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- W2034397708 abstract "view Abstract Citations (138) References (38) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Dense Galactic Starburst NGC 3603. I. HST/FOS Spectroscopy of Individual Stars in the Core and the source of Ionization and Kinetic Energy Drissen, Laurent ; Moffat, Anthony F. J. ; Walborn, Nolan R. ; Shara, Michael M. Abstract We present spectrograms of 14 individual luminous stars in RD 97950, the core (r≤4=0.12 pc) of the dense galactic starburst NGC 3603, obtained with the Faint Object Spectrograph aboard the refurbished Hubble Space Telescope. In a volume of less than a cubic light year, three luminous hydrogen-rich WNL+abs stars cohabit with six O3 stars [including two O3 III (f*)] and other early O stars; RD 97950 is therefore the densest concentration of very massive stars known in the Galaxy. The close physical association between O3 and WNL + abs stars, as well as the evolution of spectroscopic features, suggests a direct evolutionary link between them. The total output of Lyman continuum photons from these 14 stars alone accounts for more than 80% of what is required to ionize the surrounding nebula. The very small radius of the wind-driven bubble surrounding RD 97950 seems at odds with the tremendous power, LW ∼3.2 × 1038 erg s-1, supplied by massive stars to the nebula. Publication: The Astronomical Journal Pub Date: November 1995 DOI: 10.1086/117684 Bibcode: 1995AJ....110.2235D Keywords: ISM: KINEMATICS AND DYNAMICS; HII REGIONS; ISM: INDIVIDUAL: NGC 3603 full text sources ADS | data products SIMBAD (24) MAST (1) ESA (1)" @default.
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- W2034397708 title "The Dense Galactic Starburst NGC 3603. I. HST/FOS Spectroscopy of Individual Stars in the Core and the source of Ionization and Kinetic Energy" @default.
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