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A Sensitive Spectral Survey of Interstellar Features in the Near-UV [3050-3700 Å]

Authors
Type
Published Article
Journal
The Astrophysical Journal Supplement Series
Publisher
American Astronomical Society
Publication Date
Feb 01, 2015
Volume
216
Issue
2
Pages
22–22
Source
SETI Institute
License
Unknown

Abstract

We present a comprehensive and sensitive unbiased survey of interstellar features in the near-UV range (3050–3700 Å). We combined a large number of VLT/UVES archival observations of a sample of highly reddened early-type stars—typical diffuse interstellar band targets—and unreddened standards. We stacked the individual observations to obtain a reddened" superspectrum" in the interstellar rest frame with a signal- to-noise ratio exceeding 1500. We compared this to the analogous geocentric and stellar ...

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