Starburst in the Intragroup Medium of Stephan's Quintet

Details Starburst in the Intragroup Medium of Stephan's Quintet Starburst in the Intragroup Medium of Stephan's Quintet

1998-08-31

arxiv.org/abs/astro-ph/9808344v1

Astronomy and Astrophysics

Astrophysics

17 pages, 2 PS figures. Accepted by ApJ

Scientific paper

10.1086/306771

Based on new ISO mid-infrared observations and ground based $H_\alpha$ and near-infrared observations, we report the detection of a bright starburst in the intragroup medium (IGM) of the famous compact group of galaxies Stephan's Quintet (Source A in Fig.1). We demonstrate that this starburst is caused by a collision between a high velocity ($\delta$V$\sim$ 1000 km/sec) intruder galaxy (NGC7318b) and the IGM of the group. While this is the only starburst known today that is induced by a galaxy/cold-intergalactic-medium collision, it provides new constraints to the theory for interaction-induced starbursts, and may hint at a new mechanism for the star formation excess seen in more distant clusters.

Affiliated with

Also associated with

No associations

Rating

Starburst in the Intragroup Medium of Stephan's Quintet 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 Starburst in the Intragroup Medium of Stephan's Quintet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Starburst in the Intragroup Medium of Stephan's Quintet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-503030