activity
20032026
most citedObservable and ionizing properties of star-forming galaxies with very massive stars and different IMFs

33 citations · 97 across the 7 of their papers we have counts for

collaborators

8 papers

astro-ph.GA2026

Non-LTE atmosphere models of very luminous sources and their applicability to Little Red Dots, quasi-stars, and similar objects

Fabrice Martins, Daniel Schaerer, Rui Marques-Chaves

We investigate whether atmosphere models traditionally used for massive stars with strong winds can produce synthetic spectra morphologically similar to those of Little Red Dots (L…

astro-ph.GA2026

Signatures of Very Massive Stars in the Epoch of Reionization

Rui Marques-Chaves, Fabrice Martins, Daniel Schaerer +2

We present ultra-deep ( hours), rest-frame UV spectroscopy with NIRSpec/JWST of two UV-bright galaxies at , CEERS-1019 and CEERS-1025 ($Z_{\rm neb} \simeq…

astro-ph.SR2025★ 6 cited

Very massive stars at low metallicity: evolution, synthetic spectroscopy, and impact on the integrated light of starbursts

F. Martins, A. Palacios, D. Schaerer +1

We study the spectroscopic appearance of very massive stars and their effect on the integrated light of starbursts at low metallicity (Z). We adopt two frameworks for the mass loss…

astro-ph.GA2025

Spectrophotometry in the integrated light of multiple populations in globular clusters

Vinicius Branco, Ariane Lançon, Paula Coelho +7

There is vast evidence from observations of multiple stellar populations (MPs) in globular clusters (GCs). To explore the issue theoretically, this work considers two subsolar meta…

astro-ph.GA2024★ 33 cited

Observable and ionizing properties of star-forming galaxies with very massive stars and different IMFs

D. Schaerer, J. Guibert, R. Marques-Chaves +1

The presence of very massive stars (VMS, masses M) is now firmly established in the local group, nearby galaxies, and out to cosmological distances. If present, th…

astro-ph.GA2024★ 29 cited

Evidence for Very Massive Stars in extremely UV-bright star-forming galaxies at

A. Upadhyaya, R. Marques-Chaves, D. Schaerer +4

We present a comprehensive analysis of the presence of very massive stars (VMS > ) in the integrated spectra of 13 UV-bright star-forming galaxies at $2.2 \lesssim z…