activity
20032025
most citedStellar collisions in globular clusters: Constraints on the initial mass function of the first generation of stars

8 citations · 15 across the 6 of their papers we have counts for

collaborators

6 papers

astro-ph.GA2025

Abundance anomalies in low mass field mergers as evidence of a merger origin for the second generation stars in globular clusters

Valery Kravtsov, Sami Dib, Francisco A. Calderon

The canonical formation of second-generation (G2) stars in globular clusters (GCs) from gas enriched and ejected by G1 (primordial) polluters faces substantial challenges, i.e. (i)…

astro-ph.GA2024★ 5 cited

Assessing the accuracy of the star formation rate measurements by direct star count in molecular clouds

Sami Dib, Jian Wen Zhou, Sébastien Comerón +8

Star formation estimates based on the counting of YSOs is commonly applied to nearby star-forming regions in the Galaxy. With this method, the SFRs are measured using the counts of…

astro-ph.GA2023

The merger of hard binaries in globular clusters as the primary channel for the formation of second generation stars

Valery Kravtsov, Sami Dib, Francisco A. Calderon

We have recently presented observational evidence which suggests that the origin of the second generation (G2) stars in globular clusters (GCs) is due to the binary-mediated collis…

astro-ph.GA2022★ 8 cited

Stellar collisions in globular clusters: Constraints on the initial mass function of the first generation of stars

Sami Dib, Valery V. Kravtsov, Hosein Haghi +2

Globular clusters display an anticorrelation between the fraction of the first generation of stars () and the slope of the present-day mass function of th…

astro-ph.GA2013★ 2 cited

Unexpected radial trend of the iron abundance in a sample of monometallic Galactic globular clusters

Valery V. Kravtsov

We study the relationship between the iron abundance (IA) in red giant branch (RGB) stars and their radial distribution (RD) in Galactic globular clusters (GCs). We relied on publi…

astro-ph2003

Self-Induced Formaton of Metal-Rich Globulars in Bulges?

Valery V. Kravtsov

Taken together, key latest observations assume that (i) old metal-rich globular cluster populations (MRGCPs) in bulges were able to form due to essentially increased, self(internal…