320 citations · 2.6k across the 62 of their papers we have counts for
5 papers · 1 filter
The Balmer Absorber Strength Problem of Little Red Dots
Hanpu Liu, Eliot Quataert, Bingjie Wang +2
Little Red Dots (LRDs) commonly show Balmer absorption features. Some observed LRD spectra have weaker absorption in H than in H, in apparent contradiction to atomic physics…
Calcium Triplet Absorption is Common around Little Red Dots
Jenny E. Greene, Hanpu Liu, Raphael E. Hviding +29
We present new evidence for an optically thick atmosphere surrounding Little Red Dots (LRDs) in the form of Ca absorption at rest-frame 8500A, the calcium triplet (CaT). Building o…
Synthetic Spectral Library of Optically Thick Atmospheres for Little Red Dots
Hanpu Liu, Yan-Fei Jiang, Eliot Quataert +3
Little Red Dots (LRDs) challenge conventional models of active galactic nuclei. At rest-optical-to-near-infrared (IR) wavelengths, these compact extragalactic objects show blackbod…
Water absorption confirms cool atmospheres in two little red dots
Bingjie Wang, Joel Leja, Ivo Labbe +35
Little red dots (LRDs) are an abundant population of compact high-redshift sources with red rest-frame optical continua, discovered by the James Webb Space Telescope (JWST). Their…
A gas cloud on its way towards the super-massive black hole in the Galactic Centre
S. Gillessen, R. Genzel, T. K. Fritz +9
Measurements of stellar orbits provide compelling evidence that the compact radio source Sagittarius A* at the Galactic Centre is a black hole four million times the mass of the Su…