3 papers
astro-ph.HE2026
The Role of Scintillation in Detecting HI Absorption in FRB Spectra
Om Gupta, Pawan Kumar, Paz Beniamini +1
The 21-cm absorption line of neutral hydrogen has been a long hypothesized observational feature of the spectra of Fast Radio Bursts (FRBs). The difficulties associated with detect…
astro-ph.GA2025
The "Dark-Matter Dominated" Galaxy Segue 1 Modeled with a Black Hole and no Dark Halo
Nathaniel Lujan, Karl Gebhardt, Richard Anantua +11
The dwarf spheroidal galaxy, Segue 1, is thought to have one of the largest ratios of dark matter to stellar mass. Using orbit-based dynamical models, we model Segue 1, including a…
astro-ph.HE2025
The Cosmic Evolution of Fast Radio Bursts Inferred from the CHIME/FRB Baseband Catalog 1
Om Gupta, Paz Beniamini, Pawan Kumar +1
Redshift and luminosity distributions are essential for understanding the cosmic evolution of extragalactic objects and phenomena, such as galaxies, gamma-ray bursts, and fast radi…