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21 papers
An Attenuation Bump at z=9.3: Probing Dust Diversity at Cosmic Dawn
Giulia Rodighiero, Santiago Álvarez-Córdoba, Michele Catone +46
We report the identification of a UV attenuation bump in the Black Pearl, a galaxy at a spectroscopic redshift of 9.3335 observed with JWST/NIRSpec as part of the ZENITH and EMBER…
An empirical derivation of the average dust attenuation law at 2<z<7
Giulia Rodighiero, Gaia Edes Esposito, Daniela Calzetti +12
Dust attenuation affects galaxy SEDs and introduces uncertainties in star formation rates, stellar masses, and metallicities. Direct spectroscopic constraints at early cosmic epoch…
The Role of Spiral Arms in Galaxies II: Similarities Amid Diversity
Bingqing Sun, Daniela Calzetti, Andrew J. Battisti
The role of spiral arms in galaxies -- whether they enhance star formation efficiency or primarily act as material gatherers -- remains an open question. Observational studies have…
H Morphologies of Star Clusters in 16 LEGUS Galaxies: Constraints on HII region evolution timescales
Stephen Hannon, Janice C. Lee, Bradley C. Whitmore +14
The analysis of star cluster ages in tandem with the morphology of their HII regions can provide insight into the processes that clear a cluster's natal gas, as well as the accurac…
Advanced Technology Large-Aperture Space Telescope (ATLAST): A Technology Roadmap for the Next Decade
Marc Postman, Vic Argabright, Bill Arnold +65
The Advanced Technology Large-Aperture Space Telescope (ATLAST) is a set of mission concepts for the next generation of UVOIR space observatory with a primary aperture diameter in…
The COSMOS Survey: Hubble Space Telescope / Advanced Camera for Surveys (HST/ACS) Observations and Data Processing
A. M. Koekemoer, H. Aussel, D. Calzetti +11
We describe the details of the Hubble Space Telescope (HST) Advanced Camera for Surveys / Wide Field Channel (ACS/WFC) observations of the COSMOS field, including the data calibrat…
The Spitzer Legacy Survey of the HST-ACS 2 sq. deg. COSMOS Field: survey strategy and first analysis
D. B. Sanders, M. Salvato, H. Aussel +39
The Spitzer-COSMOS survey (S-COSMOS) is a Legacy program (Cycles 2+3) designed to carry out a uniform deep survey of the full 2 sq deg COSMOS field in all seven Spitzer bands (3.6,…
COSMOS : Hubble Space Telescope Observations
N. Scoville, A. Benson, A. W. Blain +50
The Cosmic Evolution Survey (COSMOS) was initiated with an extensive allocation (590 orbits in Cycles 12-13) using the Hubble Space Telescope (HST) for high resolution imaging. Her…
The Mid-Infrared Spectrum of Star-Forming Galaxies: Global Properties of PAH Emission
J. D. T. Smith, B. T. Draine, D. A. Dale +15
We present a sample of low-resolution 5-38um Spitzer IRS spectra of the inner few square kiloparsecs of 59 nearby galaxies spanning a large range of star formation properties. A ro…
The Effect of Star Formation on the Far-Infrared--Radio Correlation within Galaxies
E. J. Murphy, G. Helou, R. Braun +13
Using data obtained for twelve galaxies as part of the {\it Spitzer} Infrared Nearby Galaxies Survey (SINGS) and the Westerbork Synthesis Radio Telescope (WSRT)-SINGS radio continu…
An Atlas of STIS-HST Spectra of Seyfert Galaxies
P. F. Spinelli, T. Storchi-Bergmann, C. H. Brandt +1
We present a compilation of spectra of 101 Seyfert galaxies obtained with the Space Telescope Imaging Spectrograph (HST-STIS), covering the UV and/or optical spectral range. Inform…
Spatially Resolved Ultraviolet, H-alpha, Infrared, and Radio Star Formation in M81
K. D. Gordon, P. G. Perez-Gonzalez, K. A. Misselt +26
We present Multiband Imaging Photometer for Spitzer (MIPS) observations of M81 at 24, 70, and 160 micron. The grand design nature of M81 is clearly seen, showing two well resolved…
SINGS: The SIRTF Nearby Galaxies Survey
R. C. Kennicutt, L. Armus, G. Bendo +20
The SIRTF Nearby Galaxy Survey is a comprehensive infrared imaging and spectroscopic survey of 75 nearby galaxies. Its primary goal is to characterize the infrared emission of gala…
On the Escape of Ionizing Radiation from Starbursts
T. Heckman, K. R. Sembach, G. Meurer +3
Far-ultraviolet spectra obtained with show that the strong 1036 interstellar absorption-line is essentially black in five of the UV-brightest local starburst galaxies.…
FUSE Observations of Outflowing OVI in the Dwarf Starburst Galaxy NGC1705
T. M. Heckman, K. R. Sembach, G. R. Meurer +4
We report FUSE far-UV spectroscopy of the prototypical dwarf starburst galaxy NGC 1705. These data allow us for the first time to probe the coronal-phase gas (T = 10E5 to 10E6 K) t…
Star Formation in the Field and Clusters of NGC 5253
C. A. Tremonti, D. Calzetti, C. Leitherer +1
We investigate the star formation history of both the bright star clusters and the diffuse `field star' population in the dwarf starburst galaxy NGC 5253 using STIS longslit ultrav…
The Properties of High Redshift Galaxies
D. Calzetti, M. Giavalisco
In recent years, a variety of techniques at optical, near-infrared, sub-mm, and radio wavelengths have opened complementary windows on the high-redshift Universe. Here we review th…
HST NICMOS Imaging of z ~ 2 to 3 radio-quiet quasars
S. Ridgway, T. Heckman, D. Calzetti +1
We will present the results of a NICMOS H-band imaging survey of a small sample of z ~ 2 to 3 radio-quiet quasars. We have resolved extension in at least 4 of 5 objects and find ev…
Chemically Consistent Evolutionary Models with Dust
C. S. Möller, U. Fritze-v. Alvensleben, K. J. Fricke +1
As a tool to interpret nearby and high redshift galaxy data from optical to K-band we present our chemically consistent spectrophotometric evolutionary synthesis models. These mode…
The NICMOS Snapshot Survey of nearby Galaxies
T. Boeker, D. Calzetti, W. Sparks
We present ``snapshot'' observations with the NearInfrared Camera and MultiObject Spectrometer (NICMOS) on board the Hubble Space Telescope (HST) of 94 nearby galaxies from the Rev…
Calibrating UV Emissivity And Dust Absorption At z \approx 3
Gerhardt R. Meurer, Timothy M. Heckman, Daniela Calzetti
We detail a technique for estimating the UV extinction and luminosity of UV selected galaxies using UV quantities alone. The technique is based on a tight correlation between the r…