2009AJ....137..218C

Query : 2009AJ....137..218C

2009AJ....137..218C - Astron. J., 137, 218-225 (2009/January-0)

A distance-limited imaging survey of substellar companions to solar neighborhood stars.

CARSON J.C., HINER K.D., VILLAR G.G., BLASCHAK M.G., RUDOLPH A.L. and STAPELFELDT K.R.

Abstract (from CDS):

We report techniques and results of a Palomar 200 inch (5 m) adaptive optics imaging survey of substellar companions to solar-type stars. The survey consists of Ks coronagraphic observations of 21 FGK dwarfs out to 20 pc (median distance ∼17 pc). At 1'' separation (17 projected AU) from a typical target system, the survey achieves median sensitivities 7 mag fainter than the parent star. In terms of companion mass, this corresponds to sensitivities of 50 MJ(1 Gyr), 70 MJ(solar age), and 75 MJ(10 Gyr), using the evolutionary models of Baraffe and colleagues. Using common proper motion to distinguish companions from field stars, we find that no system shows positive evidence of a previously unknown substellar companion (searchable separation ∼20-250 projected AU at the median target distance).

Abstract Copyright: ∼

Journal keyword(s): methods: data analysis - stars: low-mass, brown dwarfs - surveys - techniques: high angular resolution

Simbad objects: 22

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Number of rows : 22
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 7924 * 01 21 59.1137270904 +76 42 37.038255120   8.018 7.167     K0.5V 145 1
2 HD 25457 TT* 04 02 36.7442719512 -00 16 08.119921152   5.88 5.38     F7V 265 0
3 HD 38858 PM* 05 48 34.9402551240 -04 05 40.721787744 6.71 6.61 5.97     G2V 304 1
4 V* V1386 Ori PM* 06 06 40.4780487600 +15 32 31.578871020 8.016 7.565   6.2   K0V 168 0
5 HD 42581B BD* 06 10 34.80 -21 52 00.0           T6.5 504 0
6 HD 42807 RS* 06 13 12.5028624208 +10 37 37.712484445   7.12   6.0   G5V 235 0
7 HD 55575 PM* 07 15 50.1391766472 +47 14 23.868404124 6.19 6.16   5.2   F9V 295 0
8 HD 65583 PM* 08 00 32.1297283166 +29 12 44.475101673 7.89 7.71 7.00 6.40 5.98 K0V_Fe-1.3 317 0
9 * pi.01 UMa BY* 08 39 11.7046112880 +65 01 15.263122512 6.33 6.26 5.64 5.12 4.79 G0.5V 567 0
10 HD 78366 PM* 09 08 51.0703818408 +33 52 55.986351384   6.53   5.6   G0IV-V 247 0
11 * 20 LMi PM* 10 01 00.6568762394 +31 55 25.213014837   6.05 5.37 4.9   G3VaHdel1 393 0
12 * 47 UMa PM* 10 59 27.9727514012 +40 25 48.920572724   5.66   4.7   G1-VFe-0.5 773 1
13 * 10 CVn PM* 12 44 59.4049642264 +39 16 44.098132297 6.47 6.50 5.95 5.41 5.12 F9V_Fe-0.3 372 0
14 HD 126053 PM* 14 23 15.2847745835 +01 14 29.641269692 6.98 6.90 6.27 5.71 5.39 G1.5V 408 0
15 HD 130948 BY* 14 50 15.8109853464 +23 54 42.634220112   6.456 5.867     F9IV-V 285 0
16 HD 144579 PM* 16 04 56.7936202756 +39 09 23.434584550 7.60 7.40 6.67 6.04 5.63 G8V 280 1
17 * 14 Her PM* 16 10 24.3156759007 +43 49 03.507406809   7.57   6.1   K0V 453 1
18 HD 154345 PM* 17 02 36.4038090379 +47 04 54.764174452   7.50   6.3   G9 270 1
19 HD 182488 PM* 19 23 34.0131683760 +33 13 19.078425912       5.8   K0V 279 1
20 HD 190404 PM* 20 03 52.1269218534 +23 20 26.469023374 8.490 8.080 7.270 6.759 6.314 K1V 237 0
21 HD 193664 PM* 20 17 31.3281112685 +66 51 13.280468798   6.51   5.6   G3V 196 0
22 HD 221354 PM* 23 31 22.2087431778 +59 09 55.867801045   7.57   6.2   K0V 171 0

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