Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· arXiv e-print (arXiv:astro-ph/9911304)
· References in the article
· Citations to the Article (199) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
· HEP/Spires Information
·
· Translate This Page
Title:
Joint formation of QSOs and spheroids: QSOs as clocks of star formation in spheroids
Authors:
Granato, G. L.; Silva, L.; Monaco, P.; Panuzzo, P.; Salucci, P.; De Zotti, G.; Danese, L.
Affiliation:
AA(Osservatorio Astronomico di Padova, Vicolo Osservatorio 5, I35122 Padova, Italy ; SISSA, via Beirut 2-4, I34014 Trieste, Italy ), AB(SISSA, via Beirut 2-4, I34014 Trieste, Italy ; Osservatorio Astronomico di Trieste, via Tiepolo 11, I34131 Trieste, Italy ), AC(Dipartimento di Astronomia, via Tiepolo 11, I34131 Trieste, Italy), AD(SISSA, via Beirut 2-4, I34014 Trieste, Italy ), AE(SISSA, via Beirut 2-4, I34014 Trieste, Italy ), AF(Osservatorio Astronomico di Padova, Vicolo Osservatorio 5, I35122 Padova, Italy ; SISSA, via Beirut 2-4, I34014 Trieste, Italy ), AG(SISSA, via Beirut 2-4, I34014 Trieste, Italy )
Publication:
Monthly Notices of the Royal Astronomical Society, Volume 324, Issue 3, pp. 757-768. (MNRAS Homepage)
Publication Date:
06/2001
Origin:
MNRAS
MNRAS Keywords:
DUST, EXTINCTION, GALAXIES: FORMATION, QUASARS: GENERAL, COSMOLOGY: THEORY, DARK MATTER, INFRARED: GALAXIES
DOI:
10.1046/j.1365-8711.2001.04369.x
Bibliographic Code:
2001MNRAS.324..757G

Abstract

Direct and indirect observational evidence leads to the conclusion that high-redshift QSOs did shine in the core of early-type protogalaxies during their main episode of star formation. Exploiting this fact, we derive the rate of formation of this kind of stellar system at high redshift by using the QSO luminosity function. The elemental proportions in elliptical galaxies, the descendants of the QSO hosts, suggest that the star formation was more rapid in more massive objects. We show that this is expected to occur in dark matter haloes, when the processes of cooling and heating are considered. This is also confirmed by comparing the observed submm counts with those derived by coupling the formation rate and the star formation rate of the spheroidal galaxies with a detailed model for their SED evolution. In this scenario SCUBA galaxies and Lyman-break galaxies are early-type protogalaxies forming the bulk of their stars before the onset of QSO activity.

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences


More Article Retrieval Options

HELP for Article Retrieval
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints