MESA models show residual hydrogen envelope mass sets effective temperature on the horizontal branch, with maximum values of 0.05-0.30 solar masses to avoid later thermally pulsing AGB evolution, plus explanations for blue hook stars and puffed-up pre-HB configurations.
The population of hot subdwarf stars studied with Gaia I. The catalogue of known hot subdwarf stars
2 Pith papers cite this work. Polarity classification is still indexing.
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Pith papers citing it
abstract
In preparation for the upcoming all-sky data releases of the Gaia mission we compiled a catalogue of known hot subdwarf stars and candidates drawn from the literature and yet unpublished databases. The catalogue contains 5613 unique sources and provides multi-band photometry from the ultraviolet to the far infrared, ground based proper motions, classifications based on spectroscopy and colours, published atmospheric parameters, radial velocities and light curve variability information. Using several different techniques we removed outliers and misclassified objects. By matching this catalogue with astrometric and photometric data from the Gaia mission, we will develop selection criteria to construct a homogeneous, magnitude-limited all-sky catalogue of hot subdwarf stars based on Gaia data.
years
2026 2verdicts
UNVERDICTED 2representative citing papers
New spectroscopy rules out PG 0931+691 as ionizer of WPS 46 and associates the source with an IVC ionized by shocks.
citing papers explorer
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The origin of WHAM Point Source~46
New spectroscopy rules out PG 0931+691 as ionizer of WPS 46 and associates the source with an IVC ionized by shocks.