Pulsars, transients and relativistic astrophysics

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The rise and fall of the iron-strong nuclear transient PS16dtm

Astronomy & Astrophysics EDP Sciences 669 (2023) a140

Authors:

T Petrushevska, G Leloudas, D Ilić, M Bronikowski, P Charalampopoulos, GK Jaisawal, E Paraskeva, M Pursiainen, N Rakić, S Schulze, K Taggart, CK Wedderkopp, JP Anderson, T de Boer, K Chambers, TW Chen, G Damljanović, M Fraser, H Gao, A Gomboc, M Gromadzki, N Ihanec, K Maguire, B Marčun, TE Müller-Bravo, M Nicholl, F Onori, TM Reynolds, SJ Smartt, J Sollerman, KW Smith, T Wevers, Ł Wyrzykowski
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Black Hole Binary Formation in AGN Discs: From Isolation to Merger

(2022)

Authors:

Connar Rowan, Tjarda Boekholt, Bence Kocsis, Zoltán Haiman
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Bright X-ray pulsars: how outflows influence beaming, pulsations and pulse phase lags

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 518:4 (2022) 5457-5464

Authors:

Alexander A Mushtukov, Simon Portegies Zwart
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The MeerKAT Pulsar Timing Array: First Data Release

(2022)

Authors:

Matthew T Miles, Ryan M Shannon, Matthew Bailes, Daniel J Reardon, Michael J Keith, Andrew D Cameron, Aditya Parthasarathy, Mohsen Shamohammadi, Renee Spiewak, Willem van Straten, Sarah Buchner, Fernando Camilo, Marisa Geyer, Aris Karastergiou, Michael Kramer, Maciej Serylak, Gilles Theureau, Vivek Venkatraman Krishnan
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Flaring Masers and Pumping

Proceedings of the International Astronomical Union 18 (2022) 422-429

Authors:

MD Gray, S Etoka, B Pimpanuwat, AMS Richards, FJ Cowie

Abstract:

We briefly consider the history of maser variability, and of flaring variability specifically. We consider six proposed flare generation mechanisms, and model them computationally with codes that include saturation and 3-D structure (the last mechanism is modelled in 1-D). Fits to observational light curves have been made for some sources, and we suggest that a small number of observational parameters can diagnose the flare mechanism in many cases. The strongest flares arise from mechanisms that can increase the number density of inverted molecules in addition to by geometrical effects, and in events where unsaturated quiescent masers become saturated during the flare.
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