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Radio observations of the ultra-long GRB 220627A reveal a hot cocoon supporting the blue supergiant progenitor scenario

ArXiv 2502.13435 (2025)

Authors:

James K Leung, Om Sharan Salafia, Cristiana Spingola, Giancarlo Ghirlanda, Stefano Giarratana, Marcello Giroletti, Cormac Reynolds, Ziteng Wang, Tao An, Adam Deller, Maria R Drout, David L Kaplan, Emil Lenc, Tara Murphy, Miguel Perez-Torres, Lauren Rhodes
Details from ArXiV

MIGHTEE: Exploring the relationship between spectral index, redshift and radio luminosity

Monthly Notices of the Royal Astronomical Society (2025) staf209

Authors:

Siddhant Pinjarkar, Martin J Hardcastle, Dharam V Lal, Daniel JB Smith, José Afonso, Davi Barbosa, Catherine L Hale, Matt J Jarvis, Sthabile Kolwa, Eric Murphy, Mattia Vaccari, Imogen H Whittam
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Contemporaneous optical-radio observations of a fast radio burst in a close galaxy pair

(2025)

Authors:

KY Hanmer, I Pastor-Marazuela, J Brink, D Malesani, BW Stappers, PJ Groot, AJ Cooper, N Tejos, DAH Buckley, ED Barr, MC Bezuidenhout, S Bloemen, M Caleb, LN Driessen, R Fender, F Jankowski, M Kramer, DLA Pieterse, KM Rajwade, J Tian, PM Vreeswijk, R Wijnands, PA Woudt
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Arcminute Microkelvin Imager observations at 15.5 GHz of multiple outbursts of Cygnus X-3 in 2024

ArXiv 2502.20409 (2025)

Authors:

DA Green, L Rhodes, J Bright
Details from ArXiV

Arcminute Microkelvin Imager Observations at 15.5 GHz of Multiple Outbursts of Cygnus X-3 in 2024

Research Notes of the American Astronomical Society American Astronomical Society 9:2 (2025) 35

Authors:

David A Green, Lauren Rhodes, Joe Bright

Abstract:

We report radio monitoring of Cygnus X-3 at 15.5 GHz during 2024 with the Arcminute Microkelvin Imager. Observations were made on 296 days throughout the year, and reveal five radio outbursts to multi-jansky levels, peaking in February, April, June, July and August. The brightest peak, with ≈16 Jy, was on June 27th.
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