64 citations · 220 across the 15 of their papers we have counts for
10 papers · 1 filter
High Frequency Wideband Study of FRB 20240114A with the Allen Telescope Array
Param Joshi, Vishal Gajjar, Joel Earwicker +14
We present a high-frequency, wideband observing campaign of the hyperactive repeating fast radio burst FRB 20240114A with the Allen Telescope Array. Between 27 January and 29 Octob…
On the Deepest Search for Galactic Center Pulsars and an Examination of an Intriguing Millisecond Pulsar Candidate
Karen I. Perez, Vishal Gajjar, Slavko Bogdanov +6
We report results of one of the most sensitive pulsar surveys to date targeting the innermost region of the Galactic Center (GC) using the Robert C. Byrd Green Bank Telescope (GBT)…
Noisy Timing Behavior is a Feature of Central Compact Object Pulsars
K. I. Perez, E. V. Gotthelf, J. P. Halpern
We present a timing study of the three known central compact object (CCO) pulsars, isolated cooling neutron stars in supernova remnants, using Chandra, XMM-Newton and NICER observa…
The First High Frequency Technosignature Search Survey with the Sardinia Radio Telescope
Lorenzo Manunza, Alice Vendrame, Luca Pizzuto +30
The quest for radio signals from technologically-advanced extraterrestrial intelligence has traditionally concentrated on the vicinity of 1.4 GHz. In this paper, we extend the sear…
Green Bank Telescope Discovery of the Redback Binary Millisecond Pulsar PSR J0212+5321
Karen I. Perez, Slavko Bogdanov, Jules P. Halpern +1
We report the discovery of a 2.11 ms binary millisecond pulsar during a targeted search of the redback optical candidate coincident with the -ray source 3FGL J0212.5+5320 using…
Luminous Optical and X-ray Flaring of the Putative Redback Millisecond Pulsar 1FGL J0523.52529
Jules P. Halpern, Karen I. Perez, Slavko Bogdanov
Several redback and black widow millisecond pulsar binaries have episodes of flaring in X-rays and optical. We initially detected such behavior from the Fermi selected redback cand…
Searching for broadband pulsed beacons from 1883 stars using neural networks
Vishal Gajjar, Dominic LeDuc, Jiani Chen +19
The search for extraterrestrial intelligence at radio frequencies has largely been focused on continuous-wave narrowband signals. We demonstrate that broadband pulsed beacons are e…
4-8 GHz Fourier-domain Searches for Galactic Center Pulsars
Akshay Suresh, James M. Cordes, Shami Chatterjee +6
The Galactic Center (GC), with its high density of massive stars, is a promising target for radio transient searches. In particular, the discovery and timing of a pulsar orbiting t…
Spectro-temporal Emission from the Galactic Center Magnetar
Akshay Suresh, James M. Cordes, Shami Chatterjee +4
Radio magnetars are exotic sources noted for their diverse spectro-temporal phenomenology and pulse profile variations over weeks to months. Unusual for radio magnetars, the Galact…
The Breakthrough Listen Search For Intelligent Life Near the Galactic Center I
Vishal Gajjar, Karen I. Perez, Andrew P. V. Siemion +23
A line-of-sight towards the Galactic Center (GC) offers the largest number of potentially habitable systems of any direction in the sky. The Breakthrough Listen program is undertak…