2020AJ....159...86P


Query : 2020AJ....159...86P

2020AJ....159...86P - Astron. J., 159, 86-86 (2020/March-0)

The Breakthrough Listen search for intelligent life: observations of 1327 nearby stars over 1.10-3.45 GHz.

PRICE D.C., ENRIQUEZ J.E., BRZYCKI B., CROFT S., CZECH D., DEBOER D., DEMARINES J., FOSTER G., GAJJAR V., GIZANI N., HELLBOURG G., ISAACSON H., LACKI B., LEBOFSKY M., MacMAHON D.H.E., DE PATER I., SIEMION A.P.V., WERTHIMER D., GREEN J.A., KACZMAREK J.F., MADDALENA R.J., MADER S., DREW J. and WORDEN S.P.

Abstract (from CDS):

Breakthrough Listen (BL) is a 10 year initiative to search for signatures of technologically capable life beyond Earth via radio and optical observations of the local universe. A core part of the BL program is a comprehensive survey of 1702 nearby stars at radio wavelengths (1-10 GHz). Here, we report on observations with the 64 m CSIRO Parkes radio telescope in New South Wales, Australia, and the 100 m Robert C. Byrd Green Bank radio telescope in West Virginia, USA. Over 2016 January to 2019 March, a sample of 1138 stars was observed at Green Bank using the 1.10-1.90 GHz and 1.80-2.80 GHz receivers, and 189 stars were observed with Parkes over 2.60-3.45 GHz. We searched these data for the presence of engineered signals with Doppler-acceleration drift rates between ±4 Hz s–1. Here, we detail our data analysis techniques and provide examples of detected events. After excluding events with characteristics consistent with terrestrial radio interference, we are left with zero candidates. That is, we find no evidence of putative radio transmitters above 2.1×1012 W, and 9.1×1012 W for Green Bank and Parkes observations, respectively. These observations constitute the most comprehensive search over 1.10-3.45 GHz for technosignatures to date. All data products, totaling ∼219 TB, are available for download as part of the first BL data release (DR1), as described in a companion paper.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Astrobiology - Technosignatures - Search for extraterrestrial intelligence

Simbad objects: 25

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Number of rows : 25
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 HD 1388 PM* 00 17 58.8685975874 -13 27 20.307118533   7.09 6.50     G0V 110 0
2 HD 17925 RS* 02 52 32.1281856011 -12 46 10.968056223 7.48 6.91 6.05 5.34 4.89 K1V 488 0
3 DENIS J025503.3-470049 BD* 02 55 03.6927058871 -47 00 51.356903955     22.921 19.906 17.454 L9 129 0
4 WISE J035000.32-565830.2 BD* 03 50 00.32784 -56 58 30.2340           Y1 25 0
5 * 88 Tau SB* 04 35 39.2662111032 +10 09 38.711644992   4.412 4.250   4.06 A5m 205 0
6 * pi.01 Ori PM* 04 54 53.7287660 +10 09 02.995200   4.723 4.648     A0Va_lB 250 0
7 WISE J053516.80-750024.9 BD* 05 35 16.80696 -75 00 24.9156           Y1:+ 21 0
8 HD 263175 PM* 06 46 05.0505562628 +32 33 20.446428575   9.76   8.2   K3V 81 0
9 PSR B0823+26 Psr 08 26 51.438 +26 37 22.83           ~ 483 1
10 BD+21 1949 PM* 08 58 38.1795955716 +20 32 48.302170064 11.395 10.361 9.214 8.504 7.907 M0 59 0
11 HD 80606b Pl 09 22 37.5769478105 +50 36 13.434928660           ~ 298 1
12 NAME Luhman 16 ** 10 49 18.91536 -53 19 10.0776   16.86 16.20   14.95 L7.5+T0.5 85 0
13 HD 97233 PM* 11 11 33.1488855786 -14 59 28.926586491 11.394 10.26 9.038 8.285 7.607 K5Vk: 79 1
14 * iot Crt PM* 11 38 40.0180807728 -13 12 06.981257088   5.97 5.48     F6.5V 69 0
15 HD 121560 PM* 13 55 49.9935853152 +14 03 23.407899444   6.66   5.9   F6V 131 0
16 UCAC4 195-119117 PM* 15 40 43.5364511947 -51 01 35.965163897       15.08   M6.5 13 0
17 * kap CrB PM* 15 51 13.9312943632 +35 39 26.573691158 6.69 5.82 4.82 4.06 3.57 K1IVa 249 1
18 Ross 145 PM* 18 41 59.0357706782 +31 49 49.763356483   12.84 13.126 10.845   M2V 78 0
19 SCR J1845-6357 LM* 18 45 05.2532493080 -63 57 47.450109578     17.40 14.99 12.46 M8.5V 63 1
20 Kepler-78b Pl 19 34 58.0139307295 +44 26 53.957326851           ~ 125 1
21 * ksi Cap Pe* 20 12 25.8705704904 -12 37 02.991099360   6.33 5.85     F7VFe-0.5 94 0
22 * alf02 Cap PM* 20 18 03.2559477 -12 32 41.468352 5.20 4.51 3.58 2.91 2.42 G9III 167 0
23 Wolf 896 PM* 20 56 46.5969248424 -10 26 54.747253252 14.112 12.999 11.487 10.428 9.106 dM2.5 94 0
24 HD 210909 * 22 13 25.1859626448 +12 43 16.939472808   9.34 8.31     K2 10 0
25 HD 216594 * 22 55 06.0102276000 -55 40 44.182738452   9.41 9.13     F0IV/V 6 0

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2022.08.10-06:26:56

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