Interstellar medium in the M 43 nebula
Astrophysics of Galaxies
2010-05-12 v3
Abstract
We present a list of interstellar absorption lines in the direction of HD 37061 in the M 43 nebula. Some of the absorption lines arise from atomic excited levels that are uncommon in interstellar clouds. The excited levels of Fe II are populated by fluorescence. We found a large number of H2 molecular absorption lines arising from vibrationally excited levels. The ortho/para H2 ratio is equal to 2.7. The H2 rotational temperature of vibrational levels 1 - 5 exceeds 2000 K.
Cite
@article{arxiv.0901.0092,
title = {Interstellar medium in the M 43 nebula},
author = {Piotr Gnacinski},
journal= {arXiv preprint arXiv:0901.0092},
year = {2010}
}