Hubble Space Telescope Planetary Camera images of R136

Details Hubble Space Telescope Planetary Camera images of R136 Hubble Space Telescope Planetary Camera images of R136

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aj....104.1721c&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 104, no. 5, p. 1721-1742.

Astronomy and Astrophysics

Astronomy

90

Astronomical Photography, Cameras, Hubble Space Telescope, Massive Stars, Star Clusters, Narrowband, Spaceborne Astronomy, Stellar Cores

Scientific paper

Images obtained with the Planetary Camera on the HST is used here to study the stellar population of R136, the core of the 30 Doradus cluster. It is found that R136a, the brightest knot at the center of R136, is indeed a tight cluster of stars containing at least 12 components in a 1 arcsec region. Three of the stars are of the Wolf-Rayet (W-R) type. The brightest stars have luminosities consistent with their being massive O supergiants or W-R stars. The stellar mass density in R136a is at least a million tiems that of the solar neighborhood. In the larger region known as R136, the magnitudes of 214 stars are detected and measured. A color-magnitude diagram shows a range of stars from luminous O supergiants to ZAMS B3 stars. The diagram is very similar to that of stars outside of R136. A surface brightness profile constructed from stellar photometry is best fit by a pure power law.

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