CONTENTS Chiang Was Appointed As the New Director for from the Chair
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ASU Colloquium
New Frontiers in Artifact SETI: Waste Heat, Alien Megastructures, and "Tabby's Star" Jason T Wright Penn State University SESE Colloquium Arizona State University October 4, 2017 Contact (Warner Bros.) What is SETI? • “The Search for Extraterrestrial Intelligence” • A field of study, like cosmology or planetary science • SETI Institute: • Research center in Mountain View, California • Astrobiology, astronomy, planetary science, radio SETI • Runs the Allen Telescope Array • Berkeley SETI Research Center: • Hosted by the UC Berkeley Astronomy Department • Mostly radio astronomy and exoplanet detection • Runs SETI@Home • Runs the $90M Breakthrough Listen Project Communication SETI The birth of Radio SETI 1960 — Cocconi & Morrison suggest interstellar communication via radio waves Allen Telescope Array Operated by the SETI Institute Green Bank Telescope Operated by the National Radio Astronomy Observatory Artifact SETI Dyson (1960) Energy-hungry civilizations might use a significant fraction of available starlight to power themselves Energy is never “used up”, it is just converted to a lower temperature If a civilization collects or generates energy, that energy must emerge at higher entropy (e.g. mid-infrared radiation) This approach is general: practically any energy use by a civilization should give a star (or galaxy) a MIR excess IRAS All-Sky map (1983) The discovery of infrared cirrus complicated Dyson sphere searches. Credit: NASA GSFC, LAMBDA Carrigan reported on the Fermilab Dyson Sphere search with IRAS: Lots of interesting red sources: -
Astrobiology and the Search for Life Beyond Earth in the Next Decade
Astrobiology and the Search for Life Beyond Earth in the Next Decade Statement of Dr. Andrew Siemion Berkeley SETI Research Center, University of California, Berkeley ASTRON − Netherlands Institute for Radio Astronomy, Dwingeloo, Netherlands Radboud University, Nijmegen, Netherlands to the Committee on Science, Space and Technology United States House of Representatives 114th United States Congress September 29, 2015 Chairman Smith, Ranking Member Johnson and Members of the Committee, thank you for the opportunity to testify today. Overview Nearly 14 billion years ago, our universe was born from a swirling quantum soup, in a spectacular and dynamic event known as the \big bang." After several hundred million years, the first stars lit up the cosmos, and many hundreds of millions of years later, the remnants of countless stellar explosions coalesced into the first planetary systems. Somehow, through a process still not understood, the laws of physics guiding the unfolding of our universe gave rise to self-replicating organisms − life. Yet more perplexing, this life eventually evolved a capacity to know its universe, to study it, and to question its own existence. Did this happen many times? If it did, how? If it didn't, why? SETI (Search for ExtraTerrestrial Intelligence) experiments seek to determine the dis- tribution of advanced life in the universe through detecting the presence of technology, usually by searching for electromagnetic emission from communication technology, but also by searching for evidence of large scale energy usage or interstellar propulsion. Technology is thus used as a proxy for intelligence − if an advanced technology exists, so to does the ad- vanced life that created it. -
The Radio Search for Technosignatures in the Decade 2020–2030
Astro2020 Science White Paper The radio search for technosignatures in the decade 2020–2030 Background photo: central region of the Galaxy by Yuri Beletsky, Carnegie Las Campanas Observatory Thematic Area: Planetary Systems Principal Author: Name: Jean-Luc Margot Institution: University of California, Los Angeles Email: [email protected] Phone: 310.206.8345 Co-authors: Steve Croft (University of California, Berkeley), T. Joseph W. Lazio (Jet Propulsion Laboratory), Jill Tarter (SETI Institute), Eric J. Korpela (University of California, Berkeley) March 11, 2019 1 Scientific context Are we alone in the universe? This question is one of the most profound scientific questions of our time. All life on Earth is related to a common ancestor, and the discovery of other forms of life will revolutionize our understanding of living