Publications (21)
The Breakthrough Listen Search for Intelligent Life: Public Data, Formats, Reduction and Archiving
Matthew Lebofsky, Steve Croft, Andrew P. V. Siemion +22
Breakthrough Listen is the most comprehensive and sensitive search for extraterrestrial intelligence (SETI) to date, employing a collection of international observational facilitie…
Opportunities to Search for Extra-Terrestrial Intelligence with the Five-hundred-meter Aperture Spherical radio Telescope
Di Li, Vishal Gajjar, Pei Wang +31
The discovery of ubiquitous habitable extrasolar planets, combined with revolutionary advances in instrumentation and observational capabilities, has ushered in a renaissance in th…
The Breakthrough Listen Search for Intelligent Life: MeerKAT Target Selection
Daniel Czech, Howard Isaacson, Logan Pearce +18
New radio telescope arrays offer unique opportunities for large-scale commensal SETI surveys. Ethernet-based architectures are allowing multiple users to access telescope data simu…
Re-Analysis of Breakthrough Listen Observations of FRB 121102: Polarization Properties of Eight New Spectrally Narrow Bursts
Jakob T. Faber, Vishal Gajjar, Andrew P. V. Siemion +15
We report polarization properties for eight narrowband bursts from FRB 121102 that have been re-detected in a high-frequency (4-8 GHz) Breakthrough Listen observation with the Gree…
A search for narrowband technosignatures from LTT 3780 with the Allen Telescope Array and the Karl G. Jansky Very Large Array
Chenoa D. Tremblay, Sofia Z. Sheikh, Vishal Gajjar +9
The LTT3780 system hosts two known exoplanets-LTT3780b, a rocky super-Earth, and LTT3780c, a temperate sub-Neptune-orbiting a nearby M dwarf on opposite sides of the radius valley.…
Narrow-Band Signal Localization for SETI on Noisy Synthetic Spectrogram Data
Bryan Brzycki, Andrew P. V. Siemion, Steve Croft +12
As it stands today, the search for extraterrestrial intelligence (SETI) is highly dependent on our ability to detect interesting candidate signals, or technosignatures, in radio te…
COSMIC's Large-Scale Search for Technosignatures during the VLA sky Survey: Survey Description and First Results
Chenoa D. Tremblay, Jared Sofair, Lucy Steffes +9
Developing algorithms to search through data efficiently is a challenging part of searching for signs of technology beyond our solar system. We have built a digital signal processi…
COSMIC: An Ethernet-based Commensal, Multimode Digital Backend on the Karl G. Jansky Very Large Array for the Search for Extraterrestrial Intelligence
Chenoa D. Tremblay, Savin Shynu Varghese, Jack Hickish +14
The primary goal of the search for extraterrestrial intelligence (SETI) is to gain an understanding of the prevalence of technologically advanced beings (organic or inorganic) in t…
A Search for Radio Technosignatures at the Solar Gravitational Lens Targeting Alpha Centauri
Nick Tusay, Macy J. Huston, Cayla M. Dedrick +17
Stars provide an enormous gain for interstellar communications at their gravitational focus, perhaps as part of an interstellar network. If the Sun is part of such a network, there…
The Breakthrough Listen Search for Intelligent Life: Observations of 1327 Nearby Stars over 1.10-3.45 GHz
Danny C. Price, J. Emilio Enriquez, Bryan Brzycki +21
Breakthrough Listen (BL) is a ten-year initiative to search for signatures of technologically capable life beyond Earth via radio and optical observations of the local Universe. A…
The Breakthrough Listen Search for Extraterrestrial Intelligence
Vishal Gajjar, Andrew Siemion, Steve Croft +34
The discovery of the ubiquity of habitable extrasolar planets, combined with revolutionary advances in instrumentation and observational capabilities, have ushered in a renaissance…
One of Everything: The Breakthrough Listen Exotica Catalog
Brian C. Lacki, Bryan Brzycki, Steve Croft +12
We present Breakthrough Listen's "Exotica" Catalog as the centerpiece of our efforts to expand the diversity of targets surveyed in the Search for Extraterrestrial Intelligence (SE…
Breakthrough Listen Follow-up of the Random Transiter (EPIC 249706694/HD 139139) with the Green Bank Telescope
Bryan Brzycki, Andrew P. V. Siemion, Steve Croft +16
The star EPIC 249706694 (HD 139139) was found to exhibit 28 transit-like events over an 87 day period during the Kepler mission's K2 Campaign 15 (Rappaport et al. 2019). These even…
Upper Limits on Radio Emission from the K2-18 System
Kelvin Wandia, Chenoa Tremblay, Michael A. Garrett +11
Stellar and planetary magnetic fields play a crucial role in the habitability of a planet and the integrity of its atmosphere. The recently claimed detection of biosignatures, meth…
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…
A deep-learning search for technosignatures of 820 nearby stars
Peter Xiangyuan Ma, Cherry Ng, Leandro Rizk +14
The goal of the Search for Extraterrestrial Intelligence (SETI) is to quantify the prevalence of technological life beyond Earth via their "technosignatures". One theorized technos…
A CNN and LSTM-Based Approach to Classifying Transient Radio Frequency Interference
Daniel Czech, Amit Mishra, Michael Inggs
Transient radio frequency interference (RFI) is detrimental to radio astronomy. It is particularly difficult to identify the sources of transient RFI, which is broadband and interm…
MeerKAT observations of Procyon at 815.5 MHz
Ian Heywood, Andrew P. V. Siemion, Daniel Czech +5
We have conducted observations of the nearby (11.46 ly) star system Procyon, using MeerKAT's UHF (544-1087 MHz) receivers. We produce full-Stokes time and frequency integrated cont…
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…
A Dictionary Approach to Identifying Transient RFI
Daniel Czech, Amit Mishra, Michael Inggs
As radio telescopes become more sensitive, the damaging effects of radio frequency interference (RFI) become more apparent. Near radio telescope arrays, RFI sources are often easil…
The Breakthrough Listen Search for Intelligent Life: Technosignature Search of 97 Nearby Galaxies
Carmen Choza, Daniel Bautista, Steve Croft +18
The Breakthrough Listen search for intelligent life is, to date, the most extensive technosignature search of nearby celestial objects. We present a radio technosignature search of…