Searching for Low-redshift Faint Galaxies with MMT/Hectospec

Cheng Cheng; Jia Sheng Huang; Christopher N.A. Willmer; Hong Xin Zhang; Matthew L.N. Ashby; Hai Xu; Marcin Sawicki; Stephane Arnouts; Stephen Gwyn; Guilllaume Desprez; Jean Coupon; Anneya Golob; Piaoran Liang; Tianwen Cao; Yaru Shi; Gaoxiang Jin; Chuan He; Shumei Wu; Zijian Li; Y. Sophia Dai; C. Kevin Xu; Xu Shao; Marat Musin

doi:10.3847/1538-4365/ac17ef

Searching for Low-redshift Faint Galaxies with MMT/Hectospec

Cheng Cheng
, Jia Sheng Huang
, Christopher N.A. Willmer
, Hong Xin Zhang
, Matthew L.N. Ashby
, Hai Xu
, Marcin Sawicki
, Stephane Arnouts
, Stephen Gwyn
, Guilllaume Desprez
, Jean Coupon
, Anneya Golob
, Piaoran Liang
, Tianwen Cao
, Yaru Shi
, Gaoxiang Jin
, Chuan He
, Shumei Wu
, Zijian Li
, Y. Sophia Dai

C. Kevin Xu, Xu Shao, Marat Musin

Steward Observatory

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

5 Scopus citations

Abstract

We present redshifts for 2753 low-redshift galaxies between 0.03 ≲ z spec ≲ 0.5 with 18 ≤ r ≤ 22 obtained with Hectospec at the Multi-Mirror Telescope. The observations targeted the XMM-LSS, ELAIS-N1 and DEEP2-3 fields, each of which covers ∼1 deg2. These fields are also part of the recently completed Canada-France-Hawaii Telescope Large Area U-band Deep Survey and ongoing Hyper Suprime-Cam deep fields surveys. The efficiency of our technique for selecting low-redshift galaxies is confirmed by the redshift distribution of our sources. In addition to redshifts, these high signal-to-noise ratio spectra are used to measure ages, metallicities, and nuclear activity levels. In combination with the photometric catalog in u, g, r, i, z, y down to 27 AB mag, we are able to study the galaxy population down to stellar masses of ∼108 M o˙. This paper presents the observational strategy, the reduction procedure and properties of the galaxy sample. (The catalog can be accessed through the survey's website at http://mips.as.arizona.edu/∼cnaw/Faint_Low_z/.)

Original language	English (US)
Article number	4
Journal	Astrophysical Journal, Supplement Series
Volume	256
Issue number	1
DOIs	https://doi.org/10.3847/1538-4365/ac17ef
State	Published - Sep 2021

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-4365/ac17ef

Cite this

Cheng, C., Huang, J. S., Willmer, C. N. A., Zhang, H. X., Ashby, M. L. N., Xu, H., Sawicki, M., Arnouts, S., Gwyn, S., Desprez, G., Coupon, J., Golob, A., Liang, P., Cao, T., Shi, Y., Jin, G., He, C., Wu, S., Li, Z., ... Musin, M. (2021). Searching for Low-redshift Faint Galaxies with MMT/Hectospec. Astrophysical Journal, Supplement Series, 256(1), Article 4. https://doi.org/10.3847/1538-4365/ac17ef

Cheng, C, Huang, JS, Willmer, CNA, Zhang, HX, Ashby, MLN, Xu, H, Sawicki, M, Arnouts, S, Gwyn, S, Desprez, G, Coupon, J, Golob, A, Liang, P, Cao, T, Shi, Y, Jin, G, He, C, Wu, S, Li, Z, Sophia Dai, Y, Xu, CK, Shao, X & Musin, M 2021, 'Searching for Low-redshift Faint Galaxies with MMT/Hectospec', Astrophysical Journal, Supplement Series, vol. 256, no. 1, 4. https://doi.org/10.3847/1538-4365/ac17ef

@article{9ad17eb33add4f6c9f5f3329551abd2d,

title = "Searching for Low-redshift Faint Galaxies with MMT/Hectospec",

abstract = "We present redshifts for 2753 low-redshift galaxies between 0.03 ≲ z spec ≲ 0.5 with 18 ≤ r ≤ 22 obtained with Hectospec at the Multi-Mirror Telescope. The observations targeted the XMM-LSS, ELAIS-N1 and DEEP2-3 fields, each of which covers ∼1 deg2. These fields are also part of the recently completed Canada-France-Hawaii Telescope Large Area U-band Deep Survey and ongoing Hyper Suprime-Cam deep fields surveys. The efficiency of our technique for selecting low-redshift galaxies is confirmed by the redshift distribution of our sources. In addition to redshifts, these high signal-to-noise ratio spectra are used to measure ages, metallicities, and nuclear activity levels. In combination with the photometric catalog in u, g, r, i, z, y down to 27 AB mag, we are able to study the galaxy population down to stellar masses of ∼108 M o˙. This paper presents the observational strategy, the reduction procedure and properties of the galaxy sample. (The catalog can be accessed through the survey's website at http://mips.as.arizona.edu/∼cnaw/Faint\_Low\_z/.)",

