164 citations · 1.1k across the 14 of their papers we have counts for
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The Detection of 3He+ in a Planetary Nebula Using the VLA
Dana S. Balser, W. M. Goss, T. M. Bania +1
We used the VLA to search for 3He+ emission from two Galactic planetary nebulae (PNe): NGC6572 and J320}. Standard stellar models predict that the 3He/H abundance ratios for PNe sh…
The pure non-collisional Blue Straggler population in the giant stellar system omega Centauri
F. R. Ferraro, A. Sollima, R. T. Rood +3
We have used high spatial resolution data from the Hubble Space Telescope and wide-field ground-based observations to search for blue straggler stars (BSS) over the entire radial e…
UV/Optical Nuclear Activity in the gE Galaxy NGC 1399
R. W. O'Connell, J. R. Martin, J. D. Crane +5
Using HST/STIS, we have detected far-ultraviolet nuclear activity in the giant elliptical galaxy NGC 1399, the central and brightest galaxy in the Fornax I cluster. The source reac…
A helium spread among the main sequence stars in NGC 2808
F. D'Antona, M. Bellazzini, V. Caloi +3
We studied the color distribution of the main sequence of the Globular Cluster NGC 2808, based on new deep HST-WFPC2 photometry of a field in the uncrowded outskirts of the cluster…