Young Galaxy Candidates in the Hubble Frontier Fields. IV. MACS J1149.5+2223

Wei Zheng; Adi Zitrin; Leopoldo Infante; Nicolas Laporte; Xingxing Huang; John Moustakas; Holland C. Ford; Xinwen Shu; Junxian Wang; Jose M. Diego; Franz E. Bauer; Paulina Troncoso Iribarren; Tom Broadhurst; Alberto Molino

doi:10.3847/1538-4357/aa5d55

Young Galaxy Candidates in the Hubble Frontier Fields. IV. MACS J1149.5+2223

Wei Zheng, Adi Zitrin, Leopoldo Infante, Nicolas Laporte, Xingxing Huang, John Moustakas, Holland C. Ford, Xinwen Shu, Junxian Wang, Jose M. Diego, Franz E. Bauer, Paulina Troncoso Iribarren, Tom Broadhurst, Alberto Molino

Department of Physics

Ben-Gurion University of the Negev

Research output: Contribution to journal › Article › peer-review

Abstract

We search for high-redshift dropout galaxies behind the Hubble Frontier Fields (HFF) galaxy cluster MACS J1149.5+2223, a powerful cosmic lens that has revealed a number of unique objects in its field. Using the deep images from the Hubble and Spitzer space telescopes, we find 11 galaxies at z > 7 in the MACS J1149.5+2223 cluster field, and 11 in its parallel field. The high-redshift nature of the bright z ≃ 9.6 galaxy MACS1149-JD, previously reported by Zheng et al., is further supported by non-detection in the extremely deep optical images from the HFF campaign. With the new photometry, the best photometric redshift solution for MACS1149-JD reduces slightly to z = 9.44 ± 0.12. The young galaxy has an estimated stellar mass of , and was formed at when the universe was ≈300 Myr old. Data available for the first four HFF clusters have already enabled us to find faint galaxies to an intrinsic magnitude of , approximately a factor of 10 deeper than the parallel fields.

Original language	American English
Article number	210
Journal	Astrophysical Journal
Volume	836
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/aa5d55
State	Published - 20 Feb 2017

Keywords

cosmology: observations
galaxies: clusters: individual (MACS J1149.5+2223)
galaxies: highredshift
gravitational lensing: strong

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-4357/aa5d55

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title = "Young Galaxy Candidates in the Hubble Frontier Fields. IV. MACS J1149.5+2223",

abstract = "We search for high-redshift dropout galaxies behind the Hubble Frontier Fields (HFF) galaxy cluster MACS J1149.5+2223, a powerful cosmic lens that has revealed a number of unique objects in its field. Using the deep images from the Hubble and Spitzer space telescopes, we find 11 galaxies at z > 7 in the MACS J1149.5+2223 cluster field, and 11 in its parallel field. The high-redshift nature of the bright z ≃ 9.6 galaxy MACS1149-JD, previously reported by Zheng et al., is further supported by non-detection in the extremely deep optical images from the HFF campaign. With the new photometry, the best photometric redshift solution for MACS1149-JD reduces slightly to z = 9.44 ± 0.12. The young galaxy has an estimated stellar mass of , and was formed at when the universe was ≈300 Myr old. Data available for the first four HFF clusters have already enabled us to find faint galaxies to an intrinsic magnitude of , approximately a factor of 10 deeper than the parallel fields.",

keywords = "cosmology: observations, galaxies: clusters: individual (MACS J1149.5+2223), galaxies: highredshift, gravitational lensing: strong",

author = "Wei Zheng and Adi Zitrin and Leopoldo Infante and Nicolas Laporte and Xingxing Huang and John Moustakas and Ford, {Holland C.} and Xinwen Shu and Junxian Wang and Diego, {Jose M.} and Bauer, {Franz E.} and Iribarren, {Paulina Troncoso} and Tom Broadhurst and Alberto Molino",

year = "2017",

month = feb,

day = "20",

doi = "10.3847/1538-4357/aa5d55",

language = "American English",

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journal = "Astrophysical Journal",

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TY - JOUR

T1 - Young Galaxy Candidates in the Hubble Frontier Fields. IV. MACS J1149.5+2223

AU - Zheng, Wei

AU - Zitrin, Adi

AU - Infante, Leopoldo

AU - Laporte, Nicolas

AU - Huang, Xingxing

AU - Moustakas, John

AU - Ford, Holland C.

AU - Shu, Xinwen

AU - Wang, Junxian

AU - Diego, Jose M.

AU - Bauer, Franz E.

AU - Iribarren, Paulina Troncoso

AU - Broadhurst, Tom

AU - Molino, Alberto

PY - 2017/2/20

Y1 - 2017/2/20

N2 - We search for high-redshift dropout galaxies behind the Hubble Frontier Fields (HFF) galaxy cluster MACS J1149.5+2223, a powerful cosmic lens that has revealed a number of unique objects in its field. Using the deep images from the Hubble and Spitzer space telescopes, we find 11 galaxies at z > 7 in the MACS J1149.5+2223 cluster field, and 11 in its parallel field. The high-redshift nature of the bright z ≃ 9.6 galaxy MACS1149-JD, previously reported by Zheng et al., is further supported by non-detection in the extremely deep optical images from the HFF campaign. With the new photometry, the best photometric redshift solution for MACS1149-JD reduces slightly to z = 9.44 ± 0.12. The young galaxy has an estimated stellar mass of , and was formed at when the universe was ≈300 Myr old. Data available for the first four HFF clusters have already enabled us to find faint galaxies to an intrinsic magnitude of , approximately a factor of 10 deeper than the parallel fields.

AB - We search for high-redshift dropout galaxies behind the Hubble Frontier Fields (HFF) galaxy cluster MACS J1149.5+2223, a powerful cosmic lens that has revealed a number of unique objects in its field. Using the deep images from the Hubble and Spitzer space telescopes, we find 11 galaxies at z > 7 in the MACS J1149.5+2223 cluster field, and 11 in its parallel field. The high-redshift nature of the bright z ≃ 9.6 galaxy MACS1149-JD, previously reported by Zheng et al., is further supported by non-detection in the extremely deep optical images from the HFF campaign. With the new photometry, the best photometric redshift solution for MACS1149-JD reduces slightly to z = 9.44 ± 0.12. The young galaxy has an estimated stellar mass of , and was formed at when the universe was ≈300 Myr old. Data available for the first four HFF clusters have already enabled us to find faint galaxies to an intrinsic magnitude of , approximately a factor of 10 deeper than the parallel fields.

KW - cosmology: observations

KW - galaxies: clusters: individual (MACS J1149.5+2223)

KW - galaxies: highredshift

KW - gravitational lensing: strong

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U2 - 10.3847/1538-4357/aa5d55

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M3 - Article

SN - 0004-637X

VL - 836

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 210

ER -

Young Galaxy Candidates in the Hubble Frontier Fields. IV. MACS J1149.5+2223

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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