Cm and mm Survey of Molecular Absorption Lines in Centaurus A

We present Australia Telescope Array data of molecular absorption lines toward the bright central core of Centaurus A. The line of sight crosses the prominent dust lane and continues through the disk and eventually through gas that may be very close to the central supermassive black hole. The goal of our the survey is to determine the physical conditions of the gas via analyses of molecular line tracers including molecular abundances and excitation that is sensitive to changes in temperature, density, ionization, and shocks. This study allows us to derive the physical conditions of every absorption line complex and finally let us assign the most likely environments. We present ATCA data in the 20-50GHz range at medium resolution of a few km/s and possibly ALMA data at 3mm and 1mm wavelengths. The project continues with sub-km/s higher spectral resolution for the most important lines in 2012.

NATURVETENSKAP Fysik Astronomi, astrofysik och kosmologi hsv//swe
NATURAL SCIENCES Physical Sciences Astronomy, Astrophysics and Cosmology hsv//eng
quasars:absorption lines
ISM:molecules
galaxies:elliptical and lenticular
galaxies:ISM
galaxies: individual (NGC 5128)

Muller, Sebastien,1976Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)mullers (author)
Meier, D. (author)
Peck, A. (author)
Impellizzeri, V. (author)
Walter, F. (author)
Henkel, C. (author)
Martin, S. (author)
Aalto, Susanne,1964Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)saalto (author)
van der Werf, P. (author)
Feain, I. (author)
Anderson, C. (author)
Chalmers tekniska högskola (creator_code:org_t)

By the author/editor: Ott, Jürgen; Muller, Sebastie ...; Meier, D.; Peck, A.; Impellizzeri, V.; Walter, F.; show more...; Henkel, C.; Martin, S.; Aalto, Susanne, ...; van der Werf, P.; Feain, I.; Anderson, C.; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Astronomy Astrop ...

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