Astrophysics – Page 239 – Kavli Institute Pre-Print Publications

Gamma-Ray Bursts Observed by the Transiting Exoplanet Survey Satellite: Prompt Optical Counterparts and Afterglows of Swift-XRT Localized GRBs

Posted by dbos August 9, 2023MIT

Kavli Affiliate: Michael Fausnaugh | First 5 Authors: Rahul Jayaraman, Michael Fausnaugh, George R. Ricker, Roland Vanderspek, | Summary: Throughout the past three decades, only a few tens of observations have been made of optical flashes contemporaneous with gamma-ray bursts (GRBs), despite the thousands of GRBs that have been detected during that same timeframe. In […]

Continue..

Gamma-Ray Bursts Observed by the Transiting Exoplanet Survey Satellite: Prompt Optical Counterparts and Afterglows of Swift-XRT Localized GRBs

Posted by dbos August 9, 2023MIT

Kavli Affiliate: Michael Fausnaugh | First 5 Authors: Rahul Jayaraman, Michael Fausnaugh, George R. Ricker, Roland Vanderspek, | Summary: Very few detections have been made of optical flashes contemporaneous with the prompt high-energy emission from a gamma-ray burst (GRB). In this work, we present and analyze light curves of optical GRB flashes and afterglows from […]

Continue..

Gamma-Ray Bursts Observed by the Transiting Exoplanet Survey Satellite: Prompt Optical Counterparts and Afterglows of Swift-XRT Localized GRBs

Posted by dbos August 9, 2023MIT

Kavli Affiliate: Michael Fausnaugh | First 5 Authors: Rahul Jayaraman, Michael Fausnaugh, George R. Ricker, Roland Vanderspek, | Summary: Very few detections have been made of optical flashes contemporaneous with prompt high-energy emission from a gamma-ray burst (GRB). In this work, we present and analyze light curves of GRB-associated optical flashes and afterglows from the […]

Continue..

Two of a Kind: Comparing big and small black holes in binaries with gravitational waves

Posted by klaurent August 9, 2023August 22, 2023Chicago

Kavli Affiliate: Daniel E. Holz | First 5 Authors: Amanda M. Farah, Maya Fishbach, Daniel E. Holz, , | Summary: When modeling the population of merging binary black holes, analyses generally focus on characterizing the distribution of primary (i.e. more massive) black holes in the binary, while simplistic prescriptions are used for the distribution of […]

Continue..

Two of a Kind: Comparing big and small black holes in binaries with gravitational waves

Posted by August 9, 2023Chicago

Kavli Affiliate: Daniel E. Holz | First 5 Authors: Amanda M. Farah, Maya Fishbach, Daniel E. Holz, , | Summary: When modeling the population of merging binary black holes, analyses have generally focused on characterizing the distribution of primary (i.e. more massive) black holes in the binary, while simplistic prescriptions are used for the distribution […]

Continue..

Measurement of branching-fraction ratios and $CP$ asymmetries in $B^{pm} to D_{CPpm}K^{pm}$ decays at Belle and Belle II

Posted by klaurent August 9, 2023August 22, 2023Tokyo

Kavli Affiliate: T. Higuchi | First 5 Authors: The Belle, Belle II Collaborations, :, I. Adachi, L. Aggarwal | Summary: We report results from a study of $B^pm rightarrow DK^pm$ decays followed by $D$ decaying to $CP$~eigenstates, where $D$ indicates a $D^0$ or $bar{D}^{0}$ meson. These decays are sensitive to the Cabibbo-Kobayashi-Maskawa unitarity-triangle angle $phi_{3}$. […]

Continue..

Quantum Gravity Effects on Dark Matter and Gravitational Waves

Posted by klaurent August 7, 2023Tokyo

Kavli Affiliate: Masahito Yamazaki | First 5 Authors: Stephen F. King, Rishav Roshan, Xin Wang, Graham White, Masahito Yamazaki | Summary: We explore how quantum gravity effects, manifested through the breaking of discrete symmetry responsible for both Dark Matter and Domain Walls, can have observational effects through CMB observations and gravitational waves. To illustrate the […]

Continue..

Quantum Gravity Effects on Dark Matter and Gravitational Waves

Posted by dbos August 7, 2023Tokyo

Continue..

Learning a Graph Neural Network with Cross Modality Interaction for Image Fusion

Posted by klaurent August 7, 2023Peking

Kavli Affiliate: Jiansheng Chen | First 5 Authors: Jiawei Li, Jiansheng Chen, Jinyuan Liu, Huimin Ma, | Summary: Infrared and visible image fusion has gradually proved to be a vital fork in the field of multi-modality imaging technologies. In recent developments, researchers not only focus on the quality of fused images but also evaluate their […]

Continue..

Superradiant instabilities of massive bosons around exotic compact objects

Posted by klaurent August 6, 2023Peking

Kavli Affiliate: Lijing Shao | First 5 Authors: Lihang Zhou, Richard Brito, Zhan-Feng Mai, Lijing Shao, | Summary: Superradiantly unstable ultralight particles around a classical rotating black hole (BH) can form an exponentially growing bosonic cloud, which have been shown to provide an astrophysical probe to detect ultralight particles and constrain their mass. However, the […]

Continue..