Search Publications
Through the Looking GLASS: HST Spectroscopy of Faint Galaxies Lensed by the Frontier Fields Cluster MACSJ0717.5+3745
Malkan, M. A.; Poggianti, B.; Vulcani, B. +18 more
The Grism Lens-Amplified Survey from Space (GLASS) is a Hubble Space Telescope (HST) Large Program, which will obtain 140 orbits of grism spectroscopy of the core and infall regions of 10 galaxy clusters, selected to be among the very best cosmic telescopes. Extensive HST imaging is available from many sources including the CLASH and Frontier Fiel…
H2O Abundances in the Atmospheres of Three Hot Jupiters
Deming, Drake; Madhusudhan, Nikku; Crouzet, Nicolas +2 more
The core accretion theory for giant planet formation predicts enrichment of elemental abundances in planetary envelopes caused by runaway accretion of planetesimals, which is consistent with measured super-solar abundances of C, N, P, S, Xe, and Ar in Jupiter's atmosphere. However, the abundance of O, which is expected to be the most dominant cons…
Dust and Gas in the Magellanic Clouds from the HERITAGE Herschel Key Project. II. Gas-to-dust Ratio Variations across Interstellar Medium Phases
Gordon, Karl D.; Bot, Caroline; Lebouteiller, Vianney +32 more
The spatial variations of the gas-to-dust ratio (GDR) provide constraints on the chemical evolution and lifecycle of dust in galaxies. We examine the relation between dust and gas at 10-50 pc resolution in the Large and Small Magellanic Clouds (LMC and SMC) based on Herschel far-infrared (FIR), H I 21 cm, CO, and Hα observations. In the diffuse at…
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: signs of neutrino mass in current cosmological data sets
Ross, Nicholas P.; Brownstein, Joel R.; Schneider, Donald P. +12 more
We investigate the cosmological implications of the latest growth of structure measurement from the Baryon Oscillation Spectroscopic Survey (BOSS) CMASS Data Release 11 with particular focus on the sum of the neutrino masses, ∑mν. We examine the robustness of the cosmological constraints from the baryon acoustic oscillation (BAO) scale,…
Planck 2013 results. VIII. HFI photometric calibration and mapmaking
Kneissl, R.; Miville-Deschênes, M. -A.; Boulanger, F. +226 more
This paper describes the methods used to produce photometrically calibrated maps from the Planck High Frequency Instrument (HFI) cleaned, time-ordered information. HFI observes the sky over a broad range of frequencies, from 100 to 857 GHz. To obtain the best calibration accuracy over such a large range, two different photometric calibration schem…
Non-Bunch-Davis initial state reconciles chaotic models with BICEP and Planck
Ashoorioon, Amjad; Dimopoulos, Konstantinos; Sheikh-Jabbari, Mohammad M. +1 more
The BICEP2 experiment has announced a signal for primordial gravity waves with tensor-to-scalar ratio r =0.2-0.05+0.07[1]. There are two ways to reconcile this result with the latest Planck experiment [2]. One is by assuming that there is a considerable tilt of r, Tr, with a positive sign, Tr = dln r /…
Hubble Frontier Fields: a high-precision strong-lensing analysis of galaxy cluster MACSJ0416.1-2403 using ∼200 multiple images
Kneib, J. -P.; Egami, E.; Eckert, D. +11 more
We present a high-precision mass model of the galaxy cluster MACSJ0416.1-2403, based on a strong-gravitational-lensing analysis of the recently acquired Hubble Space Telescope Frontier Fields (HFF) imaging data. Taking advantage of the unprecedented depth provided by HST/Advanced Camera for Survey observations in three passbands, we identify 51 ne…
Galaxy Zoo: an independent look at the evolution of the bar fraction over the last eight billion years from HST-COSMOS
Schawinski, Kevin; Bamford, Steven P.; Nichol, Robert C. +11 more
We measure the redshift evolution of the bar fraction in a sample of 2380 visually selected disc galaxies found in Cosmic Evolution Survey (COSMOS) Hubble Space Telescope (HST) images. The visual classifications used both to identify the disc sample and to indicate the presence of stellar bars were provided by citizen scientists via the Galaxy Zoo…
The Herschel Stripe 82 Survey (HerS): Maps and Early Catalog
Doré, O.; Scott, D.; Jogee, S. +36 more
We present the first set of maps and band-merged catalog from the Herschel Stripe 82 Survey (HerS). Observations at 250, 350, and 500 µm were taken with the Spectral and Photometric Imaging Receiver instrument aboard the Herschel Space Observatory. HerS covers 79 deg2 along the SDSS Stripe 82 to an average depth of 13.0, 12.9, and…
Reconstructing the density and temperature structure of prestellar cores from Herschel data: A case study for B68 and L1689B
Abergel, A.; Hill, T.; Roussel, H. +22 more
Utilizing multiwavelength dust emission maps acquired with Herschel, we reconstruct local volume density and dust temperature profiles for the prestellar cores B68 and L1689B using an inverse-Abel transform-based technique. We present intrinsic radial dust temperature profiles of starless cores directly from dust continuum emission maps disentangl…