systems. On a more philosophical level, it will transform our perception of humanity’s place in the cosmos. Observations with the NASA Kepler telescope have shown that there are billions of habitable worlds in our Galaxy [e.g., Borucki, 2016]. The profusion of planets, coupled with the abundance of life’s building blocks in the universe, suggests that life itself may be abundant. Currently, the two primary strategies for the search for life in the universe are (1) searching for biosignatures in the Solar System or around nearby stars and (2) searching for technosignatures emitted from sources in the Galaxy and beyond [e.g., National Academies of Sciences, Engineer- ing, and Medicine, 2018]. Given our present knowledge of astrobiology, there is no compelling reason to believe that one strategy is more likely to succeed than the other. -
Stsci Newsletter: 1991 Volume 008 Issue 03
SPACE 'fEIFSCOPE SOENCE ...______._.INSTITUIE Operated for NASA by AURA November 1991 Vol. 8No. 3 HIGHLIGHTS OF THIS ISSUE: HSTSCIENCE HIGHLIGHTS WF/PC OBSERVATIONS OF THE STELLAR O NEW SCIENCE RESULTS ON M87, CRAB PULSAR CUSP IN M87 O COSTAR PROGRESSING WELL The photograph on the left shows one of a set of images of the central regions of the giant ellipti O ANSWERS TO YOUR QUESTIONS ABOUT HST DATA cal galaxy M87, obtained in June 1991 withHSI's Wide Field and Planetary Camera {WF/PC). 0 CYCLE 2 PEER REVIEW UNDERWAY Analysis of these images has revealed a stellar cusp in the core of M87, consistent with the pres ence of a massive black hole in its nucleus. A combined approach of image deconvolution and modelling has made it possible to investigate the starlight distribution in M87 down to a limiting radius of about 0'.'04 from the nucleus (or about 3 pc from the nucleus if the Virgo cluster is at 16 Mpc). The results show that the central struc ture of M87 can be described by three compo nents: a power-law starlight profile with an r·114 slope which continues unabated into the center, an unresolved central point source, and optical coun terparts of the jet knots identified by VLBI obser vations. In both the V- and /-band Planetary Camera images, the stellar cusp is consistent with the black-hole model proposed for M87 by Young et al. in 1978; in this model, there is a central mas sive object of about 3 x 109 Me. -
A Thin Diffuse Component of the Galactic Ridge X-Ray Emission and Heating of the Interstellar Medium Contributed by the Radiation of Galactic X-Ray Binaries
A&A 564, A107 (2014) Astronomy DOI: 10.1051/0004-6361/201323332 & c ESO 2014 Astrophysics A thin diffuse component of the Galactic ridge X-ray emission and heating of the interstellar medium contributed by the radiation of Galactic X-ray binaries Margherita Molaro1, Rishi Khatri1, and Rashid A. Sunyaev1,2 1 Max Planck Institut für Astrophysik, Karl-Schwarzschild-Str. 1, 85741 Garching, Germany e-mail: [email protected] 2 Space Research Institute, Russian Academy of Sciences, Profsoyuznaya 84/32, 117997 Moscow, Russia Received 23 December 2013 / Accepted 14 January 2014 ABSTRACT We predict athindiffuse component of the Galactic ridge X-ray emission (GRXE) arising from the scattering of the radiation of bright X-ray binaries (XBs) by the interstellar medium. This scattered component has the same scale height as that of the gaseous disk (∼80 pc) and is therefore thinner than the GRXE of stellar origin (scale height ∼130 pc). The morphology of the scattered component is furthermore expected to trace the clumpy molecular and HI clouds. We calculate this contribution to the GRXE from known Galactic XBs assuming that they are all persistent. The known XBs sample is incomplete, however, because it is flux limited and spans the lifetime of X-ray astronomy (∼50 years), which is very short compared with the characteristic time of 1000−10 000 years that would have contributed to the diffuse emission observed today due to time delays. We therefore also use a simulated sample of sources, to estimate the diffuse emission we should expect in an optimistic case assuming that the X-ray luminosity of our Galaxy is on average similar to that of other galaxies. -
Nasa and the Search for Technosignatures
