276 citations · 711 across the 6 of their papers we have counts for
6 papers
Globular Cluster and Galaxy Formation: M31, the Milky Way and Implications for Globular Cluster Systems of Spiral Galaxies
D. Burstein, Y. Li, K. C. Freeman +10
The globular cluster (GC) systems of the Milky Way and of our neighboring spiral galaxy, M31, comprise 2 distinct entities, differing in 3 respects. 1. M31 has young GCs, ages from…
Nitrogen Overabundance: Globular Cluster and Halo Formation
Yong Li, David Burstein
Halo globular clusters pose four succinct issues that must be solved in any scenario of their formation: single-age, single metallicity stellar populations; a lower limit ([Fe/H] ~…
The Distance to SN 1999em from the Expanding Photosphere Method
M. Hamuy, P. A. Pinto, J. Maza +22
We present optical and IR spectroscopy of the first two months of evolution of the Type II SN 1999em. We combine these data with high-quality optical/IR photometry beginning only t…
Deep Intermediate-Band Surface Photometry of NGC 5907
BATC Collaboration, Z. Y. Zheng, Z. H. Shang +3
We obtained very deep exposures of NGC 5907 with a Schmidt telescope, large-format CCD, and intermediate-band filters centered at 6660A and 8020A. These two filters, part of a 15-f…
Ring structure and warp of NGC5907 -- Interaction with dwarf galaxies
Zhaohui Shang, Zhongyuan Zheng, Elias Brinks +22
The edge-on, nearby spiral galaxy NGC5907 has long been used as the prototype of a ``non-interacting'' warped galaxy. We report here the discovery of two interactions with companio…
Deep Wide-Field Spectrophotometry of the Open Cluster M67
Xiaohui Fan, David Burstein, Jian-sheng Chen +21
We present nine color CCD intermediate-band spectrophotometry of a two square degree field centered on the old open cluster M67, from 3890 to nearly 1. These observations…