SIMBAD references

2024RNAAS...8...42W - Research Notes of the AAS, 8, 42 (2024/February-0)

Hidden Companions to Intermediate-mass Stars. XV. Discovery of a 1.2M⊙, 8.4 au Companion to the δ Scuti star HIP 41375 = 2 Hydrae.

WAISBERG I., KLEIN Y. and KATZ B.

Abstract (from CDS):

2 Hydrae is a nearby MAa = 1.66M⊙δ Scuti star with strong astrometric evidence for a close companion in addition to its known MB = 0.20M⊙ M dwarf companion at 530 au. Here we report on a VLTI/GRAVITY near-infrared interferometric observation that reveals the close companion to be a MAb = 1.18M⊙ star at a projected separation ρ = 168 mas ↔ 8.4 au. This triple system is a potential progenitor for a double white dwarf binary under the dynamical influence of an outer M dwarf companion with a low enough hierarchy for potentially interesting dynamical effects.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Multiple stars - A stars - Delta Scuti variable stars - Optical interferometry

Simbad objects: 2

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2024RNAAS...8...42W and select 'bookmark this link' or equivalent in the popup menu