Yearslong time series of high-precision brightness measurements have been assembled for
thousands of stars with telescopes operating in space. Such data have allowed astronomers …

The creation of carbon and oxygen in our Universe is one of the forefront questions in
nuclear astrophysics. The determination of the abundance of these elements is key to our …

We improve the current upper bound on the axion-photon coupling derived from stellar
evolution using the R 2 parameter, the ratio of stellar populations on the Asymptotic Giant …

We update the capabilities of the software instrument Modules for Experiments in Stellar
Astrophysics (MESA) and enhance its ease of use and availability. Our new approach to …

Black hole binary systems with companion stars are typically found via their x-ray emission,
generated by interaction and accretion. Noninteracting binaries are expected to be plentiful …

We present the initial–final mass relation (IFMR) based on the self-consistent analysis of
Sirius B and 79 white dwarfs from 13 star clusters. We have also acquired additional signal …

We update the capabilities of the open-knowledge software instrument Modules for
Experiments in Stellar Astrophysics (MESA). RSP is a new functionality in MESAstar that …

How quasars powered by supermassive black holes formed less than a billion years after
the Big Bang is still one of the outstanding problems in astrophysics, 20 years after their …

White dwarfs represent the last stage of evolution of stars with mass less than about eight
times that of the Sun and, like other stars, are often found in binaries,. If the orbital period of …

The majority of massive stars live in binary or multiple systems and will interact with a
companion during their lifetimes, which helps to explain the observed diversity of core …