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SEST CO Studies of NGC 4945

Published online by Cambridge University Press:  03 August 2017

J.B. Whiteoak ,
M. Dahlem ,
R. Wielebinski ,
S. Hüttemeister ,
C. Henkel ,
G. Golla  and
J.I. Harnett
J.B. Whiteoak
Affiliation:
Australia Telescope National Facility, P.O. Box 76, Epping, NSW 2121, Australia
M. Dahlem
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-5300 Bonn 1, Federal Republic of Germany
R. Wielebinski
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-5300 Bonn 1, Federal Republic of Germany
S. Hüttemeister
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-5300 Bonn 1, Federal Republic of Germany
C. Henkel
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-5300 Bonn 1, Federal Republic of Germany
G. Golla
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-5300 Bonn 1, Federal Republic of Germany
J.I. Harnett
Affiliation:
School of Physics, University of Sydney, Sydney NSW 2006, Australia

Extract

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We have mapped the southern edge-on spiral galaxy NGC 4945 in 12CO(1-0) and 12CO(2-1) with the SEST telescope. Additional 13CO spectra were also obtained. The intense nuclear CO emission is in agreement with the revised classification of this galaxy as an Sc object. NGC 4945 was for many years known to be a prototype of nuclear activity with detections of various molecular lines at cm-wavelengths, an OH kilomaser, a superluminous H2O maser, etc. (Whiteoak, 1986). A host of molecules (CN, CS, C2H, HCN, CH3OH, etc.) has recently been detected at mm-wavelengths in the nucleus of NGC 4945 (Henkel et al., 1990).

Type
V- CO in Galactic Disks
Information
Symposium - International Astronomical Union , Volume 146: Dynamics of Galaxies and their Molecular Cloud Distributions , 1991 , pp. 164 - 165
Copyright
Copyright © Kluwer 1991 

References

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Henkel, C., Whiteoak, J.B., Nyman, L.-Å., Harju, J.: 1990, Astron. Astrophys. 230, L5 Google Scholar
Whiteoak, J.B.: 1986, Proc. Astron. Soc. Australia 6, 467 Google Scholar
Whiteoak, J.B., Dahlem, M., Wielebinski, R., Harnett, J.I.: 1990, Astron. Astrophys. 231, 25 Google Scholar