Incorporating galaxy cluster triaxiality in stacked cluster weak lensing analyses

Kavli Affiliate: Eli Rykoff | First 5 Authors: Zhuowen Zhang, Hao-Yi Wu, Yuanyuan Zhang, Joshua Frieman, Chun-Hao To | Summary: Counts of galaxy clusters offer a high-precision probe of cosmology, but control of systematic errors will determine the accuracy of this measurement. Using Buzzard simulations, we quantify one such systematic, the triaxiality distribution of clusters […]


Continue.. Incorporating galaxy cluster triaxiality in stacked cluster weak lensing analyses

Incorporating galaxy cluster triaxiality in stacked cluster weak lensing analyses

Kavli Affiliate: Eli Rykoff | First 5 Authors: Zhuowen Zhang, Hao-Yi Wu, Yuanyuan Zhang, Joshua Frieman, Chun-Hao To | Summary: Counts of galaxy clusters offer a high-precision probe of cosmology, but control of systematic errors will determine the accuracy of this measurement. Using Buzzard simulations, we quantify one such systematic, the triaxiality distribution of clusters […]


Continue.. Incorporating galaxy cluster triaxiality in stacked cluster weak lensing analyses

Consistent and non-consistent deformations of gravitational theories

Kavli Affiliate: J. S. Villasenor | First 5 Authors: J. Fernando Barbero G., Marc Basquens, Bogar Díaz, Eduardo J. S. Villaseñor, | Summary: We study the internally abelianized version of a range of gravitational theories, written in connection tetrad form, and study the possible interaction terms that can be added to them in a consistent […]


Continue.. Consistent and non-consistent deformations of gravitational theories

Consistent and non-consistent deformations of gravitational theories

Kavli Affiliate: J. S. Villasenor | First 5 Authors: J. Fernando Barbero G., Marc Basquens, Bogar Díaz, Eduardo J. S. Villaseñor, | Summary: We study the internally abelianized version of a range of gravitational theories, written in connection tetrad form, and study the possible interaction terms that can be added to them in a consistent […]


Continue.. Consistent and non-consistent deformations of gravitational theories

The halo bispectrum as a sensitive probe of massive neutrinos and baryon physics

Kavli Affiliate: Jia Liu | First 5 Authors: Victoria Yankelevich, Ian G. McCarthy, Juliana Kwan, Sam G. Stafford, Jia Liu | Summary: The power spectrum has been a workhorse for cosmological studies of large-scale structure. However, the present-day matter distribution is highly non-Gaussian and significant cosmological information is also contained in higher-order correlation functions. Meanwhile, […]


Continue.. The halo bispectrum as a sensitive probe of massive neutrinos and baryon physics

On the robustness of the velocity anisotropy parameter in probing the stellar kinematics in Milky Way like galaxies: Take away from TNG50 simulation

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Razieh Emami, Lars Hernquist, Mark Vogelsberger, Xuejian Shen, Joshua S. Speagle | Summary: We analyze the velocity anisotropy of stars in real and energy space for a sample of Milky Way-like galaxies in the TNG50 simulation. We employ different selection criteria, including spatial, kinematic and metallicity cuts, […]


Continue.. On the robustness of the velocity anisotropy parameter in probing the stellar kinematics in Milky Way like galaxies: Take away from TNG50 simulation

Ionization yield measurement in a germanium CDMSlite detector using photo-neutron sources

Kavli Affiliate: D. B. Macfarlane | First 5 Authors: SuperCDMS Collaboration, M. F. Albakry, I. Alkhatib, D. W. P. Amaral, T. Aralis | Summary: Two photo-neutron sources, $^{88}$Y$^{9}$Be and $^{124}$Sb$^{9}$Be, have been used to investigate the ionization yield of nuclear recoils in the CDMSlite germanium detectors by the SuperCDMS collaboration. This work evaluates the yield […]


Continue.. Ionization yield measurement in a germanium CDMSlite detector using photo-neutron sources

Strong spiral arms drive secular growth of pseudo bulges in disk galaxies

Kavli Affiliate: Jing Wang | First 5 Authors: Si-Yue Yu, Dewang Xu, Luis C. Ho, Jing Wang, Wei-Bo Kao | Summary: Spiral-driven instabilities may drive gas inflow to enhance central star formation in disk galaxies. We investigate this hypothesis using the Sloan Digital Sky Survey (SDSS) in a sample of 2779 nearby unbarred star-forming main-sequence […]


Continue.. Strong spiral arms drive secular growth of pseudo bulges in disk galaxies

Evidence for quasar fast outflows being accelerated at the scale of tens of parsecs

Kavli Affiliate: Luis C. Ho | First 5 Authors: Zhicheng He, Guilin Liu, Tinggui Wang, Guobin Mou, Richard Green | Summary: Quasar outflows may play a crucial role in regulating the host galaxy, although the spatial scale of quasar outflows remain a major enigma, with their acceleration mechanism poorly understood. The kinematic information of outflow […]


Continue.. Evidence for quasar fast outflows being accelerated at the scale of tens of parsecs