A Narrow-Band Search for Extra Terrestrial Intelligence (SETI) using the Interstellar Contact Channel Hypothesis

DG Blair; RP Norris; ER Troup; R Twardy; KJ Wellington; AJ Williams; AE Wright; Marjan Zadnik

doi:10.1093/mnras/257.1.105

A Narrow-Band Search for Extra Terrestrial Intelligence (SETI) using the Interstellar Contact Channel Hypothesis

DG Blair, RP Norris, ER Troup, R Twardy, KJ Wellington, AJ Williams, AE Wright, Marjan Zadnik

Graduate Research School

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

We report a search for narrow spectral line emission from 176 targets (including 166 stars and seven globular clusters) at the hypothesized ‘interstellar communications channel’ frequency of 4.462336275 GHz ( = π times the neutral hydrogen line at 1.42 GHz) using the Parkes Radio telescope. The frequency was Doppler corrected for the solar barycentre, target barycentre and cosmic microwave background (CMB) reference frames. If a ‘Galactic club’ of extraterrestrial civilizations exists, then our null results, down to a 3σ limit of 2 Jy (6 Jy in CMB frame), set an upper limit of 108 yr on the lifetime of such civilizations.

Original language	English
Pages (from-to)	105-109
Journal	Monthly Notices of the Royal Astronomical Society
Volume	257
Issue number	1
DOIs	https://doi.org/10.1093/mnras/257.1.105
Publication status	Published - 1992

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title = "A Narrow-Band Search for Extra Terrestrial Intelligence (SETI) using the Interstellar Contact Channel Hypothesis",

abstract = "We report a search for narrow spectral line emission from 176 targets (including 166 stars and seven globular clusters) at the hypothesized {\textquoteleft}interstellar communications channel{\textquoteright} frequency of 4.462336275 GHz ( = π times the neutral hydrogen line at 1.42 GHz) using the Parkes Radio telescope. The frequency was Doppler corrected for the solar barycentre, target barycentre and cosmic microwave background (CMB) reference frames. If a {\textquoteleft}Galactic club{\textquoteright} of extraterrestrial civilizations exists, then our null results, down to a 3σ limit of 2 Jy (6 Jy in CMB frame), set an upper limit of 108 yr on the lifetime of such civilizations.",

author = "DG Blair and RP Norris and ER Troup and R Twardy and KJ Wellington and AJ Williams and AE Wright and Marjan Zadnik",

year = "1992",

doi = "10.1093/mnras/257.1.105",

language = "English",

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pages = "105--109",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

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A Narrow-Band Search for Extra Terrestrial Intelligence (SETI) using the Interstellar Contact Channel Hypothesis. / Blair, DG; Norris, RP; Troup, ER; Twardy, R; Wellington, KJ; Williams, AJ; Wright, AE; Zadnik, Marjan.

In: Monthly Notices of the Royal Astronomical Society, Vol. 257, No. 1, 1992, p. 105-109.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - A Narrow-Band Search for Extra Terrestrial Intelligence (SETI) using the Interstellar Contact Channel Hypothesis

AU - Blair, DG

AU - Norris, RP

AU - Troup, ER

AU - Twardy, R

AU - Wellington, KJ

AU - Williams, AJ

AU - Wright, AE

AU - Zadnik, Marjan

PY - 1992

Y1 - 1992

N2 - We report a search for narrow spectral line emission from 176 targets (including 166 stars and seven globular clusters) at the hypothesized ‘interstellar communications channel’ frequency of 4.462336275 GHz ( = π times the neutral hydrogen line at 1.42 GHz) using the Parkes Radio telescope. The frequency was Doppler corrected for the solar barycentre, target barycentre and cosmic microwave background (CMB) reference frames. If a ‘Galactic club’ of extraterrestrial civilizations exists, then our null results, down to a 3σ limit of 2 Jy (6 Jy in CMB frame), set an upper limit of 108 yr on the lifetime of such civilizations.

AB - We report a search for narrow spectral line emission from 176 targets (including 166 stars and seven globular clusters) at the hypothesized ‘interstellar communications channel’ frequency of 4.462336275 GHz ( = π times the neutral hydrogen line at 1.42 GHz) using the Parkes Radio telescope. The frequency was Doppler corrected for the solar barycentre, target barycentre and cosmic microwave background (CMB) reference frames. If a ‘Galactic club’ of extraterrestrial civilizations exists, then our null results, down to a 3σ limit of 2 Jy (6 Jy in CMB frame), set an upper limit of 108 yr on the lifetime of such civilizations.

U2 - 10.1093/mnras/257.1.105

DO - 10.1093/mnras/257.1.105

M3 - Article

VL - 257

SP - 105

EP - 109

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 1

ER -

A Narrow-Band Search for Extra Terrestrial Intelligence (SETI) using the Interstellar Contact Channel Hypothesis

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