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LSST: from Science Drivers to Reference Design and Anticipated Data Products
Željko Ivezić, Steven M. Kahn, J. Anthony Tyson +310
(Abridged) We describe here the most ambitious survey currently planned in the optical, the Large Synoptic Survey Telescope (LSST). A vast array of science will be enabled by a sin…
PC1643+4631A,B: The Lyman-Alpha Forest at the Edge of Coherence
Caitlin M. Casey, Christopher D. Impey, Catherine E. Petry +2
This is the first measurement and detection of coherence in the intergalactic medium (IGM) at substantially high redshift (z~3.8) and on large physical scales (~2.5 h^-1 Mpc). We p…
Lyman-Alpha Absorption in the Quasar Triplet Q0107-025A, Q0107-025B, and Q0107-0232: Data Calibration and Line Selection
C. E. Petry, C. D. Impey, J. L. Fenton +1
We present spectroscopic observations for quasars Q0107-025A, Q0107-025B, and Q0107-0232. For the first time, all data obtained with the Hubble Space Telescope's GHRS and FOS for t…
Quasars as Absorption Probes of the J0053+1234 Region
D. H. McIntosh, C. D. Impey, C. E. Petry
We present UBRI photometry and spectra for 60 quasars found within one square degree centered on the J0053+1234 region, which has been the subject of the Caltech Faint Galaxy Redsh…
LBQS 0015+0239: A Binary Quasar with Small Angular Separation
C. D. Impey, C. E. Petry, C. B. Foltz +2
We present spectroscopic observations with Keck/LRIS of LBQS 0015+0239, a pair of quasars at z = 2.45 with a separation of arcsec (projected linear distance of 17.8 $h_{7…
Comparing Simulations and Observations of the Lyman-Alpha Forest I. Methodology
C. E. Petry, C. D. Impey, N. Katz +2
We describe techniques for comparing spectra extracted from cosmological simulations and observational data, using the same methodology to link Lyman-alpha properties derived from…