Spectroscopic study of the HST/ACS PEARS emission-line galaxies

Lifang Xia; Sangeeta Malhotra; James Rhoads; Norbert Pirzkal; Zhenya Zheng; Gerhardt Meurer; Amber Straughn; Norman Grogin; David Floyd

doi:10.1088/0004-6256/141/2/64

Spectroscopic study of the HST/ACS PEARS emission-line galaxies

Lifang Xia, Sangeeta Malhotra, James Rhoads, Norbert Pirzkal, Zhenya Zheng, Gerhardt Meurer, Amber Straughn, Norman Grogin, David Floyd

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

8 Citations (Scopus)

Abstract

We present spectroscopy of 76 emission-line galaxies (ELGs) in Chandra Deep Field South taken with the LDSS3 spectrograph on the Magellan Telescope. These galaxies are selected because they have emission lines with the Advanced Camera for Surveys (ACS) grism data in the Hubble Space Telescope Probing Evolution and Reionization Spectroscopically (PEARS) grism Survey. The ACS grism spectra cover the wavelength range 6000-9700 ?? and most PEARS grism redshifts are based on a single emission line + photometric redshifts from broadband colors; the Magellan spectra cover a wavelength range from 4000 ?? to 9000 ?? and provide a check on redshifts derived from PEARS data.We find an accuracy of I?z = 0.006 for the ACS grism redshifts with only one catastrophic outlier.We probe for active galactic nuclei (AGNs) in our sample via several different methods.

Original language	English
Pages (from-to)	1 - 6
Number of pages	6
Journal	The Astronomical Journal
Volume	141
Issue number	2
DOIs	https://doi.org/10.1088/0004-6256/141/2/64
Publication status	Published - 2011
Externally published	Yes

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10.1088/0004-6256/141/2/64

Cite this

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title = "Spectroscopic study of the HST/ACS PEARS emission-line galaxies",

abstract = "We present spectroscopy of 76 emission-line galaxies (ELGs) in Chandra Deep Field South taken with the LDSS3 spectrograph on the Magellan Telescope. These galaxies are selected because they have emission lines with the Advanced Camera for Surveys (ACS) grism data in the Hubble Space Telescope Probing Evolution and Reionization Spectroscopically (PEARS) grism Survey. The ACS grism spectra cover the wavelength range 6000-9700 ?? and most PEARS grism redshifts are based on a single emission line + photometric redshifts from broadband colors; the Magellan spectra cover a wavelength range from 4000 ?? to 9000 ?? and provide a check on redshifts derived from PEARS data.We find an accuracy of I?z = 0.006 for the ACS grism redshifts with only one catastrophic outlier.We probe for active galactic nuclei (AGNs) in our sample via several different methods.",

author = "Lifang Xia and Sangeeta Malhotra and James Rhoads and Norbert Pirzkal and Zhenya Zheng and Gerhardt Meurer and Amber Straughn and Norman Grogin and David Floyd",

year = "2011",

doi = "10.1088/0004-6256/141/2/64",

language = "English",

volume = "141",

pages = "1 -- 6",

journal = "The Astronomical Journal",

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TY - JOUR

T1 - Spectroscopic study of the HST/ACS PEARS emission-line galaxies

AU - Xia, Lifang

AU - Malhotra, Sangeeta

AU - Rhoads, James

AU - Pirzkal, Norbert

AU - Zheng, Zhenya

AU - Meurer, Gerhardt

AU - Straughn, Amber

AU - Grogin, Norman

AU - Floyd, David

PY - 2011

Y1 - 2011

N2 - We present spectroscopy of 76 emission-line galaxies (ELGs) in Chandra Deep Field South taken with the LDSS3 spectrograph on the Magellan Telescope. These galaxies are selected because they have emission lines with the Advanced Camera for Surveys (ACS) grism data in the Hubble Space Telescope Probing Evolution and Reionization Spectroscopically (PEARS) grism Survey. The ACS grism spectra cover the wavelength range 6000-9700 ?? and most PEARS grism redshifts are based on a single emission line + photometric redshifts from broadband colors; the Magellan spectra cover a wavelength range from 4000 ?? to 9000 ?? and provide a check on redshifts derived from PEARS data.We find an accuracy of I?z = 0.006 for the ACS grism redshifts with only one catastrophic outlier.We probe for active galactic nuclei (AGNs) in our sample via several different methods.

AB - We present spectroscopy of 76 emission-line galaxies (ELGs) in Chandra Deep Field South taken with the LDSS3 spectrograph on the Magellan Telescope. These galaxies are selected because they have emission lines with the Advanced Camera for Surveys (ACS) grism data in the Hubble Space Telescope Probing Evolution and Reionization Spectroscopically (PEARS) grism Survey. The ACS grism spectra cover the wavelength range 6000-9700 ?? and most PEARS grism redshifts are based on a single emission line + photometric redshifts from broadband colors; the Magellan spectra cover a wavelength range from 4000 ?? to 9000 ?? and provide a check on redshifts derived from PEARS data.We find an accuracy of I?z = 0.006 for the ACS grism redshifts with only one catastrophic outlier.We probe for active galactic nuclei (AGNs) in our sample via several different methods.

UR - http://iopscience.iop.org.ezproxy.lib.monash.edu.au/1538-3881/141/2/64/pdf/1538-3881_141_2_64.pdf

U2 - 10.1088/0004-6256/141/2/64

DO - 10.1088/0004-6256/141/2/64

M3 - Article

SN - 0004-6256

VL - 141

SP - 1

EP - 6

JO - The Astronomical Journal

JF - The Astronomical Journal

IS - 2

ER -

Spectroscopic study of the HST/ACS PEARS emission-line galaxies

Abstract

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