Probing ionizing stars of ultracompact H II regions with mid-infrared fine structure lines

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H Ii Regions, Infrared Lines

Scientific paper

We observed two ultracompact (UC) H II regions W51IRS2 and K3-50A with imaging and long-slit spectroscopy in the N-band. Using fine structure line emissions of [Ne II] 12.8 μm, [Ar III] 8.99 μm, and [S IV] 10.51 μm, we probed the ionizing stars of the regions. For all of the UC H II regions observed, flux ratios of the lines suggest much later spectral types than those derived from the radio continuum fluxes. Toward K3-50A, the extinction-corrected [Ne II] emission was clearly resolved into two peaks, suggesting the presence of at least two ionizing sources. (Ultra) compact H II regions are likely to be ionized by star clusters.

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

Probing ionizing stars of ultracompact H II regions with mid-infrared fine structure lines 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 Probing ionizing stars of ultracompact H II regions with mid-infrared fine structure lines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probing ionizing stars of ultracompact H II regions with mid-infrared fine structure lines will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1408866

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