2022RNAAS...6....8M

Query : 2022RNAAS...6....8M

2022RNAAS...6....8M - Research Notes of the AAS, 6, 8 (2022/January-0)

Resolving the Multiplicity of Exoplanet Host Stars in Gemini/NIRI Data.

MISKOVETZ K., DUPUY T.J., SCHONHUT-STASIK J. and STASSUN K.G.

Abstract (from CDS):

The majority of stars have one or more stellar companions. As exoplanets continue to be discovered, it is crucial to examine planetary systems to identify their stellar companions. By observing a change in proper motion, companions can be detected by the acceleration they induce on their host stars. We selected 701 stars from the Hipparcos-Gaia Catalog of Accelerations (HGCA) that have existing adaptive optics imaging data gathered with Gemini/Near InfraRed Imager (NIRI). Of these, we examined 21 stars known to host planet candidates and reduced their archival NIRI data with Gemini's DRAGONS software. We assessed these systems for companions using the NIRI images as well as Renormalized Unit Weight Error values in Gaia and accelerations in the HGCA. We detected three known visible companions and found two more systems with no visible companions but astrometric measurements indicating likely unresolved companions.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Stellar masses - Visual binary stars - Binary stars - Wide binary stars - Astrometric binary stars

Simbad objects: 23

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Number of rows : 23
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 HD 15082 EB* 02 26 51.0582618096 +37 33 01.736482032   8.41 8.14     kA5hA8mF4 229 1
2 HD 17156 PM* 02 49 44.4871034544 +71 45 11.629235988   8.78 8.16     F9V 195 2
3 * 94 Cet PM* 03 12 46.4365677072 -01 11 45.955808988   5.631 5.070     F8.5V 478 1
4 * eps Eri BY* 03 32 55.8444911587 -09 27 29.739493865 5.19 4.61 3.73 3.00 2.54 K2V 2073 1
5 * eps Tau ** 04 28 37.0002551195 +19 10 49.563140930 5.42 4.54 3.53     G9.5IIICN0.5 628 1
6 HD 34445 PM* 05 17 40.9803494808 +07 21 12.053055060   7.97 7.33     G0 119 1
7 HD 42176 * 06 10 39.3452642664 +30 57 25.713412668   9.23 8.71     F7V 71 1
8 HD 50499 PM* 06 52 02.0241958872 -33 54 56.019365496   7.82 7.20     G0/2V 131 1
9 HD 89744 PM* 10 22 10.5618854376 +41 13 46.309698444   6.25 5.72     F7V 360 1
10 CD-31 9113 PM* 11 35 26.9477670462 -32 32 23.884215079 12.508 11.322 9.813 8.821 7.664 M2V 188 1
11 Ross 905 PM* 11 42 11.0933350978 +26 42 23.650782778   12.06 10.613 10.272 8.24 M3V 750 1
12 HD 102195 PM* 11 45 42.2928676296 +02 49 17.324140440       7.6   K0V 161 1
13 HD 125612 PM* 14 20 53.5176649416 -17 28 53.489705520   8.93 8.32     G3V 147 1
14 HD 130322 PM* 14 47 32.7262287384 -00 16 53.307811560   8.82 8.04     K0V 303 1
15 * 23 Lib PM* 15 13 28.6669233518 -25 18 33.653388418   7.168 6.46 6.43   G6IV-V 332 1
16 * iot Dra V* 15 24 55.7738042889 +58 57 57.837111857 5.68 4.45 3.29 2.51 1.91 K2III 428 1
17 * 14 Her PM* 16 10 24.3156759007 +43 49 03.507406809   7.57   6.1   K0V 482 1
18 HD 147506 * 16 20 36.3576063720 +41 02 53.106772488   9.15 8.69     F8V 199 1
19 HD 168443 PM* 18 20 03.9332862096 -09 35 44.614653900   7.62 6.92     G6V 334 1
20 BD+47 2936 EB* 19 50 50.2472976936 +48 04 51.101390496       8.8   K4V 359 1
21 BD-05 5715 PM* 22 09 40.3443137051 -04 38 26.650757960 13.006 11.868 10.366 9.279 7.877 M3.5V 332 1
22 BD-15 6290 BY* 22 53 16.7325836486 -14 15 49.304052185 12.928 11.749 10.192 9.013 7.462 M3.5V 1106 1
23 HD 218396 El* 23 07 28.7157209544 +21 08 03.310767492   6.21 5.953     F0+VkA5mA5 1285 0

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