3.5k citations · 14.1k across the 170 of their papers we have counts for
5 papers · 1 filter
New Clues to the Evolution of Dwarf Carbon Stars From Their Variability and X-ray Emission
Benjamin R. Roulston, Paul J. Green, Rodolfo Montez +6
As main-sequence stars with CO, dwarf carbon (dC) stars are never born alone but inherit carbon-enriched material from a former asymptotic giant branch (AGB) companion. In contr…
MCMC-based Voigt Profile fitting to a Mini-BAL System in the Quasar UM675
Dai Ishita, Toru Misawa, Daisuke Itoh +2
We introduce a Bayesian approach coupled with a Markov Chain Monte Carlo (MCMC) method and the maximum likelihood statistic for fitting the profiles of narrow absorption lines (NAL…
The Search for Binary Supermassive Black Holes Amongst Quasars with Offset Broad Lines Using the Very Long Baseline Array
Peter Breiding, Sarah Burke-Spolaor, Michael Eracleous +4
In several previous studies, quasars exhibiting broad emission lines with >1000 km/s velocity offsets with respect to the host galaxy rest frame have been discovered. One leading h…
Probing the disk-corona systems and broad line regions of changing-look quasars with X-ray and optical observations
Xiangyu Jin, John J. Ruan, Daryl Haggard +8
"Changing-look" quasars are a new class of highly variable active galactic nuclei that have changed their spectral type over surprisingly short timescales of just a few years. The…
The Wolf-Rayet + Black Hole Binary NGC 300 X-1: What is the Mass of the Black Hole?
Breanna A. Binder, Janelle M. Sy, Michael Eracleous +6
We present new X-ray and UV observations of the Wolf-Rayet + black hole binary system NGC 300 X-1 with the Chandra X-ray Observatory and the Hubble Space Telescope Cosmic Origins S…