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July 2015 Royal Society, London http://breakthroughinitiatives.org - - PowerPoint PPT Presentation

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A NDREW S IEMION July 2015 Royal Society, London http://breakthroughinitiatives.org http://seti.berkeley.edu : Is Intelligence a Common Outcome? Shin-ya Narusawa John Gertz Joo Alves Nishi-Harima Astr. FIRSST University of Vienna Board

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ANDREW SIEMION

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July 2015 Royal Society, London

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http://breakthroughinitiatives.org http://seti.berkeley.edu

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: Is Intelligence a Common Outcome?

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Shin-ya Narusawa Nishi-Harima Astr. Obs. Brian Schmidt Australian Nat. Univ. Sara Seager MIT Seth Shostak SETI Institute Lucianne Walkowicz University of Chicago Jill Tarter SETI Institute Jason Wright Penn State University Shelley Wright UC San Diego João Alves University of Vienna Matthew Bailes Swinburne Jim Cordes Cornell University Paul Davies Arizona State Frank Drake UC Santa Cruz Ron Ekers CSIRO/ATNF Andrew Fraknoi Foothill College Mike Garrett Manchester/JBO John Gertz FIRSST Paul Horowitz Harvard University Andrew Howard Caltech Nikolai Kardashev Russian Acad. of Sciences Joseph Lazio NASA JPL Di Li Chinese Nat. Astr. Obs. Chris Lintott Oxford University Avi Loeb Harvard University

Board of Advisors

Chair, Lord Martin Rees

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The Breakthrough Listen Initiative: Overview 1 Million Nearby Stars 100 Galaxies 1 day of Breakthrough Listen = 1 year of any previous search All data accessible to the scientific community and the public. Milky Way Galactic Plane Survey Commitment: 10 years, 100 million dollars.

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“A SILICON-VALLEY APPROACH TO THE SEARCH FOR ADVANCED LIFE”

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Automated Planet Finder - Lick Observatory

PS Howard Isaacson (UC Berkeley)

  • Search for extremely narrow emission lines from artificial lasers
  • Extremely high resolution “Levy Spectrometer”
  • 374 - 950 nm, λ/Δλ= 105
  • 10%

Green Bank Telescope - Green Bank, WV

PS Emilio Enriquez (UC Berkeley / Radboud)

  • Radio search focusing on targeted and raster observations
  • Nearly continuous frequency coverage 300 MHz - 100 GHz
  • Flexible IF system can deliver up to 10 GHz dual-pol analog bandwidth
  • Extremely radio quiet (Federally protected radio quiet zone)
  • ~20%

Parkes Telescope - New South Wales, Australia

PS Daniel Price (UC Berkeley / Swinburne)

  • Radio search focusing on surveys
  • Southern hemisphere location gives great access to galactic plane
  • Multi-beam receiver allows very efficient L-band (1.2 - 1.5 GHz) galactic

plane surveys (Parkes Multibeam Receiver)

  • Wide-band single-pixel and Phased Array Feed upgrades possible.
  • ~20%

The Breakthrough Listen Initiative: Telescopes

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Automated Planet Finder - Lick Observatory

PS Howard Isaacson (UC Berkeley)

Green Bank Telescope - Green Bank, WV

PS Emilio Enriquez (UC Berkeley / Radboud)

  • 12 GHz baseband data recorder (450 Gbps)
  • 8 PB Storage
  • 65x GPUs (high resolution spectroscopy++)

Parkes Telescope - New South Wales, Australia

PS Daniel Price (UC Berkeley / Swinburne)

  • 5 GHz Baseband Data Recorder (190 Gbps)
  • 3.3 PB Storage
  • 28x GPUs (high resolution spectroscopy++)

The Breakthrough Listen Initiative: Telescopes

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10 - 100 GHz: Completely unexplored part of the radio spectrum, a singular capability

  • f GBT. Nearby Stars, Nearby

Galaxies, Galactic Center Additional observations of nearby stars to probe intermittency, cores of nearby galaxies. Multi-beam surveys of Galactic Plane and Galactic Center. Nearby star and galaxy

  • bservations with new ultra-

wide-band feed (Oct 2018)

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  • Greatly diminished ISM

impairments (Cordes and Lazio, Messerschmitt et al.)

  • Cost effectiveness of beacons

(Benford et al.)

