Publications (30)
The Role of Bulge Formation in the Homogenization of Stellar Populations at as revealed by Internal Color Dispersion in CANDELS
Steven Boada, V. Tilvi, C. Papovich +13
We use data from the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey to study how the spatial variation in the stellar populations of galaxies relate to the formatio…
New insights on the Galactic Bulge Initial Mass Function
A. Calamida, K. C. Sahu, S. Casertano +15
We have derived the Galactic bulge initial mass function of the SWEEPS field in the mass range 0.15 1.0, using deep photometry collected with the Advanced Camera f…
The Evolution of Early-type Field Galaxies Selected from a NICMOS Map of the Hubble Deep Field North
S. A. Stanford, M. Dickinson, M. Postman +5
The redshift distribution of well-defined samples of distant early-type galaxies offers a means to test the predictions of monolithic and hierarchical galaxy formation scenarios. N…
ZFOURGE/CANDELS: On the Evolution of M* Galaxy Progenitors from z=3 to 0.5
Casey Papovich, I. Labbé, R. Quadri +38
Galaxies with stellar masses near M* contain the majority of stellar mass in the universe, and are therefore of special interest in the study of galaxy evolution. The Milky Way (MW…
Terrestrial Planet Finder Coronagraph (TPF-C) Flight Baseline Concept
Marie Levine, D. Lisman, S. Shaklan +52
The Terrestrial Planet Finder Coronagraph (TPF-C) mission presented here is an existence proof for a flagship-class internal coronagraph space mission capable of detecting and char…
HST/STIS observations of GRB000301C: CCD imaging and NUV MAMA spectroscopy
A. Smette, A. S. Fruchter, T. R. Gull +24
We present HST/STIS observations of the optical counterpart (OT) of the gamma-ray burster GRB 000301C obtained on 2000 March 6, five days after the burst. CCD clear aperture imagin…
Deep UV Luminosity Functions at the Infall Region of the Coma Cluster
D. M. Hammer, A. E. Hornschemeier, S. Salim +5
We have used deep GALEX observations at the infall region of the Coma cluster to measure the faintest UV luminosity functions (LFs) presented for a rich galaxy cluster thus far. Th…
GOODS-ALMA: Optically dark ALMA galaxies shed light on a cluster in formation at z = 3.5
L. Zhou, D. Elbaz, M. Franco +30
In this paper we study the properties of the six optically dark galaxies detected in the 69 arcmin^2 GOODS-ALMA 1.1mm continuum survey. While none of them are listed in the deepest…
GOODS-ALMA: Using IRAC and VLA to probe fainter millimeter galaxies
M. Franco, D. Elbaz, L. Zhou +33
In this paper, we extend the source detection in the GOODS-ALMA field (69 arcmin, rms sensitivity 0.18 mJy.beam), to deeper levels than presented in Franco…
CANDELS+3D-HST: compact SFGs at z~2-3, the progenitors of the first quiescent galaxies
G. Barro, S. M. Faber, P. G. Perez-Gonzalez +32
We analyze the star-forming and structural properties of 45 massive (log(M/Msun)>10) compact star-forming galaxies (SFGs) at 2<z<3 to explore whether they are progenitors of compac…
LSST Observing Strategy White Paper: LSST Observations of WFIRST Deep Fields
R. J. Foley, A. M. Koekemoer, D. N. Spergel +38
The Wide-Field Infrared Survey Telescope (WFIRST) is expected to launch in the mid-2020s. With its wide-field near-infrared (NIR) camera, it will survey the sky to unprecedented de…
Constraining The Assembly Of Normal And Compact Passively Evolving Galaxies From Redshift z=3 To The Present With CANDELS
P. Cassata, M. Giavalisco, C. C. Williams +16
We study the evolution of the number density, as a function of the size, of passive early-type galaxies with a wide range of stellar masses 10^10<M*/Msun<10^11.5) from z~3 to z~1,…
GOODS-ALMA: The slow downfall of star-formation in = 2-3 massive galaxies
M. Franco, D. Elbaz, L. Zhou +34
We investigate the properties of a sample of 35 galaxies, detected with ALMA at 1.1 mm in the GOODS-ALMA field (area of 69 arcmin, resolution = 0.60", RMS 0.18 mJy bea…
HST Observations of the Host Galaxy of GRB970508
A. S. Fruchter, E. Pian, R. Gibbons +13
We report on observations of the field of GRB~970508 made in early August 1998, 454 days after outburst, with the STIS CCD camera onboard the Hubble Space Telescope. The images, ta…
The Fading Optical Counterpart of GRB~970228, Six Months and One Year Later
A. S. Fruchter, E. Pian, S. E. Thorsett +20
We report on observations of the fading optical counterpart of the gamma-ray burst GRB 970228, made with the Hubble Space Telescope STIS CCD approximately six months after outburst…
Faint AGNs at z>4 in the CANDELS GOODS-S field: looking for contributors to the reionization of the Universe
