The Breakthrough Listen Search for Intelligent Life: Technosignature Search of Transiting TESS Targets of Interest
The Breakthrough Listen (BL) Initiative, as part of its larger mission, is performing the most thorough technosignature search of nearby stars. Additionally, BL is collaborating with scientists working on NASA’s Transiting Exoplanet Survey Satellite (TESS) to examine TESS Targets of Interest (TOIs)...
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| Veröffentlicht in: | The Astronomical journal 2022-03, Vol.163 (3), p.104 |
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| creator | Franz, Noah Croft, Steve Siemion, Andrew P. V. Traas, Raffy Brzycki, Bryan Gajjar, Vishal Isaacson, Howard Lebofsky, Matthew MacMahon, David H. E. Price, Danny C. Sheikh, Sofia Z. DeMarines, Julia Drew, Jamie Worden, S. Pete |
| description | The Breakthrough Listen (BL) Initiative, as part of its larger mission, is performing the most thorough technosignature search of nearby stars. Additionally, BL is collaborating with scientists working on NASA’s Transiting Exoplanet Survey Satellite (TESS) to examine TESS Targets of Interest (TOIs) for technosignatures. Here, we present a 1–11 GHz radio technosignature search of 61 TESS TOIs that were in transit during their BL observation at the Robert C. Byrd Green Bank Telescope. We performed a narrowband Doppler drift search with a minimum S/N threshold of 10 across a drift rate range of ±4 Hz s
−1
with a resolution of 3 Hz. We removed radio frequency interference by comparing signals across cadences of target sources. After interference removal, there are no remaining events in our survey, and therefore no technosignature signals of interest detected in this work. This null result implies that at
L
,
S
,
C
, and
X
bands, fewer than 52%, 20%, 16%, and 15%, respectively, of TESS TOIs possess a transmitter with an equivalent isotropic radiated power greater than a few times 10
14
W. |
| doi_str_mv | 10.3847/1538-3881/ac46c9 |
| format | Article |
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−1
with a resolution of 3 Hz. We removed radio frequency interference by comparing signals across cadences of target sources. After interference removal, there are no remaining events in our survey, and therefore no technosignature signals of interest detected in this work. This null result implies that at
L
,
S
,
C
, and
X
bands, fewer than 52%, 20%, 16%, and 15%, respectively, of TESS TOIs possess a transmitter with an equivalent isotropic radiated power greater than a few times 10
14
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−1
with a resolution of 3 Hz. We removed radio frequency interference by comparing signals across cadences of target sources. After interference removal, there are no remaining events in our survey, and therefore no technosignature signals of interest detected in this work. This null result implies that at
L
,
S
,
C
, and
X
bands, fewer than 52%, 20%, 16%, and 15%, respectively, of TESS TOIs possess a transmitter with an equivalent isotropic radiated power greater than a few times 10
14
W.</description><subject>Astrobiology</subject><subject>Astronomy</subject><subject>Drift rate</subject><subject>Exoplanets</subject><subject>Extrasolar planets</subject><subject>Narrowband</subject><subject>Planet detection</subject><subject>Polls & surveys</subject><subject>Radio astronomy</subject><subject>Radio frequency interference</subject><subject>Search for extraterrestrial intelligence</subject><subject>Searching</subject><subject>Technosignatures</subject><subject>Transit</subject><issn>0004-6256</issn><issn>1538-3881</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>O3W</sourceid><recordid>eNp1UDtPwzAQthBIlMfOaAlGQu04SR02qApUqsTQMFuOe05Sih1sZ-Df46g8FtCddKe77yF9CF1QcsN4NpvSnPGEcU6nUmWFKg_Q5Od0iCaEkCwp0rw4RifebwmhlJNsglzVAr53IF9D6-zQtHjV-QAGr0E61WJtHV6aALtd14AJ8avhFlegWmN91xgZBgffYKtx5aTxXehMg6vFeo0r6RoIfnyNMg58OENHWu48nH_NU_TysKjmT8nq-XE5v1slis3KkGyI3tBaspIpXuS6BkkgVWWdznRNCMQlbrlWRNY5K5XMc8ljp5Iqzjhodoou97q9s-9DNBZbOzgTLUVaxCpLyrOIInuUctZ7B1r0rnuT7kNQIsZkxRijGGMU-2Qj5WpP6Wz_qym3ghZMsMjLRL8Z_a__gP2r-glhlYfj</recordid><startdate>20220301</startdate><enddate>20220301</enddate><creator>Franz, Noah</creator><creator>Croft, Steve</creator><creator>Siemion, Andrew P. 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We performed a narrowband Doppler drift search with a minimum S/N threshold of 10 across a drift rate range of ±4 Hz s
−1
with a resolution of 3 Hz. We removed radio frequency interference by comparing signals across cadences of target sources. After interference removal, there are no remaining events in our survey, and therefore no technosignature signals of interest detected in this work. This null result implies that at
L
,
S
,
C
, and
X
bands, fewer than 52%, 20%, 16%, and 15%, respectively, of TESS TOIs possess a transmitter with an equivalent isotropic radiated power greater than a few times 10
14
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| fulltext | fulltext |
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| ispartof | The Astronomical journal, 2022-03, Vol.163 (3), p.104 |
| issn | 0004-6256 1538-3881 |
| language | eng |
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| source | IOP Publishing Free Content; DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; IOPscience extra; Alma/SFX Local Collection |
| subjects | Astrobiology Astronomy Drift rate Exoplanets Extrasolar planets Narrowband Planet detection Polls & surveys Radio astronomy Radio frequency interference Search for extraterrestrial intelligence Searching Technosignatures Transit |
| title | The Breakthrough Listen Search for Intelligent Life: Technosignature Search of Transiting TESS Targets of Interest |
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