154 citations · 842 across the 16 of their papers we have counts for
16 papers
Globular and Open Clusters Observed by SDSS/SEGUE: the Giant Stars
Heather L. Morrison, Zhibo Ma, James L. Clem +10
We present griz observations for the clusters M92, M13 and NGC 6791 and gr photometry for M71, Be 29 and NGC 7789. In addition we present new membership identifications for all the…
The 2010 Eruption of the Recurrent Nova U Scorpii: The Multi-Wavelength Light Curve
Ashley Pagnotta, Bradley E. Schaefer, James L. Clem +8
The recurrent nova U Scorpii most recently erupted in 2010. Our collaboration observed the eruption in bands ranging from the Swift XRT and UVOT w2 (193 nm) to K-band (2200 nm), wi…
The RR Lyrae variables and Horizontal Branch of NGC6656 (M22)
Andrea Kunder, Peter B. Stetson, Santi Cassisi +10
The first calibrated broadband UBVI time-series photometry is presented for the RR Lyrae variable stars in NGC6656 (M22), with observations spanning a range of twenty-two years. We…
Optical and Infrared Analysis of Type II SN 2006BC
Joseph S. Gallagher, B. E. K. Sugerman, Geoffrey C. Clayton +8
We present nebular phase optical imaging and spectroscopy and near/mid-IR imaging of the Type II SN 2006bc. Observations reveal the central wavelength of the symmetric H line pr…
The effects of differential reddening and stellar rotation on the appearance of multiple populations in star clusters: the case of Trumpler 20
I. Platais, C. Melo, S. N. Quinn +6
We present a detailed analysis of the upper main sequence of the 1.3 Gyr old open cluster Trumpler 20. High accuracy BV photometry combined with the Very Large Telescope/FLAMES med…
Evidence for Pre-Existing Dust in the Bright Type IIn SN 2010jl
J. E. Andrews, Geoffrey C. Clayton, R. Wesson +11
SN 2010jl was an extremely bright, Type IIn SNe which showed a significant IR excess no later than 90 days after explosion. We have obtained Spitzer 3.6 and 4.5 \mum and JHK observ…