Bolton, Adam S., Schlegel, David J.
We describe a new algorithm for the "perfect" extraction of one-dimensional spectra from two-dimensional CCD images of optical fiber spectrographs, based on accurate two-dimensional (2D) forward...
Dry mergers and the formation of early-type galaxies: constraints from lensing and dynamics (2009)
Nipoti, Carlo, Treu, Tommaso, Bolton, Adam S.
Dissipationless (gas-free or "dry") mergers have been suggested to play a major role in the formation and evolution of early-type galaxies, particularly in growing their mass and size without...
Schwab, Josiah, Bolton, Adam S., Rappaport, Saul A.
Galaxy-scale strong gravitational lenses with measured stellar velocity dispersions allow a test of the weak-field metric on kiloparsec scales and a geometric measurement of the cosmological...
Strong gravitational lensing probes of the particle nature of dark matter (2009)
Moustakas, Leonidas A., Abazajian, Kevork, Benson, Andrew, Bolton, Adam S., Bullock, James S., Chen, Jacqueline, ...
There is a vast menagerie of plausible candidates for the constituents of dark matter, both within and beyond extensions of the Standard Model of particle physics. Each of these candidates may have...
Bolton, Adam S., Burles, Scott, Koopmans, Léon V. E., Treu, Tommaso, Moustakas, Leonidas A.
The Sloan Lens ACS (SLACS) Survey is an efficient Hubble Space Telescope (HST) Snapshot imaging survey for new galaxy-scale strong gravitational lenses. The targeted lens candidates are selected...
The Sloan Lens ACS Survey. V. The Full ACS Strong-Lens Sample (2008)
Bolton, Adam S., Burles, Scott, Koopmans, Leon V. E., Treu, Tommaso, Gavazzi, Raphael, Moustakas, Leonidas A., ...
We present the definitive data for the full sample of 131 strong gravitational lens candidates observed with the Advanced Camera for Surveys (ACS) aboard the Hubble Space Telescope by the Sloan Lens...
Bolton, Adam S., Treu, Tommaso, Koopmans, Leon V. E., Gavazzi, Raphael, Moustakas, Leonidas A., Burles, Scott, ...
We use a sample of 53 massive early-type strong gravitational lens galaxies with well-measured redshifts (ranging from z=0.06 to 0.36) and stellar velocity dispersions (between 175 and 400 km/s) from...
Lensing Probabilities for Spectroscopically Selected Galaxy-Galaxy Strong Lenses (2008)
Dobler, Gregory, Keeton, Charles R., Bolton, Adam S., Burles, Scott
Spectroscopic galaxy-galaxy lens searches are presently the most prolific method of identifying strong lens systems in large data sets. We study the probabilities associated with these lens searches,...
The Sloan Lens ACS Survey. VI: Discovery and analysis of a double Einstein ring (2008)
Gavazzi, Raphael, Treu, Tommaso, Koopmans, Leon V. E., Bolton, Adam S., Moustakas, Leonidas A., Burles, Scott, ...
We report the discovery of two concentric Einstein rings around the gravitational lens SDSSJ0946+1006, as part of the Sloan Lens ACS Survey. The main lens is at redshift zl=0.222, while the inner...
Czoske, Oliver, Barnabe, Matteo, Koopmans, Leon V. E., Treu, Tommaso, Bolton, Adam S.
We present the first results of a combined VLT VIMOS integral-field unit and Hubble Space Telescope (HST)/ACS study of the early-type lens galaxy SDSS J2321-097 at z=0.0819, extending kinematic...
An integral-field spectroscopic strong lens survey (2007)
Bolton, Adam S., Burles, Scott
We present the observational results of a survey for strong gravitational lens systems consisting of extended emission-line galaxies lensed by intervening early-type galaxies, conducted using...
A More Fundamental Plane (2007)
Bolton, Adam S., Burles, Scott, Treu, Tommaso, Koopmans, Leon V. E., Moustakas, Leonidas A.
We combine strong-lensing masses with SDSS stellar velocity dispersions and HST-ACS effective (half-light) radii for 36 lens galaxies from the Sloan Lens ACS (SLACS) Survey to study the mass...
Gavazzi, Raphael, Treu, Tommaso, Rhodes, Jason D., Koopmans, Leon V. E., Bolton, Adam S., Burles, Scott, ...
We present a weak gravitational lensing analysis of 22 early-type strong lens galaxies, based on deep HST images obtained as part of the Sloan Lens ACS Survey. Using the most advanced techniques to...
Constraint on the Post-Newtonian Parameter gamma on Galactic Size Scales (2006)
Bolton, Adam S., Rappaport, Saul, Burles, Scott
We constrain the post-Newtonian gravity parameter gamma on kiloparsec scales by comparing the masses of 15 elliptical lensing galaxies from the Sloan Lens ACS Survey as determined in two independent...
A New Einstein Cross: A Highly Magnified, Intrinsically Faint Lyman-Alpha Emitter at z=2.7 (2006)
Bolton, Adam S., Moustakas, Leonidas A., Stern, Daniel, Burles, Scott, Dey, Arjun, Spinrad, Hyron
We report the discovery of a new Einstein cross at redshift z_S = 2.701 based on Lyman-alpha emission in a cruciform configuration around an SDSS luminous red galaxy (z_L = 0.331). The system was...
Bolton, Adam S., Burles, Scott, Koopmans, Leon V. E., Treu, Tommaso, Moustakas, Leonidas A.
The Sloan Lens ACS (SLACS) Survey is an efficient Hubble Space Telescope Snapshot imaging survey for new galaxy-scale strong gravitational lenses. The targeted lens candidates are selected...
Boyce, Edward R., Bowman, Judd D., Bolton, Adam S., Hewitt, Jacqueline N., Burles, Scott
We report on a novel search for radio gravitational lenses. Using the Very Large Array, we imaged ten candidates with both dual redshifts in Sloan Digital Sky Survey spectra and 1.4 GHz radio flux >2...
SDSSJ140228.22+632133.3: A New Spectroscopically Selected Gravitational Lens (2004)
Bolton, Adam S., Burles, Scott, Koopmans, Leon V. E., Treu, Tommaso, Moustakas, Leonidas A.
(abridged) We present Gemini integral-field unit (IFU) spectroscopy and Hubble Space Telescope (HST) F435W- and F814W-band images of a new four-image gravitational lens, SDSSJ140228.22+632133.3,...
Bolton, Adam S., Burles, Scott, Schlegel, David J., Eisenstein, Daniel J., Brinkmann, J.
We present a catalog of 49 spectroscopic strong gravitational lens candidates selected from a Sloan Digital Sky Survey sample of 50996 luminous red galaxies. Potentially lensed star-forming galaxies...
Bolton, Adam S., Burles, Scott
We assess the possibility of determining the Hubble constant H_0 by measuring time delays between multiple images of supernovae gravitationally lensed by rich clusters of galaxies and combining these...
Blue Stars and Binary Stars in NGC 6397: Case Study of a Collapsed-Core Globular Cluster (2002)
Cool, Adrienne M., Bolton, Adam S.
The dense central region of NGC 6397 contains three classes of stars whose origins are likely related to stellar interactions: blue stragglers, cataclysmic variables, and probable helium white...