Cosmology at low frequencies: The 21 cm transition and the high-redshift Universe
- S. Furlanetto, S. Oh, F. Briggs
- Physics
- 1 August 2006
COSMIC REIONIZATION AND EARLY STAR-FORMING GALAXIES: A JOINT ANALYSIS OF NEW CONSTRAINTS FROM PLANCK AND THE HUBBLE SPACE TELESCOPE
- B. Robertson, R. Ellis, S. Furlanetto, J. Dunlop
- Physics
- 6 February 2015
We discuss new constraints on the epoch of cosmic reionization and test the assumption that most of the ionizing photons responsible arose from high-redshift star-forming galaxies. Good progress has…
NEW CONSTRAINTS ON COSMIC REIONIZATION FROM THE 2012 HUBBLE ULTRA DEEP FIELD CAMPAIGN
- B. Robertson, S. Furlanetto, M. Cirasuolo
- Physics
- 7 January 2013
Understanding cosmic reionization requires the identification and characterization of early sources of hydrogen-ionizing photons. The 2012 Hubble Ultra Deep Field (UDF12) campaign has acquired the…
The Growth of H II Regions During Reionization
- S. Furlanetto, M. Zaldarriaga, L. Hernquist
- Physics
- 31 March 2004
Recently, there has been a great deal of interest in understanding the reionization of hydrogen in the intergalactic medium (IGM). One of the major outstanding questions is how this event proceeds on…
A new multifield determination of the galaxy luminosity function at z = 7-9 incorporating the 2012 Hubble Ultra-Deep Field imaging
- R. McLure, J. Dunlop, T. Targett
- Physics
- 20 December 2012
We present a new determination of the ultraviolet (UV) galaxy luminosity function (LF) at redshift z ≃ 7 and 8, and a first estimate at z ≃ 9. An accurate determination of the form and evolution of…
Cosmological Parameter Estimation Using 21 cm Radiation from the Epoch of Reionization
- M. McQuinn, O. Zahn, M. Zaldarriaga, L. Hernquist, S. Furlanetto
- Physics
- 12 December 2005
A number of radio interferometers are currently being planned or constructed to observe 21 cm emission from reionization. Not only will such measurements provide a detailed view of that epoch, but,…
The global 21-centimeter background from high redshifts
- S. Furlanetto
- Physics
- 3 April 2006
We consider the evolution of the sky-averaged 21-cm background during the early phases of structure formation. Using simple analytic models, we calculate the thermal and ionization histories,…
THE ABUNDANCE OF STAR-FORMING GALAXIES IN THE REDSHIFT RANGE 8.5–12: NEW RESULTS FROM THE 2012 HUBBLE ULTRA DEEP FIELD CAMPAIGN
- R. Ellis, R. McLure, M. Cirasuolo
- Physics
- 29 November 2012
We present the results of the deepest search to date for star-forming galaxies beyond a redshift z ≃ 8.5 utilizing a new sequence of near-infrared Wide-Field Camera 3 (WFC3/IR) images of the Hubble…
21cmfast: a fast, seminumerical simulation of the high‐redshift 21‐cm signal
- A. Mesinger, S. Furlanetto, R. Cen
- Physics
- 19 March 2010
We introduce a powerful semi-numeric modeling tool, 21cmFAST, designed to efficiently simulate the cosmological 21-cm signal. Our code generates 3D realizations of evolved density, ionization,…
Simulations and Analytic Calculations of Bubble Growth during Hydrogen Reionization
- O. Zahn, A. Lidz, S. Furlanetto
- Physics
- 11 April 2006
We present results from a large volume simulation of hydrogen reionization. We combine 3D radiative transfer calculations and an N-body simulation, describing structure formation in the intergalactic…
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