The Host Galaxy (If Any) of the Little Red Dots

Kavli Affiliate: Luis C. Ho | First 5 Authors: Chang-Hao Chen, Luis C. Ho, Ruancun Li, Ming-Yang Zhuang, | Summary: We investigate the host galaxy properties of eight little red dots (LRDs) selected from the JWST UNCOVER survey, applying a new technique ({ttstring GalfitS}) to simultaneously fit the morphology and spectral energy distribution using multi-band […]


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On non-supersymmetric heterotic branes

Kavli Affiliate: Yuji Tachikawa | First 5 Authors: Justin Kaidi, Yuji Tachikawa, Kazuya Yonekura, , | Summary: A uniform construction of non-supersymmetric 0-, 4-, 6- and 7-branes in heterotic string theory was announced and outlined in our letter cite{Kaidi:2023tqo}. In this full paper, we provide details on their properties. Among other things, we discuss the […]


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ALMA Spectral Survey of An eruptive Young star, V883 Ori (ASSAY): II. Freshly Sublimated Complex Organic Molecules (COMs) in the Keplerian Disk

Kavli Affiliate: Gregory J. Herczeg | First 5 Authors: Jae-Hong Jeong, Jeong-Eun Lee, Seonjae Lee, Giseon Baek, Ji-Hyun Kang | Summary: We present an investigation of Complex Organic Molecules (COMs) in the spatially resolved Keplerian disk around V883 Ori, an eruptive young star, based on a spectral survey carried out with ALMA in Band 6 […]


Continue.. ALMA Spectral Survey of An eruptive Young star, V883 Ori (ASSAY): II. Freshly Sublimated Complex Organic Molecules (COMs) in the Keplerian Disk

Detection of Thermal Emission at Millimeter Wavelengths from Low-Earth Orbit Satellites

Kavli Affiliate: Chao-Lin Kuo | First 5 Authors: A. Foster, A. Chokshi, P. A. R. Ade, Z. Ahmed, E. Anderes | Summary: The detection of satellite thermal emission at millimeter wavelengths is presented using data from the 3rd-Generation receiver on the South Pole Telescope (SPT-3G). This represents the first reported detection of thermal emission from […]


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Detection of Thermal Emission at Millimeter Wavelengths from Low-Earth Orbit Satellites

Kavli Affiliate: Chao-Lin Kuo | First 5 Authors: A. Foster, A. Chokshi, A. J. Anderson, B. Ansarinejad, M. Archipley | Summary: The detection of satellite thermal emission at millimeter wavelengths is presented using data from the 3rd-Generation receiver on the South Pole Telescope (SPT-3G). This represents the first reported detection of thermal emission from artificial […]


Continue.. Detection of Thermal Emission at Millimeter Wavelengths from Low-Earth Orbit Satellites

Detection of Thermal Emission at Millimeter Wavelengths from Low-Earth Orbit Satellites

Kavli Affiliate: Chao-Lin Kuo | First 5 Authors: A. Foster, A. Chokshi, A. J. Anderson, B. Ansarinejad, M. Archipley | Summary: The detection of satellite thermal emission at millimeter wavelengths is presented using data from the 3rd-Generation receiver on the South Pole Telescope (SPT-3G). This represents the first reported detection of thermal emission from artificial […]


Continue.. Detection of Thermal Emission at Millimeter Wavelengths from Low-Earth Orbit Satellites

Morphology of 32 Repeating Fast Radio Burst Sources at Microsecond Time Scales with CHIME/FRB

Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Alice P. Curtin, Ketan R. Sand, Ziggy Pleunis, Naman Jain, Victoria Kaspi | Summary: The Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst (CHIME/FRB) project has discovered the most repeating fast radio burst (FRB) sources of any telescope. However, most of the physical conclusions derived from […]


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Effects of ultra-fast outflows on X-ray time lags in AGN

Kavli Affiliate: Erin Kara | First 5 Authors: Yerong Xu, Ciro Pinto, Erin Kara, Stefano Bianchi, William Alston | Summary: The time lag between soft and hard X-ray photons has been observed in many active galactic nuclei (AGN) and can reveal the accretion process and geometry around supermassive black holes (SMBHs). High-frequency Fe K and […]


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Analysis of Multi-epoch JWST Images of $sim 300$ Little Red Dots: Tentative Detection of Variability in a Minority of Sources

Kavli Affiliate: Linhua Jiang | First 5 Authors: Zijian Zhang, Linhua Jiang, Weiyang Liu, Luis C. Ho, | Summary: James Webb Space Telescope (JWST) has revealed a population of red and compact sources at $z gtrsim 5$ known as "Little Red Dots" (LRDs) that are likely active galactic nuclei (AGNs). Here we present a comprehensive […]


Continue.. Analysis of Multi-epoch JWST Images of $sim 300$ Little Red Dots: Tentative Detection of Variability in a Minority of Sources

Buchdahl bound, photon ring, ISCO and radial acceleration in Einstein-æther theory

Kavli Affiliate: Anthony Lasenby | First 5 Authors: Yi-Hsiung Hsu, Anthony Lasenby, Will Barker, Amel Durakovic, Michael Hobson | Summary: Spherically symmetric Einstein-{ae}ther (E{AE}) theory with a Maxwell-like kinetic term is revisited. We consider a general choice of the metric and the ae{}ther field, finding that:~(i) there is a gauge freedom allowing one always to […]


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