2023RNAAS...7..264A

Query : 2023RNAAS...7..264A

2023RNAAS...7..264A - Research Notes of the AAS, 7, 264 (2023/December-0)

HD 110067 is a Wide Hierarchical Triple System.

APPS K. and LUQUE R.

Abstract (from CDS):

We report that HD 110067, the recently announced host star of a resonant sextuplet of transiting sub-Neptunes, is not a single star as claimed in the discovery paper, but a wide hierarchical triple. The K0 V planet hosting star (V = 8.4 mag, d = 32 pc) has a companion at a wide projected separation of 13,400 au. This companion, namely HD 110106, is a slightly fainter (V = 8.8 mag) K3 V type 8 yr period double-lined spectroscopic binary. The secondary in this spectroscopic binary is contributing a significant amount of flux and has a measured high mass ratio.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Exoplanets - Mini Neptunes - Orbital resonances - Planet hosting stars - Trinary stars

Simbad objects: 4

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Number of rows : 4
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 110067 PM* 12 39 21.5036859792 +20 01 40.035976644   9.22 8.43     K0V 54 0
2 HD 110106 SB* 12 39 37.0719508296 +19 55 46.924202496   9.75 8.80     K3V 17 0
3 NAME Proxima Centauri PM* 14 29 42.9461331854 -62 40 46.164680672 14.21 12.95 11.13 9.45 7.41 M5.5Ve 1483 0
4 * alf Cen ** 14 39 36.50 -60 50 02.3   0.4 -0.1     G2V+K1V 1031 0

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