8 papers
Measurements of Variability of Low Mass X-ray Binary Candidates in the Early-Type Galaxy NGC 4697 from Multi-Epoch Chandra X-ray Observations
Gregory R. Sivakoff, Andrés Jord'an, Adrienne M. Juett +2
Multi-epoch Chandra X-ray observations of nearby massive early-type galaxies open up the study of an important regime of low-mass X-ray binary (LMXB) behavior -- long term variabil…
Deep Chandra X-ray Observations of Low Mass X-ray Binary Candidates in the Early-Type Galaxy NGC 4697
Gregory R. Sivakoff, Andrés Jordán, Adrienne M. Juett +2
Chandra X-ray observations routinely resolve tens to hundreds of low-mass X-ray binaries (LMXBs) per galaxy in nearby massive early-type galaxies. These studies have raised importa…
HST Observations of Young Star Clusters in Interacting Galaxies
K. D. Borne, W. C. Keel, P. N. Appleton +3
We present early results from the analysis of HST imaging observations for several pairs of interacting galaxies. We include two cases that were specifically chosen to represent a…
Are There ADAFs in Nearby Giant Elliptical Galaxies?
Martin E. Sulkanen, Joel N. Bregman
Recently it has been suggested that the hard x-ray power-law tails exhibited in the ASCA spectra of several nearby giant elliptical galaxies are caused by low-radiative efficiency…
The Diverse Population of ULIRGs
K. D. Borne, S. Arribas, H. Bushouse +2
We present results from an on-going Hubble Space Telescope (HST) survey of a large sample of ULIRGs (Ultra-Luminous IR Galaxies). New ground-based observations are now being used t…
The Ultra-Luminous IR Galaxy Population
K. D. Borne, H. Bushouse, L. Colina +2
We summarize results from an on-going Hubble Space Telescope (HST) survey of a large sample of ULIRGs (Ultra-Luminous IR Galaxies). New ground-based multi-fiber spectroscopic obser…