Pulsars, transients and relativistic astrophysics

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Discovery of optical and infrared accretion disc wind signatures in the black hole candidate MAXI J1348–630

Astronomy & Astrophysics EDP Sciences 664 (2022) a100

Authors:

G Panizo-Espinar, M Armas Padilla, T Muñoz-Darias, KII Koljonen, VA Cúneo, J Sánchez-Sierras, D Mata Sánchez, J Casares, J Corral-Santana, RP Fender, F Jiménez-Ibarra, G Ponti, D Steeghs, MAP Torres
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VLBI observations of GRB 201015A, a relatively faint GRB with a hint of very high-energy gamma-ray emission

Astronomy & Astrophysics EDP Sciences 664 (2022) a36

Authors:

S Giarratana, L Rhodes, B Marcote, R Fender, G Ghirlanda, M Giroletti, L Nava, JM Paredes, ME Ravasio, M Ribó, M Patel, J Rastinejad, G Schroeder, W Fong, BP Gompertz, AJ Levan, P O’Brien
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The black hole X-ray binary MAXI J1348$-$630 in quiescence

(2022)

Authors:

F Carotenuto, S Corbel, A Tzioumis
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The curious case of the "Heartworm" Nebula

Astrophysical Journal IOP Publishing 934:1 (2022) 78

Authors:

WD Cotton, F Camilo, W Becker, JJ Condon, J Forbrich, Ian Heywood, B Hugo, S Legodi, T Mauch, P Predehl, P Slane, MA Thompson

Abstract:

The curious Galactic features near G357.2−0.2 were observed with the MeerKAT radio interferometer array in the UHF and L bands (0.56–1.68 GHz). There are two possibly related features: a newly identified faint heart-shaped partial shell (the "heart"), and a series of previously known but now much better imaged narrow, curved features (the "worm") interior to the heart. Polarized emission suggests that much of the emission is nonthermal and is embedded in a dense plasma. The filaments of the worm appear to be magnetic structures powered by embedded knots that are sites of particle acceleration. The morphology of the worm broadly resembles some known pulsar wind nebulae (PWNe) but there is no known pulsar or PWN which could be powering this structure. We also present eROSITA observations of the field; no part of the nebula is detected in X-rays, but the current limits do not preclude the existence of a pulsar/PWN of intermediate spin-down luminosity.
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MIGHTEE: the nature of the radio-loud AGN population

ArXiv 2207.12379 (2022)

Authors:

IH Whittam, MJ Jarvis, CL Hale, M Prescott, LK Morabito, I Heywood, NJ Adams, J Afonso, Fangxia An, Y Ao, RA Bowler, JD Collier, RP Deane, J Delhaize, B Frank, M Glowacki, PW Hatfield, N Maddox, L Marchetti, AM Matthews, I Prandoni, S Randriamampandry, Z Randriamanakoto, DJB Smith, AR Taylor, NL Thomas, M Vaccari
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