activity
19972012
most citedType Ia Supernova Discoveries at z>1 From the Hubble Space Telescope: Evidence for Past Deceleration and Constraints on Dark Energy Evolution

4.3k citations · 4.7k across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.CO2012★ 3 cited

The Growth of the Stellar Seeds of Supermassive Black Holes

Jarrett L. Johnson, Bhaskar Agarwal, Daniel J. Whalen +5

One of the most promising explanations for the origin of the billion solar mass black holes (BHs) inferred to power quasars at redshifts z > 6 is that supermassive stars (SMSs) wit…

astro-ph2006★ 63 cited

Warping and precession in galactic and extragalactic accretion disks

Anderson Caproni, Mario Livio, Zulema Abraham +1

The Bardeen-Petterson general relativistic effect has been suggested as the mechanism responsible for precession in some accretion disk systems. Here we examine separately four mec…

astro-ph2004★ 4.3k cited

Type Ia Supernova Discoveries at z>1 From the Hubble Space Telescope: Evidence for Past Deceleration and Constraints on Dark Energy Evolution

Adam G. Riess, Louis-Gregory Strolger, John Tonry +16

We have discovered 16 Type Ia supernovae (SNe Ia) with the Hubble Space Telescope (HST) and have used them to provide the first conclusive evidence for cosmic deceleration that pre…

astro-ph2000★ 122 cited

Launching of jets and the vertical structure of accretion disks

Gordon I. Ogilvie, Mario Livio

The launching of magnetohydrodynamic outflows from accretion disks is considered. We formulate a model for the local vertical structure of a thin disk threaded by a poloidal magnet…

astro-ph2000★ 10 cited

HST/STIS observations of GRB000301C: CCD imaging and NUV MAMA spectroscopy

A. Smette, A. S. Fruchter, T. R. Gull +24

We present HST/STIS observations of the optical counterpart (OT) of the gamma-ray burster GRB 000301C obtained on 2000 March 6, five days after the burst. CCD clear aperture imagin…

astro-ph1999★ 195 cited

The Progenitors of Type Ia Supernovae

M. Livio

Models for Type Ia Supernovae (SNe Ia) are reviewed. It is shown that there are strong reasons to believe that SNe Ia represent thermonuclear disruptions of C-O white dwarfs, when…