398 citations · 3.9k across the 69 of their papers we have counts for
Showing astro-ph.COShow all
2 papers · 1 filter
astro-ph.CO2011★ 30 cited
Re-ionizing the Universe without Stars
Michael A. Dopita, Lawrence M. Krauss, Ralph S. Sutherland +2
Recent observations show that the measured rates of star formation in the early universe are insufficient to produce re-ionization, and therefore, another source of ionizing photon…
astro-ph.CO2009★ 234 cited
A Larger Estimate of the Entropy of the Universe
Chas A. Egan, Charles H. Lineweaver
Using recent measurements of the supermassive black hole (SMBH) mass function, we find that SMBHs are the largest contributor to the entropy of the observable universe, contributin…