The Event Horizon Telescope Geoffrey Bower ASIAA, Hilo For the EHT - PowerPoint PPT Presentation

The Event Horizon Telescope Geoffrey Bower ASIAA, Hilo For the EHT Collaboration Shiokawa et al

Funding Support EAVW, 6 September 2018

Institutions on the EHT Board Academia Sinica Institute of Astronomy and Astrophysics University of Arizona University of Chicago East Asian Observatory Goethe-Universität Institut de Radioastronomie Millimétrique Large Millimeter Telescope Max Planck Institute for Radioastronomy MIT Haystack Observatory National Astronomy Observatory of Japan Perimeter Institute for Theoretical Physics Radboud University Smithsonian Astrophysical Observatory EAVW, 6 September 2018

Affiliated Institutions Aalto University Kavli Institute for Astronomy and Astrophysics Universiteit van Amsterdam Korea Astronomy and Space Science Institute Arizona Radio Observatory Leiden University Instituto de Astrofísica de Andalucía University of Maryland Instituto Nacional de Astrofísica, Óptica y Electrónica University of Massachusetts Amherst Institute for Astrophysical Research Max Planck Institute for Extraterrestrial Physics Boston University Nanjing University Brandeis University National Astronomical Observatories of China University of California, Berkeley Onsala Space Observatory California Institute of Technology Peking University Chinese Academy of Sciences Purple Mountain Observatory Cologne University University of Science and Technology Universidad de Concepción University of Science and Technology of China Cornell University Seoul National University Institute of High Energy Physics Shanghai Astronomical Observatory Huazhong University of Science & Technology Institute of Statistical Mathematics University of Illinois University of Waterloo Joint Institute for VLBI ERIC Yunnan Observatory EAVW, 6 September 2018

Global Team at the EHT2016 Conference 11/2016; Cambridge, MA EAVW, 6 September 2018

Members of the EHT team at Telescopes EAVW, 6 September 2018

The Largest Black Holes on the Sky

Strong Evidence for a Black Hole Gravity Collaboration 2018

² MM VLBI Imaging of Sgr A* Observed Angular Diameter Event Horizon Observed Size of SgrA* Doeleman et al 2008 ‘ ’ n’ ‘ ’

The Intrinsic Size of Sgr A* 10 5 R s ~5 R s Johnson et al 2018

Fundamental Physics with Sgr A* Constraints on Black Hole Spin from images Broderick et al 2011 Violations of the No-Hair Theorem Introduction of Quadrupole Moment Psaltis and Broderick Constraints on Geometry/Mass from Orbiting Hot Spots Doeleman et al 2009

GRMHD Simulations of EHT Images Theory & Simulations WG Simulations with many different algorithms and models of the microphysics show broadly consistent images that are asymmetric and punctuated by the black-hole shadow. EAVW, 6 September 2018

Event Horizon Telescope in 2017 • Atacama Large Millimeter Array (ALMA), Chile • ALMA Pathfinder Experiment (APEX), Chile • James Clerk Maxwell Telescope (JCMT), Hawaii • Large Millimeter Telescope (LMT), Mexico • IRAM 30-meter Telescope, Spain • South Pole Telescope (SPT), South Pole • Submillimeter Array (SMA), Hawaii M. Johnson/SAO • Submillimeter Telescope (SMT), Arizona EAVW, 6 September 2018

Event Horizon Telescope in 2018 GLT GLT D. Marrone/UofA SMT IRAM 30m SMA/JCMT LMT LMT ALMA/ ALMA/ APEX APEX SPT SPT SPT GLT SMT LMT IRAM 30m ALMA SMA/JCMT SMA/JCMT EAVW, 6 September 2018

Multi-Wavelength Coverage: Sgr A* in April 2017 M. Johnson/SAO EAVW, 6 September 2018

Multi-Wavelength Coverage: M87 in April 2017 M. Johnson/SAO EAVW, 6 September 2018

u-v Coverage with EHT 2017: Sgr A* Calibration & Error Analysis WG EAVW, 6 September 2018

u-v Coverage with EHT 2017: M87 Calibration & Error Analysis WG EAVW, 6 September 2018

EHT2017: A Large Number of Highly Significant Detections Calibration & Error Analysis WG EAVW, 6 September 2018

EHT2017: Quantifying and Understanding Measurement Uncertainties Calibration & Error Analysis WG Closure phases along trivial triangles are consistent with zero, within thermal uncertainties EAVW, 6 September 2018

EHT2017: J1733-1304 LMT Calibration & Error Analysis WG ALMA SPT EAVW, 6 September 2018

EHT2017: 3C273 LMT Calibration & Error Analysis WG SMT ALMA EAVW, 6 September 2018

The Event Horizon Telescope • The highest resolution images of black holes • Inclusion of ALMA is a leap in Follow updates online: sensitivity and imaging quality • 2017 data are excellent https://eventhorizontelescope.org • Extreme care is being taken in analysis and imaging https://twitter.com/ehtelescope • Big things to come in 2019 and beyond! https://www.facebook.com/ehtelescope EAVW, 6 September 2018