On the relationship between Red Rectangle and diffuse interstellar bands

Details On the relationship between Red Rectangle and diffuse interstellar bands On the relationship between Red Rectangle and diffuse interstellar bands

2009-09-03

arxiv.org/abs/0909.0699v1

The Open Astronomy Journal, 2009, vol. 2, issue 1, pp. 48-57

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

16 pages, 6 color figures. Fig.6 is a tentative assignation of the 6200A DIB

Scientific paper

10.2174/1874381100902010048

A careful examination of Red Rectangle bands which have been considered as diffuse interstellar bands (DIBs) in emission shows that a few are likely to be artifacts in the spectrum. Some others result from atmospheric extinction. Consequences for the Red Rectangle band/DIB associations are examined. I will also comment a striking resemblance between the DIB spectrum and the spectrum of NO2 in the 6150-6250A region. This suggests that some DIBs could be provoked by atmospheric molecules.

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