activity
20242026
most citedAn emission state switching radio transient with a 54 minute period

60 citations · 151 across the 16 of their papers we have counts for

collaborators

18 papers

astro-ph.HE2026

A fast radio burst from a non-targeted low-frequency survey

Cristian Di Pietrantonio, Marcin Sokolowski, Clancy W. James +13

Fast radio bursts (FRBs) are bright, millisecond-duration transient radio signals of extragalactic origin with unknown source and emission mechanisms. While several thousand FRBs h…

astro-ph.HE2026

Discovery of a 36-minute long-period transient ASKAP J142431.2-612611

Joshua Pritchard, Tara Murphy, Dougal Dobie +13

We report the discovery of a new long-period radio transient, ASKAP J142431.2-612611, with a 36 minute period, identified in the Australian SKA Pathfinder Evolutionary Map of the U…

astro-ph.HE2026

Detection of Cyclotron Absorption in the Radio Emission of GPM 1839-10

Yunpeng Men, Ewan Barr, Yuanhong Qu +8

GPM 1839-10 is an intriguing long-period radio transient (LPT), distinguished by its activity spanning at least three decades and its highly unusual emission characteristics. These…

astro-ph.HE2025

Discovery of the redback millisecond pulsar PSR J1728-4608 with ASKAP

F. Petrou, Y. Wang, N. Hurley-Walker +10

We present the discovery of PSR J1728-4608, a new redback spider pulsar identified in images from the Australian SKA Pathfinder telescope. PSR J1728-4608 is a millisecond pulsar wi…

astro-ph.HE2025

The ONs and OFFs of Pulsar Radio Emission: Characterizing the Nulling Phenomenon

Garvit Grover, N. D. Ramesh Bhat, Samuel J. McSweeney +4

Radio emission from pulsars is known to exhibit a diverse range of emission phenomena, among which nulling, where the emission becomes temporarily undetectable, is an intriguing on…

astro-ph.IM2025★ 3 cited

A long period transient search method for the Murchison Widefield Array

Csanád Horváth, Natasha Hurley-Walker, Samuel J. McSweeney +2

We present an automated search method for radio transients on the minute timescale focused on the emerging long period transients (LPTs) in image-plane radio data. The method is tu…

astro-ph.HE2025★ 2 cited

Investigating four new candidate redback pulsars discovered in the image plane

Flora Petrou, Natasha Hurley-Walker, Sam McSweeney +12

This paper reports the discovery and follow-up of four candidate redback spider pulsars: GPM J1723-33, GPM J1734-28, GPM J1752-30 and GPM J1815-14, discovered with the Murchison Wi…

astro-ph.HE2025

A new long period radio transient: Discovery of pulses repeating every 1.16 hours from ASKAP J175534.9-252749.1

Samuel J. McSweeney, Natasha Hurley-Walker, Csanád Horváth +7

We report the discovery of several new pulses from the source ASKAP J175534.9-252749.1 (J1755-2527), originally identified from a single 2-min long pulse, confirming it as a long p…

astro-ph.HE2025★ 3 cited

Einstein Probe discovery of the short period intermediate polar EP J115415.8-501810

Y. Xiao, M. Ge, N. Rea +21

The X-ray transient source EP240309a/EP\,J115415.8501810 was first detected by the Wide-Field X-ray Telescope (WXT) on board Einstein Probe (EP) during the commissioning phase.…

astro-ph.HE2025★ 1 cited

A binary model of long period radio transients and white dwarf pulsars

Csanád Horváth, Nanda Rea, Natasha Hurley-Walker +3

Long-period radio transients (LPTs) represent a recently uncovered class of Galactic radio sources exhibiting minute-to-hour periodicities and highly polarised pulses of second-to-…

astro-ph.HE2025★ 1 cited

100,000 Crab giant pulses at 215 MHz detected with an SKA-Low prototype station

M. Sokolowski, P. Kumar, S. Dhavali +4

We report detection and analysis of the largest low-frequency (200 - 231.25 MHz) sample of Crab giant pulses (GPs) reported in the literature. In total about 95000 GPs were detecte…

astro-ph.HE2025

Discovery of an RRAT-like pulsar via its single pulses in an MWA imaging survey

Samuel J. McSweeney, Jared Moseley, Natasha Hurley-Walker +5

We report the discovery of PSR J00315726 in the GaLactic and Extragalactic All-sky MWA eXtended imaging survey at a Galactic latitude of . The pulsar exhibi…

astro-ph.HE2025★ 18 cited

A highly magnetized long-period radio transient exhibiting unusual emission features

Yunpeng Men, Sam McSweeney, Natasha Hurley-Walker +2

Long-period radio transients are a new class of astrophysical objects that exhibit periodic radio emission on timescales of tens of minutes. Their true nature remains unknown; poss…

astro-ph.HE2025★ 34 cited

The emission of interpulses by a 6.45-hour period coherent radio transient

Y. W. J. Lee, M. Caleb, Tara Murphy +29

Long-period radio transients are a novel class of astronomical objects characterised by prolonged periods ranging from 18 minutes to 54 minutes. They exhibit highly polarised, cohe…

astro-ph.HE2024★ 20 cited

Detection of X-ray Emission from a Bright Long-Period Radio Transient

Ziteng Wang, Nanda Rea, Tong Bao +46

Recently, a class of long-period radio transients (LPTs) has been discovered, exhibiting emission on timescales thousands of times longer than radio pulsars. Several models had bee…

astro-ph.SR2024★ 1 cited

A 2.9-hour periodic radio transient with an optical counterpart

N. Hurley-Walker, S. J. McSweeney, A. Bahramian +12

We present a long-period radio transient (GLEAM-X J0704-37) discovered to have an optical counterpart, consistent with a cool main sequence star of spectral type M3. The radio puls…

astro-ph.HE2024★ 60 cited

An emission state switching radio transient with a 54 minute period

M. Caleb, E. Lenc, D. L. Kaplan +19

Long-period radio transients are an emerging class of extreme astrophysical events of which only three are known. These objects emit highly polarised, coherent pulses of typically…

astro-ph.HE2024★ 8 cited

Discovery and follow-up of a quasiperiodically nulling and sub-pulse drifting pulsar with the Murchison Widefield Array

G. Grover, N. D. R. Bhat, S. McSweeney +4

The phenomenon of pulsar nulling, where pulsars temporarily and stochastically cease their radio emission, is thought to be indicative of a `dying' pulsar, where radio emission cea…