TOI-2119: A transiting brown dwarf orbiting an active M-dwarf from NASA’s TESS mission

Kavli Affiliate: Edward H. Morgan | First 5 Authors: Theron W. Carmichael, Jonathan M. Irwin, Felipe Murgas, Enric Pallé, Keivan G. Stassun | Summary: We report the discovery of TOI-2119b, a transiting brown dwarf (BD) that orbits and is completely eclipsed by an active M-dwarf star. Using light curve data from the Transiting Exoplanet Survey […]


Continue.. TOI-2119: A transiting brown dwarf orbiting an active M-dwarf from NASA’s TESS mission

TOI-2119: A transiting brown dwarf orbiting an active M-dwarf from NASA’s TESS mission

Kavli Affiliate: Edward H. Morgan | First 5 Authors: Theron W. Carmichael, Jonathan M. Irwin, Felipe Murgas, Enric Pallé, Keivan G. Stassun | Summary: We report the discovery of TOI-2119b, a transiting brown dwarf (BD) that orbits and is completely eclipsed by an active M-dwarf star. Using light curve data from the Transiting Exoplanet Survey […]


Continue.. TOI-2119: A transiting brown dwarf orbiting an active M-dwarf from NASA’s TESS mission

Mitigating Closed-model Adversarial Examples with Bayesian Neural Modeling for Enhanced End-to-End Speech Recognition

Kavli Affiliate: Zeeshan Ahmed | First 5 Authors: Chao-Han Huck Yang, Zeeshan Ahmed, Yile Gu, Joseph Szurley, Roger Ren | Summary: In this work, we aim to enhance the system robustness of end-to-end automatic speech recognition (ASR) against adversarially-noisy speech examples. We focus on a rigorous and empirical "closed-model adversarial robustness" setting (e.g., on-device or […]


Continue.. Mitigating Closed-model Adversarial Examples with Bayesian Neural Modeling for Enhanced End-to-End Speech Recognition

Massive Galaxy Mergers Have Distinctive Global HI Profiles

Kavli Affiliate: Jing Wang | First 5 Authors: Pei Zuo, Luis C. Ho, Jing Wang, Niankun Yu, Jinyi Shangguan | Summary: The global 21 cm HI emission-line profile of a galaxy encodes valuable information on the spatial distribution and kinematics of the neutral atomic gas. Galaxy interactions significantly influence the HI disk and imprint observable […]


Continue.. Massive Galaxy Mergers Have Distinctive Global HI Profiles

Observation and origin of non-thermal hard X-rays from Jupiter

Kavli Affiliate: Melania Nynka | First 5 Authors: Kaya Mori, Charles Hailey, Gabriel Bridges, Shifra Mandel, Amani Garvin | Summary: Electrons accelerated on Earth by a rich variety of wave scattering or stochastic processes generate hard non-thermal X-ray bremsstrahlung up to >~ 1 MeV and power Earth’s various types of aurorae. Although Jupiter’s magnetic field […]


Continue.. Observation and origin of non-thermal hard X-rays from Jupiter

Observation and origin of non-thermal hard X-rays from Jupiter

Kavli Affiliate: Melania Nynka | First 5 Authors: Kaya Mori, Charles Hailey, Gabriel Bridges, Shifra Mandel, Amani Garvin | Summary: Electrons accelerated on Earth by a rich variety of wave scattering or stochastic processes generate hard non-thermal X-ray bremsstrahlung up to >~ 1 MeV and power Earth’s various types of aurorae. Although Jupiter’s magnetic field […]


Continue.. Observation and origin of non-thermal hard X-rays from Jupiter

Reassessing the Evidence for Time Variability in the Atmosphere of the Exoplanet HAT-P-7 b

Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Maura Lally, Andrew Vanderburg, , , | Summary: We reassess the claimed detection of variability in the atmosphere of the hot Jupiter HAT-P-7 b, reported by Armstrong et al. (2016). Although astronomers expect hot Jupiters to have changing atmospheres, variability is challenging to detect. We looked for […]


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Modular Products and Modules for Finite Groups

Kavli Affiliate: Jeffrey A. Harvey | First 5 Authors: John F. R. Duncan, Jeffrey A. Harvey, Brandon C. Rayhaun, , | Summary: Motivated by the appearance of penumbral moonshine, and by evidence that penumbral moonshine enjoys an extensive relationship to generalized monstrous moonshine via infinite products, we establish a general construction in this work which […]


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Spectral sirens: cosmology from the full mass distribution of compact binaries

Kavli Affiliate: Daniel E. Holz | First 5 Authors: Jose María Ezquiaga, Daniel E. Holz, , , | Summary: We explore the use of the mass spectrum of neutron stars and black holes in gravitational-wave compact binary sources as a cosmological probe. These standard siren sources provide direct measurements of luminosity distance. In addition, features […]


Continue.. Spectral sirens: cosmology from the full mass distribution of compact binaries