IUE UV spectra of the clumpy irregular galaxy MKN297

Details IUE UV spectra of the clumpy irregular galaxy MKN297 IUE UV spectra of the clumpy irregular galaxy MKN297

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979natur.282..272b&link_type=abstract

Nature, vol. 282, Nov. 15, 1979, p. 272-274.

Computer Science

20

Absorption Spectra, Galactic Structure, Iue, Main Sequence Stars, Ultraviolet Spectra, B Stars, Graphs (Charts), H Ii Regions, Line Spectra, O Stars, Tables (Data)

Scientific paper

Low-dispersion UV spectra in the wavelength ranges 115 to 195 nm and 190 to 320 nm of the clumpy irregular galaxy MKN 297 obtained by the IUE satellite are analyzed. The UV continuum spectrum is observed to follow a power law with spectral index -1.69, and to be steeper than that of late or classical irregular galaxies. The absorption lines in the spectrum are attributed to early O or B stars, with each of the five clumps containing approximately 10,000 early stars. No emission lines were detected. Comparison of the 155-nm intrinsic luminosity of MKN 297 with that of 30 Doradus indicates that a clump is approximately 100 times more powerful than a giant H II region. Spectral line identifications are consistent with the presence of hot main sequence stars, indicating that the clumps are supergiant H II regions in which exceptional bursts of star formation take place.

Affiliated with

Also associated with

No associations

Rating

IUE UV spectra of the clumpy irregular galaxy MKN297 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 IUE UV spectra of the clumpy irregular galaxy MKN297, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IUE UV spectra of the clumpy irregular galaxy MKN297 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-975511