Supernovae in Giant HII Regions

Details Supernovae in Giant HII Regions Supernovae in Giant HII Regions

Apr 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aps..apr..b601v&link_type=abstract

American Physical Society, APS/AAPT Joint Meeting, April 18-21, 1997, abstract #B6.01

Statistics

Scientific paper

In this talk I discuss the association of supernovae with giant H II regions, which trace massive star formation in late-type galaxies. This study is primarily based on ground-based CCD Hα imaging, although I do consider HST WFPC2 imaging as well, primarily of the underlying massive stellar constituents. We find that Type Ia supernovae are not associated with giant H II regions, which is consistent with their arising from an older, evolved stellar population. Concentrating particularly on supernovae arising from massive progenitors, Type Ib/c and Type II supernovae, we find that the degree of association of both supernova types with H II regions in their parent galaxies is not significantly different (approximately ~ 0.7 of all such supernovae were found associated with detected H II regions), implying that both types arise from essentially the same range of stellar masses. From consideration of these statistics, including the Hα luminosities of the H II regions with which supernovae are associated, we can exclude the Wolf-Rayet star progenitor model for most Type Ib/c supernovae. Instead, the progenitors of Type Ib/c supernovae are probably in relatively close binary systems, rather than single stars or stars in wide binaries (possible progenitor systems for Type II supernovae); interaction with a companion star can severely deplete the hydrogen envelope prior to explosion.

Affiliated with

Also associated with

No associations

Rating

Supernovae in Giant HII Regions 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 Supernovae in Giant HII Regions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Supernovae in Giant HII Regions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1316977