Astrophysics – Page 371 – Kavli Institute Pre-Print Publications

Two can play at that game: constraining the role of supernova and AGN feedback in dwarf galaxies with cosmological zoom-in simulations

Posted by klaurent June 22, 2022Cambridge

Kavli Affiliate: Debora Sijacki | First 5 Authors: Sophie Koudmani, Debora Sijacki, Matthew C. Smith, , | Summary: There is growing observational evidence for dwarf galaxies hosting active galactic nuclei (AGN), including hints of AGN-driven outflows in dwarfs. However, in the common theoretical model of galaxy formation, efficient supernova (SN) feedback is the tool of […]

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Probable Dormant Neutron Star in a Short-Period Binary System

Posted by klaurent June 22, 2022Peking

Kavli Affiliate: Subo Dong | First 5 Authors: Tsevi Mazeh, Simchon Faigler, Dolev Bashi, Sahar Shahaf, Niv Davidson | Summary: We have identified 2XMM J125556.57+565846.4, at a distance of 600 pc, as a binary system consisting of a normal star and a probable dormant neutron star. Optical spectra exhibit a slightly evolved F-type single star, […]

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Is there a sub-parsec-scale jet base in the nearby dwarf galaxy NGC 4395?

Posted by klaurent June 22, 2022Peking

Kavli Affiliate: Luis C. Ho | First 5 Authors: Jun Yang, Xiaolong Yang, Joan M. Wrobel, Zsolt Paragi, Leonid I. Gurvits | Summary: NGC 4395 is a dwarf galaxy at a distance of about 4.3 Mpc (scale: ~0.021 pc mas$^{-1}$). It hosts an intermediate-mass black hole (IMBH) with a mass between ~10$^4$ and ~10$^5$ solar […]

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Searching for ultralight scalar dark matter with muonium and muonic atoms

Posted by klaurent June 22, 2022July 11, 2022Tokyo

Kavli Affiliate: Yevgeny V. Stadnik | First 5 Authors: Yevgeny V. Stadnik, , , , | Summary: Ultralight scalar dark matter may induce apparent oscillations of the muon mass, which may be directly probed via temporal shifts in the spectra of muonium and muonic atoms. Existing datasets and ongoing spectroscopy measurements with muonium are capable […]

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Searching for ultralight scalar dark matter with muonium and muonic atoms

Posted by klaurent June 22, 2022Tokyo

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Searching for ultralight scalar dark matter with muonium and muonic atoms

Posted by dbos June 22, 2022Tokyo

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Tunneling between multiple histories as a solution to the information loss paradox

Posted by klaurent June 21, 2022July 11, 2022Tokyo

Kavli Affiliate: Misao Sasaki | First 5 Authors: Pisin Chen, Misao Sasaki, Dong-han Yeom, Junggi Yoon, | Summary: The information loss paradox associated with black hole Hawking evaporation is an unresolved problem in modern theoretical physics. In a recent brief essay, we revisited the the evolution of the black hole entanglement entropy via the Euclidean […]

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Tunneling between multiple histories as a solution to the information loss paradox

Posted by klaurent June 21, 2022Tokyo

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Polarized X-rays Constrain The Disk-Jet Geometry in a Black Hole X-ray Binary

Posted by klaurent June 20, 2022MIT

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Henric Krawczynski, Fabio Muleri, Michal Dovčiak, Alexandra Veledina, Nicole Rodriguez Cavero | Summary: In a black hole X-ray binary (XRB) system, gas accreted from a normal star onto a black hole glows brightly in X-rays. We report on an observation of the XRB Cygnus X-1 (Cyg […]

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Cosmological forecasts of the CSST photometric and spectroscopic multi-probe surveys

Posted by klaurent June 20, 2022Peking

Kavli Affiliate: Hu Zhan | First 5 Authors: Haitao Miao, Yan Gong, Xuelei Chen, Zhiqi Huang, Xiao-Dong Li | Summary: As one of Stage IV space-based telescopes, the China Space Station Telescope (CSST) can perform photometric and spectroscopic surveys simultaneously to efficiently explore the Universe with extreme precision. In this work, we investigate several powerful […]

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