Li, Feiran Chen, Yu

Here, we present the source data for GotEnzymes, an extensive database with enzyme parameter predictions by AI approaches, which is publicly available at https://metabolicatlas.org/gotenzymes. The files are meant to be used in the pg/input_data directory.

Schaffenroth, Veronika

About 2/3 of all hot subdwarfs are in binaries with either long-periods with FGK-type companions or short-periods with brown dwarf or M-dwarf, or white dwarf companions. With current surveys, the number of known systems increased significantly. We obtain mass and period distributions of both components, and the population membership using their...

Common envelope evolution (CEE) is vital for forming short-orbital-period compact binaries. It covers many objects, such as double compact merging binaries, Type Ia supernovae progenitors, and short-orbital period hot subdwarf binaries. The standard energy description of constraining the CEE must include accurate binding energy and common...

Ma, Xiao-Yu

Hot subdwarf B (sdB) stars are compact, core-helium-burning objects with thin hydrogen envelopes, occupying the extreme horizontal branch (EHB). Their formation is widely attributed to binary interactions—common envelope (CE) ejection or stable Roche-lobe overflow (RLOF) or double WD merger. However, the apparent isolation of up to 30% of sdBs...

Ma, Linhao

Hot subdwarf B (sdB) stars are often found in close binaries, where they experience strong tidal interactions. The dissipation of tidally excited gravity waves alters their rotational evolution throughout the sdB lifetime. While many sdB binaries have well-measured rotational and orbital frequencies, there have been few theoretical efforts to...

Blomberg, Lisa

Recent work has discovered a population of intermediate-mass stripped helium stars in the Magellanic clouds, which are higher-mass (1-5 M⊙) analogs of canonical hot subdwarfs (sdBs). The objects discovered so far are likely to only represent a small and biased fraction of the total population. To characterize the completeness of the known...

Observations of young ≈1 solar mass main-sequence stars in clusters indicate a binary fraction of 30% and a triple fraction of 10%. Moreover, hierarchical triple systems typically boast tighter orbits in the inner binaries than their isolated binary counterparts. As such, triple systems are almost equally as likely as isolated binaries to...

Geier, Stephan

Triple star evolution, although it is quite common among stars in general, has not been studied observationally to that end for sdO/Bs yet. The small number of confirmed triples among those objects might lead to the conclusion, that the impact of triple evolution is negligible. However, we found evidence for a much higher fraction of wide...

In recent years, interest has grown in hot subdwarf stars that originate from intermediate and massive stars because only a few of them are known albeit their numerous prediction. However, observing these stars is quite a challenge because most of them are part of binaries where the mostly Be type companions are outshining them. Hot subdwarfs...

Compact hot subwarf (sdB) binaries with white dwarf (WD) companions and orbital periods ¡ 2 hours are potential supernova Ia progenitors through the double detonation channel. Accretion of helium rich material onto the WD can lead to a detonation of the helium layer which in turn triggers the explosion of the WD in a double-detonation...