Bachelorarbeit Zweigbibliothek Forstwesen Signatur: Dipl 2796 Präsenzexemplar Freihand
Bachelorarbeit Zweigbibliothek Forstwesen Signatur: Dipl 2796 Präsenzexemplar Freihand
Projected Constraints on Modified Gravity Cosmologies from 21cm Intensity Mapping (2009)
Masui, Kiyoshi Wesley, Schmidt, Fabian, Pen, Ue-Li, McDonald, Patrick
We present projected constraints on modified gravity models from the observational technique known as 21cm intensity mapping, where cosmic structure is detected without resolving individual galaxies....
Cosmological Simulations of Normal-Branch Braneworld Gravity (2009)
We introduce a cosmological model based on the normal branch of DGP braneworld gravity with a smooth dark energy component on the brane. The expansion history in this model is identical to LambdaCDM,...
Cluster Constraints on f(R) Gravity (2009)
Schmidt, Fabian, Vikhlinin, Alexey, Hu, Wayne
Modified gravitational forces in models that seek to explain cosmic acceleration without dark energy typically predict deviations in the abundance of massive dark matter halos. We conduct the first,...
Self-Consistent Cosmological Simulations of DGP Braneworld Gravity (2009)
We perform cosmological N-body simulations of the Dvali-Gabadadze-Porrati braneworld model, by solving the full non-linear equations of motion for the scalar degree of freedom in this model, the...
Size Bias in Galaxy Surveys (2009)
Schmidt, Fabian, Rozo, Eduardo, Dodelson, Scott, Hui, Lam, Sheldon, Erin
Only certain galaxies are included in surveys: those bright and large enough to be detectable as extended sources. Because gravitational lensing can make galaxies appear both brighter and larger, the...
Lensing Bias in Cosmic Shear (2009)
Schmidt, Fabian, Rozo, Eduardo, Dodelson, Scott, Hui, Lam, Sheldon, Erin
Only galaxies bright enough and large enough to be unambiguously identified and measured are included in galaxy surveys used to estimate cosmic shear. We demonstrate that because gravitational...
Measurements of the Muon Content of UHECR Air Showers with the Pierre Auger Observatory (2009)
The Pierre Auger Observatory, recently completed, has been operational since 2004. As a hybrid experiment, it allows for a wide range of measurements of UHECR-induced extensive air showers (EAS),...
Non-linear Evolution of f(R) Cosmologies III: Halo Statistics (2008)
Schmidt, Fabian, Lima, Marcos, Oyaizu, Hiroaki, Hu, Wayne
The statistical properties of dark matter halos, the building blocks of cosmological observables associated with structure in the universe, offer many opportunities to test models for cosmic...
Universal Weak Lensing Distortion of Cosmological Correlation Functions (2008)
Dodelson, Scott, Schmidt, Fabian, Vallinotto, Alberto
Gravitational lensing affects observed cosmological correlation functions because observed images do not coincide with true source locations. We treat this universal effect in a general way here,...
Weak Lensing Probes of Modified Gravity (2008)
We study the effect of modifications to General Relativity on large scale weak lensing observables. In particular, we consider three modified gravity scenarios: f(R) gravity, the DGP model, and TeVeS...
Weak Lensing Effects on the Galaxy Three-Point Correlation Function (2008)
Schmidt, Fabian, Vallinotto, Alberto, Sefusatti, Emiliano, Dodelson, Scott
We study the corrections to the galaxy three-point correlation function (3PCF) induced by weak lensing magnification due to the matter distribution along the line of sight. We consistently derive all...
Schmidt, Fabian, Ave, Maximo, Cazon, Lorenzo, Chou, Aaron
Surface detector arrays are designed to measure the spectrum and composition of high-energy cosmic rays by detecting the secondary particle flux of the Extensive Air Showers (EAS) induced by the...
Applying Extensive Air Shower Universality to Ground Detector Data (2007)
Schmidt, Fabian, Ave, Maximo, Cazon, Lorenzo, Chou, Aaron
Air shower universality states that the electromagnetic part of hadron-induced extensive air showers (EAS) can be completely described in terms of the primary energy and shower age. In addition,...
Galaxy-CMB Cross-Correlation as a Probe of Alternative Models of Gravity (2007)
Schmidt, Fabian, Liguori, Michele, Dodelson, Scott
Bekenstein's alternative to general relativity, TeVeS, reduces to Modified Newtonian Dynamics (MOND) in the galactic limit. On cosmological scales, the (potential well overdensity) relationship is...
Khélifi,Bruno, Komin,Nukri, Lohse,Thomas, Masterson,Conor, Schlenker,Stefan, Schmidt,Fabian, ...
H.E.S.S. has observed the very young supernova remnant SN1987A during 2003 in a search for TeV gamma-ray emission. These observations were taken during a build-up phase of H.E.S.S. with 2 operating...
Khélifi, Bruno, Komin, Nukri, Lohse, Thomas, Masterson, Conor, Schlenker, Stefan, ...
The pulsar wind nebulae (PWN) around the Vela and PSR B1706-44 pulsars have been observed in 2003 and 2004 with the H.E.S.S. Cherenkov telescopes. No evidence of a γ-ray emission from either source...
Faulstich, Lukas C., Quasthoff, Uwe, Schmidt, Fabian, Wolff, Christian
We describe a flexible and modular system for keyword extraction and attribution which operates on top of a text mining engine. Texts are analysed in comparison with a large reference corpus and key...
Faulstich, Lukas C., Quasthoff, Uwe, Schmidt, Fabian, Wolff, Christian
We describe a flexible and modular system for keyword extraction and attribution which operates on top of a text mining engine. Texts are analysed in comparison with a large reference corpus and key...
In verschiedenen Bereichen der Linguistik werden Kollokationen genutzt, beispielsweise als Unterstützung bei der Erstellung von Wörterbüchern oder bei der Übersetzung von Fachtexten. Umfangreiche...