The peculiar galaxy Mkn 298 revisited through integral field spectroscopy

Details The peculiar galaxy Mkn 298 revisited through integral field spectroscopy The peculiar galaxy Mkn 298 revisited through integral field spectroscopy

2004-10-14

arxiv.org/abs/astro-ph/0410357v1

Astronomy and Astrophysics

Astrophysics

9 figures, 12 pages, accepted for publication on Astronomy & Astrophysics

Scientific paper

10.1051/0004-6361:20041884

Spectroscopic and imaging data of the peculiar galaxy Mkn 298 are presented in this paper. Narrow-band Halpha and broad-band R images are used to study the star formation rate in the galaxy and its morphology, which is typical of a merging system. Long-slit and integral field spectra are used to assess the kinematics of gas and stars, and the nature of the ionizing source at different distances from the nucleus. In particular, the nucleus of Mkn 298 is characterized by peculiar line ratios: [NII] 6583/Halpha is typical of HII-like regions, while [OI] 6300/Halpha could indicate the presence of an active galactic nucleus. We show that models where a shock component is added to photoionization from a starburst allow to reproduce the observed line ratios. Mkn 298 is thus most likely a star forming galaxy, rather than a galaxy hosting an active nucleus.

Affiliated with

Also associated with

No associations

Rating

The peculiar galaxy Mkn 298 revisited through integral field spectroscopy does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The peculiar galaxy Mkn 298 revisited through integral field spectroscopy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The peculiar galaxy Mkn 298 revisited through integral field spectroscopy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-663512