The Revolution in Astronomy Education: Data Science for the Masses (2009)
Borne, Kirk D., Jacoby, Suzanne, Carney, K., Connolly, A., Eastman, T., Raddick, M. J., ...
As our capacity to study ever-expanding domains of our science has increased (including the time domain, non-electromagnetic phenomena, magnetized plasmas, and numerous sky surveys in multiple...
Low Surface Brightness Galaxies in the Core of the Coma Cluster (2009)
M. P. Ulmer, G. M. Bernstein, D. R. Martin, R. C. Nichol, J. L. Pendleton, J. A. Tyson
We present the results of a search for low surface brightness galaxies (hereafter LSBs) in the Coma cluster. Bernstein et al. report on deep CCD observations in R of a 7: 0 5 7: 0 5 region in the...
Wide-Field Astronomical Surveys in the Next Decade (2009)
Strauss, M. A., Tyson, J. A., Anderson, S. F., Axelrod, T. S., Becker, A. C., Bickerton, S. J., ...
Wide-angle surveys have been an engine for new discoveries throughout the modern history of astronomy, and have been among the most highly cited and scientifically productive observing facilities in...
Dark Matter Structures in the Universe: Prospects for Optical Astronomy in the Next Decade (2009)
Marshall, P. J., Auger, M., Bartlett, J. G., Bradac, M., Cooray, A., Dalal, N., ...
The Cold Dark Matter theory of gravitationally-driven hierarchical structure formation has earned its status as a paradigm by explaining the distribution of matter over large spans of cosmic distance...
The LSST Data Mining Research Agenda (2008)
Borne, K. D., Becla, J., Davidson, I., Szalay, A., Tyson, J. A.
We describe features of the LSST science database that are amenable to scientific data mining, object classification, outlier identification, anomaly detection, image quality assurance, and survey...
Dark Matter in the Galaxy Cluster CL J1226+3332 at Z=0.89 (2008)
We present a weak-lensing analysis of the galaxy cluster CL J1226+3332 at z=0.89 using Hubble Space Telescope Advanced Camera for Surveys images. The cluster is the hottest (>10 keV), most X-ray...
LSST and the Dark Sector: Image Processing Challenges (2008)
Tyson, J. A., Roat, C., Bosch, J., Wittman, D.
Next generation probes of dark matter and dark energy require high precision reconstruction of faint galaxy shapes from hundreds of dithered exposures. Current practice is to stack the images. While...
LSST: from Science Drivers to Reference Design and Anticipated Data Products (2008)
Ivezic, Z., Tyson, J. A., Allsman, R., Andrew, J., Angel, R., Collaboration, For The LSST
We describe the most ambitious survey currently planned in the visible band, the Large Synoptic Survey Telescope (LSST). The LSST design is driven by four main science themes: probing dark energy and...
M. P. Ulmer, G. M. Bernstein, D. R. Martin, R. C. Nichol, J. L. Pendleton, J. A. Tyson
We present the results of a search for low surface brightness galaxies (hereafter LSBs) in the Coma cluster. Bernstein et al. report on deep CCD observations in R of a 7: 0
D. Wittman, J. A. Tyson, G. M. Bernstein, R. W. Lee, I. P. Dell'antonio, P. Fischer, ...
The Big Throughput Camera (BTC) recently celebrated its first anniversary as a user instrument on the Blanco 4-meter telescope at Cerro Tololo Interamerican Observatory (CTIO), where it collects more...
G. M. Bernstein, R. C. Nichol, J. A. Tyson, M. P. Ulmer, D. Wittman
We determine the luminosity function (LF) of galaxies in the core of the Coma cluster for MR \Gamma11:4 (assuming H 0 = 75 km s \Gamma1
LSST: Comprehensive NEO Detection, Characterization, and Orbits (2007)
Ivezic, Z., Tyson, J. A., Juric, M., Kubica, J., Connolly, A., Pierfederici, F., ...
(Abridged) The Large Synoptic Survey Telescope (LSST) is currently by far the most ambitious proposed ground-based optical survey. Solar System mapping is one of the four key scientific design...
