activity
20232025
most citedDiscovery of a dormant 33 solar-mass black hole in pre-release Gaia astrometry

129 citations · 215 across the 10 of their papers we have counts for

collaborators
Showing astro-ph.SRShow all

5 papers · 1 filter

astro-ph.SR2025

Abundances of P, S, and K in 58 bulge spheroid stars from APOGEE

B. Barbuy, H. Ernandes, A. C. S. Friaça +25

We have previously studied several elements in 58 selected bulge spheroid stars, based on spectral lines in the H-band. We now derive the abundances of the less-studied elements ph…

astro-ph.SR2024

Abundances of iron-peak elements in 58 bulge spheroid stars from APOGEE

B. Barbuy, A. C. S. Friaça, H. Ernandes +22

Stars presently identified in the bulge spheroid are probably very old, and their abundances can be interpreted as due to the fast chemical enrichment of the early Galactic bulge.…

astro-ph.SR2024★ 32 cited

Transferring spectroscopic stellar labels to 217 million Gaia DR3 XP stars with SHBoost

A. Khalatyan, F. Anders, C. Chiappini +14

In this paper, we explore the feasibility of using machine learning regression as a method of extracting basic stellar parameters and line-of-sight extinctions from spectro-photome…

astro-ph.SR2023★ 16 cited

Gaia Focused Product Release: Sources from Service Interface Function image analysis -- Half a million new sources in omega Centauri

Gaia Collaboration, K. Weingrill, A. Mints +400

Gaia's readout window strategy is challenged by very dense fields in the sky. Therefore, in addition to standard Gaia observations, full Sky Mapper (SM) images were recorded for ni…

astro-ph.SR2023

Gaia Focused Product Release: Radial velocity time series of long-period variables

Gaia Collaboration, M. Trabucchi, N. Mowlavi +403

The third Gaia Data Release (DR3) provided photometric time series of more than 2 million long-period variable (LPV) candidates. Anticipating the publication of full radial-velocit…