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

被引：59

作者：

Assef, R. J. ^{[1
]}

Kochanek, C. S. ^{[1
]}

Brodwin, M. ^{[2
]}

Brown, M. J. I. ^{[3
]}

Caldwell, N. ^{[4
]}

Cool, R. J. ^{[5
]}

Eisenhardt, P. ^{[2
]}

Eisenstein, D. ^{[5
]}

Gonzalez, A. H. ^{[6
]}

Jannuzi, B. T. ^{[7
]}

Jones, C.

McKenzie, E. ^{[8
]}

Murray, S. S. ^{[4
]}

Stern, D.

机构：

[1] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA

[2] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[3] Monash Univ, Sch Phys, Clayton, Vic 3800, Australia

[4] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[5] Univ Arizona, Steward Observ, Tucson, AZ 85121 USA

[6] Univ Florida, Dept Astron, Gainesville, FL 32611 USA

[7] Kitt Peak Natl Observ, Natl Opt Astron Observ, Tucson, AZ 85726 USA

[8] Colgate Univ, Dept Phys & Astron, Hamilton, NY 13346 USA

来源：

ASTROPHYSICAL JOURNAL | 2008年 / 676卷 / 01期

关键词：

galaxies : distances and redshifts; galaxies : luminosity function; mass function; galaxies : photometry;

D O I：

10.1086/527533

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We built an optimal basis of low- resolution templates for galaxies over the wavelength range from 0.2 to 10 mu m using a variant of the algorithm presented by Budavari and coworkers. We derived them using 11 bands of photometry from the NDWFS, FLAMEX, zBootes, 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 sigma(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 mu m color distribution of galaxies is bimodal, much like the optical g - r colors.

引用

页码：286 / 303

页数：18

共 63 条

[1] THE FIRST SURVEY - FAINT IMAGES OF THE RADIO SKY AT 20 CENTIMETERS [J].