Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/33182
Title: | New insights on the accuracy of photometric redshift measurements | Authors: | Massarotti, M. IOVINO, Angela BUZZONI, Alberto Valls-Gabaud, D. |
Issue Date: | 2001 | Journal: | ASTRONOMY & ASTROPHYSICS | Number: | 380 | Issue: | 2 | First Page: | 425 | Abstract: | We use the deepest and most complete redshift catalog currently available (the Hubble Deep Field (HDF) North supplemented by new HDF South redshift data) to minimize residuals between photometric and spectroscopic redshift estimates. The good agreement at z<SUB>spec</SUB> < 1.5 shows that model libraries provide a good description of the galaxy population. At z<SUB>spec</SUB> >= 2.0, the systematic shift between photometric and spectroscopic redshifts decreases when the modeling of the absorption by the interstellar and intergalactic media is refined. As a result, in the entire redshift range z in [0, 6], residuals between photometric and spectroscopic redshifts are roughly halved. For objects fainter than the spectroscopic limit, the main source of uncertainty in photometric redshifts is related to photometric errors, and can be assessed with Monte Carlo simulations. | URI: | http://hdl.handle.net/20.500.12386/33182 | URL: | https://www.aanda.org/articles/aa/abs/2001/47/aah2978/aah2978.html http://arxiv.org/abs/astro-ph/0110292v1 |
ISSN: | 0004-6361 | DOI: | 10.1051/0004-6361:20011409 | Bibcode ADS: | 2001A&A...380..425M | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
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File | Description | Size | Format | |
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aah2978.pdf | Pdf editoriale | 281.61 kB | Adobe PDF | View/Open |
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