NASA AND THE SEARCH FOR TECHNOSIGNATURES A Report from the NASA Technosignatures Workshop NOVEMBER 28, 2018 NASA TECHNOSIGNATURES WORKSHOP REPORT CONTENTS 1 INTRODUCTION .................................................................................................................................................................... 1 What are Technosignatures? .................................................................................................................................... 2 What Are Good Technosignatures to Look For? ....................................................................................................... 2 Maturity of the Field ................................................................................................................................................... 5 Breadth of the Field ................................................................................................................................................... 5 Limitations of This Document .................................................................................................................................... 6 Authors of This Document ......................................................................................................................................... 6 2 EXISTING UPPER LIMITS ON TECHNOSIGNATURES ....................................................................................................... 9 Limits and the Limitations of Limits ........................................................................................................................... -
BREAKTHROUGH LISTEN Searching for Signatures of Technology
BREAKTHROUGH LISTEN Searching for Signatures of Technology Howard Isaacson, Andrew Siemion & the Breakthrough Listen Team Overview Search Results Instrumentation Breakthrough Listen (BL) is the most comprehensive At radio frequencies, the capability of the data recording search for signs of extraterrestrial technology ever In the first analysis of BL data, including 30 minute cycles of observations of system directly determines survey speed, and given a undertaken. Using some of the most powerful 692 targets from our stellar sample, we find that none of the observed systems fixed observing time and spectral coverage, they telescopes in the world, combined with an host high-duty-cycle radio transmitters emitting between 1.1 to 1.9 GHz with an determine survey sensitivity as well. Breakthrough Listen unprecedented capability to record, archive and EIRP of 1013 watts, a luminosity readily achievable by our own civilization. This has the ability to write data to disk at the rate of 24 GB analyze the incoming data, Breakthrough Listen is comprehensive search over hundreds of stars represents only a small piece of per second. Using commodity servers and consumer humanity’s best hope of detecting evidence for the ever growing data set being compiled by Breakthrough Listen. class hard drives, the BL backend can record 6 GHz of technological civilizations beyond the Earth. BL his bandwidth at 8 bits for two polarizations. In a typical 6 currently observing a focused target list consisting hour session, the raw data recorded to disk can exceed ~1700 nearby stars and ~150 nearby galaxies. Our 350 TB. Using GPU processors the data volume is observing strategy is expressly designed to to allow Target Selection reduced to 2% of the raw data volume in less than 6 us to to effectively work through the mountains of hours. -
From Dust to Dust: Protoplanetary Disk Accretion, Hot Jupiter Climates, and the Evaporation of Rocky Planets
UC Berkeley UC Berkeley Electronic Theses and Dissertations Title From Dust to Dust: Protoplanetary Disk Accretion, Hot Jupiter Climates, and the Evaporation of Rocky Planets Permalink https://escholarship.org/uc/item/9jq3136f Author Perez-Becker, Daniel Alonso Publication Date 2013 Peer reviewed|Thesis/dissertation eScholarship.org Powered by the California Digital Library University of California From Dust to Dust: Protoplanetary Disk Accretion, Hot Jupiter Climates, and the Evaporation of Rocky Planets By Daniel Alonso Perez-Becker A dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of Philosophy in Physics in the Graduate Division of the University of California, Berkeley Committee in charge: Professor Eugene Chiang, Co-chair Professor Christopher McKee, Co-chair Professor Eliot Quataert Professor Geoffrey Marcy Fall 2013 From Dust to Dust: Protoplanetary Disk Accretion, Hot Jupiter Climates, and the Evaporation of Rocky Planets Copyright 