2009ApJ...705.1219K

Query : 2009ApJ...705.1219K

2009ApJ...705.1219K - Astrophys. J., 705, 1219-1225 (2009/November-2)

Limits on unresolved planetary companions to white dwarf remnants of 14 intermediate-mass stars.

KILIC M., GOULD A. and KOESTER D.

Abstract (from CDS):

We present Spitzer IRAC photometry of white dwarf remnants of 14 stars with M = 3-5 M☉. We do not detect mid-infrared excess around any of our targets. By demanding a 3σ photometric excess at 4.5 µm for unresolved companions, we rule out planetary mass companions down to 5, 7, or 10 MJ for 13 of our targets based on the Burrows et al. substellar cooling models. Combined with previous IRAC observations of white dwarf remnants of intermediate-mass stars, we rule out ≥10MJ companions around 40 white dwarfs and ≥5MJ companions around 10 white dwarfs.

Abstract Copyright: ∼

Journal keyword(s): infrared: stars - planetary systems - stars: low-mass, brown dwarfs - white dwarfs

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 GD 66 WD* 05 20 38.3165748936 +30 48 23.922603900   15.78 15.56     DA4.1 81 1
2 PG 0852+659 WD* 08 56 28.4837952144 +65 39 46.009575648   15.40 15.38 15.84   DA2.5 24 0
3 GD 304 WD* 10 37 43.4671192536 +48 57 20.753512524   15.5       DA2.4 50 0
4 PG 1038+634 WD* 10 41 57.2390461800 +63 07 01.670817648   15.49 15.3     DA2.0 52 0
5 Ton 556 WD* 10 54 43.3167693576 +27 06 57.039078204   14.04 14.22 14.60 14.43 DA2.1 64 0
6 GD 129 WD* 11 11 20.7218460480 +47 18 26.442135036   15.61 15.39 15.80   DA3.8 31 0
7 Feige 44 WD* 11 32 27.3595272912 +15 17 30.817709700   14.03 14.26 14.5   DA2.8 46 0
8 PG 1201-001 WD* 12 03 47.4251223816 -00 23 10.938711192   15.13   15.6   DA2.4 46 0
9 Ton 1559 WD* 13 09 57.6766028952 +35 09 47.187935136   15.51   15.2   DA4.4 138 0
10 PG 1310+583 WD* 13 12 57.9037281360 +58 05 11.290690392   13.89   14.2   DA4.7 49 0
11 PG 1319+466 WD* 13 21 15.1030233312 +46 23 23.654345892   14.55   14.7   DA3.5 45 0
12 PG 1323-086 HS* 13 25 39.4669501176 -08 49 19.067387484 12.660 13.341 13.481 13.529 13.608 sdB3IHe8 144 1
13 PG 1335+701 WD* 13 36 19.0313336808 +69 49 42.803644836   14.84 15.05 15.42   DA1.6 41 0
14 Ton 214 WD* 14 48 14.0784609192 +28 25 11.643931488     14.71     DA2.1 47 0
15 PG 1515+669 WD* 15 15 52.9057337712 +66 42 42.881800140   15.59       DA4.8 28 0
16 GD 194 WD* 15 52 26.3787120096 +18 10 18.689282184   14.94   15.2   DA3.4 58 0
17 GD 362 WD* 17 31 34.3168718112 +37 05 20.711767812   16.3   16.4   DAZB 200 0
18 V* V391 Peg HS* 22 04 12.1045050096 +26 25 07.819080600   14.41 14.61 15.00   sdB 112 2
19 * alf PsA PM* 22 57 39.04625 -29 37 20.0533 1.31 1.25 1.16 1.11 1.09 A4V 1303 3
20 HD 218396 El* 23 07 28.7157209544 +21 08 03.310767492   6.21 5.953     F0+VkA5mA5 1285 0

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