activity
20222026
most citedAccretion Flow Morphology in Numerical Simulations of Black Holes from the ngEHT Model Library: The Impact of Radiation Physics

22 citations · 40 across the 18 of their papers we have counts for

collaborators

18 papers

astro-ph.SR2026

Summary of the First Year of the Space Weather Around Young Suns Program: 900 Hours of Low-frequency Radio and Optical Data Dedicated to Young, Solar-type Stars

Ivey Davis, Gregg Hallinan, Nikita Kosogorov +51

The Space Weather Around Young Suns (SWAYS) program was introduced in \citet{Davis2025} as a multi-wavelength monitoring program for studying the activity and particle environments…

astro-ph.IM2026

All-Sky Ultra-Narrowband Spectral Imaging with the OVRO-LWA: Technosignature Constraints and Axion-Like Particle Prospects

Nikita Kosogorov, Gregg Hallinan, Greg Hellbourg +46

We present an imaging-domain search for technosignatures at decametric wavelengths with the OVRO-LWA, targeting ultra-narrowband continuous-wave signals between 50 and 86 MHz. We i…

astro-ph.SR2026

Implementation of a Near-Realtime Recording and Reporting System of Solar Radio Bursts

Peijin Zhang, Anastasia Kuske, Bin Chen +48

Strong solar activity is often accompanied by a variety of radio bursts. These bursts are valuable diagnostics of coronal and heliospheric processes and also have potential applica…

astro-ph.IM2026

A Commensal Radio-Only Cosmic Ray Detector at the Owens Valley Radio Observatory Long Wavelength Array

Kathryn A. Plant, Andrew Romero-Wolf, Gregg Hallinan +46

The brief (10 nanoseconds) transient radio emission from cosmic ray air showers carries key information about the energy and mass composition of high energy cosmic rays, but anthro…

astro-ph.SR2026

Estimating Electron Densities in the Middle Solar Corona using White-light and Radio Observations

Surajit Mondal, Shaheda Begum Shaik, Russell A. Howard +45

The electron density of the solar corona is a fundamental parameter in many areas of solar physics. Traditionally, routine estimates of coronal density have relied exclusively on w…

astro-ph.HE2025

Searches for Prompt Low-Frequency Radio Counterparts to Gravitational Wave Event S250206dm with the OVRO-LWA Time Machine

Nikita Kosogorov, Gregg Hallinan, Casey Law +46

We report on a search for prompt, low-frequency radio emission from the gravitational-wave (GW) merger S250206dm using the Owens Valley Radio Observatory Long Wavelength Array (OVR…

astro-ph.SR2025

Enigmatic centi-SFU and mSFU nonthermal radio transients detected in the middle corona

Surajit Mondal, Bin Chen, Sijie Yu +43

Decades of solar coronal observations have provided substantial evidence for accelerated particles in the corona. In most cases, the location of particle acceleration can be roughl…

astro-ph.SR2025

Possible First Detection of Gyroresonance Emission from a Coronal Mass Ejection in the Middle Corona

Surajit Mondal, Bin Chen, Xingyao Chen +45

Routine measurements of the magnetic field of coronal mass ejections (CMEs) have been a key challenge in solar physics. Making such measurements is important both from a space weat…

astro-ph.HE2025★ 1 cited

Deep Synoptic Array Science: Searching for Long Duration Radio Transients with the DSA-110

Myles B. Sherman, Nikita Kosogorov, Casey Law +10

We describe the design and commissioning tests for the DSA-110 Not-So-Fast Radio Burst (NSFRB) search pipeline, a 1.4GHz image-plane single-pulse search sensitive to 134ms-160.8s r…

astro-ph.SR2025

Measuring the Magnetic Field of a Coronal Mass Ejection from Low to Middle Corona

Xingyao Chen, Bin Chen, Sijie Yu +44

A major challenge in understanding the initiation and evolution of coronal mass ejections (CMEs) is measuring the magnetic field of the magnetic flux ropes (MFRs) that drive CMEs.…

astro-ph.HE2025

Fast Luminous Extragalactic Transients in the VLA Sky Survey: Implications for the rates of Accretion-Induced Collapse Events, Fast Blue Optical Transients and Gamma Ray Burst Afterglows

Kritti Sharma, Vikram Ravi, Dillon Z. Dong +7

Radio wavelengths offer a unique window into high-energy astrophysical phenomena that may be obscured or too rapidly evolving to be captured at other wavelengths. Leveraging data f…

astro-ph.SR2025

Probing the Turbulent Corona and Heliosphere Using Radio Spectral Imaging Observation during the Solar Conjunction of Crab Nebula

Peijin Zhang, Surajit Mondal, Bin Chen +41

Measuring plasma parameters in the upper solar corona and inner heliosphere is challenging because of the region's weakly emissive nature and inaccessibility for most in situ obser…

astro-ph.HE2024

Preferential Occurrence of Fast Radio Bursts in Massive Star-Forming Galaxies

Kritti Sharma, Vikram Ravi, Liam Connor +24

Fast Radio Bursts (FRBs) are millisecond-duration events detected from beyond the Milky Way. FRB emission characteristics favor highly magnetized neutron stars, or magnetars, as th…

astro-ph.CO2024★ 7 cited

A gas-rich cosmic web revealed by the partitioning of the missing baryons

Liam Connor, Vikram Ravi, Kritti Sharma +17

Approximately half of the Universe's dark matter resides in collapsed halos; significantly less than half of the baryonic matter (protons and neutrons) remains confined to halos. A…

astro-ph.HE2024★ 1 cited

A Heavily Scattered Fast Radio Burst Is Viewed Through Multiple Galaxy Halos

Jakob T. Faber, Vikram Ravi, Stella Koch Ocker +16

We present a multi-wavelength study of the apparently non-repeating, heavily scattered fast radio burst, FRB 20221219A, detected by the Deep Synoptic Array 110 (DSA-110). The burst…

astro-ph.HE2024★ 9 cited

Searching for Magnetar Binaries Disrupted by Core-Collapse Supernovae

Myles B. Sherman, Vikram Ravi, Kareem El-Badry +5

Core-collapse Supernovae (CCSNe) are considered the primary magnetar formation channel, with 15 magnetars associated with supernova remnants (SNRs). A large fraction of these shoul…

astro-ph.IM2022

The ngEHT Analysis Challenges

Freek Roelofs, Lindy Blackburn, Greg Lindahl +15

The next-generation Event Horizon Telescope (ngEHT) will be a significant enhancement of the Event Horizon Telescope (EHT) array, with new antennas and instrumental upgra…

astro-ph.HE2022★ 22 cited

Accretion Flow Morphology in Numerical Simulations of Black Holes from the ngEHT Model Library: The Impact of Radiation Physics

Koushik Chatterjee, Andrew Chael, Paul Tiede +18

In the past few years, the Event Horizon Telescope (EHT) has provided the first-ever event horizon-scale images of the supermassive black holes (BHs) (M87*) and Sagittarius A (…