Probing physics and chemistry in circumnuclear torus with OH

Details Probing physics and chemistry in circumnuclear torus with OH Probing physics and chemistry in circumnuclear torus with OH

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hia....13..848y&link_type=abstract

In: Highlights of Astronomy, Vol. 13, as presented at the XXVth General Assembly of the IAU - 2003 [Sydney, Australia, 13 - 26 J

Astronomy and Astrophysics

Astronomy

Astrochemistry

Scientific paper

We observed OH maser emission at 18 cm in a circumnuclear torus surrounding the center of IRAS10173+0828 using the 7 telescopes of MERLIN, together with the Lovell antenna. IRAS10173+0828 is as distant super-luminous far-infrared galaxy. The OH maser emission is remarkably narrow (FWHP=39 km s-1) for its strength, and the 1667 and 1665 MHz lines are well separated. The 1667 transition shows two distinct peaks displaced from one another by 100 km s-1. Using our MERLIN observational results we probe the physics in the circumnuclear torus surrounding the center of IRAS10173+0828, obtain the kinematic properties of the torus, and study the central source.

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