The SDSS density field and the morphology of the supercluster-void network

• Applicant: Privatdozent Dr. Volker Müller
• Subject Area: Astrophysics and Astronomy
• Term: from 2010 to 2015
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 166741232

• Final Report Year: 2016

Final Report Abstract

The aim of the project was to study the Sloan digital sky survey (SDSS) redshift survey, to derive the dark matter density field and to identify elements of cosmic web. Complementary we planned to investigate galaxy clustering and the morphology of galaxies within the cosmic web. Both directtions were followed during the period of the project funding with a series of cosmological conclusions concering color-dependent clustering of galaxies, the study of the anisotropy of clustering due to cosmic streaming velocities, the description of clustering in terms of the halo occupation distribution, the signature of baryonic acoustic oscillations in the bias signal, and its use as precise cosmic yardsticks. The post-doc paid by this project, Dr. Sebastian Nuza, was a member of the German Participating Group in the SDSS-consortium during this period. He participated actively in this big collaboration and submitted a first-author paper on galaxy clustering. The analysed data range from SDSS data release 7 to 11. Also, 2MASS data in the local universe were used for stucying the cosmic web. We used simulation data from the Millenium run and from the AIP-multi-dark simulation archive to compare observations and theoretical results and for deriving cosmological consequences.

Publications

• Measuring the Cosmic Web. Baltic Astronomy 20, 259 - 266 (2011)
  Müller, V., Hoffmann, K., Nuza, S.
  
• Cosmic structure and dynamics of the local Universe. MNRAS 427, 35 (2012)
  Kitaura, F.-S., Erdoǧdu, P., Nuza, S., Khalatyan, A., Angulo, R., Hoffman, Y., Gottlöber, S.
  
• he Ninth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Baryon Oscillation Spectroscopic Survey. ApJS 203, 21 (13 pp) (2012)
  Ahn, C., ... Nuza, S., ... Steinmetz, M., ...
  
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: baryon acoustic oscillations in the Data Release 9 spectroscopic galaxy sample. MNRAS 427, 3435-3467 (2012)
  Anderson, L., ... Nuza, S., ...
  
• The Baryon Oscillation Spectroscopic Survey of SDSS-III. AJ 145, 10 (41pp) (2013)
  Dawson, K., ..., Nuza, S., ...
  
• The clustering of galaxies at z ≈ 0.5 in the SDSS-III Data Release 9 BOSS-CMASS sample: a test for the ΛCDM cosmology. MNRAS 432, 743 - 760 (2013)
  Nuza, S., ..., Gottlöber, S., ... Steinmetz, M.
  
• The Clustering of Galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Luminosity and Color Dependence and Redshift Evolution. ApJ 767, 122 (19pp) (2013)
  Guo,H., Zehavi, I., Zheng, Z., ..., Nuza, S., ...
  
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the Data Release 10 and 11 galaxy samples. MNRAS 441, 24 - 62 (2014)
  Anderson, L., ... Nuza, S., ...
  
• The cosmic web of the Local Universe: cosmic variance, matter content and its relation to galaxy morphology. MNRAS 445 (2014) 988 - 1001
  Nuza, S., Kitaura, R., S.Hess, S., Libeskind, N., V.Müller
  
• The Tenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Apache Point Observatory Galactic Evolution Experimen. ApJS 211, 17 (16 pp) (2014)
  Ahn, C., ... Nuza, S., ... Steinmetz, M., ...