2008ApJ...676..573M

Query : 2008ApJ...676..573M

2008ApJ...676..573M - Astrophys. J., 676, 573-583 (2008/March-3)

Limits on planets around pulsating white dwarf stars.

MULLALLY F., WINGET D.E., DEGENNARO S., JEFFERY E., THOMPSON S.E., CHANDLER D. and KEPLER S.O.

Abstract (from CDS):

We present limits on planetary companions to pulsating white dwarf stars. A subset of these stars exhibit extreme stability in the period and phase of some of their pulsation modes; a planet can be detected around such a star by searching for periodic variations in the arrival time of these pulsations. We present limits on companions greater than a few Jupiter masses around a sample of 15 white dwarf stars as part of an ongoing survey. One star shows a variation in arrival time consistent with a 2MJ planet in a 4.5 yr orbit. We discuss other possible explanations for the observed signal and conclude that a planet is the most plausible explanation based on the data available.

Abstract Copyright: ∼

Journal keyword(s): Stars: Planetary Systems - Stars: White Dwarfs

Simbad objects: 17

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Number of rows : 17
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 PB 5854 WD* 00 18 36.1282705272 +00 31 51.228446124   17.5   17.7   DA 22 0
2 GALEX J011100.6+001807 WD* 01 11 00.6333109704 +00 18 07.059676176   18.85       DA 31 0
3 V* ZZ Cet WD* 01 36 13.6153974672 -11 20 32.632874601   14.328 14.16 14.4   DA4.0 307 0
4 PB 9102 WD* 02 14 06.7839996384 -08 23 18.434343948   18.5       DA 22 0
5 GD 66 WD* 05 20 38.3165748936 +30 48 23.922603900   15.78 15.56     DA4.1 81 1
6 GALEX J091312.7+403629 WD* 09 13 12.7418690976 +40 36 28.949719176   17.3   18.0   DA 23 0
7 V* RY LMi WD* 09 24 15.2482279632 +35 16 51.401570556   15.72   15.99   DA4 274 0
8 HS 1013+0321 WD* 10 15 48.0227561424 +03 06 48.332424888   15.2   15.6   DA 38 0
9 V* DU Dra WD* 13 52 11.0036780664 +65 24 57.126049128   15.7   15.3   DA4.1 75 0
10 SDSS J135459.89+010819.3 WD* 13 54 59.8838018352 +01 08 19.272650856           DA4 29 0
11 GALEX J135530.9+545404 WD* 13 55 31.0606426224 +54 54 04.509239508   18.2   18.2   DA 19 0
12 V* MY Aps WD* 14 33 07.6366196272 -81 20 14.128475593   13.49 13.35 13.65   DA4.1 152 0
13 GALEX J172428.4+583538 WD* 17 24 28.4197576920 +58 35 38.974423524   17.1   17.4   DA 21 0
14 V* PY Vul WD* 19 37 13.7502269447 +27 43 18.733503670   13.14   12.7   DA4.0 138 0
15 PB 5113 WD* 22 14 58.3726018632 -00 25 11.899431804   18       DA 23 0
16 GD 244 WD* 22 56 46.1531007720 +12 52 50.311741512   16.0   15.6   DA4.2 55 1
17 V* ZZ Psc WD* 23 28 47.6365087803 +05 14 54.235051503   13.217   13.106   DA4.1 536 0

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