activity
20242026
collaborators

10 papers

astro-ph.SR2026

XP-TEAL: Gaia XP Tool for Emission and Absorption Lines II. Gaia-HELIX catalogue of H emitters in Gaia BP/RP spectra

S. Malhotra, M. Weiler, F. Anders +9

Context: With Gaia's third Data Release (DR3), low-resolution BP/RP (XP) spectra became available for more than 219 million sources. In previous work, we developed a fast method fo…

astro-ph.GA2026

The high-altitude, inner-disc, and chemically peculiar open cluster UBC 1052

Judit Donada, Laia Casamiquela, Friedrich Anders +8

Out of all the discovered open clusters (OCs) that are located in the inner part of the Galaxy, only a small fraction has been observed with high-resolution spectroscopy. An intrig…

astro-ph.EP2026

Astrometric view of companions in the inner dust cavities of protoplanetary disks

Miguel Vioque, Richard A. Booth, Enrico Ragusa +16

Protoplanetary disks with inner dust cavities (often referred to as "transition disks") are potential signposts of planet formation. We use Gaia astrometry to search for planetary…

astro-ph.GA2026

The selection function of the Gaia DR3 open cluster census

Emily L. Hunt, Tristan Cantat-Gaudin, Friedrich Anders +4

Open clusters are among the most useful and widespread tracers of Galactic structure. The completeness of the Galactic open cluster census, however, remains poorly understood. For…

astro-ph.GA2025

Stellar masses and mass ratios for Gaia open cluster members

Sagar Malhotra, Alfred Castro-Ginard, Friedrich Anders +7

Context: Unresolved binaries in star clusters can bias stellar and cluster mass estimates, making their proper treatment essential for studying cluster dynamics and evolution. Aims…

astro-ph.GA2025

GaiaUnlimited: The old stellar disc of the Milky Way as traced by the Red Clump

Shourya Khanna, Jie Yu, Ronald Drimmel +9

We present an exploration of the Milky Way's structural parameters using an all-sky sample of RC giants to map the stellar density from the Galactic disc beyond 3 kpc. These evolve…