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Author
dc.contributor.author
Wolf, C 
Author
dc.contributor.author
Meisenheimer, K 
Author
dc.contributor.author
Kleinheinrich, A 
Author
dc.contributor.author
Borch, A 
Author
dc.contributor.author
Dye, S 
Author
dc.contributor.author
Gray, A 
Author
dc.contributor.author
Wisotzki, L 
Author
dc.contributor.author
Bell, EF 
Author
dc.contributor.author
Rix, HW 
Author
dc.contributor.author
Cimatti, A 
Availability Date
dc.date.accessioned
2020-08-08T20:20:30Z
Availability Date
dc.date.available
2020-08-08T20:20:30Z
Release
dc.date.issued
2004
uri
dc.identifier.uri
http://hdl.handle.net/10831/49233
Abstract
dc.description.abstract
We present the COMBO-17 object catalogue of the Chandra Deep Field South for public use, covering a field which is 31.'5 x 30' in size. This catalogue lists astrometry, photometry in 17 passbands from 350 to 930 nm, and ground-based morphological data for 63 501 objects. The catalogue also contains multi-colour classification into the categories Star, Galaxy and Quasar as well as photometric redshifts. We include restframe luminosities in Johnson, SDSS and Bessell passbands and estimated errors. The redshifts are most reliable at R<24, where the sample contains approximately 100 quasars, 1000 stars and 10 000 galaxies. We use nearly 1000 spectroscopically identified objects in conjunction with detailed simulations to characterize the performance of COMBO-17. We show that the selection of quasars, more generally type-1 AGN, is nearly complete and minimally contaminated at z=[0.5, 5] for luminosities above M-B=-21.7. Their photometric redshifts are accurate to roughly 5000 km s(-1). Galaxy redshifts are accurate to 1% in &delta;(z)/(1+z) at R<21. They degrade in quality for progressively fainter galaxies, reaching accuracies of 2% for galaxies with Rsimilar to22 and of 10% for galaxies with R>24. The selection of stars is complete to Rsimilar to23, and deeper for M stars. We also present an updated discussion of our classification technique with maps of survey completeness, and discuss possible failures of the statistical classification in the faint regime at Rgreater than or similar to24.
Language
dc.language
Angol
Title
dc.title
A catalogue of the Chandra Deep Field South with multi-colour classification and photometric redshifts from COMBO-17
Type
dc.type
folyóiratcikk
Date Change
dc.date.updated
2020-06-05T12:22:48Z
Note
dc.description.note
: CEDEXA, FRANCE
Scope
dc.format.page
913-936
Doi ID
dc.identifier.doi
10.1051/0004-6361:20040525
Wos ID
dc.identifier.wos
000223249700014
ID Scopus
dc.identifier.scopus
3142743380
MTMT ID
dc.identifier.mtmt
3130993
Issue Number
dc.identifier.issue
3
abbreviated journal
dc.identifier.jabbrev
ASTRON ASTROPHYS
Journal
dc.identifier.jtitle
ASTRONOMY & ASTROPHYSICS
Volume Number
dc.identifier.volume
421
Release Date
dc.description.issuedate
2004
department of Author
dc.contributor.institution
Eötvös Gravity Research Group
department of Author
dc.contributor.institution
Atomfizikai Tanszék


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A catalogue of the Chandra Deep Field South with multi-colour classification and photometric redshifts from COMBO-17
 

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