The Properties of Galaxies in the First Billion Years, as Revealed by the Hubble Ultra Deep Field 2012

James Dunlop; R. McLure; S. Rogers; Y. Ono; M. Ouchi; A. M. Koekemoer; R. S. Ellis; M. Schenker; B. E. Robertson; [No Value] UDF12 Team

Abstract

The Hubble Space Telescope (HST) Ultra Deep Field 2012 (UDF12) provides the deepest near-infrared imaging to date of the high redshift Universe. By effectively doubling the depth of the Wide Field Camera 3 near-infrared imaging in the UDF, with valuable diagnostic imaging through a new additional filter, the UDF12 program considerably enhances our understanding of the rest-frame UV properties of star-forming galaxies in the crucial redshift range z=7-10 when the reionization process is ending. We present the first unbiased measurements of the UV continuum slopes of galaxies at z=7 (and the first meaningful measures at z=8), thereby setting new constraints on the age, metallicity and ionizing photon escape fractions for early galaxies . We also present new results on the sizes of these primeval galaxies with more accuracy than hitherto, and set new constraints on their stellar masses. These new measurements of the physical properties of the emerging population of young galaxies are compared with the predictions of the latest theoretical models of galaxy formation.

Original language	English
Publication status	Published - 1 Jan 2013
Event	AAS, 221st Meeting of the American Astronomical Society - California, Long Beach, United Kingdom Duration: 6 Jan 2013 → 10 Jan 2013

Conference

Conference	AAS, 221st Meeting of the American Astronomical Society
Country/Territory	United Kingdom
City	Long Beach
Period	6/01/13 → 10/01/13

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http://adsabs.harvard.edu/abs/2013AAS...22120704D

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Dunlop, J., McLure, R., Rogers, S., Ono, Y., Ouchi, M., Koekemoer, A. M., Ellis, R. S., Schenker, M., Robertson, B. E., & UDF12 Team, N. V. (2013). The Properties of Galaxies in the First Billion Years, as Revealed by the Hubble Ultra Deep Field 2012. Abstract from AAS, 221st Meeting of the American Astronomical Society, Long Beach, United Kingdom. http://adsabs.harvard.edu/abs/2013AAS...22120704D

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title = "The Properties of Galaxies in the First Billion Years, as Revealed by the Hubble Ultra Deep Field 2012",

abstract = "The Hubble Space Telescope (HST) Ultra Deep Field 2012 (UDF12) provides the deepest near-infrared imaging to date of the high redshift Universe. By effectively doubling the depth of the Wide Field Camera 3 near-infrared imaging in the UDF, with valuable diagnostic imaging through a new additional filter, the UDF12 program considerably enhances our understanding of the rest-frame UV properties of star-forming galaxies in the crucial redshift range z=7-10 when the reionization process is ending. We present the first unbiased measurements of the UV continuum slopes of galaxies at z=7 (and the first meaningful measures at z=8), thereby setting new constraints on the age, metallicity and ionizing photon escape fractions for early galaxies . We also present new results on the sizes of these primeval galaxies with more accuracy than hitherto, and set new constraints on their stellar masses. These new measurements of the physical properties of the emerging population of young galaxies are compared with the predictions of the latest theoretical models of galaxy formation.",

author = "James Dunlop and R. McLure and S. Rogers and Y. Ono and M. Ouchi and Koekemoer, {A. M.} and Ellis, {R. S.} and M. Schenker and Robertson, {B. E.} and {UDF12 Team}, {[No Value]}",

year = "2013",

month = jan,

day = "1",

language = "English",

note = "AAS, 221st Meeting of the American Astronomical Society ; Conference date: 06-01-2013 Through 10-01-2013",

}

Dunlop, J , McLure, R, Rogers, S, Ono, Y, Ouchi, M, Koekemoer, AM, Ellis, RS, Schenker, M, Robertson, BE & UDF12 Team, NV 2013, 'The Properties of Galaxies in the First Billion Years, as Revealed by the Hubble Ultra Deep Field 2012', AAS, 221st Meeting of the American Astronomical Society, Long Beach, United Kingdom, 6/01/13 - 10/01/13. <http://adsabs.harvard.edu/abs/2013AAS...22120704D>

TY - CONF

T1 - The Properties of Galaxies in the First Billion Years, as Revealed by the Hubble Ultra Deep Field 2012

AU - Dunlop, James

AU - McLure, R.

AU - Rogers, S.

AU - Ono, Y.

AU - Ouchi, M.

AU - Koekemoer, A. M.

AU - Ellis, R. S.

AU - Schenker, M.

AU - Robertson, B. E.

AU - UDF12 Team, [No Value]

PY - 2013/1/1

Y1 - 2013/1/1

N2 - The Hubble Space Telescope (HST) Ultra Deep Field 2012 (UDF12) provides the deepest near-infrared imaging to date of the high redshift Universe. By effectively doubling the depth of the Wide Field Camera 3 near-infrared imaging in the UDF, with valuable diagnostic imaging through a new additional filter, the UDF12 program considerably enhances our understanding of the rest-frame UV properties of star-forming galaxies in the crucial redshift range z=7-10 when the reionization process is ending. We present the first unbiased measurements of the UV continuum slopes of galaxies at z=7 (and the first meaningful measures at z=8), thereby setting new constraints on the age, metallicity and ionizing photon escape fractions for early galaxies . We also present new results on the sizes of these primeval galaxies with more accuracy than hitherto, and set new constraints on their stellar masses. These new measurements of the physical properties of the emerging population of young galaxies are compared with the predictions of the latest theoretical models of galaxy formation.

AB - The Hubble Space Telescope (HST) Ultra Deep Field 2012 (UDF12) provides the deepest near-infrared imaging to date of the high redshift Universe. By effectively doubling the depth of the Wide Field Camera 3 near-infrared imaging in the UDF, with valuable diagnostic imaging through a new additional filter, the UDF12 program considerably enhances our understanding of the rest-frame UV properties of star-forming galaxies in the crucial redshift range z=7-10 when the reionization process is ending. We present the first unbiased measurements of the UV continuum slopes of galaxies at z=7 (and the first meaningful measures at z=8), thereby setting new constraints on the age, metallicity and ionizing photon escape fractions for early galaxies . We also present new results on the sizes of these primeval galaxies with more accuracy than hitherto, and set new constraints on their stellar masses. These new measurements of the physical properties of the emerging population of young galaxies are compared with the predictions of the latest theoretical models of galaxy formation.

M3 - Abstract

T2 - AAS, 221st Meeting of the American Astronomical Society

Y2 - 6 January 2013 through 10 January 2013

ER -

The Properties of Galaxies in the First Billion Years, as Revealed by the Hubble Ultra Deep Field 2012

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