ASTE and APEX CO(J=3→2) Detection in the Southern Interacting Pair NGC 1326A-B

Details ASTE and APEX CO(J=3→2) Detection in the Southern Interacting Pair NGC 1326A-B ASTE and APEX CO(J=3→2) Detection in the Southern Interacting Pair NGC 1326A-B

Aug 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aspc..395..365c&link_type=abstract

Frontiers of Astrophysics: A Celebration of NRAO's 50th Anniversary ASP Conference Series, Vol. 395, Proceedings of the conferen

Astronomy and Astrophysics

Astrophysics

Scientific paper

We present CO(J=3→2) emission observations toward the Fornax Cluster interacting-galaxy pair NGC 1326A-B using the Atacama Sub-millimeter Telescope Experiment (ASTE), and the Atacama Pathfinder EXperiment (APEX) as part of an ongoing survey of Fornax interacting galaxies. These results show that NGC 1326A displays 17 mK emission for the inner 2 kpc. NGC 1326B displays a strong emission of 0.2 K along its disk with a secondary component of 60 mK at an intermediate velocity between NGC 1326A and NGC 1326B, suggesting the idea that gas, which originally belonged to NGC 1326A, is falling onto NGC 1326B. The observed kinematics in NGC 1326B shows no apparent gas rotation, which might suggest that the observed gas component has been recently disturbed, and is also consistent with a recent collision between the galaxies. The strong CO(J=3→2) emission detected suggests ongoing active star formation, and shows the feasibility of using CO(J=3→2) to study warm gas in this kind of interacting system.

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