ALMA hints at the existence of an unseen reservoir of diffuse molecular gas in the Galactic bulge

Author： Gerin M.   Liszt H.  

Publisher： Edp Sciences

E-ISSN： 1432-0746|600|issue|A48-A48

ISSN： 0004-6361

Source： Astronomy & Astrophysics, Vol.600, Iss.issue, 2017-03, pp. : A48-A48

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Abstract

Aims. We aim to understand the unexpected presence of mm-wave molecular absorption at −200 km s-1<v<−140 km s-1 in a direction that is well away from regions of the Galactic bulge where CO emission at such velocities is prominent.

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