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LSST Science Book, Version 2.0
LSST Science Collaboration, Paul A. Abell, Julius Allison +245
A survey that can cover the sky in optical bands over wide fields to faint magnitudes with a fast cadence will enable many of the exciting science opportunities of the next decade.…
RR Lyrae variables in M32 and the disk of M31
Giuliana Fiorentino, Antonela Monachesi, Scott C. Trager +7
We observed two fields near M32 with the Advanced Camera for Surveys/High Resolution Channel (ACS/HRC) on board the Hubble Space Telescope (HST). The main field, F1, is 1.8 arcmin…
A 500 Parsec Halo Surrounding the Galactic Globular NGC 1851
Edward W. Olszewski, Abhijit Saha, Patricia Knezek +3
Using imaging that shows four magnitudes of main sequence stars, we have discovered that the Galactic globular cluster NGC 1851 is surrounded by a halo that is visible from the tid…
M32: Is There An Ancient, Metal-Poor Population?
G. Fiorentino, A. Monachesi, S. Trager +7
We observed two fields near M32 with the ACS/HRC on board the Hubble Space Telescope, located at distances of about 1.8' and 5.4' (hereafter F1 and F2, respectively) from the cente…
The Star Formation Histories of Disk and E/S0 Galaxies from Resolved Stars
Knut A. G. Olsen, Aaron J. Romanowsky, Abhijit Saha +3
The resolved stellar populations of local galaxies, from which it is possible to derive complete star formation and chemical enrichment histories, provide an important way to study…