  • Channel capacity and information

(Morrison et al)

10 GHz+ Radio SETI

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  • Extragalactic “free-space”

microwave window? Brian Lacki 2018

10+ GHz Radio SETI

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NAOC: FAST Five-Hundred Metre

The Breakthrough Listen Initiative: Partners

MoU Signed 2016

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Jodrell Bank / University of Manchester

The Breakthrough Listen Initiative: Partners

MoU Signed 2017

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LOFAR: Low Frequency Array

Dual-site observations w/ Birr and Chilbolton International Stations P . Gallagher + G. Foster

  • cf. Griffin Foster, Wednesday
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The Square Kilometre Array: Precursors

MeerKAT - South Africa 64 15m dishes - a ‘Southern JVLA’ MWA - Australia 2048 dipole antennas - 80-300 MHz ASKAP - Australia Dish array with Phased-Array Feeds

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Primary Observer Commensal Beams

“Commensal” Observations

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  • 1 Million Nearby Stars 1-4 GHz in 3 years ++

MeerKAT 64 Antenna Array - Q2 2018 SKA1-mid 190 Dish Array 202X

Breakthrough Listen on MeerKAT

PS Griffin Foster (UC Berkeley / Oxford)

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13.375 MHz (x64)

Ingest Buffer F-Engine Data Compute Nodes 3+ min 3+ min 3+ min 3+ min

Coarse Channelizer

6.53 kHz Res 6.53 kHz Res 6.53 kHz Res 6.53 kHz Res

Beamformer 64 coherent beams + 1 incoherent beam

Fine Channelizer

1.49 Hz Res

Power Detect

1 second Res

Drift Search

TurboSETI GPU Storage Nodes Head Nodes

Provisioning CAM Interface Orchestration Candidate Database Raw Data Snapshots Inference Engine

Breakthrough Listen on MeerKAT

PS Griffin Foster (UC Berkeley / Oxford)

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Breakthrough Listen on MeerKAT

PS Griffin Foster (UC Berkeley / Oxford) Logan Pearce, BL Summer Student 2018

log10( GAIA DR2 Star Count )

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Breakthrough Listen SETI and transient “voltage capture system” installed April 2018. Initially targeting narrow-band emission in several observing modes (phased-array, incoherent sum)

A Serendipitous MWA Search for Narrow-band and Broad-band Low Frequency Radio Transmissions from 1I/2017 U1 'Oumuamua, Tingay et al. 2018. A search for Extraterrestrial Intelligence (SETI) toward the Galactic Anticenter with the Murchison Widefield Array, Tingay, Tremblay and Croft 2018

Breakthrough Listen on MeerKAT

PS Steve Croft (UC Berkeley)

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  • Nanosecond pulsed optical SETI
  • Analysis of existing data archive
  • ~30 hours / year targeted observations

VERITAS Leads: Dr. Jamie Holder (Univ. Delaware) & Dr. David Williams (U.C. Santa Cruz)

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Howard Isaacson et al, PASP 2016 The Breakthrough Listen Search for Intelligent Life: Target Selection of Nearby Stars and Galaxies

1 Million Nearby Stars 100 Galaxies Milky Way Galactic Plane Survey

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The Breakthrough Listen Search for Advanced Life: 1.1-1.9 GHz observations of 692 Nearby Stars (E. Enriquez et al. 2017, ApJ arXiv:1709.03491)

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! "

#$%&'()*+,-.//012

3 4" 4! 45 46 473 73 7" 7! 75 76 "3 ""

89:0'-*;< =;.>'?'@**)A>',"37B1 C.;D',"3751'.EF C.;D',"3751'G C.;D',"3751'H C.;D',"3751'I))J K:AL:*M',"37N1 &9*AM:O &9*AM:O'I))J C*;*P:/Q'?'K.+.M',7RRN1 S.)HA0',7R651 8.;/A;',7R631 SA;0G9TT;',7RBN1

. F

Transmitter Rate log 1 Nstars vrel

(E. Enriquez et al. ApJ 2018, arXiv:1709.03491)

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No narrow-band emission detected over 1-12 GHz at luminosity (equivalent isotropically radiated power) limit of 0.1 W.

`Oumuamua

arXiv:1801.02814

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PASP 2018, Submitted PASP 2018, Accepted

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PASP 2018, Submitted PASP 2018, Accepted

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The Breakthrough Listen Search for Intelligent Life: Searching Boyajian’s Star for Laser Emission Lipman et al, PASP 2018 Submitted KIC 8462851 (Boyajian et al)

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The Breakthrough Listen Search for Intelligent Life: No Evidence of Claimed Periodic Spectral Modulations in High Resolution Optical Spectra of Nearby Stars Isaacson et al, PASP 2018 Accepted

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FRB 121102

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FRB 121102 with the BL Pipeline at GBT

Gajjar et al. ApJ 2018 (astro-ph/1804.04101)

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Convolutional neural network (CNN) classifier, detects simulated signal types in waterfall plots. Deployment-ready, 20 times faster than real time. Found 72 new pulses from C-band

  • bservation of FRB121102 down

to human-visible threshold.

FRB 121102: Machine Learning Approach

Zhang et al., ApJ 2018

  • cf. Steve Croft for Gerry Zhang, Wednesday
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Wide-field Radio SETI and Breakthrough Listen

Wide-field Prototype Illustration SKA MFAA Illustration

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Wide-field Radio SETI and Breakthrough Listen

Wide-field Prototype Illustration SKA MFAA Illustration

Wide-field Radio SETI and Breakthrough Listen

http:/ /seti.berkeley.edu http:/ /breakthroughinitiatives.org