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20092026
most citedThe fastest unbound star in our Galaxy ejected by a thermonuclear supernova

132 citations · 1.1k across the 41 of their papers we have counts for

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astro-ph.SR2026

Toward 3D orbits of wide sdO/B binaries I. Six composite systems spatially resolved with VLTI/GRAVITY

K. Deshmukh, S. Geier, H. Sana +7

Hot subdwarf stars (sdO/Bs) are widely considered to be products of binary evolution. A significant fraction of them are found in long-period or wide binaries ( d) with main…

astro-ph.SR2026

The massive hot subdwarf binary LAMOST J065816.72+094343.1

F. Mattig, B. N. Barlow, D. Liu +9

Massive short-period binaries involving hot subdwarf stars (sdO/Bs) are rare but important to constraining pathways for binary star evolution. Moreover, some of the most promising…

astro-ph.SR2024★ 11 cited

A spectroscopic and kinematic survey of fast hot subdwarfs

S. Geier, U. Heber, A. Irrgang +19

Hot subdwarfs (sdO/B) are the stripped helium cores of red giants formed by binary interactions. Close hot subdwarf binaries with massive white dwarf companions have been proposed…

astro-ph.SR2024

A 500 pc volume-limited sample of hot subluminous stars I. Space density, scale height, and population properties

H. Dawson, S. Geier, U. Heber +25

We present the first volume-limited sample of spectroscopically confirmed hot subluminous stars out to 500 pc, defined using the accurate parallax measurements from the {\em Gaia}…

astro-ph.SR2023★ 21 cited

Hot subdwarfs in close binaries observed from space II: Analysis of the light curves

V. Schaffenroth, B. N. Barlow, I. Pelisoli +2

Hot subdwarfs in close binaries with either M dwarf, brown dwarf or white dwarf companions show unique light variations. In hot subdwarf binaries with M dwarf or brown dwarf compan…

astro-ph.SR2022★ 58 cited

Hot subdwarfs in close binaries observed from space I: orbital, atmospheric, and absolute parameters and the nature of their companions

V. Schaffenroth, I. Pelisoli, B. N. Barlow +2

About a third of the hot subdwarfs of spectral type B, which are mostly core-helium burning objects on the extreme horizontal branch, are found in close binaries with cool, low-mas…