activity
19982026
most citedHE 0437-5439 -- an unbound hyper-velocity main-sequence B-type star

191 citations · 1.7k across the 46 of their papers we have counts for

collaborators

48 papers

astro-ph.SR2026

Intermediate-mass runaway and hypervelocity star candidates in DESI DR1

Aakash Bhat, Matti Dorsch, Ulrich Heber +2

Runaway stars ejected from the Galactic disc span a range of velocities, with two extreme regimes of particular interest. Hyper-runaway stars reach velocities approaching the local…

astro-ph.SR2026

A 500 pc volume-limited sample of hot subluminous stars III. The short-period binary population

H. Dawson, M. Dorsch, J. Munday +16

Hot subdwarf stars of spectral types O and B (sdO/B) in binaries form as products of substantial mass loss near the tip of the red giant branch and offer powerful constraints on bi…

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.IM2026

Studying hot evolved stars with ultraviolet spectroscopy

Stephan Geier, Nicole Reindl, Matti Dorsch +7

Hot evolved stars are key objects to reconstruct the various evolutionary pathways of Sun-like stars, to probe binary interactions and the physics of supernovae. They serve as powe…

astro-ph.SR2026

Evidence for neutron capture in heavy-metal hot subdwarfs: Far-UV spectroscopy of EC22536-5304 and LSIV-14 116

M. Dorsch, C. S. Jeffery, J. Deprince +8

Most hot subdwarfs (sdO/B) are low-mass core-helium-burning stars formed through binary interaction. A subgroup of intermediate He-rich sdOBs shows extreme heavy-metal (Z>30) enric…

astro-ph.SR2026★ 3 cited

Hot subdwarf stars from the Hamburg Quasar Survey

Ulrich Heber, Lennard Kufleitner, Matti Dorsch +4

Hot subluminous stars (sdO/B) are evolved low mass stars originating from red giants that lost their envelope almost entirely. The multitude of observed phenomena imply that severa…