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

10 papers

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.GA2025★ 1 cited

Open clusters in the outer disc studied with MEGARA@GTC Auner 1 and Berkeley 102

J. Carbajo-Hijarrubia, R. Carrera, F. Anders +4

Open clusters offer crucial insights into stellar nucleosynthesis and the chemical evolution of the Galactic disc, as their ages and distances can be determined with higher accurac…

astro-ph.GA2024★ 6 cited

New stellar age estimates using SPInS based on Gaia DR3 photometry and LAMOST DR8 abundances

L. Casamiquela, D. R. Reese, Y. Lebreton +8

Reliable stellar age estimates are fundamental for testing several problems in modern astrophysics, in particular since they set the time scales of Galactic dynamical and chemical…

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.GA2024★ 31 cited

OCCASO V. Chemical-abundance trends with Galactocentric distance and age

J. Carbajo-Hijarrubia, L. Casamiquela, R. Carrera +12

Context. Open clusters provide valuable information on stellar nucleosynthesis and the chemical evolution of the Galactic disc, as their age and distances can be measured more prec…

astro-ph.GA2024★ 129 cited

Discovery of a dormant 33 solar-mass black hole in pre-release Gaia astrometry

Gaia Collaboration, P. Panuzzo, T. Mazeh +412

Gravitational waves from black-hole merging events have revealed a population of extra-galactic BHs residing in short-period binaries with masses that are higher than expected base…

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…

astro-ph.GA2023

Roman Early-Definition Astrophysics Survey Opportunity: Galactic Roman Infrared Plane Survey (GRIPS)

Roberta Paladini, Catherine Zucker, Robert Benjamin +67

A wide-field near-infrared survey of the Galactic disk and bulge/bar(s) is supported by a large representation of the community of Galactic astronomers. The combination of sensitiv…