Volume 464, Number 1, March II 2007AMBER: Instrument description and first astrophysical results
|Page(s)||187 - 191|
|Published online||19 December 2006|
Barred CO emission in HE 1029-1831*
I. Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
2 Harvard-Smithsonian Center for Astrophysics, SMA project, 645 North A`ohoku Place, Hilo, HI 96720, USA e-mail: email@example.com
3 Institut de Radio Astronomie Millimetrique (IRAM), 300 rue de la Piscine, 38406 Saint Martin d'Hères, France
4 NASA/Goddard Space Flight Center, Code 665, Building 21, Greenbelt, MD 20771, USA
5 University of Maryland, College Park, MD 20742, USA
Accepted: 29 November 2006
We present CO(1–0) and CO(2–1) line emission maps of the barred spiral active galaxy HE 1029-1831 () obtained with the IRAM Plateau de Bure Interferometer (PdBI) and in part by the Berkeley-Illinois-Maryland Association (BIMA) observatory. The CO emission is well associated with the optical bar and extended along it. The FWHM of the CO emission is estimated to be ~() kpc. The CO emission shows a strong velocity gradient along the minor axis of the bar (). The molecular gas mass is estimated to be ~, which indicates a very gas rich host galaxy. Most of the molecular gas appears to be subthermally excited and cold but we also find weak evidence for a warmer and/or denser gas component at the southern part of the bar emission, about ~4 kpc from the galactic nucleus.
Key words: galaxies: active / galaxies: kinematics and dynamics / galaxies: individual: HE 1029-1831 / radio lines: galaxies / galaxies: Seyfert
© ESO, 2007
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