Zobrazeno 1 - 10
of 148
pro vyhledávání: '"Kunze, Kerstin"'
Autor:
Kunze, Kerstin E.
The cross correlation between the CMB Doppler mode and the 21 cm line brightness temperature is calculated in the presence of a stochastic primordial magnetic field. Potential detectability is estimated for Planck 2018 bestfit parameters in combinati
Externí odkaz:
http://arxiv.org/abs/2306.06049
Autor:
Kunze, Kerstin E.
Penrose limits are considered in space-times admitting two abelian, space-like Killing vectors in vacuum as well as in the presence of an electromagnetic field. This type of space-times describe inhomogeneous cosmologies as well as colliding plane gr
Externí odkaz:
http://arxiv.org/abs/2212.11212
Autor:
Kunze, Kerstin E.
At lowest order comoving magnetic fields which are frozen-into the expanding cosmic fluid do not evolve in time. At next-to-leading order the induction equation is sourced by the interaction term between the baryon velocity and the magnetic field amp
Externí odkaz:
http://arxiv.org/abs/2207.09859
Autor:
Kunze, Kerstin E.
Publikováno v:
JCAP 11(2021)044
Angular power spectra of temperature anisotropies and polarization of the cosmic microwave background (CMB) as well as the linear matter power spectra are calculated for models with three light neutrinos with non-thermal phase-space distributions in
Externí odkaz:
http://arxiv.org/abs/2106.00648
Publikováno v:
A&A 643, A54 (2020)
Using a set of cosmological hydro-dynamical simulations, we constrained the properties of primordial magnetic fields by studying their impact on the formation and evolution of dwarf galaxies. We performed a large set of simulations (8 dark matter onl
Externí odkaz:
http://arxiv.org/abs/2005.05401
Autor:
Elvis, Martin, Arenberg, Jon, Ballantyne, David, Bautz, Mark, Beichman, Charles, Booth, Jeffrey, Buckley, James, Burns, Jack O., Camp, Jordan, Conti, Alberto, Cooray, Asantha, Danchi, William, Delabrouille, Jacques, De Zotti, Gianfranco, Flauger, Raphael, Glenn, Jason, Grindlay, Jonathan, Hanany, Shaul, Hartmann, Dieter, Helou, George, Herranz, Diego, Hubmayr, Johannes, Johnson, Bradley R., Jones, William, Kasdin, N. Jeremy, Kouvoliotou, Chryssa, Kunze, Kerstin E., Lawrence, Charles, Lazio, Joseph, Lipscy, Sarah, Lillie, Charles F., Maccarone, Tom, Madsen, Kristin C., Mushotzky, Richard, Olinto, Angela, Plavchan, Peter, Pogosian, Levon, Ptak, Andrew, Ray, Paul, Rocha, Graca M., Scowen, Paul, Seager, Sara, Tinto, Massimo, Tomsick, John, Tucker, Gregory., Ulmer, Mel, Wang, Yun, Wollack, Edward J.
Astrophysics spans an enormous range of questions on scales from individual planets to the entire cosmos. To address the richness of 21st century astrophysics requires a corresponding richness of telescopes spanning all bands and all messengers. Much
Externí odkaz:
http://arxiv.org/abs/2002.12739
Autor:
Kunze, Kerstin E.
The Lorentz term raises the linear matter power on small scale which leads to interesting signatures in the 21 cm signal. Numerical simulations of the resuting nonlinear density field, the distribution of ionized hydrogen and the 21 cm signal at diff
Externí odkaz:
http://arxiv.org/abs/1805.10943
Autor:
Kunze, Kerstin E.
Publikováno v:
Phys. Rev. D 96, 063526 (2017)
Magnetic fields present before decoupling are damped due to radiative viscosity. This energy injection affects the thermal and ionization history of the cosmic plasma. The implications for the CMB anisotropies and polarization are investigated for di
Externí odkaz:
http://arxiv.org/abs/1703.03650
Autor:
Kunze, Kerstin E.
Publikováno v:
CERN-2016-005, pp. 177-212
Cosmology is becoming an important tool to test particle physics models. We provide an overview of the standard model of cosmology with an emphasis on the observations relevant for testing fundamental physics.
Comment: Lectures given at the CERN
Comment: Lectures given at the CERN
Externí odkaz:
http://arxiv.org/abs/1604.07817
Publikováno v:
JCAP 1512 (2015) 028
A variety of beyond the standard model scenarios contain very light hidden sector U(1) gauge bosons undergoing kinetic mixing with the photon. The resulting oscillation between ordinary and hidden photons leads to spectral distortions of the cosmic m
Externí odkaz:
http://arxiv.org/abs/1507.02614