The thermal state of molecular clouds in the Galactic center: evidence for non-photon-driven heating
Konferensbidrag (offentliggjort, men ej förlagsutgivet), 2014

We have used the Atacama Pathfinder Experiment (APEX) 12 m telescope at 218 GHz to observe molecular clouds simultaneously in the J_KA,Kc=3_03→2_02,3_22→2_21,and 3_21→2_20 transitions of para-H2CO to determine kinetic temperatures of the dense gas in the central molecular zone of the Galaxy. Gas kinetic temperatures for individual molecular clouds range from 55 to 125 K or even higher. The molecular clouds at high temperatures may be heated by turbulent dissipation and/or cosmic-rays

Galaxy: center – interstellar medium: clouds – ISM: molecules – radio lines: ISM

Författare

Y. Ao

MPIfR

Chinese Academy of Sciences

National Institutes of Natural Sciences - National Astronomical Observatory of Japan

C. Henkel

MPIfR

King Abdulaziz University

K. M. Menten

MPIfR

M. A. Requena-Torres

MPIfR

T. Stanke

European Southern Observatory (ESO)

R. Mauersberger

Atacama Large Millimeter-submillimeter Array (ALMA)

Susanne Aalto

Chalmers, Rymd- och geovetenskap, Radioastronomi och astrofysik

S. Muhle

Universität Bonn

J. G. Mangum

National Radio Astronomy Observatory

Proceedings of the International Astronomical Union

1743-9213 (ISSN) 1743-9221 (eISSN)

Vol. 9 S303 89-91

Ämneskategorier

Astronomi, astrofysik och kosmologi

Fundament

Grundläggande vetenskaper

Infrastruktur

Onsala rymdobservatorium

DOI

10.1017/S1743921314000234

ISBN

9781107044616

Mer information

Senast uppdaterat

2018-10-02