| Program Number | Principal Investigator | Program Title |
|---|---|---|
| 13297 | Giampaolo Piotto, Universita degli Studi di Padova | The HST Legacy Survey of Galactic Globular Clusters: Shedding UV Light on Their Populations and Formation |
| 13498 | Jennifer Lotz, Space Telescope Science Institute | HST Frontier Fields - Observations of MACSJ0717.5+3745 |
| 13653 | Caitlin Ann Griffith, University of Arizona | Elementary Abundances of Planetary Systems |
| 13655 | Matthew Hayes, Stockholm University | How Lyman alpha bites/beats the dust |
| 13657 | Jeyhan Kartaltepe, National Optical Astronomy Observatory, AURA | Probing the Most Luminous Galaxies in the Universe at the Peak of Galaxy Assembly |
| 13662 | Aaron J. Barth, University of California - Irvine | Measuring the Black Hole Mass in the Brightest Cluster Galaxy NGC 1275 |
| 13677 | Saul Perlmutter, University of California - Berkeley | See Change: Testing time-varying dark energy with z>1 supernovae and their massive cluster hosts |
| 13679 | Lorenz Roth, Royal Institute of Technology | Europa's Water Vapor Plumes: Systematically Constraining their Abundance and Variability |
| 13690 | Tanio Diaz-Santos, California Institute of Technology | Tracking the Obscured Star Formation Along the Complete Evolutionary Merger Sequence of LIRGs |
| 13691 | Wendy L. Freedman, University of Chicago | CHP-II: The Carnegie Hubble Program to Measure Ho to 3% Using Population II |
| 13695 | Benne W. Holwerda, Sterrewacht Leiden | STarlight Absorption Reduction through a Survey of Multiple Occulting Galaxies (STARSMOG) |
| 13697 | Vianney Lebouteiller, CEA/DSM/Irfu/Service d'Astrophysique - Laboratoire AIM | Does star formation proceed differently in metal-poor galaxies? |
| 13703 | Lida Oskinova, Universitat Potsdam | The donor star winds in High-Mass X-ray Binaries |
| 13711 | Abhijit Saha, National Optical Astronomy Observatory, AURA | Establishing a Network of Next Generation SED standards with DA White Dwarfs |
| 13721 | Robert A. Benjamin, University of Wisconsin - Whitewater | The Windy Milky Way Galaxy |
| 13723 | Bruce Elmegreen, IBM T.J. Watson Research Center | Multiband Observations of a Local Tadpole Galaxy |
| 13728 | Steven Kraemer, Catholic University of America | Do QSO2s have Narrow Line Region Outflows? Implications for quasar-mode feedback |
| 13734 | Veronique Petit, Florida Institute of Technology | Probing the extreme wind confinement of the most magnetic O star with COS spectroscopy |
| 13741 | Thaisa Storchi-Bergmann, Universidade Federal do Rio Grande do Sul | Constraining the structure of the Narrow-Line Region of nearby QSO2s |
| 13750 | John M. Cannon, Macalester College | Fundamental Parameters of the SHIELD II Galaxies |
| 13760 | Derck L. Massa, Space Science Institute | Filling the gap --near UV, optical and near IR extinction |
| 13761 | Stephan Robert McCandliss, The Johns Hopkins University | High efficiency SNAP survey for Lyman alpha emitters at low redshift |
| 13773 | Rupali Chandar, University of Toledo | H-alpha LEGUS: Unveiling the Interplay Between Stars, Star Clusters, and Ionized Gas |
| 13776 | Michael D. Gregg, University of California - Davis | Completing The Next Generation Spectral Library |
| 13779 | Sangeeta Malhotra, Arizona State University | The Faint Infrared Grism Survey (FIGS) |
| 13805 | Kurt D. Retherford, Southwest Research Institute | Io's Atmosphere Silhouetted in Transit by Jupiter Lyman-alpha |
| 13826 | Massimo Robberto, Space Telescope Science Institute | The Orion Nebula Cluster as a Paradigm of Star Formation |
| 13845 | Adam Muzzin, Sterrewacht Leiden | Resolved H-alpha Maps of Star-forming Galaxies in Distant Clusters: Towards a Physical Model of Satellite Galaxy Quenching |
| 13858 | Annalisa De Cia, Weizmann Institute of Science | The environment of the rarest and most energetic supernovae: do pair-instability explosions exist in the nearby Universe? |
| 13872 | Pascal Oesch, Yale University | The GOODS UV Legacy Fields: A Full Census of Faint Star-Forming Galaxies at z~0.5-2 |
| 13943 | Amy E. Reines, University of Michigan | Probing the Growth of Massive Black Holes in Dwarf Galaxies with Chandra and HST |
GO 13297: The HST Legacy Survey of Galactic Globular Clusters: Shedding UV Light on Their Populations and Formation
Hubble image of the metal-poor globular cluster, M15 |
