activity
20052015
most citedAn extremely luminous panchromatic outburst from the nucleus of a distant galaxy

363 citations · 814 across the 7 of their papers we have counts for

collaborators

7 papers

astro-ph.SR2015★ 2 cited

Supernova 2014J at M82: II. Direct Analysis of Spectra Obtained with Isaac Newton and William Herschel Telescopes

Patrick Vallely, M. E. Moreno-Raya, E. Baron +19

We analyze a time series of optical spectra of SN~2014J from almost two weeks prior to maximum to nearly four months after maximum. We perform our analysis using the SYNOW code, wh…

astro-ph.HE2013★ 293 cited

A new population of ultra-long duration gamma-ray bursts

A. J. Levan, N. R. Tanvir, R. L. C. Starling +38

We present comprehensive multiwavelength observations of three gamma-ray bursts (GRBs) with durations of several thousand seconds. We demonstrate that these events are extragalacti…

astro-ph.CO2012★ 27 cited

Fundamentals of the Dwarf Fundamental Plane

Marshall L. McCall, O. Vaduvescu, F. Pozo Nunez +5

Star-forming dwarfs are studied to elucidate the physical underpinnings of their fundamental plane. It is confirmed that residuals in the Tully-Fisher relation are correlated with…

astro-ph.CO2011★ 8 cited

Searching for star-forming galaxies in the Fornax and Hydra clusters

O. Vaduvescu, C. Kehrig, J. M. Vilchez +1

The formation and evolution of dwarf galaxies is relatively difficult to understand because of their faint emission in all regimes that require large aperture telescopes. We intend…

astro-ph.HE2011★ 363 cited

An extremely luminous panchromatic outburst from the nucleus of a distant galaxy

A. J. Levan, N. R. Tanvir, S. B. Cenko +58

Variable X-ray and gamma-ray emission is characteristic of the most extreme physical processes in the Universe, and studying the sources of these energetic photons has been a major…

astro-ph.CO2010★ 87 cited

A tale of two GRB-SNe at a common redshift of z = 0.54

Z. Cano, D. Bersier, C. Guidorzi +71

We present ground-based and HST optical observations of the optical transients (OTs) of long-duration Gamma Ray Bursts (GRBs) 060729 and 090618, both at a redshift of z = 0.54. For…

astro-ph2005★ 34 cited

Infrared Properties of Star Forming Dwarf Galaxies: Blue Compact Dwarfs in the Virgo Cluster

O. Vaduvescu, M. G. Richer, M. L. McCall

A sample of 16 blue compact dwarf galaxies (BCDs) in the Virgo Cluster has been imaged in the near-infrared (NIR) in and on the 2.1m telescope at OAN-SPM in Mexico. Isoph…