Pith. sign in

REVIEW 2 cited by

Evidence for profile changes in PSR J1713+0747 using the uGMRT

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2107.04607 v2 pith:5OEGSU2W submitted 2021-07-09 astro-ph.HE

Jaikhomba Singha , Mayuresh P Surnis , Bhal Chandra Joshi , Pratik Tarafdar , Prerna Rana , Abhimanyu Susobhanan , Raghav Girgaonkar , Neel Kolhe
show 24 more authors
Nikita Agarwal Shantanu Desai T Prabu Adarsh Bathula Subhajit Dandapat Lankeswar Dey Shinnosuke Hisano Ryo Kato Divyansh Kharbanda Tomonosuke Kikunaga Piyush Marmat Sai Chaitanya Susarla Manjari Bagchi Neelam Dhanda Batra Arpita Choudhury A Gopakumar Yashwant Gupta M A Krishnakumar Yogesh Maan P K Manoharan K Nobleson Arul Pandian Dhruv Pathak Keitaro Takahashi
This is my paper · ORCID
classification astro-ph.HE
keywords profilepulsarchangeaprilbandbumpj1713timing
verification ladder T0 review T1 audit T2 compute T3 formal

Signed reviews

No signed human review yet.

0 comments
abstract

PSR J1713+0747 is one of the most precisely timed pulsars in the international pulsar timing array experiment. This pulsar showed an abrupt profile shape change between April 16, 2021 (MJD 59320) and April 17, 2021 (MJD 59321). In this paper, we report the results from multi-frequency observations of this pulsar carried out with the upgraded Giant Metrewave Radio Telescope (uGMRT) before and after the event. We demonstrate the profile change seen in Band 5 (1260 MHz - 1460 MHz) and Band 3 (300 MHz - 500 MHz). The timing analysis of this pulsar shows a disturbance accompanying this profile change followed by a recovery with a timescale of $\sim 159$ days. Our data suggest that a model with chromatic index as a free parameter is preferred over models with combinations of achromaticity with DM bump or scattering bump. We determine the frequency dependence to be $\sim\nu^{+1.34}$.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Profile Reconstruction from Temporally Stable Emission Components for Timing PSR J1713+0747

    astro-ph.HE 2026-08 conditional novelty 6.0 of 10

    Reconstructing PSR J1713+0747's pulse profile from the two temporally stable central Gaussian components yields a phase-connected timing solution across the 2021 profile-change event with 4.454 microseconds residuals.

  2. The SKAO Pulsar Timing Array

    astro-ph.IM 2026-07 accept novelty 3.5 of 10

    An SKAO PTA with ~174 millisecond pulsars can dominate nanohertz GW sensitivity within four years and enable continuous-wave detections plus anisotropy maps of the gravitational-wave background.

Pith tools