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astro-ph1996★ 19 cited
Globular Cluster Photometry with the Hubble Space Telescope. VI. WF/PC-I Observations of the Stellar Populations in the Core of M13 (NGC 6205)
Randi L. Cohen, Puragra Guhathakurta, Brian Yanny +2
To probe the nature of stellar evolution in dense environments, we study the dense core of the globular cluster Messier 13 using pre-refurbishment Planetary Camera-I images obtaine…
astro-ph1996★ 26 cited
An Excess of C IV Absorbers in Luminous QSOs: Evidence for Gravitational Lensing?
Daniel E. Vanden Berk, Jean M. Quashnock, Donald G. York +1
We have compiled a new and extensive catalog of heavy-element QSO absorption line systems and analyzed the distribution of absorbers in bright and faint QSOs, to search for gravita…