337 citations · 4.1k across the 64 of their papers we have counts for
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The HD 163296 Circumstellar Disk in Scattered Light: Evidence of Time-Variable Self-Shadowing
John P. Wisniewski, Mark Clampin, Carol A. Grady +6
We present the first multi-color view of the scattered light disk of the Herbig Ae star HD 163296, based on coronagraphic observations from the Hubble Space Telescope Advanced Came…
High-resolution polarimetry of Parsamian 21: revealing the structure of an edge-on FU Ori disc
Á. Kóspál, P. Ábrahám, D. Apai +6
We present the first high spatial resolution near-infrared direct and polarimetric observations of Parsamian 21, obtained with the VLT/NACO instrument. We complemented these measur…
A Search for Planets Transiting the M Dwarf Debris Disk Host, AU Microscopii
Leslie Hebb, Larry Petro, Holland C. Ford +5
We present high cadence, high precision multi-band photometry of the young, M1Ve, debris disk star, AU Microscopii. The data were obtained in three continuum filters spanning a wav…
HD 97048's Circumstellar Environment as Revealed by a HST/ACS Coronagraphic Study of Disk Candidate Stars
R. L. Doering, M. Meixner, S. T. Holfeltz +5
We present the results of a coronagraphic scattered-light imaging survey of six young disk candidate stars using the Hubble Space Telescope Advanced Camera for Surveys. The observa…
HST/ACS Multiband Coronagraphic Imaging of the Debris Disk around Beta Pictoris
D. A. Golimowski, D. R. Ardila, J. E. Krist +40
(Abridged.) We present F435W (B), F606W (Broad V), and F814W (Broad I) coronagraphic images of the debris disk around Beta Pictoris obtained with HST's Advanced Camera for Surveys.…
The loopy UV line profiles of RU Lupi: accretion, outflows, and fluorescence
G. J. Herczeg, F. M. Walter, J. L. Linsky +6
We present far-ultraviolet spectra of the classical T Tauri star RU Lupi covering the 912-1710 A spectral range, as observed by the HST/STIS and FUSE satellites. We use these spect…
A Dynamical Simulation of the Debris Disk Around HD 141569A
D. R. Ardila, S. H. Lubow, D. A. Golimowski +36
We study the dynamical origin of the structures observed in the scattered-light images of the resolved debris disk around HD 141569A. We explore the roles of radiation pressure fro…
The Luminosity Functions of the Galaxy Cluster MS1054-0321 at z=0.83 based on ACS Photometry
Tomotsugu Goto, Marc Postman, Nicholas J. G. Cross +41
We present new measurements of the galaxy luminosity function (LF) and its dependence on local galaxy density, color, morphology, and clustocentric radius for the massive z=0.83 cl…
The Transformation of Cluster Galaxies at Intermeidate Redshift
N. L. Homeier, R. Demarco, P. Rosati +17
We combine imaging data from the Advanced Camera for Surveys (ACS) with VLT/FORS optical spectroscopy to study the properties of star-forming galaxies in the z=0.837 cluster CL0152…
A Resolved Debris Disk around the G2V star HD 107146
D. R. Ardila, D. A. Golimowski, J. E. Krist +6
We present resolved scattered-light images of the debris disk around HD 107146, a G2 star 28.5 pc from the Sun. This is the first debris disk to be resolved in scattered light arou…
HST/ACS Coronagraphic Imaging of the AU Microscopii Debris Disk
John E. Krist, D. R. Ardila, D. A. Golimowski +5
We present {\it Hubble Space Telescope} Advanced Camera for Surveys multicolor coronagraphic images of the recently discovered edge-on debris disk around the nearby ( pc) M…
Strong Lensing Analysis of A1689 from Deep Advanced Camera Images
Tom Broadhurst, Narciso Benitez, Dan Coe +6
We analyse deep multi-colour Advanced Camera images of the largest known gravitational lens, A1689. Radial and tangential arcs delineate the critical curves in unprecedented detail…
