178 citations · 571 across the 14 of their papers we have counts for
14 papers
NGC 1851A: Revealing an ongoing three-body encounter in a dense globular cluster
A. Dutta, P. C. C. Freire, T. Gautam +16
PSR J05144002A is a binary millisecond pulsar located in the globular cluster NGC 1851. The pulsar has a spin period of 4.99 ms, an orbital period of 18.8 days, and is in a very…
A pulsar in a binary with a compact object in the mass gap between neutron stars and black holes
Ewan D. Barr, Arunima Dutta, Paulo C. C. Freire +22
Among the compact objects observed in gravitational wave merger events a few have masses in the gap between the most massive neutron stars (NSs) and least massive black holes (BHs)…
A VLITE Search for Millisecond Pulsars in Globular Clusters: Discovery of a Pulsar in GLIMPSE-C01
Amaris V. McCarver, Thomas J. Maccarone, Scott M. Ransom +8
We present results from a search for pulsars in globular clusters, including the discovery of a new millisecond pulsar in the stellar cluster GLIMPSE-C01. We searched for low frequ…
Detection of the relativistic Shapiro delay in a highly inclined millisecond pulsar binary PSR J10124235
T. Gautam, P. C. C. Freire, J. Wu +5
PSR J10124235 is a 3.1ms pulsar in a wide binary (37.9 days) with a white dwarf companion. We detect, for the first time, a strong relativistic Shapiro delay signature in PSR J1…
A young white dwarf orbiting PSR J1835-3259B in the bulge globular cluster NGC 6652
J. Chen, M. Cadelano, C. Pallanca +8
We report on the discovery of the companion star to the millisecond pulsar PSR J1835-3259B in the Galactic globular cluster NGC 6652. Taking advantage of deep photometric archival…
Missing for 20 years: MeerKAT re-detects the elusive binary pulsar M30B
Vishnu Balakrishnan, Paulo Freire, Scott Ransom +14
PSR J21402311B is a 13-ms pulsar discovered in 2001 in a 7.8-hour Green Bank Telescope (GBT) observation of the core-collapsed globular cluster M30 and predicted to be in a high…
MeerKAT discovery of 13 new pulsars in Omega Centauri
W. Chen, P. C. C. Freire, A. Ridolfi +21
The most massive globular cluster in our Galaxy, Omega Centauri, is an interesting target for pulsar searches, because of its multiple stellar populations and the intriguing possib…
Relativistic effects in a mildly recycled pulsar binary: PSR J1952+2630
T. Gautam, P. C. C. Freire, A. Batrakov +4
We report the results of timing observations of PSR J1952+2630, a 20.7 ms pulsar in orbit with a massive white dwarf companion. With the increased timing baseline, we obtain improv…
Upgraded GMRT survey for pulsars in globular clusters. I: Discovery of a millisecond binary pulsar in NGC 6652
T. Gautam, A. Ridolfi, P. C. C. Freire +6
Globular clusters contain a unique pulsar population, with many exotic systems that can form only in their dense stellar environments. The leap in sensitivity of the upgraded Giant…
Four pulsar discoveries in NGC 6624 by TRAPUM using MeerKAT
F. Abbate, A. Ridolfi, E. D. Barr +19
We report 4 new pulsars discovered in the core-collapsed globular cluster (GC) NGC 6624 by the TRAPUM Large Survey Project with the MeerKAT telescope. All of the new pulsars found…
TRAPUM discovery of thirteen new pulsars in NGC 1851 using MeerKAT
A. Ridolfi, P. C. C. Freire, T. Gautam +27
We report the discovery of 13 new pulsars in the globular cluster NGC 1851 by the TRAPUM Large Survey Project using the MeerKAT radio telescope. The discoveries consist of six isol…
Eight new millisecond pulsars from the first MeerKAT globular cluster census
A. Ridolfi, T. Gautam, P. C. C. Freire +24
We have used the central 44 antennas of the new 64-dish MeerKAT radio telescope array to conduct a deep search for new pulsars in the core of nine globular clusters. This has led t…
The Relativistic Binary Programme on MeerKAT: Science objectives and first results
M. Kramer, I. H. Stairs, V. Venkatraman Krishnan +35
We describe the ongoing Relativistic Binary programme (RelBin), a part of the MeerTime large survey project with the MeerKAT radio telescope. RelBin is primarily focused on observa…
The MeerKAT Telescope as a Pulsar Facility: System verification and early science results from MeerTime
M. Bailes, A. Jameson, F. Abbate +72
We describe system verification tests and early science results from the pulsar processor (PTUSE) developed for the newly-commissioned 64-dish SARAO MeerKAT radio telescope in Sout…