Low-resolution spectral templates for galaxies from 0.2 to 10 μm

R. J. Assef; C. S. Kochanek; M. Brodwin; M. J.I. Brown; N. Caldwell; R. J. Cool; P. Eisenhardt; D. Eisenstein; A. H. Gonzalez; B. T. Jannuzi; C. Jones; E. McKenzie; S. S. Murray; D. Stern

doi:10.1086/527533

Low-resolution spectral templates for galaxies from 0.2 to 10 μm

R. J. Assef, C. S. Kochanek, M. Brodwin, M. J.I. Brown, N. Caldwell, R. J. Cool, P. Eisenhardt, D. Eisenstein, A. H. Gonzalez, B. T. Jannuzi, C. Jones, E. McKenzie, S. S. Murray, D. Stern

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

60 Scopus citations

Abstract

We built an optimal basis of low-resolution templates for galaxies over the wavelength range from 0.2 to 10 μm using a variant of the algorithm presented by Budavari and coworkers. We derived them using 11 bands of photometry from the NDWFS, FLAMEX, zBoötes, and IRAC Shallow surveys for 16,033 galaxies in the NDWFS Bootes field with spectroscopic redshifts measured by the AGN and Galaxy Evolution Survey. We also developed algorithms to accurately determine photometric redshifts, K-corrections, and bolometric luminosities using these templates. Our photometric redshifts have an accuracy of σ_z/(1 + z) = 0.04 when clipped to the best 95%. We used these templates to study the spectral type distribution in the field and to estimate luminosity functions of galaxies as a function of redshift and spectral type. In particular, we note that the 5-8 μm color distribution of galaxies is bimodal, much like the optical g - r colors.

Original language	English (US)
Pages (from-to)	286-303
Number of pages	18
Journal	Astrophysical Journal
Volume	676
Issue number	1
DOIs	https://doi.org/10.1086/527533
State	Published - Mar 20 2008
Externally published	Yes

Keywords

Galaxies: distances and redshifts
Galaxies: luminosity function, mass function
Galaxies: photometry

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/527533

Cite this

@article{488af83bb6394ee0b2b8508f8434cf8b,

title = "Low-resolution spectral templates for galaxies from 0.2 to 10 μm",

abstract = "We built an optimal basis of low-resolution templates for galaxies over the wavelength range from 0.2 to 10 μm using a variant of the algorithm presented by Budavari and coworkers. We derived them using 11 bands of photometry from the NDWFS, FLAMEX, zBo{\"o}tes, and IRAC Shallow surveys for 16,033 galaxies in the NDWFS Bootes field with spectroscopic redshifts measured by the AGN and Galaxy Evolution Survey. We also developed algorithms to accurately determine photometric redshifts, K-corrections, and bolometric luminosities using these templates. Our photometric redshifts have an accuracy of σz/(1 + z) = 0.04 when clipped to the best 95%. We used these templates to study the spectral type distribution in the field and to estimate luminosity functions of galaxies as a function of redshift and spectral type. In particular, we note that the 5-8 μm color distribution of galaxies is bimodal, much like the optical g - r colors.",

keywords = "Galaxies: distances and redshifts, Galaxies: luminosity function, mass function, Galaxies: photometry",

author = "Assef, {R. J.} and Kochanek, {C. S.} and M. Brodwin and Brown, {M. J.I.} and N. Caldwell and Cool, {R. J.} and P. Eisenhardt and D. Eisenstein and Gonzalez, {A. H.} and Jannuzi, {B. T.} and C. Jones and E. McKenzie and Murray, {S. S.} and D. Stern",

year = "2008",

month = mar,

day = "20",

doi = "10.1086/527533",

language = "English (US)",

volume = "676",

pages = "286--303",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

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TY - JOUR

T1 - Low-resolution spectral templates for galaxies from 0.2 to 10 μm

AU - Assef, R. J.

AU - Kochanek, C. S.

AU - Brodwin, M.

AU - Brown, M. J.I.

AU - Caldwell, N.

AU - Cool, R. J.

AU - Eisenhardt, P.

AU - Eisenstein, D.

AU - Gonzalez, A. H.

AU - Jannuzi, B. T.

AU - Jones, C.

AU - McKenzie, E.

AU - Murray, S. S.

AU - Stern, D.

PY - 2008/3/20

Y1 - 2008/3/20

N2 - We built an optimal basis of low-resolution templates for galaxies over the wavelength range from 0.2 to 10 μm using a variant of the algorithm presented by Budavari and coworkers. We derived them using 11 bands of photometry from the NDWFS, FLAMEX, zBoötes, and IRAC Shallow surveys for 16,033 galaxies in the NDWFS Bootes field with spectroscopic redshifts measured by the AGN and Galaxy Evolution Survey. We also developed algorithms to accurately determine photometric redshifts, K-corrections, and bolometric luminosities using these templates. Our photometric redshifts have an accuracy of σz/(1 + z) = 0.04 when clipped to the best 95%. We used these templates to study the spectral type distribution in the field and to estimate luminosity functions of galaxies as a function of redshift and spectral type. In particular, we note that the 5-8 μm color distribution of galaxies is bimodal, much like the optical g - r colors.

AB - We built an optimal basis of low-resolution templates for galaxies over the wavelength range from 0.2 to 10 μm using a variant of the algorithm presented by Budavari and coworkers. We derived them using 11 bands of photometry from the NDWFS, FLAMEX, zBoötes, and IRAC Shallow surveys for 16,033 galaxies in the NDWFS Bootes field with spectroscopic redshifts measured by the AGN and Galaxy Evolution Survey. We also developed algorithms to accurately determine photometric redshifts, K-corrections, and bolometric luminosities using these templates. Our photometric redshifts have an accuracy of σz/(1 + z) = 0.04 when clipped to the best 95%. We used these templates to study the spectral type distribution in the field and to estimate luminosity functions of galaxies as a function of redshift and spectral type. In particular, we note that the 5-8 μm color distribution of galaxies is bimodal, much like the optical g - r colors.

KW - Galaxies: distances and redshifts

KW - Galaxies: luminosity function, mass function

KW - Galaxies: photometry

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DO - 10.1086/527533

M3 - Article

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JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

ER -

Low-resolution spectral templates for galaxies from 0.2 to 10 μm

Abstract

Keywords

ASJC Scopus subject areas

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Spectral templates for galaxies from 0.2 to 10um

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Low-resolution spectral templates for galaxies from 0.2 to 10 μm

Abstract

Keywords

ASJC Scopus subject areas

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Spectral templates for galaxies from 0.2 to 10um

Cite this