147 citations · 677 across the 31 of their papers we have counts for
5 papers · 1 filter
Object detection in multi-epoch data
G. Jogesh Babu, Ashish Mahabal, S. G. Djorgovski +1
In astronomy multiple images are frequently obtained at the same position of the sky for follow-up co-addition as it helps one go deeper and look for fainter objects. With large sc…
Dark Energy From Vacuum Fluctuations
S. G. Djorgovski, V. G. Gurzadyan
We describe briefly a novel interpretation of the physical nature of dark energy (DE), based on the vacuum fluctuations model by Gurzadyan & Xue, and describe an internally consist…
A Nearly Model-Independent Characterization of Dark Energy Properties as a Function of Redshift
Ruth A. Daly, S. G. Djorgovski
Understanding the acceleration of the universe and its cause is one of the key problems in physics and cosmology today, and is best studied using a variety of mutually complementar…
Integrated Light 2MASS IR Photometry of Galactic Globular Clusters
Judith G. Cohen, Scott Hsieh, Stanimir Metchev +2
We have mosaiced 2MASS images to derive surface brightness profiles in JHK for 104 Galactic globular clusters. We fit these with King profiles, and show that the core radii are ide…
X-ray Galaxy Clusters in NoSOCS: Substructure and the Correlation of Optical and X-ray Properties
P. A. A. Lopes, R. R. de Carvalho, H. V. Capelato +5
We present a comparison of optical and X-ray properties of galaxy clusters in the northern sky. We determine the recovery rate of X-ray detected clusters in the optical as a functi…