X-ray polarization detection of Cassiopeia A with IXPE

Kavli Affiliate: Nicola Omodei | First 5 Authors: Jacco Vink, Dmitry Prokhorov, Riccardo Ferrazzoli, Patrick Slane, Ping Zhou | Summary: We report on a 5$sigma$ detection of polarized 3-6 keV X-ray emission from the supernova remnant Cassiopeia A with the Imaging X-ray Polarimetry Explorer (IXPE) mission. The overall polarization degree of 1.8 $pm$ 0.3% is […]


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When quantum corrections alter the predictions of classical field theory for scalar field dark matter

Kavli Affiliate: Tom Abel | First 5 Authors: Andrew Eberhardt, Michael Kopp, Tom Abel, , | Summary: We investigate the timescale on which quantum corrections alter the predictions of classical field theory for scalar field dark matter. This is accomplished by including second order terms in the evolution proportional to the covariance of the field […]


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Formal Analysis of Lending Pools in Decentralized Finance

Kavli Affiliate: James Chiang | First 5 Authors: Massimo Bartoletti, James Chiang, Tommi Junttila, Alberto Lluch Lafuente, Massimiliano Mirelli | Summary: Decentralised Finance (DeFi) applications constitute an entire financial ecosystem deployed on blockchains. Such applications are based on complex protocols and incentive mechanisms whose financial safety is hard to determine. Besides, their adoption is rapidly […]


Continue.. Formal Analysis of Lending Pools in Decentralized Finance

Formal Analysis of Lending Pools in Decentralized Finance

Kavli Affiliate: James Chiang | First 5 Authors: Massimo Bartoletti, James Chiang, Tommi Junttila, Alberto Lluch Lafuente, Massimiliano Mirelli | Summary: Decentralised Finance (DeFi) applications constitute an entire financial ecosystem deployed on blockchains. Such applications are based on complex protocols and incentive mechanisms whose financial safety is hard to determine. Besides, their adoption is rapidly […]


Continue.. Formal Analysis of Lending Pools in Decentralized Finance

The Evolution and Mass Dependence of Galaxy Cluster Pressure Profiles at 0.05 $le z le$ 0.60 and $4 times 10^{14}$ M$_{odot}$ $le textrm{M}_{500} le 30 times 10^{14}$ M$_{odot}$

Kavli Affiliate: Steven W. Allen | First 5 Authors: Jack Sayers, Adam B. Mantz, Elena Rasia, Steven W. Allen, Weiguang Cui | Summary: We have combined X-ray observations from Chandra with Sunyaev-Zel’dovich (SZ) effect data from Planck and Bolocam to measure intra-cluster medium pressure profiles from 0.03R$_{500}$ $le$ R $le$ 5R$_{500}$ for a sample of […]


Continue.. The Evolution and Mass Dependence of Galaxy Cluster Pressure Profiles at 0.05 $le z le$ 0.60 and $4 times 10^{14}$ M$_{odot}$ $le textrm{M}_{500} le 30 times 10^{14}$ M$_{odot}$

The Evolution and Mass Dependence of Galaxy Cluster Pressure Profiles at 0.05 $le z le$ 0.60 and $4 times 10^{14}$ M$_{odot}$ $le textrm{M}_{500} le 30 times 10^{14}$ M$_{odot}$

Kavli Affiliate: Adam B. Mantz | First 5 Authors: Jack Sayers, Adam B. Mantz, Elena Rasia, Steven W. Allen, Weiguang Cui | Summary: We have combined X-ray observations from Chandra with Sunyaev-Zel’dovich (SZ) effect data from Planck and Bolocam to measure intra-cluster medium pressure profiles from 0.03R$_{500}$ $le$ R $le$ 5R$_{500}$ for a sample of […]


Continue.. The Evolution and Mass Dependence of Galaxy Cluster Pressure Profiles at 0.05 $le z le$ 0.60 and $4 times 10^{14}$ M$_{odot}$ $le textrm{M}_{500} le 30 times 10^{14}$ M$_{odot}$

Tidal disruption of solitons in self-interacting ultralight axion dark matter

Kavli Affiliate: Risa H. Wechsler | First 5 Authors: Noah Glennon, Ethan O. Nadler, Nathan Musoke, Arka Banerjee, Chanda Prescod-Weinstein | Summary: Ultralight axions (ULAs) are promising dark matter candidates that can have a distinct impact on the formation and evolution of structure on nonlinear scales relative to the cold, collisionless dark matter (CDM) paradigm. […]


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The Robotic Multi-Object Focal Plane System of the Dark Energy Spectroscopic Instrument (DESI)

Kavli Affiliate: Kevin Reil | First 5 Authors: Joseph Harry Silber, Parker Fagrelius, Kevin Fanning, Michael Schubnell, Jessica Nicole Aguilar | Summary: A system of 5,020 robotic fiber positioners was installed in 2019 on the Mayall Telescope, at Kitt Peak National Observatory. The robots automatically re-target their optical fibers every 10 – 20 minutes, each […]


Continue.. The Robotic Multi-Object Focal Plane System of the Dark Energy Spectroscopic Instrument (DESI)

The Robotic Multi-Object Focal Plane System of the Dark Energy Spectroscopic Instrument (DESI)

Kavli Affiliate: Kevin Reil | First 5 Authors: Joseph Harry Silber, Parker Fagrelius, Kevin Fanning, Michael Schubnell, Jessica Nicole Aguilar | Summary: A system of 5,020 robotic fiber positioners was installed in 2019 on the Mayall Telescope, at Kitt Peak National Observatory. The robots automatically re-target their optical fibers every 10 – 20 minutes, each […]


Continue.. The Robotic Multi-Object Focal Plane System of the Dark Energy Spectroscopic Instrument (DESI)

The coupling of an EUV coronal wave and ion acceleration in a Fermi-LAT behind-the-limb solar flare

Kavli Affiliate: Nicola Omodei | First 5 Authors: Melissa Pesce-Rollins, Nicola Omodei, Sam Krucker, Niccol`o Di Lalla, Wen Wang | Summary: We present the Fermi-LAT observations of the behind-the-limb (BTL) flare of July 17, 2021 and the joint detection of this flare by STIX onboard Solar Orbiter. The separation between Earth and the Solar Orbiter […]


Continue.. The coupling of an EUV coronal wave and ion acceleration in a Fermi-LAT behind-the-limb solar flare