11 papers
Little Red Dots at z~2 in EIGER reveal a gentle decline with respect to their peak number density at z~5
Shrriya Kapoor, Jorryt Matthee, Alberto Torralba +10
We report the discovery of a sample of little red dots (LRDs) at identified from deep JWST/NIRCam imaging and wide-field slitless spectroscopy over arcmin f…
A Black Hole Star at Cosmic Noon: Extreme Balmer break, photospheric continuum, and broad absorption by thick winds in a Little Red Dot at z=1.7
Alberto Torralba, Jorryt Matthee, Andrea Weibel +12
Recent studies at high redshift have revealed an enigmatic class of Little Red Dots (LRDs) with extreme Balmer breaks, stronger than in any stellar atmosphere. However, it is uncle…
The quasi-star model for Little Red Dots: potential and challenges
Fabrizio Gentile, Mauro Giavalisco, Emanuele Daddi +25
(Abridged) Little Red Dots (LRDs) are a class of sources discovered by JWST observationally defined by a "V-shaped" rest-frame UV-Optical SED, a compact or unresolved morphology, a…
A new sample of Little Red Dots at in DESI DR1: Broad Balmer lines, low ionization spectrum and no variability
Kevin Park, Alberto Torralba, Jorryt Matthee +4
JWST has unveiled an abundant population of compact broad-line emitters largely at , the Little Red Dots (LRDs), which might represent a previously unprobed supermassive…
Using Ly Transmitted Spectrum to Probe IGM Transmission and Identify Ionized Structures in Cosmic Reionization
Weida Hu, Casey Papovich, Lu Shen +16
We present a study of intergalactic medium (IGM) transmission at using high-signal-to-noise JWST/NIRSpec prism spectroscopy of 143 galaxies at from the CAPE…
JWST Reveals Two Overmassive Black Hole Candidates in Dwarf Galaxies at z 0.7: Pushing Black Hole Searches into the Dwarf-Galaxy Regime
E. Iani, P. Rinaldi, A. Torralba +35
We report the discovery and characterization of two compact galaxies, Pelias and Neleus, at z ~ 0.71 and z ~ 0.75, identified in MACS J0416.1-2403 and GOODS-North. Both exhibit unu…