activity
20232026
most citedAn emission state switching radio transient with a 54 minute period

60 citations · 137 across the 24 of their papers we have counts for

collaborators

25 papers

astro-ph.HE2026

Evidence for the binary nature of the long-period radio transient ASKAP/DART J1832-0911

Csanád Horváth, Natasha Hurley-Walker, Ziteng Wang +2

Long-period transients are a class of periodic pulsed radio source repeating on the minute to hour timescale. Recently, an increasing number of them are being identified as binary…

astro-ph.IM2026

VASTER: The ASKAP real-time fast-imaging pipeline -- overview and discovery of two long period transients

Yuanming Wang, Dougal Dobie, Tara Murphy +22

Recent developments in widefield radio telescopes have enabled searches of a new region of parameter space in the time domain: timescales of seconds to minutes, that have been over…

astro-ph.IM2026

Rapid Response Triggering for Radio Transients with the SKA Observatory

G. E. Anderson, S. I. Chastain, A. P. Curtin +10

Rapid-response triggering is when a telescope is able to automatically respond to an external or internal astronomical transient alert, causing it to rapidly repoint at that positi…

astro-ph.HE2026

Supernova remnants in the new radio astronomy era

A. Ingallinera, M. Arias, G. Castelletti +25

Supernova remnants (SNRs) are what is left after stellar explosions, when the stellar ejecta, the explosion shock and the circumstellar medium interact. Despite being among the fir…

astro-ph.HE2026

Long-Period Transients as a new frontier in time-domain astronomy

Manisha Caleb, Dougal Dobie, Natasha Hurley-Walker +8

Long-period radio transients (LPTs) are relatively new astrophysical objects occupying the observational gap between canonical pulsars and slowly varying radio variables. They emit…

astro-ph.SR2026

White dwarf + M dwarf Detached Binaries in Long Period Radio Transients: Observed Binary Parameters, Evolution, and Population Constraints

Antonio C. Rodriguez, Kareem El-Badry, Iris de Ruiter +4

Long period radio transients (LPTs) are the slowest radio-pulsing sources ever found, with the current population spanning periods of seven minutes to over six hours. Two of the th…

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.HE2026

Long Period Transients (LPTs): a comprehensive review

Nanda Rea, Natasha Hurley-Walker, Manisha Caleb

Long Period Transients (LPTs) are a recently identified class of sources characterized by periodic radio bursts lasting seconds to minutes, with flux densities that might reach sev…

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.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

Discovery of Two Highly Scattered Pulsars from Image-Based Circular Polarization Searches with the Australian SKA Pathfinder

Rahul Sengar, David L. Kaplan, Emil Lenc +6

We report the discovery and timing of two pulsars from a sample of four circularly polarized sources identified in radio continuum images taken as part of the Australian SKA Pathfi…

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

ASKAP J144834-685644: a newly discovered long period radio transient detected from radio to X-rays

Akash Anumarlapudi, David L. Kaplan, Nanda Rea +13

Long-period radio transients (LPTs) are an emerging group of radio transients that show periodic polarized radio bursts with periods varying from a few minutes to a few hours. Fewe…

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★ 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.GA2024★ 7 cited

Comprehensive view on a radio-loud QSO: from the radio to the optical/NIR to the X-ray band

Luca Ighina, Alessandro Caccianiga, Alberto Moretti +9

We present a multi-wavelength analysis, from the radio to the X-ray band, of the redshift VIK J231831 radio-loud (RL) quasi stellar object (QSO), one of the most distan…

astro-ph.HE2024★ 5 cited

G321.3-3.9: A new supernova remnant observed with multi-band radio data and in the SRG/eROSITA All-Sky Surveys

S. Mantovanini, W. Becker, A. Khokhriakova +3

G321.3-3.9 was first identified as a partial shell at radio frequencies a few decades ago. Although it continued to be observed, no additional studies were undertaken until recentl…