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HST Imaging of MEGA Microlensing Candidates in M31
Patrick Cseresnjes, Arlin P. S. Crotts, Jelte T. A. de Jong +5
We investigate /ACS and WFPC2 images at the positions of five candidate microlensing events from a large survey of variability in M31 (MEGA). Three closely match unresolved so…
MACHOs in M31? Absence of evidence but not evidence of absence
Jelte T. A. de Jong, Lawrence M. Widrow, Patrick Cseresnjes +9
We present results of a microlensing survey toward the Andromeda Galaxy (M31) carried out during four observing seasons at the Isaac Newton Telescope (INT). This survey is part of…
Equilibrium Disk-Bulge-Halo Models for the Milky Way and Andromeda Galaxies
Lawrence M. Widrow, John Dubinski
We describe a new set of self-consistent, equilibrium disk galaxy models that incorporate an exponential disk, a Hernquist model bulge, an NFW halo and a central supermassive black…