Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aas...186.3004l&link_type=abstract
American Astronomical Society, 186th AAS Meeting, #30.04; Bulletin of the American Astronomical Society, Vol. 27, p.854
Astronomy and Astrophysics
Astronomy
1
Scientific paper
HUT observations of the starburst galaxies IR0833+652, Mrk1267, Mrk66, and NGC6090=Mrk496 have been obtained. All four galaxies are at a redshift of about 0.02, permitting a measurement of their intrinsic Lyman discontinuity. The HUT data longward of 912 Angstroms in combination with stellar evolutionary synthesis models are used to determine the properties of the recently formed stars. Optical ground-based data are included in our discussion as well. We find evidence for a hot, ionizing stellar population at wavelengths longward of 912 Angstroms in all four galaxies. However, no significant flux below 912 Angstroms is detected in any of the four objects. Comparison with the extinction- corrected optical Balmer emission-line fluxes then implies that less than a few % of the intrinsic ionizing continuum below 912 Angstroms is observed by HUT (implying that starburst galaxies are rather opaque in the Lyman continuum). We discuss the implications of this result for the ionization of the intergalactic medium by galaxies with active star formation.
Ferguson Harry
Heckman Tim
Leitherer Cl.
No associations
LandOfFree
HUT Observations of the Lyman Continuum in Starburst Galaxies 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 HUT Observations of the Lyman Continuum in Starburst Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and HUT Observations of the Lyman Continuum in Starburst Galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-882430