Query : 2002A&A...381..566W

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.


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)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
1 HD 47240 Pu* 06 37 52.7038930896 +04 57 24.003132228 5.65 6.35 6.20 5.98 5.87 B1Ib 152 0
2 NAME MONOCEROS NEB SNR 06 38 43 +06 30.2           ~ 231 0

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