Extended Star Formation in the Dwarf Starburst/W-R Galaxy NGC 625

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

We present HST/WFPC2 imaging of the nearby (D=3.9±0.2 Mpc) dwarf starburst galaxy NGC 625. This system is host to a young, massive star formation region, comparable in Hα luminosity to 30 Doradus in the LMC. Hα and Hβ imaging reveals substantial and variable extinction (AV = 0.0-0.6 mags) within the major star formation regions. Using V and I imaging and a new modeling technique, we account for this differential extinction and derive a recent (< 100 Myr) star formation history in which an elevated but declining star formation rate has been present in the disk for this entire period. This is at odds with the presence of spectroscopic Wolf-Rayet (W-R) features in the major star formation region which imply a short duration (≤ 5 Myr) for the recent starburst. This suggests that starbursts displaying W-R features are not necessarily all of a short duration. These results have important implications for distant systems where a study of the resolved stellar population is unavailable.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Extended Star Formation in the Dwarf Starburst/W-R Galaxy NGC 625 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 Extended Star Formation in the Dwarf Starburst/W-R Galaxy NGC 625, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extended Star Formation in the Dwarf Starburst/W-R Galaxy NGC 625 will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1022070

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.