2009ApJ...703..671S

Query : 2009ApJ...703..671S

2009ApJ...703..671S - Astrophys. J., 703, 671-674 (2009/September-3)

A substellar companion in a 1.3 yr nearly circular orbit of HD 16760.

SATO B., FISCHER D.A., IDA S., HARAKAWA H., OMIYA M., JOHNSON J.A., MARCY G.W., TOYOTA E., HORI Y., ISAACSON H., HOWARD A.W. and PEEK K.M.G.

Abstract (from CDS):

We report the detection of a substellar companion orbiting the G5 dwarf HD 16760 from the N2K sample. Precise Doppler measurements of the star from Subaru and Keck revealed a Keplerian velocity variation with a period of 466.47±0.35 d, a semiamplitude of 407.71±0.84 m/s, and an eccentricity of 0.084±0.003. Adopting a stellar mass of 0.78±0.05 M☉, we obtain a minimum mass for the companion of 13.13±0.56 MJUP, which is close to the planet/brown-dwarf transition, and the semimajor axis of 1.084±0.023 AU. The nearly circular orbit despite the large mass and intermediate orbital period makes this companion unique among known substellar companions.

Abstract Copyright: ∼

Journal keyword(s): planetary systems - stars: individual: HD 16760

Simbad objects: 25

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Number of rows : 25
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 HD 5319 * 00 55 01.3998443472 +00 47 22.401372408   9.03 8.05     K0III 103 1
2 HD 11506 PM* 01 52 50.5344163920 -19 30 25.108242192   8.11 7.51     G0V 86 1
3 HD 16760C LM* 02 42 21.3134499936 +38 37 07.231908072           ~ 23 1
4 HD 16760 ** 02 42 21.3134499936 +38 37 07.231908072   9.45 8.76     G2V 88 1
5 HD 17156 PM* 02 49 44.4871034544 +71 45 11.629235988   8.78 8.16     F9V 176 2
6 BD+20 518 PM* 03 11 14.2301712744 +21 05 50.493993288   9.26 8.50     G6V 114 1
7 HD 33283 PM* 05 08 01.0123084872 -26 47 50.894113344 8.870 8.640 8.040     G3/5V 95 1
8 HD 73534 PM* 08 39 15.8031501864 +12 57 37.346867496   9.21 8.24     G5 58 1
9 HD 75898 PM* 08 53 50.8052389824 +33 03 24.520566888   8.67 8.03 10.6   G0 79 1
10 HD 86081 PM* 09 56 05.9184616896 -03 48 30.325874184   9.34 8.70     G1V 84 1
11 HD 88133 PM* 10 10 07.6764870792 +18 11 12.728406552   8.88   7.5   G8V 115 1
12 HD 109749 PM* 12 37 16.3785050928 -40 48 43.626163320   8.864 8.208 8.96   G3V 99 1
13 HD 125612 PM* 14 20 53.5176649416 -17 28 53.489705520   8.93 8.32     G3V 124 1
14 HD 149026 PM* 16 30 29.6185771608 +38 20 50.308980864   8.75 8.14     G0IV 237 1
15 HD 149143 PM* 16 32 51.0507175368 +02 05 05.380313604   8.56 7.89     G3V 103 1
16 HD 154672 PM* 17 10 04.9107827400 -56 26 57.370706592   8.91 8.20     G3IV 64 1
17 HD 168443c Pl 18 20 03.9332862096 -09 35 44.614653900           ~ 93 1
18 HD 168443b Pl 18 20 03.9332862096 -09 35 44.614653900           ~ 97 1
19 HD 168443 PM* 18 20 03.9332862096 -09 35 44.614653900   7.62 6.92     G6V 311 1
20 HD 170469 PM* 18 29 10.9810932744 +11 41 43.803283884   8.86 8.18     G5 90 1
21 HD 179079 PM* 19 11 09.8285843016 -02 38 18.188074644   8.66 7.96     G5IV 76 1
22 CoRoT-3b Pl 19 28 13.2642131544 +00 07 18.613986132           ~ 137 1
23 HD 231701 PM* 19 32 04.1609196504 +16 28 27.443142588   9.486 8.97     F8V 62 1
24 HD 205732 * 21 36 08.5413030744 +41 55 57.055772424   8.66 7.81     G5 14 0
25 HD 224693 PM* 23 59 53.8317247296 -22 25 41.216257992   8.87 8.22     G2V 89 1

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