23 51 22.0903868280 -24 08 17.326639274   15.52   15.1   DA4.2 36 0

    Equat.    Gal    SGal    Ecl

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2021.05.09-10:56:24

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