Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-06-24
Astronomy and Astrophysics
Astrophysics
59 pages, 18 figures in AASTeX preprint style; to appear in September issue of ApJS
Scientific paper
10.1086/432886
We have conducted a spectroscopic survey of 78 starbursting infrared-luminous galaxies at redshifts up to z = 0.5. We use moderate-resolution spectroscopy of the NaI D interstellar absorption feature to directly probe the neutral phase of outflowing gas in these galaxies. Over half of our sample are ultraluminous infrared galaxies that are classified as starbursts; the rest have infrared luminosities in the range log(L_IR/L_sun) = 10.2 - 12.0. The sample selection, observations, and data reduction are described here. The absorption-line spectra of each galaxy are presented. We also discuss the theory behind absorption-line fitting in the case of a partially-covered, blended absorption doublet observed at moderate-to-high resolution, a topic neglected in the literature. A detailed analysis of these data is presented in a companion paper.
Rupke David S.
Sanders David B.
Veilleux Sylvain
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