10 papers
JWST's Little Red Dots as collapsed Supermassive Dark Stars
Cosmin Ilie
The nature of the ``Little Red Dots'' (LRDs) is one of the most profound mysteries posed by the JWST data. One promising class of models that can reproduce the observed LRDs spectr…
Supermassive Dark Stars and their remnants as a possible solution to three recent cosmic dawn puzzles
Cosmin Ilie, Jillian Paulin, Andreea Petric +1
The James Webb Space Telescope (JWST) has begun to revolutionize our view of the Cosmos. The discovery of Blue Monsters (i.e., ultra-compact yet very bright high-z galaxies) and th…
Early Formation of Supermassive Black Holes via Dark Star Gravitational Instability
Katherine Freese, George M. Fuller, Sohan Ghodla +4
We show that dark stars, which are dark-matter-powered stars in the early universe, can grow by accretion to masses in the range $\mathscr{O}\left ({10}^4\right )-\mathscr{O}\left…
Neural Network identification of Dark Star Candidates. II. Spectroscopy
Adiba Amira Siddiqa, Sayed Shafaat Mahmud, Cosmin Ilie
Some of the first stars in the Universe might be powered by Dark Matter (DM) annihilations, rather than nuclear fusion. Those objects, i.e. Dark stars (DS), offer a unique window i…
Neural Network identification of Dark Star Candidates. I. Photometry
Sayed Shafaat Mahmud, Adiba Amira Siddiqa, Cosmin Ilie
The formation of the first stars in the universe could be significantly impacted by the effects of Dark Matter (DM). Namely, if DM is in the form of Weakly Interacting Massive Part…
Constraining Asymmetric DM Properties by Black Hole Formation in Neutron Stars and Population III Stars
Jared Diks, Cosmin Ilie
In this work we explore the potential for Neutron Stars (NSs) at the Galactic center and Population~III stars to constrain bosonic Asymmetric Dark Matter (ADM). We demonstrate that…