2013 by Daniel Alonso Perez-Becker 1 Abstract From Dust to Dust: Protoplanetary Disk Accretion, Hot Jupiter Climates, and the Evaporation of Rocky Planets by Daniel Alonso Perez-Becker Doctor of Philosophy in Physics University of California, Berkeley Professor Eugene Chiang, Co-chair Professor Christopher McKee, Co-chair This dissertation is composed of three independent projects in astrophysics concerning phenomena that are concurrent with the birth, life, and death of planets. In Chapters 1 & 2, we study surface layer accretion in protoplanetary disks driven stellar X-ray and far-ultraviolet (FUV) radiation. In Chapter 3, we identify the dynamical mechanisms that control atmospheric heat redistribution on hot Jupiters. Finally, in Chapter 4, we characterize the death of low-mass, short-period rocky planets by their evaporation into a dusty wind. -
Astrobiology and the Search for Life Beyond Earth in the Next Decade
ASTROBIOLOGY AND THE SEARCH FOR LIFE BEYOND EARTH IN THE NEXT DECADE HEARING BEFORE THE COMMITTEE ON SCIENCE, SPACE, AND TECHNOLOGY HOUSE OF REPRESENTATIVES ONE HUNDRED FOURTEENTH CONGRESS FIRST SESSION September 29, 2015 Serial No. 114–40 Printed for the use of the Committee on Science, Space, and Technology ( Available via the World Wide Web: http://science.house.gov U.S. GOVERNMENT PUBLISHING OFFICE 97–759PDF WASHINGTON : 2016 For sale by the Superintendent of Documents, U.S. Government Publishing Office Internet: bookstore.gpo.gov Phone: toll free (866) 512–1800; DC area (202) 512–1800 Fax: (202) 512–2104 Mail: Stop IDCC, Washington, DC 20402–0001 COMMITTEE ON SCIENCE, SPACE, AND TECHNOLOGY HON. LAMAR S. SMITH, Texas, Chair FRANK D. LUCAS, Oklahoma EDDIE BERNICE JOHNSON, Texas F. JAMES SENSENBRENNER, JR., ZOE LOFGREN, California Wisconsin DANIEL LIPINSKI, Illinois DANA ROHRABACHER, California DONNA F. EDWARDS, Maryland RANDY NEUGEBAUER, Texas SUZANNE BONAMICI, Oregon MICHAEL T. MCCAUL, Texas ERIC SWALWELL, California MO BROOKS, Alabama ALAN GRAYSON, Florida RANDY HULTGREN, Illinois AMI BERA, California BILL POSEY, Florida ELIZABETH H. ESTY, Connecticut THOMAS MASSIE, Kentucky MARC A. VEASEY, Texas JIM BRIDENSTINE, Oklahoma KATHERINE M. CLARK, Massachusetts RANDY K. WEBER, Texas DON S. BEYER, JR., Virginia BILL JOHNSON, Ohio ED PERLMUTTER, Colorado JOHN R. MOOLENAAR, Michigan PAUL TONKO, New York STEPHEN KNIGHT, California MARK TAKANO, California BRIAN BABIN, Texas BILL FOSTER, Illinois BRUCE WESTERMAN, Arkansas BARBARA COMSTOCK, Virginia GARY PALMER, Alabama BARRY LOUDERMILK, Georgia RALPH LEE ABRAHAM, Louisiana DARIN LAHOOD, Illinois (II) C O N T E N T S September 29, 2015 Page Witness List ............................................................................................................. 2 Hearing Charter ..................................................................................................... -
GNU Radio Update 2019
GNU Radio Project Update Ben Hilburn Ticket Sales Ticket 100 150 200 250 300 350 50 0 2019-03-23 2019-03-26 2019-04-06 2019-04-11 2019-04-13 2019-04-15 2019-04-24 2019-04-26 2019-04-29 2019-05-01 2019-05-13 2019-05-23 2019-05-29 2019-06-06 2019-06-12 2019-06-18 2019-06-26 Purchases Ticket GRCon 2019-06-28 2019-06-30 2019-07-08 2019-07-10 2019-07-15 2019-07-19 2019-07-23 2019-07-26 2019-07-29 2019-07-31 2019-08-02 2019-08-05 2019-08-07 2019-08-09 2019-08-12 2019-08-14 2019-08-18 2019-08-20 2019-08-22 2019-08-24 2019-08-26 2019-08-28 2019-08-30 2019-09-01 2019-09-03 2019-09-05 Big News: 3.8 • Huge changelog with many significant updates! • More than 200+ contributors in the changelog. • The release announcement garnered significant attention & Not least of which is Python 3 migration! interest. Radio Society of Great Britain Magazine Credit: Derek Kozel Yes, 3.8 has squiggly lines. Of course the examples *just work*! Credit: James Horton Out of Tree Modules and 3.8 • Update your OOTMs! • The GNU Radio Wiki has a v3.8.0.0 OOT Module Porting Guide • Thanks to Bastian Bloessl for authoring the guide! Credit: Clayton Smith, @argilo The Stats Slide • Unique Cloners: 34% increase • Unique Visitors: 11% increase Stat 2017 2018 2019 YOY Executed CLAs 5 11 28 155% Closed Issues 68 140 221 58% Closed Pull Requests 177 272 443 63% Summer Coding Programs • Google Summer of Code • Arpit Gupta: Block Header Parsing Tool • Mentor: Nicolas Cuervo • Auto-parse your block header into GRC YAML! • Bowen Hu: gr-Verilog • Mentors: Sebastian Kowslowski, Marcus Mueller • Cycle-accurate simulation of Verilog files from GRC! • See their posters in the expo! • Special thanks to Felix Wunsch for running GSoC! GNU Radio Signals Challenge • We released a SigMF recording containing three hidden messages. -
