Astrophysics – Page 447 – Kavli Institute Pre-Print Publications

High-precision temperature monitoring system for room-temperature equipment in astrophysical observations

Posted by klaurent May 23, 2022Tokyo

Kavli Affiliate: Nobuhiko Katayama | First 5 Authors: Daiki Tanabe, Masaya Hasegawa, Masashi Hazumi, Nobuhiko Katayama, Shuhei Kikuchi | Summary: We present a precise thermometry system to monitor room-temperature components of a telescope for radio-astronomy such as cosmic microwave background (CMB) observation. The system realizes precision of 1 mK${rm sqrt{s}}$ on a timescale of 20 […]

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CMB power spectra and cosmological parameters from Planck PR4 with CamSpec

Posted by klaurent May 22, 2022May 31, 2022Cambridge

Kavli Affiliate: George Efstathiou | First 5 Authors: Erik Rosenberg, Steven Gratton, George Efstathiou, , | Summary: We present angular power spectra and cosmological parameter constraints derived from the Planck PR4 (NPIPE) maps of the Cosmic Microwave Background. NPIPE, released by the Planck Collaboration in 2020, is a new processing pipeline for producing calibrated frequency […]

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CMB power spectra and cosmological parameters from Planck PR4 with CamSpec

Posted by klaurent May 22, 2022Cambridge

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On the Cosmology of Dirac-Born-Infeld dRGT Massive Gravity

Posted by klaurent May 22, 2022Peking

Kavli Affiliate: Lijing Shao | First 5 Authors: Sobhan Kazempour, Amin Rezaei Akbarieh, Hossein Motavalli, Lijing Shao, | Summary: We introduce the cosmological analysis of the Dirac-Born-Infeld dRGT massive gravity theory which is a new extended of de Rham-Gabadadze-Tolley (dRGT) massive gravity. In this theory, we consider the Dirac-Born-Infeld (DBI) scalar field which is coupled […]

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Cosmology of Dirac-Born-Infeld dRGT massive gravity

Posted by klaurent May 22, 2022Peking

Kavli Affiliate: Lijing Shao | First 5 Authors: Sobhan Kazempour, Amin Rezaei Akbarieh, Hossein Motavalli, Lijing Shao, | Summary: We introduce the cosmological analysis of the Dirac-Born-Infeld dRGT massive gravity theory which is a new extension of de Rham-Gabadadze-Tolley (dRGT) massive gravity. In this theory, we consider the Dirac-Born-Infeld (DBI) scalar field which is coupled […]

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Plasmon-molecule remote coupling via column-structured silica layer for enhancing biophotonic analysis

Posted by klaurent May 22, 2022May 31, 2022Tokyo

Kavli Affiliate: Masahiro Kawasaki | First 5 Authors: Takeo Minamikawa, Reiko Sakaguchi, Yoshinori Harada, Hideharu Hase, Yasuo Mori | Summary: We demonstrated remote plasmonic enhancement (RPE) by a dense random array of Ag nanoislands (AgNIs) that were partially gold-alloyed and attached with column-structured silica (CSS) overlayer of more than 100 nm in thickness. The physical […]

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Gauge Symmetry in Shape Dynamics

Posted by klaurent May 22, 2022May 31, 2022MIT

Kavli Affiliate: Frank Wilczek | First 5 Authors: Frank Wilczek, , , , | Summary: C. N. Yang’s ideas about local gauge symmetry and non-integrable phases have been enormously fertile sources of inspiration in fundamental physics and in the quantum theory of matter. They also arise naturally in describing the dynamics of deformable bodies. Here […]

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Formation of episodic jets and associated flares from black hole accretion systems

Posted by klaurent May 21, 2022Peking

Kavli Affiliate: Feng Yuan | First 5 Authors: Miljenko Cemeljic, Hai Yang, Feng Yuan, Hsien Shang, | Summary: Episodic ejections of blobs (episodic jets) are widely observed in black hole sources and usually associated with flares. In this paper, by performing and analyzing three dimensional general relativity magnetohydrodynamical numerical simulations of accretion flows, we investigate […]

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There and back again: understanding the critical properties of backsplash galaxies

Posted by klaurent May 20, 2022MIT

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Josh Borrow, Mark Vogelsberger, Stephanie O’Neil, Michael A. McDonald, Aaron Smith | Summary: Backsplash galaxies are galaxies that once resided inside a cluster, and have migrated back outside as they move towards the apocenter of their orbit. The kinematic properties of these galaxies are well understood, thanks […]

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There and back again: understanding the critical properties of backsplash galaxies

Posted by klaurent May 20, 2022MIT

Kavli Affiliate: Michael A. McDonald | First 5 Authors: Josh Borrow, Mark Vogelsberger, Stephanie O’Neil, Michael A. McDonald, Aaron Smith | Summary: Backsplash galaxies are galaxies that once resided inside a cluster, and have migrated back oustide as they move towards the apocentre of their orbit. The kinematic properties of these galaxies are well understood, […]

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