Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998mnras.295l..45m&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 295, Issue 2, pp. L45-l49.
Astronomy and Astrophysics
Astronomy
7
Ism: Molecules, Galaxies: Active, Galaxies: Individual: Ngc 3079, Galaxies: Nuclei, Infrared: Galaxies
Scientific paper
A high-resolution image of the nuclear regions of the active galaxy NGC 3079 has been obtained in the H_2 1-0 S(1) emission line (rest lambda = 2.1218 μm) with the IRCAM3 camera on the 3.8-m UKIRT telescope. An ~ 35 pc diameter elongated core within a more diffuse, 300 pc long, region of most likely shock-excited H_2 is shown to surround the active nucleus and be embedded within what could be an extended region of enhanced star formation. A disc of molecular gas could be present that shapes the emission of relativistic gas away from the plane of the galaxy. This nuclear H_2 1-0 S(1) emitting gas (of total mass ~ 10^3 M_solar) is within a central dip in the distribution of cool, CO emitting, molecular gas (of total mass ~ 10^10 M_solar) which extends much further from the nucleus. The distributions of both the hot and the cool molecular gases are likely to be clumpy.
Fernandez Benito R.
Geballe Thomas Ronald
Holloway A. J.
Meaburn John
Mundell Carole G.
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