Nasa's Next Four Large Telescopes Hearing Committee on Science, Space, and Technology House of Representatives
NASA’S NEXT FOUR LARGE TELESCOPES HEARING BEFORE THE SUBCOMMITTEE ON SPACE COMMITTEE ON SCIENCE, SPACE, AND TECHNOLOGY HOUSE OF REPRESENTATIVES ONE HUNDRED FIFTEENTH CONGRESS FIRST SESSION DECEMBER 6, 2017 Serial No. 115–41 Printed for the use of the Committee on Science, Space, and Technology ( Available via the World Wide Web: http://science.house.gov U.S. GOVERNMENT PUBLISHING OFFICE 27–680PDF WASHINGTON : 2018 COMMITTEE ON SCIENCE, SPACE, AND TECHNOLOGY HON. LAMAR S. SMITH, Texas, Chair FRANK D. LUCAS, Oklahoma EDDIE BERNICE JOHNSON, Texas DANA ROHRABACHER, California ZOE LOFGREN, California MO BROOKS, Alabama DANIEL LIPINSKI, Illinois RANDY HULTGREN, Illinois SUZANNE BONAMICI, Oregon BILL POSEY, Florida AMI BERA, California THOMAS MASSIE, Kentucky ELIZABETH H. ESTY, Connecticut JIM BRIDENSTINE, Oklahoma MARC A. VEASEY, Texas RANDY K. WEBER, Texas DONALD S. BEYER, JR., Virginia STEPHEN KNIGHT, California JACKY ROSEN, Nevada BRIAN BABIN, Texas JERRY MCNERNEY, California BARBARA COMSTOCK, Virginia ED PERLMUTTER, Colorado BARRY LOUDERMILK, Georgia PAUL TONKO, New York RALPH LEE ABRAHAM, Louisiana BILL FOSTER, Illinois DRAIN LAHOOD, Illinois MARK TAKANO, California DANIEL WEBSTER, Florida COLLEEN HANABUSA, Hawaii JIM BANKS, Indiana CHARLIE CRIST, Florida ANDY BIGGS, Arizona ROGER W. MARSHALL, Kansas NEAL P. DUNN, Florida CLAY HIGGINS, Louisiana RALPH NORMAN, South Carolina SUBCOMMITTEE ON SPACE HON. BRIAN BABIN, Texas, Chair DANA ROHRABACHER, California AMI BERA, California, Ranking Member FRANK D. LUCAS, Oklahoma ZOE LOFGREN, California MO BROOKS, Alabama DONALD S. BEYER, JR., Virginia BILL POSEY, Florida MARC A. VEASEY, Texas JIM BRIDENSTINE, Oklahoma DANIEL LIPINSKI, Illinois STEPHEN KNIGHT, California ED PERLMUTTER, Colorado BARBARA COMSTOCK, Virginia CHARLIE CRIST, Florida RALPH LEE ABRAHAM, Louisiana BILL FOSTER, Illinois DANIEL WEBSTER, Florida EDDIE BERNICE JOHNSON, Texas JIM BANKS, Indiana ANDY BIGGS, Arizona NEAL P. -
Full Curriculum Vitae
Jason Thomas Wright—CV Department of Astronomy & Astrophysics Phone: (814) 863-8470 Center for Exoplanets and Habitable Worlds Fax: (814) 863-2842 525 Davey Lab email: [email protected] Penn State University http://sites.psu.edu/astrowright University Park, PA 16802 @Astro_Wright US Citizen, DOB: 2 August 1977 ORCiD: 0000-0001-6160-5888 Education UNIVERSITY OF CALIFORNIA, BERKELEY PhD Astrophysics May 2006 Thesis: Stellar Magnetic Activity and the Detection of Exoplanets Adviser: Geoffrey W. Marcy MA Astrophysics May 2003 BOSTON UNIVERSITY BA Astronomy and Physics (mathematics minor) summa cum laude May 1999 Thesis: Probing the Magnetic Field of the Bok Globule B335 Adviser: Dan P. Clemens Awards and fellowships NASA Group Achievement Award for NEID 2020 Drake Award 2019 Dean’s Climate and Diversity Award 2012 Rock Institute Ethics Fellow 2011-2012 NASA Group Achievement Award for the SIM Planet Finding Capability Study Team 2008 University of California Hewlett Fellow 1999-2000, 2003-2004 National Science Foundation Graduate Research Fellow 2000-2003 UC Berkeley Outstanding Graduate Student Instructor 2001 Phi Beta Kappa 1999 Barry M. Goldwater Scholar 1997 Last updated — Jan 15, 2021 1 Jason Thomas Wright—CV Positions and Research experience Associate Department Head for Development July 2020–present Astronomy & Astrophysics, Penn State University Director, Penn State Extraterrestrial Intelligence Center March 2020–present Professor, Penn State University July 2019 – present Deputy Director, Center for Exoplanets and Habitable Worlds July 2018–present Astronomy & Astrophysics, Penn State University Acting Director July 2020–August 2021 Associate Professor, Penn State University July 2015 – June 2019 Associate Department Head for Diversity and Equity August 2017–August 2018 Astronomy & Astrophysics, Penn State University Visiting Associate Professor, University of California, Berkeley June 2016 – June 2017 Assistant Professor, Penn State University Aug.