Ultra Compact Dwarf galaxies in Abell 1689: a photometric study with the ACS
S. Mieske, L. Infante, N. Benitez +37
The properties of Ultra Compact Dwarf (UCD) galaxy candidates in Abell 1689 (z=0.183) are investigated, based on deep high resolution ACS images. A UCD candidate has to be unresolv…
Measuring Fundamental Parameters of Substellar Objects. I: Surface Gravities
Subhanjoy Mohanty, Gibor Basri, Ray Jayawardhana +3
(abridged) We present an analysis of high resolution optical spectra for a sample of very young, mid- to late M, low-mass stellar and substellar objects in Upper Sco and Taurus. Ef…
X-ray Properties of Pre--Main-Sequence Stars in the Orion Nebula Cluster with Known Rotation Periods
Keivan G. Stassun, David R. Ardila, Mary Barsony +2
We re-analyze all archival Chandra/ACIS observations of the Orion Nebula Cluster (ONC) to study the X-ray properties of a large sample of pre--main-sequence (PMS) stars with optica…
A large population of 'Lyman-break' galaxies in a protocluster at redshift z=4.1
George K. Miley, Roderik A. Overzier, Zlatan I. Tsvetanov +1
The most massive galaxies and the richest clusters are believed to have emerged from regions with the largest enhancements of mass density relative to the surrounding space. Distan…
Discovery of Globular Clusters in the Proto-Spiral NGC2915: Implications for Hierarchical Galaxy Evolution
G. R. Meurer, J. P. Blakeslee, M. Sirianni +30
We have discovered three globular clusters beyond the Holmberg radius in Hubble Space Telescope Advanced Camera for Surveys images of the gas-rich dark matter dominated blue compac…
Mapping the Circumstellar Environment of T Tauri with Fluorescent H_2 Emission
Frederick M. Walter, Gregory Herczeg, Alexander Brown +6
We have obtained three long-slit, far UV spectra of the pre-main sequence system T Tauri. These HST/STIS spectra show a strong and variable on-source spectrum composed of both fluo…
Faint Galaxies in deep ACS observations
N. Benitez, H. Ford, R. Bouwens +33
We present the analysis of the faint galaxy population in the Advanced Camera for Surveys (ACS) Early Release Observation fields VV 29 (UGC 10214) and NGC 4676. Here we attempt to…
Observational Clues to Brown Dwarf Origins
Ray Jayawardhana, Subhanjoy Mohanty, Gibor Basri +3
Over the past year, we have conducted a multi-faceted program to investigate the origin and early evolution of brown dwarfs. Using high-resolution Keck optical spectra of ~30 objec…
Star Formation at z~6: i-dropouts in the ACS GTO fields
R. J. Bouwens, G. D. Illingworth, P. Rosati +33
Using an i-z dropout criterion, we determine the space density of z~6 galaxies from two deep ACS GTO fields with deep optical-IR imaging. A total of 23 objects are found over 46 ar…
A Disk Census for Young Brown Dwarfs
Ray Jayawardhana, David R. Ardila, Beate Stelzer +1
Recent surveys have identified sub-stellar objects down to planetary masses in nearby star-forming regions. Reliable determination of the disk frequency in young brown dwarfs is of…
HST/ACS Coronagraphic Imaging of the Circumstellar Disk around HD1415659A
M. Clampin, J. E. Krist, D. R. Ardila +31
Multicolor coronagraphic images of the circumstellar disk around HD141569A have been obtained with the Hubble Space Telescope (HST) Advanced Camera for Surveys. B, V, and I images…
Discovery of Two Distant Type Ia Supernovae in the Hubble Deep Field North with the Advanced Camera for Surveys
John P. Blakeslee, Zlatan I. Tsvetanov, Adam G. Riess +30
We present observations of the first two supernovae discovered with the recently installed Advanced Camera for Surveys (ACS) on the Hubble Space Telescope. The supernovae were foun…