Astrophysics in the Next Decade: The Evolution of Galaxies

Shapley, Alice E.

doi:10.1007/978-1-4020-9457-6_12

Cited by 2 publications

(2 citation statements)

References 49 publications

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“…The galaxy properties derived via photometry have a strong dependence on the redshifts, and quantifying any systematic biases will help constrain the derived galaxy properties and understand associated errors. Spectral emission and absorption lines also provide a wealth of information on physical processes and kinematics within galaxies (Shapley 2009). Spectroscopy also provides accurate environmental information (for example, the velocity dispersions of proto-clusters; e.g.…”

Section: Introductionmentioning

confidence: 99%

ZFIRE: A KECK/MOSFIRE SPECTROSCOPIC SURVEY OF GALAXIES IN RICH ENVIRONMENTS AT z ∼ 2

Nanayakkara

Glazebrook

Kacprzak

et al. 2016

ApJ

103

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We present an overview and the first data release of ZFIRE, a spectroscopic redshift survey of starforming galaxies that utilizes the MOSFIRE instrument on Keck-I to study galaxy properties in rich environments at 1.5 < z < 2.5. ZFIRE measures accurate spectroscopic redshifts and basic galaxy properties derived from multiple emission lines. The galaxies are selected from a stellar mass limited sample based on deep near infrared imaging (K AB < 25) and precise photometric redshifts from the ZFOURGE and UKIDSS surveys as well as grism redshifts from 3DHST. Between 2013 and 2015 ZFIRE has observed the COSMOS and UDS legacy fields over 13 nights and has obtained 211 galaxy redshifts over 1.57 < z < 2.66 from a combination of nebular emission lines (such as Hα, [Nii], Hβ, [Sii]) observed at 1-2µm. Based on our medium-band near infra-red photometry, we are able to spectrophotometrically flux calibrate our spectra to ∼10% accuracy. ZFIRE reaches 5σ emission line flux limits of ∼3 × 10 −18 erg/s/cm 2 with a resolving power of R = 3500 and reaches masses down to ∼10 9 M . We confirm that the primary input survey, ZFOURGE, has produced photometric redshifts for star-forming galaxies (including highly attenuated ones) accurate to ∆z/(1+ z spec ) = 0.015 with 0.7% outliers. We measure a slight redshift bias of < 0.001, and we note that the redshift bias tends to be larger at higher masses. We also examine the role of redshift on the derivation of rest-frame colours and stellar population parameters from SED fitting techniques. The ZFIRE survey extends spectroscopically confirmed z ∼ 2 samples across a richer range of environments, here we make available the first public release of the data for use by the community. a

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Section: Introductionmentioning

confidence: 99%

ZFIRE: A KECK/MOSFIRE SPECTROSCOPIC SURVEY OF GALAXIES IN RICH ENVIRONMENTS AT z ∼ 2

Nanayakkara

Glazebrook

Kacprzak

et al. 2016

ApJ

103

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show abstract

“…erties derived via photometry have a strong dependence on the redshifts, and quantifying any systematic biases will help constrain the derived galaxy properties and understand associated errors. Spectral emission and absorption lines also provide a wealth of information on physical processes and kinematics within galaxies (Shapley, 2009). Spectroscopy also provides accurate environmental information (for example, the velocity dispersions of proto-clusters; e.g.…”

Section: Need For Spectroscopymentioning

confidence: 99%

MOSFIRE Spectroscopy of Galaxies in Cosmic Noon

Nanayakkara

2017

Preprint

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i "Come, Kalamas. Do not go upon what has been acquired by repeated hearing; nor upon tradition; nor upon rumour; nor upon what is in a scripture; nor upon surmise; nor upon an axiom; nor upon specious reasoning; nor upon a bias towards a notion that has been pondered over; nor upon another's seeming ability; nor upon the consideration, 'The monk is our teacher'. Kalamas, when you yourselves know: 'These things are good; these things are not blamable; these things are praised by the wise; undertaken and observed, these things lead to benefit and happiness,' enter on and abide in them." Buddha to the Kalama community

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Astrophysics in the Next Decade: The Evolution of Galaxies

Cited by 2 publications

References 49 publications

ZFIRE: A KECK/MOSFIRE SPECTROSCOPIC SURVEY OF GALAXIES IN RICH ENVIRONMENTS AT z ∼ 2

ZFIRE: A KECK/MOSFIRE SPECTROSCOPIC SURVEY OF GALAXIES IN RICH ENVIRONMENTS AT z ∼ 2

MOSFIRE Spectroscopy of Galaxies in Cosmic Noon

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