358 citations · 2.5k across the 40 of their papers we have counts for
39 papers
A high molecular fraction in a sub-damped absorber at z=0.56
Neil H. M. Crighton, Jill Bechtold, Robert F. Carswell +8
Measuring rest-frame ultraviolet rotational transitions from the Lyman and Werner bands in absorption against a bright background continuum is one of the few ways to directly measu…
The Chandra Multi-Wavelength Project: Optical Spectroscopy and the Broadband Spectral Energy Distributions of X-ray Selected AGN
Markos Trichas, Paul J. Green, John D. Silverman +20
From optical spectroscopy of X-ray sources observed as part of ChaMP, we present redshifts and classifications for a total of 1569 Chandra sources from our targeted spectroscopic f…
Lyman-Alpha Absorption in the Quasar Triplet Q0107-025A, Q0107-025B, and Q0107-0232: Data Calibration and Line Selection
C. E. Petry, C. D. Impey, J. L. Fenton +1
We present spectroscopic observations for quasars Q0107-025A, Q0107-025B, and Q0107-0232. For the first time, all data obtained with the Hubble Space Telescope's GHRS and FOS for t…
HS 0837+4717 -- a metal-deficient blue compact galaxy with large nitrogen excess
Simon Pustilnik, Alexei Kniazev, Alexander Pramskij +5
(Abridged) We present the results of high S/N long-slit spectroscopy with the Multiple Mirror and the SAO 6-m telescopes, optical imaging with the Wise 1-m telescope and HI observa…
Serendipity and the SDSS: Discovery of the Largest Known Planetary Nebula on the Sky
Paul C Hewett, Michael J Irwin, Evan D Skillman +4
Investigation of spectra from the Sloan Digital Sky Survey reveals the presence of a region of ionized gas of >2 degrees diameter centered approximately at alpha = 10^h 37^m delta…
Optical Spectropolarimetry of Quasi-Stellar Objects Discovered by the Two-Micron All Sky Survey
Paul S. Smith, Gary D. Schmidt, Dean C. Hines +1
Highly polarized QSOs discovered in the Two-Micron All Sky Survey (2MASS) have been observed to determine the source(s) of optical polarization in this near-infrared color-selected…