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most citedThe White Dwarf Cooling Sequence of the Globular Cluster Messier 4

249 citations · 3.4k across the 56 of their papers we have counts for

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astro-ph2004★ 26 cited

Mass Segregation and Tidal Tails of the Globular Cluster NGC 7492

Kang Hwan Lee, Hyung Mok Lee, Gregory G. Fahlman +1

We present a wide field CCD photometric study of Galactic globular cluster NGC 7492. The derived VR color-magnitude diagram extends down to about 3.5 mag below the cluster main seq…

astro-ph2004

The Initial-Final Mass Relationship: Spectroscopy of White Dwarfs in NGC 2099 (M37)

Jasonjot Singh Kalirai, Harvey B. Richer, David Reitzel +5

We present new observations of very faint white dwarfs (WDs) in the rich open star cluster NGC 2099 (M37). Following deep, wide field imaging of the cluster using CFHT, we have now…

astro-ph2004★ 51 cited

The nature of a gravitationally lensed sub-millimetre arc in MS0451.6-0305: two interacting galaxies at z~2.9?

C. Borys, S. C. Chapman, M. Donahue +6

We present a new SCUBA image of the cluster MS0451.6-0305, which exhibits strong, extended sub-mm flux at 850 microns. The most striking feature in the map is an elongated region o…

astro-ph2004★ 19 cited

Concerning the White Dwarf Cooling Age of M4: A Response to the Paper by De Marchi et al. on "A Different Interpretation of Recent HST Observations"

H. B. Richer, J. Brewer, G. G. Fahlman +7

We respond to the paper by De Marchi, Paresce, Straniero and Moroni (2003) on the white dwarf cooling age of M4. The authors question the data analysis and interpretation that led…

astro-ph2004

HST Observations of the Main Sequence of M4

H. B. Richer, G. G. Fahlman, J. Brewer +8

This paper presents new results from a photometric study of the main-sequence stars in M4, the closest globular cluster to the sun. Multi-field, multi-epoch observations at approxi…