11 papers
Spectroscopic follow-up of compact object binary candidates from Gaia DR3: White dwarfs, neutron stars, black holes, and the parallax zeropoint
Kareem El-Badry, David W. Latham, Hans-Walter Rix +12
Astrometry and radial velocities (RVs) from Gaia DR3 yielded orbits for hundreds of thousands of binary systems, including several samples proposed to contain black holes (BHs), ne…
gr8stars II : judgement day for spectroscopic parameter model systematics
Alix Violet Freckelton, Annelies Mortier, Megan Bedell +18
Many areas of astrophysics, including exoplanetary studies, rely on precise and accurate stellar parameters. This demands that uncertainties on these parameters truly reflect all b…
Atmospheric collapse and re-inflation through impacts for terrestrial planets around M dwarfs
Prune C. August, Robin Wordsworth, Mikayla Huffman +2
Detection of an atmosphere around a terrestrial exoplanet will be a major milestone in the field, but our observational capacities are biased towards to tidally locked, close-in pl…
Maximizing the sensitivity of ELT to habitable worlds with a space-based starshade
Markus Janson, Enric Palle, Thomas Henning +3
The ELT will provide groundbreaking science across a wide range of areas, including small habitable-zone exoplanets; however, true Earth analogs in the habitable zones of Sun-like…
JWST NIRSpec finds no clear signs of an atmosphere on TOI-1685 b
Chloe E. Fisher, Matthew J. Hooton, Amélie Gressier +21
Determining the prevalence of atmospheres on terrestrial planets is a core objective in exoplanetary science. While M dwarf systems offer a promising opportunity, conclusive observ…
Is ozone a reliable proxy for molecular oxygen? III. The impact of CH on the O-O relationship for Earth-like atmospheres
Thea Kozakis, João M. Mendonça, Lars A. Buchhave +1
In the search for life in the Universe, molecular oxygen (O) combined with a reducing species, such as methane (CH), is considered a promising disequilibrium biosignature.…