Show simple item record

Author
dc.contributor.author
Csabai, I 
Author
dc.contributor.author
Connolly, A J 
Author
dc.contributor.author
Szalay, A S 
Author
dc.contributor.author
Budavari, T 
Availability Date
dc.date.accessioned
2020-08-08T20:30:53Z
Availability Date
dc.date.available
2020-08-08T20:30:53Z
Release
dc.date.issued
2000
uri
dc.identifier.uri
http://hdl.handle.net/10831/49276
Abstract
dc.description.abstract
We present a novel approach to photometric redshifts, one that merges the advantages of both the template-fitting and empirical-fitting algorithms without any of their disadvantages. This technique derives a set of templates describing the spectral energy distributions of galaxies from a catalog with both multicolor photometry and spectroscopic redshifts. The algorithm is essentially using the shapes of the templates as the fitting parameters. From simulated multicolor data we show that for a small training set of galaxies we can reconstruct robustly the underlying spectral energy distributions even in the presence of substantial errors in the photometric observations. We apply these techniques to the multicolor and spectroscopic observations of the Hubble Deep Field, building a set of template spectra that reproduced the observed galaxy colors to better than 10%. Finally, we demonstrate that these improved spectral energy distributions lead to a photometric redshift relation for the Hubble Deep Field that is more accurate than standard template-based approaches.
Language
dc.language
Angol
Title
dc.title
Reconstructing galaxy spectral energy distributions from broadband photometry
Type
dc.type
folyóiratcikk
Date Change
dc.date.updated
2020-06-05T13:35:52Z
Scope
dc.format.page
69-78
Doi ID
dc.identifier.doi
10.1086/301159
Wos ID
dc.identifier.wos
000085109700008
ID Scopus
dc.identifier.scopus
0013204409
MTMT ID
dc.identifier.mtmt
1064425
Issue Number
dc.identifier.issue
1
abbreviated journal
dc.identifier.jabbrev
ASTRON J
Journal
dc.identifier.jtitle
ASTRONOMICAL JOURNAL
Volume Number
dc.identifier.volume
119
Release Date
dc.description.issuedate
2000
department of Author
dc.contributor.institution
Alba Regia Egyetemi Központ
department of Author
dc.contributor.institution
Fizikai Intézet
department of Author
dc.contributor.institution
Mérnöki Intézet
department of Author
dc.contributor.institution
Komplex Rendszerek Fizikája Tanszék
Author institution
dc.contributor.department
Komplex Rendszerek Fizikája Tanszék


Files in this item

Reconstructing galaxy spectral energy distributions from broadband photometry
 

This item appears in the following Collection(s)

Show simple item record