202 citations · 2.2k across the 37 of their papers we have counts for
37 papers
The Second Nucleus of NGC 7727: Direct Evidence for the Formation and Evolution of an Ultracompact Dwarf Galaxy
Francois Schweizer, Patrick Seitzer, Bradley C. Whitmore +2
We present new observations of the late-stage merger galaxy NGC 7727, including HST/WFPC2 images and long-slit spectra obtained with the Clay telescope. NGC 7727 is relatively lumi…
The [O III] Nebula of the Merger Remnant NGC 7252: A Likely Faint Ionization Echo
Francois Schweizer, Patrick Seitzer, Daniel D. Kelson +2
We present images and spectra of a ~10 kpc-sized emission-line nebulosity discovered in the prototypical merger remnant NGC 7252 and dubbed the `[O III] nebula' because of its domi…
Outflow vs. Infall in Spiral Galaxies: Metal Absorption in the Halo of NGC 891
Joel N. Bregman, Eric D. Miller, Patrick Seitzer +2
Gas accreting onto a galaxy will be of low metallicity while halo gas due to a galactic fountain will be of near-solar metallicity. We test these predictions by measuring the metal…
Ultraviolet Spectra of ULX Systems
Joel N. Bregman, Julie N. Felberg, Patrick J. Seitzer +2
To further understand the nature of the optical counterparts associated with Ultraluminous X-Ray sources (ULXs), we obtained far ultraviolet spectra of the reported counterparts to…
First Results from the NOAO Survey of the Outer Limits of the Magellanic Clouds
Abhijit Saha, Edward W. Olszewski, Brian Brondel +11
[abridged] We describe the first results from the NOAO Outer Limits Survey. The survey consists of deep images of 55 0.6x0.6 degree fields at distances up to 20 degrees from the LM…
A 500 Parsec Halo Surrounding the Galactic Globular NGC 1851
Edward W. Olszewski, Abhijit Saha, Patricia Knezek +3
Using imaging that shows four magnitudes of main sequence stars, we have discovered that the Galactic globular cluster NGC 1851 is surrounded by a halo that is visible from the tid…