| Program Number | Principal Investigator | Program Title |
|---|---|---|
| 11714 | Howard E. Bond, Space Telescope Science Institute | Snapshot Survey for Planetary Nebulae in Local Group Globular Clusters |
| 12026 | James C. Green, University of Colorado at Boulder | COS-GTO: Sampling the Interstellar Gas Between the Milky Way and Triangulum Galaxies |
| 12029 | James C. Green, University of Colorado at Boulder | WARM AND HOT ISM IN AND NEAR THE MILKY WAY Part 2 |
| 12036 | James C. Green, University of Colorado at Boulder | COS-GTO: Accretion Flows and Winds of Pre-Main Sequence Stars Part 2 |
| 12102 | Marc Postman, Space Telescope Science Institute | Through a Lens, Darkly - New Constraints on the Fundamental Components of the Cosmos |
| 12166 | Harald Ebeling, University of Hawaii | A Snapshot Survey of The Most Massive Clusters of Galaxies |
| 12177 | Pieter van Dokkum, Yale University | 3D-HST: A Spectroscopic Galaxy Evolution Treasury |
| 12179 | Jean-Claude Bouret, CNRS, Laboratoire d'Astrophysique de Marseille | The Stellar Winds of Evolved, Braked O-Type Magnetic Oblique Rotators |
| 12181 | Drake Deming, University of Maryland | The Atmospheric Structure of Giant Hot Exoplanets |
| 12192 | James T. Lauroesch, University of Louisville Research Foundation, Inc. | A SNAPSHOT Survey of Interstellar Absorption Lines |
| 12202 | Gregory R. Sivakoff, The University of Virginia | Wide-Field Hubble Observations of NGC 1023: Testing the Origin of Low-Mass X-ray Binaries in a Lenticular Galaxy |
| 12210 | Adam S. Bolton, University of Utah | SLACS for the Masses: Extending Strong Lensing to Lower Masses and Smaller Radii |
| 12244 | Joachim Saur, Universitat zu Koeln | Mapping Ganymede's time variable aurora in the search for a subsurface ocean |
| 12246 | Christopher W. Stubbs, Harvard University | Weak Lensing Mass Calibration of SZ-Selected Clusters |
| 12278 | Thomas R. Ayres, University of Colorado at Boulder | Advanced Spectral Library Project: Cool Stars |
| 12286 | Hao-Jing Yan, University of Missouri - Columbia | Hubble Infrared Pure Parallel Imaging Extragalactic Survey {HIPPIES} |
| 12287 | Scott D. Friedman, Space Telescope Science Institute | Constraining Models of Deuterium Depletion and Galactic Chemical Evolution with Improved Measurements of D/H |
| 12292 | Tommaso L. Treu, University of California - Santa Barbara | SWELLS: doubling the number of disk-dominated edge-on spiral lens galaxies |
| 12298 | Richard S. Ellis, California Institute of Technology | Towards a Physical Understanding of the Diversity of Type Ia Supernovae |
| 12307 | Andrew J. Levan, The University of Warwick | A public SNAPSHOT survey of gamma-ray burst host galaxies |
| 12314 | Daniel Apai, University of Arizona | Mapping Brown Dwarfs: The Evolution of Cloud Properties Through the L/T Transition |
| 12322 | Kailash C. Sahu, Space Telescope Science Institute | Detecting Isolated Black Holes through Astrometric Microlensing |
| 12330 | J. Davy Kirkpatrick, California Institute of Technology | Spitzer Verification of the Coldest WISE?selected Brown Dwarfs |
| 12448 | Arlin Crotts, Columbia University in the City of New York | Towards a Detailed Understanding of T Pyx, Its Outbursts and Shell |
| 12452 | Marc Postman, Space Telescope Science Institute | Through a Lens, Darkly - New Constraints on the Fundamental Components of the Cosmos |
| 12477 | Fredrick W. High, University of Chicago | Weak lensing masses of the highest redshift galaxy clusters from the South Pole Telescope SZ survey |
| 12502 | Andrew S. Fruchter, Space Telescope Science Institute | From the Locations to the Origins of Short Gamma-Ray Bursts |
| 12514 | Karl Stapelfeldt, NASA Goddard Space Flight Center | Imaging of Newly-identified Edge-on Protoplanetary Disks in Nearby Star-Forming Regions |
| 12515 | Dougal Mackey, Australian National University | Probing the outer limits of a galactic halo - deep imaging of exceptionally remote globular clusters in M31 |
| 12520 | Charles R. Proffitt, Computer Sciences Corporation | Testing Rotational Mixing in Massive Stars: Boron in the Galactic Open Cluster NGC 3293 |
| 12673 | Howard E. Bond, Space Telescope Science Institute | HST Observations of Astrophysically Important Visual Binaries |
| 12679 | Adam Riess, The Johns Hopkins University | Luminosity-Distance Standards from Gaia and HST |
| 12725 | Harold A. Weaver, The Johns Hopkins University Applied Physics Laboratory | A Deep Search for Satellites in the Pluto System: Providing Critical, Safety-of-Flight Support to NASA's New Horizons Mission |
GO 12102: Through a Lens, Darkly - New Constraints on the Fundamental Components of the Cosmos
The ACS optical/far-red image of the galaxy cluster, Abell 2218, including an extensive number of lensed arcs |
