A5052238669- Galaxies: Formation, Evolution, Phenomena
- Astronomy and Astrophysical Research
- Cosmology and Gravitation Theories
- Gamma-ray bursts and supernovae
- Stellar, planetary, and galactic studies
- Historical Psychiatry and Medical Practices
- Astronomical Observations and Instrumentation
- Radio Astronomy Observations and Technology
- Gaussian Processes and Bayesian Inference
- Medical History and Research
- Astrophysical Phenomena and Observations
- Astrophysics and Cosmic Phenomena
- Adaptive optics and wavefront sensing
- Particle Accelerators and Free-Electron Lasers
- Neonatal Respiratory Health Research
- Congenital Diaphragmatic Hernia Studies
- Psychoanalysis and Social Critique
- Statistical Methods and Bayesian Inference
- Academic and Historical Perspectives in Psychology
- Renal and related cancers
- Superconducting and THz Device Technology
Zentrum für Psychiatrie Südwürttemberg
2023
Universität Ulm
2023
Ludwig-Maximilians-Universität München
2014-2019
Excellence Cluster Universe
2014-2019
German Center for Lung Research
2014
Medizinische Hochschule Hannover
2014
We present a catalog of galaxy clusters selected via their Sunyaev-Zel'dovich (SZ) effect signature from 2500 deg$^2$ South Pole Telescope (SPT) data. This work represents the complete sample detected at high significance in 2500-square-degree SPT-SZ survey, which was completed 2011. A total 677 (409) cluster candidates are identified above signal-to-noise threshold $\xi$ =4.5 (5.0). Ground- and space-based optical near-infrared (NIR) imaging confirms overdensities similarly colored galaxies...
We present a velocity dispersion-based mass calibration of the South Pole Telescope Sunyaev-Zel'dovich effect survey (SPT-SZ) galaxy cluster sample. Using homogeneously selected sample 100 candidates from 720 deg2 along with 63 dispersion ($\sigma_v$) and 16 X-ray Yx measurements clusters, we simultaneously calibrate mass-observable relation constrain cosmological parameters. The calibrations using $\sigma_v$ are consistent at $0.6\sigma$ level, preferring ~16% higher masses. use full...
Macrophage progenitors are an effective and long-lasting therapy of hereditary pulmonary alveolar proteinosis.
We cross-match galaxy cluster candidates selected via their Sunyaev–Zel'dovich effect (SZE) signatures in 129.1 deg2 of the South Pole Telescope 2500d SPT-SZ survey with optically identified clusters from Dark Energy Survey science verification data. identify 25 between 0.1 ≲ z 0.8 union and redMaPPer (RM) samples. RM is an optical finding algorithm that also returns a richness estimate for each cluster. model λ-mass relation following function 〈ln λ|M500〉 ∝ Bλln M500 + Cλln E(z) use masses...
Clusters of galaxies are expected to gravitationally lens the cosmic microwave background (CMB) and thereby generate a distinct signal in CMB on arcminute scales. Measurements this effect can be used constrain masses galaxy clusters with data alone. Here we present measurement lensing by using from South Pole Telescope (SPT). We develop maximum likelihood approach extract cluster validate method mock data. quantify effects our analysis several potential sources systematic error find that...
The adiabatic evolution of the temperature cosmic microwave background (CMB) is a key prediction standard cosmology. We study deviations from expected CMB form T(z) = T0(1 + z)1 − α using measurements spectrum Sunyaev–Zel'dovich effect with South Pole Telescope (SPT). present method for ratio signal measured at 95 and 150舁GHz in SPT data to constrain CMB. demonstrate that this approach provides unbiased results mock observations clusters new set hydrodynamical simulations. apply sample 158...
We study the stellar, brightest cluster galaxy (BCG) and intracluster medium (ICM) masses of 14 South Pole Telescope (SPT) selected clusters with median redshift z = 0.9 mass M500 6 × 1014 M⊙. estimate stellar for each BCG using six photometric bands, ICM X-ray observations virial SPT Sunyaev–Zel'dovich effect signature. At 0.9, |$M_{\star }^{\mathrm{BCG}}$| constitutes 0.12 ± 0.01 per cent halo a M⊙ cluster, this fraction falls as |$M_{500}^{-0.58\pm 0.07}$|. The function has...
We study the galaxy populations in 74 Sunyaev Zeldovich Effect (SZE) selected clusters from South Pole Telescope (SPT) survey that have been imaged science verification phase of Dark Energy Survey (DES). The sample extends up to $z\sim 1.1$ with $4 \times 10^{14} M_{\odot}\le M_{200}\le 3\times 10^{15} M_{\odot}$. Using band containing 4000~\AA\ break and its redward neighbor, we color-magnitude distributions cluster galaxies $\sim m_*+2$, finding: (1) intrinsic rest frame $g-r$ color width...
Using the science verification data of Dark Energy Survey (DES) for a new sample 106 X-Ray selected clusters and groups, we study stellar mass growth Bright Central Galaxies (BCGs) since redshift 1.2. Compared with expectation in semi-analytical model applied to Millennium Simulation, observed BCGs become under-massive/under-luminous decreasing redshift. We incorporate uncertainties associated cluster mass, redshift, BCG measurements into analysis redshift-dependent BCG-cluster relation,...
We report results of a study Planck Sunyaev-Zel'dovich effect (SZE) selected galaxy cluster candidates using the Panoramic Survey Telescope & Rapid Response System (Pan-STARRS) imaging data. first examine 150 confirmed clusters with spectroscopic redshifts to test our algorithm for identifying optical counterparts and measuring their redshifts; have typical accuracy $\sigma_{z/(1+z)} \sim 0.022$ this sample. Using 60 random sky locations, we estimate that chance contamination through...
We present a detection of the enhancement in number densities background galaxies induced from lensing magnification and use it to test Sunyaev–Zel'dovich effect (SZE-) inferred masses sample 19 galaxy clusters with median redshift z ≃ 0.42 selected South Pole Telescope SPT-SZ survey. These are observed by Megacam on Magellan Clay though gri filters. Two populations for this study through their photometric colours; they have redshifts zmedian 0.9 (low-z background) 1.8 (high-z background)....
We use microwave observations from the South Pole Telescope (SPT) to examine Sunyaev–Zel'dovich effect (SZE) signatures of a sample 46 X-ray selected groups and clusters drawn ∼6 deg2 XMM–Newton Blanco Cosmology Survey. These systems extend redshift z = 1.02 probe SZE signal lowest luminosities (≥1042 erg s−1) yet; these characteristics make this analysis complementary previous studies. develop an tool, using luminosity as mass proxy, extract selection-bias-corrected constraints on...
Using $\sim 100$ X-ray selected clusters in the Dark Energy Survey Science Verification data, we constrain luminosity function (LF) of cluster red sequence galaxies as a redshift. This is first homogeneous optical/X-ray sample large enough to evolution simultaneously redshift ($0.1
This article traces the career, scientific achievements, and emigration of Berlin-born physician, psychoanalyst, psychosomatic researcher Eric Wittkower. Trained in Berlin practicing internal medicine, he became persecuted by Nazi regime and, after fleeing Germany via Switzerland, continued his professional career United Kingdom, where turned to medicine worked service British Army during World War II. After two decades UK, Wittkower joined McGill University Canada. His increasingly...