64 citations · 220 across the 15 of their papers we have counts for
16 papers
Towards a GPU-Accelerated Real-Time Imaging Pipeline for SETI at the Allen Telescope Array
Karen I. Perez, Joe S. Bright, Vishal Gajjar +1
Traditional technosignature and transient searches commonly operate on beamformed time--frequency products. Interferometric imaging adds spatial context and allows time-domain sear…
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)…
A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array
Sofia Z. Sheikh, Valeria Garcia Lopez, Isabel Gerrard +12
In 2025 July, the third-ever interstellar object, 3I/ATLAS, was discovered on its ingress into the Solar System. Similar to the NASA Voyager missions sent in 1977, science probes b…
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…
A radio technosignature search towards Proxima Centauri resulting in a signal-of-interest
Shane Smith, Danny C Price, Sofia Z Sheikh +15
The detection of life beyond Earth is an ongoing scientific endeavour, with profound implications. One approach, known as the search for extraterrestrial intelligence (SETI), seeks…
Analysis of the Breakthrough Listen signal of interest blc1 with a technosignature verification framework
Sofia Z. Sheikh, Shane Smith, Danny C. Price +15
The aim of the search for extraterrestrial intelligence (SETI) is to find technologically-capable life beyond Earth through their technosignatures. On 2019 April 29, the Breakthrou…
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…
The Breakthrough Listen Search for Intelligent Life: Searching for Technosignatures in Observations of TESS Targets of Interest
Raffy Traas, Steve Croft, Vishal Gajjar +10
Exoplanetary systems are prime targets for the Search for Extraterrestrial Intelligence (SETI). With the recent uptick in the identification of candidate and confirmed exoplanets t…
Breakthrough Listen Search for Technosignatures Towards the Kepler-160 System
Karen Perez, Bryan Brzycki, Vishal Gajjar +10
We have conducted a search for artificial radio emission associated with the Kepler-160 system following the report of the discovery of the Earth-like planet candidate KOI-456.04 o…