Zobrazeno 1 - 10
of 1 864
pro vyhledávání: '"P. Picker"'
We describe some of our group's recent work on common envelopes. Our goal is to understand the onset and outcomes of dynamically unstable mass transfer, including the properties of the binaries left behind and the outflows during the common envelope
Externí odkaz:
http://arxiv.org/abs/2412.10691
Fermi balls are non-topological solitons that can naturally form in an early universe containing a dark sector with heavy fermions and an attractive interaction mediated by a light scalar field. We compute the Fermi ball mass and radius scaling relat
Externí odkaz:
http://arxiv.org/abs/2411.17074
Autor:
Higuchi, Takashi, Akatsuka, Hiroaki, Brossard, Alexis, Fujimoto, Derek, Giampa, Pietro, Hansen-Romu, Sean, Hatanaka, Kichiji, Hino, Masahiro, Ichikawa, Go, Imajo, Sohei, Jamieson, Blair, Kawasaki, Shinsuke, Kitaguchi, Masaaki, Mammei, Russell, Matsumiya, Ryohei, Mishima, Kenji, Picker, Rüdiger, Schreyer, Wolfgang, Shimizu, Hirohiko M., Sidhu, Steve, Vanbergen, Sean
The neutron electric dipole moment (EDM) is a sensitive probe for currently undiscovered sources of charge-parity symmetry violation. As part of the TRIUMF Ultracold Advanced Neutron (TUCAN) collaboration, we are developing spin analyzers for ultraco
Externí odkaz:
http://arxiv.org/abs/2407.15311
Publikováno v:
Phys. Rev. Lett. 133, 091001 (2024)
We investigate the formation of high-redshift supermassive black holes (SMBHs) via the direct collapse of baryonic clouds, where the unwanted formation of molecular hydrogen is successfully suppressed by a Lyman-Werner (LW) photon background from rel
Externí odkaz:
http://arxiv.org/abs/2404.03909
We explore the evolution of massive stars (>8 solar masses) with 1-D models and present analytical fits to the masses and binding energies of the convective portions of their envelopes. These fits are given as functions of total mass, metallicity, an
Externí odkaz:
http://arxiv.org/abs/2402.13180
Publikováno v:
Phys. Rev. D 109, 123016 (2024)
Recent observations of the high-redshift universe have uncovered a significant number of active galactic nuclei, implying that supermassive black holes (SMBHs) would have to have been formed at much earlier times than expected. Direct collapse of met
Externí odkaz:
http://arxiv.org/abs/2312.15062
New lesion segmentation is essential to estimate the disease progression and therapeutic effects during multiple sclerosis (MS) clinical treatments. However, the expensive data acquisition and expert annotation restrict the feasibility of applying la
Externí odkaz:
http://arxiv.org/abs/2307.04513
Autor:
Yoneda, Takuma, Fang, Jiading, Li, Peng, Zhang, Huanyu, Jiang, Tianchong, Lin, Shengjie, Picker, Ben, Yunis, David, Mei, Hongyuan, Walter, Matthew R.
There has been a significant research interest in employing large language models to empower intelligent robots with complex reasoning. Existing work focuses on harnessing their abilities to reason about the histories of their actions and observation
Externí odkaz:
http://arxiv.org/abs/2306.17840
Stein operators allow to characterise probability distributions via differential operators. Based on these characterisations, we develop a new method of point estimation for marginal parameters of strictly stationary and ergodic processes, which we c
Externí odkaz:
http://arxiv.org/abs/2305.19031
Black holes may form in present-day collapse of microscopic structures of dark matter. We show that, if microstructure black holes (MSBH) with mass $m\sim 10^{13}~g$ are produced, the spectrum of gamma rays from their evaporation agrees remarkably we
Externí odkaz:
http://arxiv.org/abs/2305.13434