E. Giallongo, A. Grazian, F. Fiore +14
In order to derive the AGN contribution to the cosmological ionizing emissivity we have selected faint AGN candidates at in the CANDELS GOODS-South field which is one of the…
The Far-Ultraviolet Continuum Slope as a Lyman Continuum Escape Estimator at High-redshift
J. Chisholm, A. Saldana-Lopez, S. Flury +25
Most of the hydrogen in the intergalactic medium (IGM) was rapidly ionized at high-redshifts. While observations have established that reionization occurred, observational constrai…
The white dwarf cooling sequence of the Galactic bulge
A. Calamida, K. Sahu, J. Anderson +9
We collected F606W- and F814W-band time-series data of the Sagittarius low-reddening window in the Galactic bulge with the Advanced Camera far Surveys mounted on the Hubble Space T…
X-ray selected AGN Hosts are Similar to Inactive Galaxies out to z=3: Results from CANDELS/CDF-S
D. J. Rosario, M. Mozena, S. Wuyts +18
We use multi-band spatially resolved photometry from the Cosmic Assembly Near-IR Deep Legacy Survey (CANDELS) in the 4 MSec Chandra Deep Field-South (CDF-S) to explore the nuclear…
The Stellar Initial Mass Function of Ultra-Faint Dwarf Galaxies: Evidence for IMF Variations with Galactic Environment
M. Geha, T. M. Brown, J. Tumlinson +8
We present constraints on the stellar initial mass function (IMF) in two ultra-faint dwarf (UFD) galaxies, Hercules and Leo IV, based on deep HST/ACS imaging. The Hercules and Leo…
The population of BzK selected ULIRGs at z~2
E. Daddi, M. Dickinson, R. Chary +10
We investigate the multi-wavelength emission of BzK selected star forming galaxies at z~2 in the Great Observatories Origins Deep Survey (GOODS) North region. Most (82%) of the sou…
GOODS-ALMA: 1.1 mm galaxy survey - I. Source catalogue and optically dark galaxies
M. Franco, D. Elbaz, M. Béthermin +36
We present a 69 arcmin ALMA survey at 1.1mm, GOODS-ALMA, matching the deepest HST-WFC3 H-band part of the GOODS-South field. We taper the 0"24 original image with a homogeneous…
First Detection of the White-Dwarf Cooling Sequence of the Galactic Bulge
A. Calamida, K. C. Sahu, J. Anderson +13
We present Hubble Space Telescope data of the low-reddening Sagittarius window in the Galactic bulge. The Sagittarius Window Eclipsing Extrasolar Planet Search field (3'x3'), toget…
A mass threshold in the number density of passive galaxies at z2
V. Sommariva, A. Fontana, A. Lamastra +16
The process that quenched star formation in galaxies at intermediate and high redshift is still the subject of considerable debate. One way to investigate this puzzling issue is to…
The Morphology of Passively Evolving Galaxies at z ~ 2 from HST/WFC3 Deep Imaging in the Hubble Ultradeep Field
P. Cassata, M. Giavalisco, Yicheng Guo +15
We present near-IR images, obtained with the Hubble Space Telescope (HST) and the WFC3/IR camera, of six passive and massive galaxies at redshift 1.3<z<2.4 (SSFR<10^{-2} Gyr^{-1};…
Exoplanet Characterization and the Search for Life
J. Kasting, W. Traub, A. Roberge +119
Over 300 extrasolar planets (exoplanets) have been detected orbiting nearby stars. We now hope to conduct a census of all planets around nearby stars and to characterize their atmo…
The Great Observatories Origins Deep Survey: Constraints on the Lyman Continuum Escape Fraction Distribution of Lyman--Break Galaxies at 3.4<z<4.5
E. Vanzella, M. Giavalisco, A. Inoue +13
We use ultra-deep ultraviolet VLT/VIMOS intermediate-band and VLT/FORS1 narrow-band imaging in the GOODS Southern field to derive limits on the distribution of the escape fraction…
The Hubble Higher-Z Supernova Search: Supernovae to z=1.6 and Constraints on Type Ia Progenitor Models
L. -G. Strolger, A. G. Riess, T. Dahlen +33
We present results from the Hubble Higher-z Supernova Search, the first space-based open field survey for supernovae (SNe). In cooperation with the Great Observatories Origins Deep…
Ubiquitous broad-line emission and the relation between ionized gas outflows and Lyman continuum escape in Green Pea galaxies
R. O. AmorÃn, M. RodrÃguez-HenrÃquez, V. Fernández +29
We report observational evidence of highly turbulent ionized gas kinematics in a sample of 20 Lyman continuum (LyC) emitters (LCEs) at low redshift (). Detailed Gaussian…
The relative abundance of compact and normal massive early-type galaxies and its evolution from redshift z~2 to the present
P. Cassata, M. Giavalisco, Yicheng Guo +11
We report on the evolution of the number density and size of early-type galaxies from z~2 to z~0. We select a sample of 563 massive (M>10^{10} Msun), passively evolving (SSFR<10^{-…