Wittman, D., Dell'Antonio, I. P., Hughes, J. P., Margoniner, V. E., Tyson, J. A., Cohen, J. G., ...
We present the first sample of galaxy clusters selected on the basis of their weak gravitational lensing shear. The shear induced by a cluster is a function of its mass profile and its redshift...
Two Windows on Acceleration and Gravitation: Dark Energy or New Gravity? (2005)
Small distortions in the observed shapes of distant galaxies, a cosmic shear due to gravitational lensing, can be used to simultaneously determine the distance-redshift relation, r(z), and the...
The Deep Lens Survey Transient Search I : Short Timescale and Astrometric Variability (2004)
Becker, A. C., Wittman, D. M., Boeshaar, P. C., Clocchiatti, A., Dell'Antonio, I. P., Frail, D. A., ...
We report on the methodology and first results from the Deep Lens Survey transient search. We utilize image subtraction on survey data to yield all sources of optical variability down to 24th...
Weak Lensing Results from the 75 Square Degree CTIO Survey (2002)
Jarvis, M., Bernstein, G., Jain, B., Fischer, P., Smith, D., Tyson, J. A., ...
We measure seeing-corrected ellipticities for 2 x 10^6 galaxies with magnitude R30\arcmin, ellipticity correlations are detected at high significance and exhibit nearly the pure "E-mode" behavior...
Wittman, D., Tyson, J. A., Dell'Antonio, I. P., Becker, A. C., Margoniner, V. E., Cohen, J., ...
The Deep Lens Survey (DLS) is a deep BVRz' imaging survey of seven 2x2 degree fields, with all data to be made public. The primary scientific driver is weak gravitational lensing, but the survey is...
Weak Lensing Discovery and Tomography of a Cluster at z=0.68 (2002)
Wittman, D., Margoniner, V. E., Tyson, J. A., Cohen, J. G., Dell'Antonio, I. P., Becker, A. C.
We report the weak lensing discovery, spectroscopic confirmation, and weak lensing tomography of a massive cluster of galaxies at $z=0.68$, demonstrating that shear selection of clusters works at...
LSST: a Complementary Probe of Dark Energy (2002)
Tyson, J. A., Wittman, D. M., Hennawi, J. F., Spergel, D. N.
The number of mass clusters and their distribution in redshift are very sensitive to the density of matter Omega_m and the equation of state of dark energy w. Using weak lens gravitational tomography...
Discovery of a Galaxy Cluster via Weak Lensing (2001)
Wittman, D., Tyson, J. A., Margoniner, V. E., Cohen, J. G., Dell'Antonio, I. P.
We report the discovery of a cluster of galaxies via its weak gravitational lensing effect on background galaxies, the first spectroscopically confirmed cluster to be discovered through its...
The Dark Matter Telescope (2000)
Tyson, J. A., Wittman, David, Angel, J. R. P.
Weak gravitational lensing enables direct reconstruction of dark matter maps over cosmologically significant volumes. This research is currently telescope-limited. The Dark Matter Telescope (DMT) is...
Low Surface Brightness Galaxies in the Core of the Coma Cluster (1996)
Ulmer, M. P., Bernstein, G. M., Martin, D. R., Nichol, R. C., Pendleton, J. L., Tyson, J. A.
We present the results of a search for low surface brightness galaxies (hereafter LSBs) in the Coma cluster. Bernstein et al. report on deep CCD observations in R of a 7.5 by 7.5 arcminute region in...
Measurement of the Mass Profile of Abell 1689 (1995)
In this letter we present calibrated mass and light profiles of the rich cluster of galaxies Abell 1689 out to 1 $h^{-1}$ Mpc from the center. The high surface density of faint blue galaxies at high...
The Luminosity Function of the Coma Cluster Core for -25 (1995)
Bernstein, G. M., Nichol, R. C., Tyson, J. A., Ulmer, M. P., Wittman, D.
We determine the luminosity function (LF) of galaxies in the core of the Coma cluster for M_R