683 citations
- Space Telescope Science InstituteUS16 papers
- Cornell UniversityUS10 papers
- Boston UniversityUS9 papers
- Université de BordeauxFR9 papers
- Centre National de la Recherche ScientifiqueFR8 papers
- Evgeni Kharadze Georgian National Astrophysical ObservatoryGE8 papers
- Lafayette CollegeUS8 papers
- Laboratoire d'Astrophysique de BordeauxFR7 papers
- Osservatorio Astrofisico di TorinoIT7 papers
- Union CollegeUS7 papers
- University of ConnecticutUS7 papers
- University of Massachusetts AmherstUS7 papers
Showing 1998Show all
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astro-ph1998★ 476 cited
Spectroscopy of Outlying H II Regions in Spiral Galaxies: Abundances and Radial Gradients
L. van Zee, J. J. Salzer, M. P. Haynes +2
We present the results of low dispersion optical spectroscopy of 186 H II regions spanning a range of radius in 13 spiral galaxies. Abundances for several elements (oxygen, nitroge…
astro-ph1998
Massive star populations in I Zw 18: A probe of stellar evolution in the early universe
Daniel Schaerer, Duilia de Mello, Claus Leitherer +1
We present a study of the gaseous and stellar emission in I Zw18, the most metal-poor star-forming galaxy known. Archival HST WFPC2 and FOS data have been used to analyze the spati…
astro-ph1998★ 41 cited
Searching for WR stars in I Zw 18 -- The origin of HeII emission
Duilia de Mello, Daniel Schaerer, Jennifer Heldmann +1
I Zw 18 is the most metal poor star-forming galaxy known and is an ideal laboratory to probe stellar evolution theory at low metallicities. Using archival HST WFPC2 imaging and FOS…