Long-slit and Fabry-Perot Spectroscopy of Collisional Ring Galaxy Arp 10

Details Long-slit and Fabry-Perot Spectroscopy of Collisional Ring Galaxy Arp 10 Long-slit and Fabry-Perot Spectroscopy of Collisional Ring Galaxy Arp 10

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.2605m&link_type=abstract

American Astronomical Society Meeting 205, #26.05; Bulletin of the American Astronomical Society, Vol. 36, p.1386

Astronomy and Astrophysics

Astronomy

1

Scientific paper

We present results of Fabry-Perot and long-slit spectroscopy of the peculiar galaxy Arp 10. The ionized gas velocity field shows strong evidence for significant radial motions in both outer and inner galactic rings. Long-slit spectroscopy reveals gradients of age and metallicity of stellar population in agreement with the propagating nature of star formation in the galaxy. We present strong evidence that a small "knot" at 5 arcsec from the center of Arp 10 is its dwarf elliptic satellite, the most probable "intruder" responsible for triggering the expanding rings in Arp 10.

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