author = "Cheng Cheng and Huang, \{Jia Sheng\} and Willmer, \{Christopher N.A.\} and Zhang, \{Hong Xin\} and Ashby, \{Matthew L.N.\} and Hai Xu and Marcin Sawicki and Stephane Arnouts and Stephen Gwyn and Guilllaume Desprez and Jean Coupon and Anneya Golob and Piaoran Liang and Tianwen Cao and Yaru Shi and Gaoxiang Jin and Chuan He and Shumei Wu and Zijian Li and \{Sophia Dai\}, Y. and Xu, \{C. Kevin\} and Xu Shao and Marat Musin",

note = "Publisher Copyright: {\textcopyright} 2021. The Author(s). Published by the American Astronomical Society.",

year = "2021",

month = sep,

doi = "10.3847/1538-4365/ac17ef",

language = "English (US)",

volume = "256",

journal = "Astrophysical Journal, Supplement Series",

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T1 - Searching for Low-redshift Faint Galaxies with MMT/Hectospec

AU - Cheng, Cheng

AU - Huang, Jia Sheng

AU - Willmer, Christopher N.A.

AU - Zhang, Hong Xin

AU - Ashby, Matthew L.N.

AU - Xu, Hai

AU - Sawicki, Marcin

AU - Arnouts, Stephane

AU - Gwyn, Stephen

AU - Desprez, Guilllaume

AU - Coupon, Jean

AU - Golob, Anneya

AU - Liang, Piaoran

AU - Cao, Tianwen

AU - Shi, Yaru

AU - Jin, Gaoxiang

AU - He, Chuan

AU - Wu, Shumei

AU - Li, Zijian

AU - Sophia Dai, Y.

AU - Xu, C. Kevin

AU - Shao, Xu

AU - Musin, Marat

PY - 2021/9

Y1 - 2021/9

N2 - We present redshifts for 2753 low-redshift galaxies between 0.03 ≲ z spec ≲ 0.5 with 18 ≤ r ≤ 22 obtained with Hectospec at the Multi-Mirror Telescope. The observations targeted the XMM-LSS, ELAIS-N1 and DEEP2-3 fields, each of which covers ∼1 deg2. These fields are also part of the recently completed Canada-France-Hawaii Telescope Large Area U-band Deep Survey and ongoing Hyper Suprime-Cam deep fields surveys. The efficiency of our technique for selecting low-redshift galaxies is confirmed by the redshift distribution of our sources. In addition to redshifts, these high signal-to-noise ratio spectra are used to measure ages, metallicities, and nuclear activity levels. In combination with the photometric catalog in u, g, r, i, z, y down to 27 AB mag, we are able to study the galaxy population down to stellar masses of ∼108 M o˙. This paper presents the observational strategy, the reduction procedure and properties of the galaxy sample. (The catalog can be accessed through the survey's website at http://mips.as.arizona.edu/∼cnaw/Faint_Low_z/.)

AB - We present redshifts for 2753 low-redshift galaxies between 0.03 ≲ z spec ≲ 0.5 with 18 ≤ r ≤ 22 obtained with Hectospec at the Multi-Mirror Telescope. The observations targeted the XMM-LSS, ELAIS-N1 and DEEP2-3 fields, each of which covers ∼1 deg2. These fields are also part of the recently completed Canada-France-Hawaii Telescope Large Area U-band Deep Survey and ongoing Hyper Suprime-Cam deep fields surveys. The efficiency of our technique for selecting low-redshift galaxies is confirmed by the redshift distribution of our sources. In addition to redshifts, these high signal-to-noise ratio spectra are used to measure ages, metallicities, and nuclear activity levels. In combination with the photometric catalog in u, g, r, i, z, y down to 27 AB mag, we are able to study the galaxy population down to stellar masses of ∼108 M o˙. This paper presents the observational strategy, the reduction procedure and properties of the galaxy sample. (The catalog can be accessed through the survey's website at http://mips.as.arizona.edu/∼cnaw/Faint_Low_z/.)

UR - https://www.scopus.com/pages/publications/85115165972

UR - https://www.scopus.com/pages/publications/85115165972#tab=citedBy

U2 - 10.3847/1538-4365/ac17ef

DO - 10.3847/1538-4365/ac17ef

M3 - Article

SN - 0067-0049

VL - 256

JO - Astrophysical Journal, Supplement Series

JF - Astrophysical Journal, Supplement Series

IS - 1

M1 - 4

ER -

Searching for Low-redshift Faint Galaxies with MMT/Hectospec

Abstract

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Catalogue of galaxies observed with Hectospec

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Searching for Low-redshift Faint Galaxies with MMT/Hectospec

Abstract

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Datasets

Catalogue of galaxies observed with Hectospec

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