Molecular hydrogen column densities (Wakker+, 2006)

Details Molecular hydrogen column densities (Wakker+, 2006) Molecular hydrogen column densities (Wakker+, 2006)

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008ycat..21630282w&link_type=abstract

VizieR On-line Data Catalog: J/ApJS/163/282. Originally published in: 2006ApJS..163..282W

Computer Science

Interstellar Medium

Scientific paper

Measurements of molecular hydrogen (H2) column densiti presented for the first six rotational levels (J=0-5) for 73 extragalactic targets observed with the Far Ultraviolet Spectroscopic Explorer (FUSE). All of these have a final signal-to-noise ratio larger than 10 and are located at Galactic latitude |b|>20{deg}. The individual observations were calibrated with the FUSE calibration pipeline CalFUSE version 2.1 or higher and then carefully aligned in velocity. The final velocity shifts for all the FUSE segments are listed. H2 column densities or limits are determined for the six lowest rotational (J) levels for each HI component in the line of sight, using a curve-of-growth approach at low column densities (<16.5) and Voigt-profile fitting at higher column densities. Detections include 65 measurements of low-velocity H2 in the Galactic disk and lower halo. Eight sight lines yield nondetections for Galactic H2.
(4 data files).

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