The Atacama Cosmology Telescope: $B$-mode delensing with DR6 data and external tracers of large-scale structure

Posted by klaurent Cambridge

Kavli Affiliate: Anthony Challinor | Summary:Large-scale $B$-mode polarization of the cosmic microwave background (CMB) is a prime target for current and future experiments in search of primordial gravitational waves (PGW). With increasingly sensitive instruments being deployed, secondary $B$-modes induced by the weak gravitational lensing of CMB photons are becoming an important limitation and need to […]


Continue.. The Atacama Cosmology Telescope: $B$-mode delensing with DR6 data and external tracers of large-scale structure

Modeling Galaxy Formation in Cosmological Simulations with CRK-HACC

Posted by klaurent Chicago

Kavli Affiliate: Katrin Heitmann | Summary:Self-consistently modeling baryonic effects in survey-scale cosmological simulations has become increasingly important as the diversity, precision, and statistical reach of modern observations continue to improve. The advent of exascale computing now enables a new generation of simulations that couple these physical processes across full-sky volumes with excellent statistical sampling of […]


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Gravitational waves from the late inspiral, transition, and plunge of small-mass-ratio eccentric binaries

Posted by klaurent MIT

Kavli Affiliate: Scott A. Hughes | Summary:Black hole binaries with small mass ratios will be important sources for the forthcoming Laser Interferometer Space Antenna (LISA) mission. Models of such binaries also serve as useful tools for understanding the dynamics of compact binary systems and the gravitational waves they emit. Using an eccentric Ori-Thorne procedure developed […]


Continue.. Gravitational waves from the late inspiral, transition, and plunge of small-mass-ratio eccentric binaries

Gravitational waves from the late inspiral, transition, and plunge of small-mass-ratio eccentric binaries

Posted by klaurent MIT

Kavli Affiliate: Scott A. Hughes | Summary:Black hole binaries with small mass ratios will be important sources for the forthcoming Laser Interferometer Space Antenna (LISA) mission. Models of such binaries also serve as useful tools for understanding the dynamics of compact binary systems and the gravitational waves they emit. Using an eccentric Ori-Thorne procedure developed […]


Continue.. Gravitational waves from the late inspiral, transition, and plunge of small-mass-ratio eccentric binaries

A Super-Eddington, Lensing-Magnified Quasar at $z=5.07$ observed with JWST

Posted by klaurent MIT

Kavli Affiliate: Robert Simcoe | Summary:We present JWST/NIRCam F070W and F480M imaging for a quasar at $z = 5.07$, J0025-0145, which is magnified by a foreground lensing galaxy. Existing Hubble Space Telescope (HST) imaging does not have sufficient spatial resolution to determine whether the background quasar is multiply imaged. Exploiting the sharp PSF of the […]


Continue.. A Super-Eddington, Lensing-Magnified Quasar at $z=5.07$ observed with JWST

The Intertwined Rise of Collaboration Scale, Reference Diversity, and Breakthrough Potential in Modern Science: A 40-Year Cross-Disciplinary Study

Posted by klaurent Chicago

Kavli Affiliate: David W. Miller | Summary:Over the last four decades, the way knowledge is created in academia has transformed dramatically: research teams have grown larger, scholars draw from ever-wider pools of prior work, and the most influential discoveries increasingly emerge from complex collaborative efforts. Using a massive dataset of over 15 million publications spanning […]


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The Faintest, Extremely Variable X-ray Tidal Disruption Event from a Supermassive Black Hole Binary?

Posted by klaurent Peking

Kavli Affiliate: Fukun Liu| Summary: Tidal disruption events (TDEs), which occur when stars enter the tidal radii of supermassive black holes (SMBHs) and are subsequently torn apart by their tidal forces, represent intriguing phenomena that stimulate growing research interest and pose an increasing number of puzzles in the era of time-domain astronomy. Here we report […]


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Neutral Magnetic Monopole in the Standard Model

Posted by klaurent Stanford

Kavli Affiliate: Hsiao-Mei (Sherry) Cho| First 5 Authors: [#item_custom_name[1, [#item_custom_name[2, [#item_custom_name[3, [#item_custom_name[4, [#item_custom_name[5| Summary:The standard model has the electroweak monopole which has the magnetic charge $4π/e$, as a hybrid between the Dirac and ‘tHooft-Polyakov monopoles. We argue that it may have new type of monopoles, in particular the neutral monopole (“the Z monopole") which is […]


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Neutral Magnetic Monopole in the Standard Model

Posted by klaurent Stanford

Kavli Affiliate: Hsiao-Mei (Sherry) Cho| First 5 Authors: [#item_custom_name[1, [#item_custom_name[2, [#item_custom_name[3, [#item_custom_name[4, [#item_custom_name[5| Summary:The standard model has the electroweak monopole which has the magnetic charge $4π/e$, as a hybrid between the Dirac and ‘tHooft-Polyakov monopoles. We argue that it may have new type of monopoles, in particular the neutral monopole (“the Z monopole") which is […]


Continue.. Neutral Magnetic Monopole in the Standard Model