Empirical Measurements of Massive Galaxy and Active Galaxy Evolution

Persistent Link:
http://hdl.handle.net/10150/195540
Title:
Empirical Measurements of Massive Galaxy and Active Galaxy Evolution
Author:
Cool, Richard Jacob
Issue Date:
2008
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Using new wide-area galaxy redshift surveys, we explore the evolutionof the most massive galaxies and the most luminous quasars in the universe over much of cosmic history. Quasars and massive red galaxies both areextremes; the most luminous high redshift quasars likely play a key role in shaping their nearby environment and the universe as a whole. The mostmassive galaxies represent the end points of galaxy evolution and containa fossil record of the galaxy evolution process.Using the AGES redshift survey completed with the MMT and the Hectospecmulti-object spectrograph as well as new $z$-band observations of the NOAO Deep Wide-Field Survey Bootes field, we report the discovery of threenew quasars at z>5. We explore new mid-infrared selection in light of thesethree new quasars and place constraints on the slope of the high-redshiftquasar luminosity function.At lower redshift (0.1<z<0.4) we measure the scatter in red galaxy colorsaround the optical red-sequence using imaging and spectroscopy from theSloan Digital Sky Survey. With our sample of nearly 20,000 massiveearly-type galaxies (L>2.2L*), we find that the scatter around the color-magnitude relation is quite small in colors studied.Each of three model star formation histories can reproduce the scatter we measure, none of the models producecolor distributions matching those observed.We measure the evolution of the LRG luminosity function in the redshift range 0.1<z<0.9. We find that theLRG population has evolved little beyond the passive fading of its stellar populations since z~0.9. The most massive (L>3L*)red galaxies have grown by less than 50% (at 99% confidence) since z=0.9 in stark contrast to the factor of 2 to 4 growth observed in the L* red galaxy population over the same epoch.Finally, we introduce the PRIsm MUlti-object Survey (PRIMUS), a new redshiftsurvey aimed at collecting ~300,000 galaxy spectra over 10 sq. deg toz~1. We summarize the current status of PRIMUS observations and datareductions and present several survey statistics. PRIMUS is the largestexisting redshift survey at intermediate redshift and holds the largestsample of redshifts for Spitzer and X-ray detected objects.
Type:
text; Electronic Dissertation
Keywords:
Astronomy
Degree Name:
PhD
Degree Level:
doctoral
Degree Program:
Astronomy; Graduate College
Degree Grantor:
University of Arizona
Advisor:
Eisenstein, Daniel J.
Committee Chair:
Eisenstein, Daniel J.

Full metadata record

DC FieldValue Language
dc.language.isoENen_US
dc.titleEmpirical Measurements of Massive Galaxy and Active Galaxy Evolutionen_US
dc.creatorCool, Richard Jacoben_US
dc.contributor.authorCool, Richard Jacoben_US
dc.date.issued2008en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractUsing new wide-area galaxy redshift surveys, we explore the evolutionof the most massive galaxies and the most luminous quasars in the universe over much of cosmic history. Quasars and massive red galaxies both areextremes; the most luminous high redshift quasars likely play a key role in shaping their nearby environment and the universe as a whole. The mostmassive galaxies represent the end points of galaxy evolution and containa fossil record of the galaxy evolution process.Using the AGES redshift survey completed with the MMT and the Hectospecmulti-object spectrograph as well as new $z$-band observations of the NOAO Deep Wide-Field Survey Bootes field, we report the discovery of threenew quasars at z>5. We explore new mid-infrared selection in light of thesethree new quasars and place constraints on the slope of the high-redshiftquasar luminosity function.At lower redshift (0.1<z<0.4) we measure the scatter in red galaxy colorsaround the optical red-sequence using imaging and spectroscopy from theSloan Digital Sky Survey. With our sample of nearly 20,000 massiveearly-type galaxies (L>2.2L*), we find that the scatter around the color-magnitude relation is quite small in colors studied.Each of three model star formation histories can reproduce the scatter we measure, none of the models producecolor distributions matching those observed.We measure the evolution of the LRG luminosity function in the redshift range 0.1<z<0.9. We find that theLRG population has evolved little beyond the passive fading of its stellar populations since z~0.9. The most massive (L>3L*)red galaxies have grown by less than 50% (at 99% confidence) since z=0.9 in stark contrast to the factor of 2 to 4 growth observed in the L* red galaxy population over the same epoch.Finally, we introduce the PRIsm MUlti-object Survey (PRIMUS), a new redshiftsurvey aimed at collecting ~300,000 galaxy spectra over 10 sq. deg toz~1. We summarize the current status of PRIMUS observations and datareductions and present several survey statistics. PRIMUS is the largestexisting redshift survey at intermediate redshift and holds the largestsample of redshifts for Spitzer and X-ray detected objects.en_US
dc.typetexten_US
dc.typeElectronic Dissertationen_US
dc.subjectAstronomyen_US
thesis.degree.namePhDen_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineAstronomyen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorEisenstein, Daniel J.en_US
dc.contributor.chairEisenstein, Daniel J.en_US
dc.contributor.committeememberJannuzi, Buellen_US
dc.contributor.committeememberZaritsky, Dennisen_US
dc.contributor.committeememberDave, Romeelen_US
dc.contributor.committeememberOlszewski, Edwarden_US
dc.identifier.proquest2832en_US
dc.identifier.oclc659749897en_US
All Items in UA Campus Repository are protected by copyright, with all rights reserved, unless otherwise indicated.