Globular clusters are members of the Galactic halo population, representing remnants from the first extensive period of star formation in the Milky Way. As such, the properties of the 106 to 107 stellar constituents can provide crucial insight into the earliest stages of galaxy formation. Until recently, conventional wisdom was that these are simple systems, where all the stars formed in a single starburst and, as a consequence, have the same age and metallicity. One of the most surprising disoveries in recent years is the realisation that this simple picture no longer holds. Up until about 5 years ago, the only known counter-example to convention was the cluster Omega Centauri, which is significantly more massive than most clusters and has both a complex main sequence structure and a range of metallicities among the evolved stars. High precision photometric observations with HST has demonstrated that Omega Cen is far from unique, with multiple populations evident in numerous other clusters, including NGC 2808, NGC 1851, 47 Tuc and NGC 6752. Multiple populations have also been discerned in a number of clusters in the Magellanic clouds. Sustaining multiple bursts of star formation within these systems demands that they retain gas beyond the first star forming event, which appears to set a requirement that these clusters were significantly more massive during their epoch of formation; put another way, the current globulars may represent the remnant cores of dwarf galaxy-like systems. That, in turn, implies that the stars ejected from those systems make a significant contribution to the current galactic halo. One of the most effective means of identifying and studying multi-population clusters is combining high-precision photometry over a wide wavelength range, particularly extending to UV wavelengths. Sixty-five globular clusters already have R/I (F606W, F814W) Hubble imaging and photometry thanks to the Cycle 14 program, An ACS Survey of Galactic Globular Clusters (GO 10775). The present program aims to build on those data by adding UV/blue observations using the F275W, F336W and F438W filters on the WFC3-UVIS camera. The colorus derived from these filters enable characterisation of the C, N and O abundances of the component stellar populations in these systems. |
GO 13657: Probing the Most Luminous Galaxies in the Universe at the Peak of Galaxy Assembly
Hubble ACS image of the GOODS field
Deep imaging with the Hubble Space Telescope and Spitzer have shown that the peak star formation epoch for
galaxy evolution lay arond redshift z~2. The most luminous galaxies at that epoch are luminous, ultraluminous
and hyperluminous infrared galaxies (LIRGs and ULIRGs). These are systems that have total luminosities that exceed
1011.4 LSun (LIRGs),10112 LSun (ULIRGs), or 1013 LSun (HyLIRGs),
with most energy emitted at wavelengths longward
of 10 microns. Some of these systems are interacting or merging disk
galaxies, with the excess infrared luminosity generated by warm dust associated with
the extensive star formation regions. There is some controversy, however, regarding whether mergers are the only
means of producing such systems, or whether teady processes, such as accretion of cold gas along filaments, might
also produce very high luminosity, star-formign systems. The present program aims to tackle this
question through high-resolution near-infrared imaging of HyLIRGS with the WFC3-IR camera, searching for unambiguous merger
signatures. Those observations will be combined with kinematic data obtained with ground-based Integral Field Units to
determine the likely fraction of mergers among these systems.
GO 13779: The Faint infrared Grism Survey (FIGS)
Grism spectra from the CANDELS program |
One of the exciting 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. Those observations provide an important avenue for complementing the various dep imaging surveys undertaken by HST. The 3D-HST program used relatively shallow observations to observe a significant fraction of the area covered by the CANDELS Multi-Cycle Treasury program. The present program, FIGS, targets only 4 fields, split between GOODS South and GOODS North, but with integrations totalling 40 orbits for each field. As a consequence, the observations will have significantly greater sensitivity, with the potential of measuring Lyman-alpha emission from galaxies at redshifts 5.5 < z < 8.5. The spectroscopic data will provide important additional information on the galaxy redshift distribution, on the formation of early-type galaxies at 1 < z < 2 and the evolution of star formation for moderate luminosity galaxies at z > 1. |
GO 13805: Io's Atmosphere Silhouetted in Transit by Jupiter Lyman-alpha
Io in transit across Jupiter, as seen by Cassini |
> | Io is the innermost of Jupiter's four Galilean satellites. As a consequence, it is subject to signficat tidal stress leading to substantial heating of the interior and the presence of more than 400 active volcanoes. Those volcanoes eject material that sublimates and produce local gas plumes that lead to Io having a diffuse atmosphere. The present program aims to probe the relative improtance of those mechanisms by using HST to observe Io in transit. The Space Telescope Imagign Spectrograph will be used to probe the spatial distribution of SO2: volcanic gas plumes should be evident as absorption features, silhouetted against the Jovian background. |