Investigating The Nuclear Activity Of Barred Spirals: The case of NGC 1672

Details Investigating The Nuclear Activity Of Barred Spirals: The case of NGC 1672 Investigating The Nuclear Activity Of Barred Spirals: The case of NGC 1672

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008head...10.3904j&link_type=abstract

American Astronomical Society, HEAD meeting #10, #39.04

Astronomy and Astrophysics

Astronomy

Scientific paper

We present new results from Chandra and XMM-Newton X-ray observations of the nearby barred spiral galaxy NGC1672. It shows dramatic nuclear and extra-nuclear star formation activity, including starburst regions located either end of its prominent bar. Using new X-ray imaging and spectral information, together with supporting multiwavelength data, we show for the first time that NGC1672 possesses a faint, hard, central X-ray source surrounded by a circumnuclear starburst ring that dominates the X-ray emission in the region, presumably triggered and sustained by gas and dust driven inwards along the galactic bar. The faint central source may represent low-level AGN activity, or alternatively emission associated with star-formation in the nucleus. More generally, we present some preliminary results on a Chandra archival search for low-luminosity AGN activity in barred galaxies.

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