The overwhelming majority of galaxies in the universe are found in clusters. As such, these systems offer an important means of tracing the development of large-scale structure through the history of the universe. Moreover, as intense concentrations of mass, galaxy clusters provide highly efficient gravitational lenses, capable of concentrating and magnifying light from background high redshift galaxies to allow detailed spectropic investigations of star formation in the early universe. Hubble imaging has already revealed lensed arcs and detailed sub-structure within a handful of rich clusters. At the same time, the lensing characteristics provide information on the mass distribution within the lensing cluster. The present program aims to capitalise fully on HST's imaging capabilities, utilising the refurbished Advanced Camera for Surveys and the newly-installed Wide-Field Camera 3 to obtain 17-colour imaging of 25 rich clusters. The data will be use to map the mass profiles of the clusters and probe the characteristics of the high-redshift lensed galaxies. Since ACS and WFC3 can be operated in parallel, the program will also use parallel imaging in offset fields to search for high-redshift supernovae. The present observations target the cluster MACS 2137-2353. |
GO 12177: 3D-HST: A Spectroscopic Galaxy Evolution Treasury
Part of the GOODS/Chandra Deep Field South field, as imaged by HST |
One of the exciting new capabilities offered by the post-SM4 Hubble Telescope is multi-object, low-resolution, near-infrared spectroscopy, using the two grisms available on the IR channel of Wide-Field Camera 3. These observations provide an important avenue for complementing wide-field imaging surveys. In particular, the present program aims to build on the extensive database currently being accumulated as part of the CANDELS Multi-Cycle Treasury program. CANDELS, itself, rests on past HST Treasury programs, and will provide multi-tiered imaging of five fields. 3D-HST will supplement portions of four fields (GOODS-south, AEGIS, the UDS and COSMOS fields) with WFC3/G141 and ACS/G800L grism data. The spectroscopic data will provide important additional information on the galaxy redshift distribution, and on the star formation characteristics in the redshift range 1 < z < 3.5. The data should also be useful in identifying quasars at high redshifts, potentially extending beyond z~6. |
GO 12202: Wide-Field Hubble Observations of NGC 1023: Testing the Origin of Low-Mass X-ray Binaries in a Lenticular Galaxy
The lenticular galaxy, NGC 1023 |
Low-mass X-ray binaries are generally believed to be binary systems where a compact, high-mass component, either a black hole or a neutron star, is accreting mass from a lower-mass component that is overflowing its Roche lobe. These systems are extremely luminous at short wavelengths, and are readily detected at X-ray wavelengths in nearby galaxies. The present program targets the lenticular galaxy, NGC 1023, the brightest member of the eponymous small group lying at a distance of ~10 Mpc. The Chandra satellite will be used to obtain a deep (~200 ksec) exposure that is expected to reveal ~70 field LMXBs, together with several hundred star clusters. Deep ACS imaging will be used to not only search for optical counterparts to the ray sources, but also to characterise the spatial distribution of globular clusters and open clusters. |
GO 12314: Mapping Brown Dwarfs: The Evolution of Cloud Properties Through the L/T Transition
Brown dwarfs are likely to have complex atmospheric structures that resemble Jupiter |
Brown dwarfs are failed stars - objects that form like stars, by gravitational collapse within giant molecular clouds, but which have insufficient mass to raise the central temperature above 107 K, and which therefore are unable to ignite hydrogran fusion and maintain a long-lived central energy source. As such, these objects reach a maximum surface temperature of perhaps 3,000K some tens of millions of years after their formation, and subsequently cool and fade into oblivion. As they cool, they move through spectral types M, L and T, with the oldest brown dwarfs now likely to have temperatures close to 300K and emergent spectra characterised by water and ammonia bands, the putative signatures of the spectral class Y. As these dwarfs cool from L to T (~1500 to ~1200K), the atmosopheres undergo significant changes, with heavier elements condensing to form dust. That dust can form clouds, perhaps giving the dwarf's surface a banded appearance, similar to Jupiter. The clouds themselves may appear and disappear over relatively short timescales, leading to photometric variations at particular wavelengths. The current program focuses on a handful of brown dwarfs with spextral types near the L/T transition, and uses the WFC3 grism to obtain high-accuracy monitoring of their spectral behaviour. Two of these sources will also be observed with Spitzer. |