Far Ultraviolet Imaging of the Core of NGC 6681 with WFPC-2

Details Far Ultraviolet Imaging of the Core of NGC 6681 with WFPC-2 Far Ultraviolet Imaging of the Core of NGC 6681 with WFPC-2

May 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aas...184.5817m&link_type=abstract

American Astronomical Society, 184th AAS Meeting, #58.17; Bulletin of the American Astronomical Society, Vol. 26, p.956

Astronomy and Astrophysics

Astronomy

Scientific paper

NGC 6681 is a collapsed core globular cluster with a power-law visible surface brightness profile. Far ultraviolet images obtained with WFPC-2 show a sparsely populated central region fully resolved into stars. A far ultraviolet to visible color magnitude diagram shows a well-defined horizontal branch with no evidence for evolved descendents. The blue horizontal branch stars are less centrally concentrated than the visible light. The center possibly harbors two blue stragglers.

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