Repeating transients in galactic nuclei: confronting observations with theory

Kavli Affiliate: Dheeraj R. Pasham | First 5 Authors: Petra Suková, Francesco Tombesi, Dheeraj R. Pasham, Michal Zajaček, Thomas Wevers | Summary: In the last few years, a mysterious new class of astrophysical objects has been uncovered. These are spatially coincident with the nuclei of external galaxies and show X-ray variations that repeat on timescales […]


Continue.. Repeating transients in galactic nuclei: confronting observations with theory

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 […]


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

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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Connecting dust and outflows in AGN: the intriguing case of NGC 6860

Kavli Affiliate: Norbert Schulz | First 5 Authors: Ioanna Psaradaki, Missagh Mehdipour, Daniele Rogantini, Elisa Costantini, Norbert Schulz | Summary: Cosmic dust plays a crucial role in the evolution of galaxies, significantly influencing star formation and the interstellar medium. However, in active galactic nuclei (AGN), the role and origin of dust remain poorly understood. High-resolution […]


Continue.. Connecting dust and outflows in AGN: the intriguing case of NGC 6860

Connecting dust and outflows in AGN: the intriguing case of NGC 6860

Kavli Affiliate: Norbert Schulz | First 5 Authors: Ioanna Psaradaki, Missagh Mehdipour, Daniele Rogantini, Elisa Costantini, Norbert Schulz | Summary: Cosmic dust plays a crucial role in the evolution of galaxies, significantly influencing star formation and the interstellar medium. However, in active galactic nuclei (AGN), the role and origin of dust remain poorly understood. High-resolution […]


Continue.. Connecting dust and outflows in AGN: the intriguing case of NGC 6860

X-ray and Radio Campaign of the Z-source GX 340+0 II: the X-ray polarization in the normal branch

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Yash Bhargava, Thomas D. Russell, Mason Ng, Arvind Balasubramanian, Liang Zhang | Summary: We present the first X-ray polarization measurement of the neutron star low-mass X-ray binary and Z-source, GX 340$+$0, in the normal branch (NB) using a 200 ks observation with the Imaging X-ray Polarimetric […]


Continue.. X-ray and Radio Campaign of the Z-source GX 340+0 II: the X-ray polarization in the normal branch

X-ray and Radio Campaign of the Z-source GX 340+0 II: the X-ray polarization in the normal branch

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Yash Bhargava, Thomas D. Russell, Mason Ng, Arvind Balasubramanian, Liang Zhang | Summary: We present the first X-ray polarization measurement of the neutron star low-mass X-ray binary and Z-source, GX 340$+$0, in the normal branch (NB) using a 200 ks observation with the Imaging X-ray Polarimetric […]


Continue.. X-ray and Radio Campaign of the Z-source GX 340+0 II: the X-ray polarization in the normal branch

X-ray and Radio Campaign of the Z-source GX 340+0 II: the X-ray polarization in the normal branch

Kavli Affiliate: Herman L. Marshall | First 5 Authors: Yash Bhargava, Thomas D. Russell, Mason Ng, Arvind Balasubramanian, Liang Zhang | Summary: We present the first X-ray polarization measurement of the neutron star low-mass X-ray binary and Z-source, GX 340$+$0, in the normal branch (NB) using a 200 ks observation with the Imaging X-ray Polarimetric […]


Continue.. X-ray and Radio Campaign of the Z-source GX 340+0 II: the X-ray polarization in the normal branch

Alive and Strongly Kicking: Stable X-ray Quasi-Periodic Eruptions from eRO-QPE2 over 3.5 Years

Kavli Affiliate: Dheeraj Pasham | First 5 Authors: Dheeraj Pasham, Shubham Kejriwal, Eric Coughlin, Vojtěch Witzany, Alvin J. K. Chua | Summary: Quasi-periodic eruptions (QPEs) are recurring bursts of soft X-rays from the nuclei of galaxies. Their physical origin is currently a subject of debate, with models typically invoking an orbiter around a massive black […]


Continue.. Alive and Strongly Kicking: Stable X-ray Quasi-Periodic Eruptions from eRO-QPE2 over 3.5 Years

frb-voe: A Real-time Virtual Observatory Event Alert Service for Fast Radio Bursts

Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Thomas C. Abbott, Andrew V. Zwaniga, Charanjot Brar, Victoria M. Kaspi, Emily Petroff | Summary: We present frb-voe, a publicly available software package that enables radio observatories to broadcast fast radio burst (FRB) alerts to subscribers through low-latency virtual observatory events (VOEvents). We describe a use-case […]


Continue.. frb-voe: A Real-time Virtual Observatory Event Alert Service for Fast Radio Bursts