activity
20132026
most citedFirst Results from HERA Phase I: Upper Limits on the Epoch of Reionization 21 cm Power Spectrum

200 citations · 1.5k across the 58 of their papers we have counts for

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Showing 2025Show all

10 papers · 1 filter

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.CO2025

First Results from HERA Phase II

The HERA Collaboration, Zuhra Abdurashidova, Tyrone Adams +83

We report the first upper limits on the power spectrum of 21-cm fluctuations during the Epoch of Reionization and Cosmic Dawn from Phase II of the Hydrogen Epoch of Reionization Ar…

astro-ph.CO2025★ 3 cited

Exploring One-point Statistics in HERA Phase I Data: Effects of Foregrounds and Systematics on Measuring One-Point Statistics

Honggeun Kim, Jacqueline N. Hewitt, Nicholas S. Kern +61

Measuring one-point statistics in redshifted 21 cm intensity maps offers an opportunity to explore non-Gaussian features of the early universe. We assess the impact of instrumental…

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.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.CO2025

Improved limits on the 21cm signal at z=6.5-7.0 with the MWA using Gaussian information

Cathryn M. Trott, C. D. Nunhokee, D. Null +29

We explore the properties of interferometric data from high-redshift 21~cm measurements using the Murchison Widefield Array. These data contain redshifted 21~cm signal, contaminati…

astro-ph.IM2025

Building SPARCS, an Ultraviolet Science CubeSat for Exoplanet Habitability Studies, Technology Advancements, and Mission Training

Evgenya L. Shkolnik, David R. Ardila, Logan Jensen +17

The Star-Planet Activity Research CubeSat (SPARCS) is a NASA-funded 6U-CubeSat mission designed to monitor ultraviolet (UV) radiation from low-mass stars. These stars' relatively h…

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.CO2025★ 2 cited

Limits on the 21 cm power spectrum at z=6.5-7.0 from MWA observations

C. D. Nunhokee, D. Null, C. M Trott +29

This paper presents the spherically-averaged 21 cm power spectrum derived from Epoch of Reionization (EoR) observations conducted with the Murchison Widefield Array (MWA). The anal…