2002A&A...381..566W


C.D.S. - SIMBAD4 rel 1.7 - 2021.02.25CET16:07:43

2002A&A...381..566W - Astronomy and Astrophysics, volume 381, 566-570 (2002/1-2)

Molecular hydrogen gas at high-velocity associated with the Monoceros Loop SNR.

WELSH B.Y., RACHFORD B.L. and TUMLINSON J.

Abstract (from CDS):

We present Far Ultraviolet Spectroscopic Explorer (FUSE) observations of molecular hydrogen (H2) gas observed at a high-velocity of VLSR=+66km/s towards the star HD 47240 which lies just behind the Monoceros Loop Supernova Remnant at a distance of ∼1800pc. These absorption features have been detected in six lines of the J=3 rotational level, with an equivalent molecular hydrogen column density of logN(H2)=14.10±0.12cm–2. The observed data are best fit with a single excitation temperature, Tex of ∼1000K, which when comparised to temperatures generally found for low J-levels is unusually high for interstellar H2. The molecular fraction in this HV cloud has a very low value of logf=-4.5±0.25, which is similar to that found for HV clouds in the galactic halo.

Abstract Copyright:

Journal keyword(s): ISM: supernova remnants - ISM: molecules

Simbad objects: 2

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Number of rows : 2

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 HD 47240 Pu* 06 37 52.7036331811 +04 57 24.007346108 5.65 6.35 6.20 5.98 5.87 B1Ib 150 0
2 NAME MONOCEROS NEB SNR 06 38 43 +06 30.2           ~ 222 0

    Equat.    Gal    SGal    Ecl

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2021.02.25-16:07:43

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