An Extragalactic Widefield Search for Technosignatures with the Murchison Widefield Array
arXiv:2408.10372 · doi:10.3847/1538-4357/ad6b11
Abstract
It is common for surveys that are designed to find artificial signals generated by distant civilizations to focus on galactic sources. Recently, researchers have started focusing on searching for all other sources within the field observed, including the vast population of background galaxies. Toward a population of galaxies in the background toward the Vela supernova remnant, we search for technosignatures, spectral and temporal features consistent with our understanding of technology. We set transmitter power limits for the detection of signals in a population of over 1,300 galaxies within a single field of view observed with the Murchison Widefield Array.
arXiv comment8 pages, 1 Table, 3 figures. Accepted by ApJ
References in corpus (22)
- The SIMBAD astronomical database
- The Murchison Widefield Array: the Square Kilometre Array Precursor at low radio frequencies
- WSClean: an implementation of a fast, generic wide-field imager for radio astronomy
- The HIPASS Catalogue - I. Data Presentation
- An optimized algorithm for multi-scale wideband deconvolution of radio astronomical images
- The Phase II Murchison Widefield Array: Design Overview
- 2MASS Photometric Redshift catalog: a comprehensive three-dimensional census of the whole sky
- Source finding in the era of the SKA (precursors): Aegean 2.0
- The low-frequency environment of the Murchison Widefield Array: radio-frequency interference analysis and mitigation
- The Hubble flow around the Local Group
- The Breakthrough Listen Search for Intelligent Life: Observations of 1327 Nearby Stars over 1.10-3.45 GHz
- The Breakthrough Listen Search for Intelligent Life: Target Selection of Nearby Stars and Galaxies
- The Parkes HI Zone of Avoidance Survey
- Kardashev's Classification at 50+: A Fine Vehicle with Room for Improvement
- An Opportunistic Search for ExtraTerrestrial Intelligence (SETI) with the Murchison Widefield Array
- The Breakthrough Listen Search for Intelligent Life: Technosignature Search of 97 Nearby Galaxies
- A search for Extraterrestrial Intelligence (SETI) toward the Galactic Anticenter with the Murchison Widefield Array
- A SETI Survey of the Vela Region using the Murchison Widefield Array: Orders of Magnitude Expansion in Search Space
- Deep NIR photometry of HI galaxies in the Zone of Avoidance
- Jumping the energetics queue: Modulation of pulsar signals by extraterrestrial civilizations
- A Search for Technosignatures toward the Galactic Centre at 150 MHz
- Upper limits on transmitter rate of extragalactic civilizations placed by Breakthrough Listen observations