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On Detecting Interstellar Scintillation in Narrowband Radio SETI.
- Source :
-
Astrophysical Journal . 7/20/2023, Vol. 952 Issue 1, p1-14. 14p. - Publication Year :
- 2023
-
Abstract
- To date, the search for radio technosignatures has focused on sky location as a primary discriminant between technosignature candidates and anthropogenic radio frequency interference (RFI). In this work, we investigate the possibility of searching for technosignatures by identifying the presence and nature of intensity scintillations arising from the turbulent, ionized plasma of the interstellar medium. Past works have detailed how interstellar scattering can both enhance and diminish the detectability of narrowband radio signals. We use the NE2001 Galactic free electron density model to estimate scintillation timescales to which narrowband signal searches would be sensitive, and discuss ways in which we might practically detect strong intensity scintillations in detected signals. We further analyze the RFI environment of the Robert C. Byrd Green Bank Telescope with the proposed methodology and comment on the feasibility of using scintillation as a filter for technosignature candidates. [ABSTRACT FROM AUTHOR]
- Subjects :
- *RADIO interference
*ELECTRON density
*INTERSTELLAR medium
Subjects
Details
- Language :
- English
- ISSN :
- 0004637X
- Volume :
- 952
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Astrophysical Journal
- Publication Type :
- Academic Journal
- Accession number :
- 164983169
- Full Text :
- https://doi.org/10.3847/1538-4357/acdee0