Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Bar, Nitsan"'
Publikováno v:
ApJL 932 L10 (2022)
Ultra-diffuse galaxies that contain a large sample of globular clusters (GCs) offer an opportunity to test the predictions of galactic dynamics theory. NGC5846-UDG1 is an excellent example, with a high-quality sample of dozens of GC candidates. We sh
Externí odkaz:
http://arxiv.org/abs/2202.10179
Publikováno v:
Phys.Rev.D 105 (2022) 8, 083015
We look for and place observational constraints on the imprint of ultralight dark matter (ULDM) soliton cores in rotation-dominated galaxies. Extending previous analyses, we find a conservative constraint which disfavors the soliton-host halo relatio
Externí odkaz:
http://arxiv.org/abs/2111.03070
Publikováno v:
Phys. Rev. D 104, 043021 (2021)
We investigate what the orbits of globular clusters (GCs) in the Fornax dwarf spheroidal (dSph) galaxy can teach us about dark matter (DM). This problem was recently studied for ultralight dark matter (ULDM). We consider two additional models: (i) fe
Externí odkaz:
http://arxiv.org/abs/2102.11522
Autor:
Cohen-Eliraz, Liron, Ornoy, Asher, Ein-Mor, Eliana, Bar-Nitsan, Moriah, Pilowsky Peleg, Tammy, Calderon-Margalit, Ronit
Publikováno v:
In Neurotoxicology September 2023 98:39-47
Publikováno v:
Phys. Rev. D 101, 123025 (2020)
We present a critical assessment of the SN1987A supernova cooling bound on axions and other light particles. Core-collapse simulations used in the literature to substantiate the bound omitted from the calculation the envelope exterior to the proto-ne
Externí odkaz:
http://arxiv.org/abs/1907.05020
Measurements of the dynamical environment of supermassive black holes (SMBHs) are becoming abundant and precise. We use such measurements to look for ultralight dark matter (ULDM), which is predicted to form dense cores ("solitons") in the centre of
Externí odkaz:
http://arxiv.org/abs/1905.11745
Publikováno v:
Phys. Rev. D 99, 103020 (2019)
Analytic arguments and numerical simulations show that bosonic ultra-light dark matter (ULDM) would form cored density distributions (`solitons') at the center of galaxies. ULDM solitons offer a promising way to exclude or detect ULDM by looking for
Externí odkaz:
http://arxiv.org/abs/1903.03402
Publikováno v:
Phys. Rev. D 99, 123004 (2019)
We study the ratio of neutrino-proton elastic scattering to inverse beta decay event counts, measurable in a scintillation detector like JUNO, as a key observable for identifying the explosion mechanism of a galactic core-collapse supernova. If the s
Externí odkaz:
http://arxiv.org/abs/1811.11178
Publikováno v:
Phys. Rev. D 98, 083027 (2018)
Bosonic ultra-light dark matter (ULDM) would form cored density distributions at the center of galaxies. These cores, seen in numerical simulations, admit analytic description as the lowest energy bound state solution ("soliton") of the Schroedinger-
Externí odkaz:
http://arxiv.org/abs/1805.00122
Publikováno v:
In Aeolian Research June 2016 21:125-130