5 papers
Little Red Dots from Ultra-Strongly Self-Interacting Dark Matter
M. Grant Roberts, Lila Braff, Aarna Garg +2
We investigate the possibility that the recently identified population of high-redshift, obscured quasars - known as "Little Red Dots" (LRDs) - originates from early black hole see…
Photometry and Spectroscopy of SN 2024pxl: A Luminosity Link Among Type Iax Supernovae
Mridweeka Singh, Lindsey A. Kwok, Saurabh W. Jha +90
We present extensive ultraviolet to optical photometric and optical to near-infrared (NIR) spectroscopic follow-up observations of the nearby intermediate-luminosity ($M_V = -16.81…
The Clustering of Little Red Dots from Ultra-Strongly Self-Interacting Dark Matter
M. Grant Roberts, Aarna Garg, Tesla Jeltema +1
We predict the effective clustering bias parameter, , at for Little Red Dots (LRDs) seeded by Ultra-Strongly Self-Interacting Dark Matter (uSIDM). From our m…
JWST and Ground-based Observations of the Type Iax Supernovae SN 2024pxl and SN 2024vjm: Evidence for Weak Deflagration Explosions
Lindsey A. Kwok, Mridweeka Singh, Saurabh W. Jha +89
We present panchromatic optical near-infrared (NIR) mid-infrared (MIR) observations of the intermediate-luminosity Type Iax supernova (SN Iax) 2024pxl and the extremely low…
Early formation of supermassive black holes from the collapse of strongly self-interacting dark matter
M. Grant Roberts, Lila Braff, Aarna Garg +3
Evidence for high-redshift supermassive black holes challenges standard scenarios for how such objects form in the early universe. Here, we entertain the possibility that a fractio…