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Molecular Absorption Lines in Galaxies

Published online by Cambridge University Press:  30 March 2016

Tommy Wiklind
Tommy Wiklind*
Affiliation:
ESA Space Telescope Division STScI, 3700 San Martin Dr, Baltimore MD 21218, USA

Abstract

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Molecular absorption lines have become an important tool in studying the astrochemistry of the dense and cold interstellar medium in both our own Galaxy and high redshift systems. The sensitivity is to first order only dependent on the observed continuum flux. Apart from a few nearby galaxies, molecular absorption lines have been used to study the molecular ISM in 4 galaxies at redshifts 0.25-0.89. A large number of molecular species and transitions have been observed, allowing a detailed comparison with molecular gas in our own Galaxy. Planned instruments, such as ALMA, will allow studies of a larger number of molecular absorption line systems.

Type
I. Joint Discussions
Information
Highlights of Astronomy , Volume 13 , 2005 , pp. 839 - 844
Copyright
Copyright © Astronomical Society of Pacific 2005

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