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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.

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Showing 1 to 12 of 12 for “"Photometric redshift"”.

  1. Finding Structures in Photometric Redshift Surveys

    Botzler, Christine S.Ludwig-Maximilians-Universität

    lmu-germany Repository record

  2. The integrated Sachs-Wolfe effect with Planck and the 2Mass Photometric Redshift Catalogue

    Steward, LouiseDepartment of Astronomy2014

    … large-scale structure data are from the 2MASS Photometric Redshift Catalogue (2MPZ). The galaxy data were divided into redshift shells, and HEALPix was used to create pixelised maps of the CMB temperature anisotropies and the galaxy overdensity. The linear galaxy bias, relating the galaxy …

    cape-town Repository record

  3. Probabilistic photometric redshifts in the era of petascale astronomy

    Carrasco Kind, MatiasUniversity of Illinois at Urbana-Champaign2015

    With the growth of large photometric surveys, accurately estimating photometric redshifts, preferably as a probability density function (PDF), and fully understanding the implicit systematic uncertainties in this process has become increasingly important. These surveys are expected to obtain images …

    uiuc Repository record

  4. The cosmic web in the Laduma field

    Oelgeschlager, TilmanDepartment of Astronomy2025

    … complete samples of galaxies with spectroscopic redshift measurements are available. In this thesis, I investigate filaments in the cosmic volume targeted by the Looking at the Distant Universe with the MeerKAT Array (LADUMA) survey at higher redshifts. LADUMA's ancillary data catalogue provides …

    cape-town Repository record

  5. The FORS Deep Field Spectroscopic Survey

    Noll, StefanUniversität Heidelberg

    … properties of galaxy populations at different redshifts provides important constraints on current models of galaxy formation and evolution. In order to investigate this evolutionary process systematically, we obtained high S/N spectra for 265 galaxies at redshifts up to 5.0 with the FORS …

    heid-diss Repository record

  6. Searching for Distant Galaxy Clusters : Optical Observations, Cluster Search Algorithms and the Cluster Selection Function

    Falter, SiegfriedUniversität Heidelberg

    … using a multi-color classification scheme in the redshift range 0.5 < z < 1.5. After contributing to the survey specifications, tests of the multi-color classification with the observational setup showed the feasibility of the project. The photometric redshift accuracy of delta(z) = 0.076 was …

    heid-diss Repository record

  7. Dust-Obscured Galaxy Protocluster and Cluster Survey (DOGPACS): Identifying Large-Scale Structures 9−10 Billion Light-Years Away

    Saha, RiponUniversity of Missouri--Kansas City2022

    … of nearly 300 galaxy cluster candidates at redshift 1.3 < z < 1.8 (9-10 billion light-years away) during the formation epoch of the galaxy clusters. This study leverages the fact that high-z galaxy clusters and protoclusters exhibit enhanced star-formation and AGN activity in their cores. …

    umkc Repository record

  8. N(th)-Order Correlation Functions of Galaxies From the Sloan Digital Sky Survey

    Ross, Ashley JacobUniversity of Illinois at Urbana-Champaign2015

    … in terms of bias parameters. Using photometric redshift catalogs from SDSS DR5 data, I have created two volume limited samples of galaxies, allowing me to measure o N(theta) as a function of type, redshift, and luminosity. I have found that the higher-order bias of early-type …

    uiuc Repository record

  9. Early Type Galaxies And Reliable Galaxy Cluster Selection

    Song, JeeseonUniversity of Illinois at Urbana-Champaign2011

    … mass distribution of clusters as a function of redshift enables fundamental tests of this structure formation process. My projects have initially been motivated by an intellectual inquiry into how we can effectively and accurately analyze data from large cluster surveys, such as the South Pole …

    uiuc Repository record

  10. The Search for the Highest Redshift Quasars using the Dark Energy Survey

    Reed, SophieUniversity of Cambridge2017

    … material. This allows studies of the IGM at high redshift along different sight lines, providing insight into the metallicity, temperature and homogeneity of the Universe. This thesis discusses a new method of finding high redshift quasars using new multi wavelength data from the Dark Energy …

    cambridge Repository record

  11. The role of obscured activity in galaxy formation

    Wardlow, Julie LouiseDurham University2010

    … which would transform into CMR galaxies at lower redshifts as the star-formation terminates. I detect 36 sources in observations of 0.1 deg^2 of the cluster centre and identify counterparts to ~50% of these submillimetre galaxies (SMGs) using radio, 24-um and IRAC data. Photometric redshifts …

    durham Repository record

  12. The XMM-Newton/SDSS galaxy cluster survey

    Takey, Ali Said AhmedUniversität Potsdam

    … optical counterparts as well as to measure their redshifts that are mandatory to measure their physical properties. The overlap area be- tween the XMM-Newton fields and the SDSS-DR7 imaging, the latest SDSS data release at the starting of the survey, is 210 deg^2. The survey comprises 1180 X-ray …

    potsdam-diss Repository record