A Case for a Binary Black Hole System Revealed via Quasi-Periodic Outflows

Kavli Affiliate: Erin Kara | First 5 Authors: Dheeraj R. Pasham, Francesco Tombesi, Petra Sukova, Michal Zajacek, Suvendu Rakshit | Summary: Binaries containing a compact object orbiting a supermassive black hole are thought to be precursors of gravitational wave events, but their identification has been extremely challenging. Here, we report quasi-periodic variability in X-ray absorption […]


Continue.. A Case for a Binary Black Hole System Revealed via Quasi-Periodic Outflows

A Case for a Binary Black Hole System Revealed via Quasi-Periodic Outflows

Kavli Affiliate: Erin Kara | First 5 Authors: Dheeraj R. Pasham, Francesco Tombesi, Petra Sukova, Michal Zajacek, Suvendu Rakshit | Summary: Binaries containing a compact object orbiting a supermassive black hole are thought to be precursors of gravitational wave events, but their identification has been extremely challenging. Here, we report quasi-periodic variability in X-ray absorption […]


Continue.. A Case for a Binary Black Hole System Revealed via Quasi-Periodic Outflows

A Case for a Binary Black Hole System Revealed via Quasi-Periodic Outflows

Kavli Affiliate: Ronald Remillard | First 5 Authors: Dheeraj R. Pasham, Francesco Tombesi, Petra Sukova, Michal Zajacek, Suvendu Rakshit | Summary: Binaries containing a compact object orbiting a supermassive black hole are thought to be precursors of gravitational wave events, but their identification has been extremely challenging. Here, we report quasi-periodic variability in X-ray absorption […]


Continue.. A Case for a Binary Black Hole System Revealed via Quasi-Periodic Outflows

The Simons Observatory: Development and Optical Evaluation of Achromatic Half-Wave Plates

Kavli Affiliate: Tomotake Matsumura | First 5 Authors: Junna Sugiyama, Tomoki Terasaki, Kana Sakaguri, Bryce Bixler, Yuki Sakurai | Summary: The Simons Observatory (SO) experiment is a cosmic microwave background (CMB) experiment located in the Atacama Desert, Chile. The SO’ s small aperture telescopes (SATs) consist of three telescopes designed for precise CMB polarimetry at […]


Continue.. The Simons Observatory: Development and Optical Evaluation of Achromatic Half-Wave Plates

The Simons Observatory: Development and Optical Evaluation of Achromatic Half-Wave Plates

Kavli Affiliate: Tomotake Matsumura | First 5 Authors: Junna Sugiyama, Tomoki Terasaki, Kana Sakaguri, Bryce Bixler, Yuki Sakurai | Summary: The Simons Observatory (SO) experiment is a cosmic microwave background (CMB) experiment located in the Atacama Desert, Chile. The SO’ s small aperture telescopes (SATs) consist of three telescopes designed for precise CMB polarimetry at […]


Continue.. The Simons Observatory: Development and Optical Evaluation of Achromatic Half-Wave Plates

Superconducting qubit readout enhanced by path signature

Kavli Affiliate: Irfan Siddiqi | First 5 Authors: Shuxiang Cao, Zhen Shao, Jian-Qing Zheng, Mohammed Alghadeer, Simone D Fasciati | Summary: Quantum non-demolition measurement plays an essential role in quantum technology, crucial for quantum error correction, metrology, and sensing. Conventionally, the qubit state is classified from the raw or integrated time-domain measurement record. Here, we […]


Continue.. Superconducting qubit readout enhanced by path signature

Image deconvolution and PSF reconstruction with STARRED: a wavelet-based two-channel method optimized for light-curve extraction

Kavli Affiliate: Philip J. Marshall | First 5 Authors: Martin Millon, Kevin Michalewicz, Frédéric Dux, Frédéric Courbin, Philip J. Marshall | Summary: We present STARRED, a Point Spread Function (PSF) reconstruction, two-channel deconvolution, and light curve extraction method designed for high-precision photometric measurements in imaging time series. An improved resolution of the data is targeted […]


Continue.. Image deconvolution and PSF reconstruction with STARRED: a wavelet-based two-channel method optimized for light-curve extraction

Testing EMRI models for Quasi-Periodic Eruptions with 3.5 years of monitoring eRO-QPE1

Kavli Affiliate: Erin Kara | First 5 Authors: Joheen Chakraborty, Riccardo Arcodia, Erin Kara, Giovanni Miniutti, Margherita Giustini | Summary: Quasi-Periodic Eruptions (QPEs) are luminous X-ray outbursts recurring on hour timescales, observed from the nuclei of a growing handful of nearby low-mass galaxies. Their physical origin is still debated, and usually modeled as (a) accretion […]


Continue.. Testing EMRI models for Quasi-Periodic Eruptions with 3.5 years of monitoring eRO-QPE1

Testing EMRI models for Quasi-Periodic Eruptions with 3.5 years of monitoring eRO-QPE1

Kavli Affiliate: Erin Kara | First 5 Authors: Joheen Chakraborty, Riccardo Arcodia, Erin Kara, Giovanni Miniutti, Margherita Giustini | Summary: Quasi-Periodic Eruptions (QPEs) are luminous X-ray outbursts recurring on hour timescales, observed from the nuclei of a growing handful of nearby low-mass galaxies. Their physical origin is still debated, and usually modeled as (a) accretion […]


Continue.. Testing EMRI models for Quasi-Periodic Eruptions with 3.5 years of monitoring eRO-QPE1

Constraining neutrino-DM interactions with Milky Way dwarf spheroidals and supernova neutrinos

Kavli Affiliate: Satoshi Shirai | First 5 Authors: Sean Heston, Shunsaku Horiuchi, Satoshi Shirai, , | Summary: We constrain the neutrino-dark matter cross section using properties of the dark matter density profiles of Milky Way dwarf spheroidal galaxies. The constraint arises from core-collapse supernova neutrinos scattering on dark matter as a form of energy injection, […]


Continue.. Constraining neutrino-DM interactions with Milky Way dwarf spheroidals and supernova neutrinos