Doeleman, Sheperd

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Staff of Smithsonian Astrophysical Observatory

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• Background And Education
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• Research And Grants
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• Publications
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Background And Education

awards and honors

• Smithsonian Scholarly Studies Award, conferred by Smithsonian Scholarly Studies Awards, 2020

Research And Grants

investigator on

• VLBI with the LMT: Bringing Black Holes into Focus  awarded by Competitive Grants Program for Science
• VLBI with the LMT: Bringing Black Holes into Focus  awarded by Competitive Grants Program for Science

Publications

selected publications

• article

  • Evaluation of New Submillimeter VLBI Sites for the Event Horizon Telescope 2021
  • First M87 Event Horizon Telescope Results. VII. Polarization of the Ring 2021
  • First M87 Event Horizon Telescope Results. VIII. Magnetic Field Structure near The Event Horizon 2021
  • Polarimetric Properties of Event Horizon Telescope Targets from ALMA 2021
  • Closure Statistics in Interferometric Data 2020
  • Event Horizon Telescope imaging of the archetypal blazar 3C 279 at an extreme 20 microarcsecond resolution 2020
  • Monitoring the Morphology of M87* in 2009-2017 with the Event Horizon Telescope 2020
  • SYMBA: An end-to-end VLBI synthetic data generation pipeline. Simulating Event Horizon Telescope observations of M 87 2020
  • THEMIS: A Parameter Estimation Framework for the Event Horizon Telescope 2020
  • Universal interferometric signatures of a black hole's photon ring 2020
  • Verification of Radiative Transfer Schemes for the EHT 2020
  • Detection of Pulses from the Vela Pulsar at Millimeter Wavelengths with Phased ALMA 2019
  • EHT-HOPS Pipeline for Millimeter VLBI Data Reduction 2019
  • Metrics and Motivations for Earth-Space VLBI: Time-resolving Sgr A* with the Event Horizon Telescope 2019
  • Micro-arcsecond structure of Sagittarius A∗ revealed by high-sensitivity 86 GHz VLBI observations 2019
  • Prospects for Wideband VLBI Correlation in the Cloud 2019
  • The Event Horizon General Relativistic Magnetohydrodynamic Code Comparison Project 2019
  • The Size, Shape, and Scattering of Sagittarius A* at 86 GHz: First VLBI with ALMA 2019
  • ALMA Polarimetry of Sgr A*: Probing the Accretion Flow from the Event Horizon to the Bondi Radius 2018
  • Detection of Intrinsic Source Structure at ~3 Schwarzschild Radii with Millimeter-VLBI Observations of SAGITTARIUS A* 2018
  • The 1.4 mm Core of Centaurus A: First VLBI Results with the South Pole Telescope 2018
  • The ALMA Phasing System: A Beamforming Capability for Ultra-high-resolution Science at (Sub)Millimeter Wavelengths 2018
  • Determining the neutrino mass with cyclotron radiation emission spectroscopy-Project 8 2017
  • Dynamical Imaging with Interferometry 2017
  • Imaging the Schwarzschild-radius-scale Structure of M87 with the Event Horizon Telescope Using Sparse Modeling 2017
  • Probing the Magnetic Field Structure in Sgr A* on Black Hole Horizon Scales with Polarized Radiative Transfer Simulations 2017
  • Quantifying Intrinsic Variability of Sagittarius A* Using Closure Phase Measurements of the Event Horizon Telescope 2017
  • Seeing the unseeable 2017
  • Superresolution Full-polarimetric Imaging for Radio Interferometry with Sparse Modeling 2017
  • Time Domain Filtering of Resolved Images of Sgr A* 2017
  • Asymmetric structure in Sgr A* at 3 mm from closure phase measurements with VLBA, GBT and LMT 2016
  • Erratum: “The Proper Motion of the Galactic Center Pulsar Relative to Sagittarius A*” (2015, ApJ, 798, 120) 2016
  • High-resolution Linear Polarimetric Imaging for the Event Horizon Telescope 2016
  • Imaging an Event Horizon: Mitigation of Source Variability of Sagittarius A* 2016
  • Modeling Seven Years of Event Horizon Telescope Observations with Radiatively Inefficient Accretion Flow Models 2016
  • Persistent Asymmetric Structure of Sagittarius A* on Event Horizon Scales 2016
  • Testing General Relativity with Accretion-Flow Imaging of Sgr A* 2016
  • Testing General Relativity with the Shadow Size of Sgr A* 2016
  • 230 GHz VLBI Observations of M87: Event-horizon-scale Structure during an Enhanced Very-high- energy -Ray State in 2012 2015
  • Event Horizon Telescope Evidence for Alignment of the Black Hole in the Center of the Milky Way with the Inner Stellar Disk 2015
  • First 230 GHz VLBI fringes on 3C 279 using the APEX Telescope 2015
  • Measuring the Direction and Angular Velocity of a Black Hole Accretion Disk via Lagged Interferometric Covariance 2015
  • R2DBE: A Wideband Digital Backend for the Event Horizon Telescope 2015
  • Resolved magnetic-field structure and variability near the event horizon of Sagittarius A* 2015
  • The Event Horizon of M87 2015
  • The Proper Motion of the Galactic Center Pulsar Relative to Sagittarius A* 2015
  • Imaging the Supermassive Black Hole Shadow and Jet Base of M87 with the Event Horizon Telescope 2014
  • Probing the Parsec-scale Accretion Flow of 3C 84 with Millimeter Wavelength Polarimetry 2014
  • Relative Astrometry of Compact Flaring Structures in Sgr A* with Polarimetric Very Long Baseline Interferometry 2014
  • Fine-scale Structure of the Quasar 3C 279 Measured with 1.3 mm Very Long Baseline Interferometry 2013
  • Jet-Launching Structure Resolved Near the Supermassive Black Hole in M87 2012
  • 1.3 mm Wavelength VLBI of Sagittarius A*: Detection of Time-variable Emission on Event Horizon Scales 2011
  • Estimating the Parameters of Sagittarius A*'s Accretion Flow Via Millimeter VLBI 2009
  • Event-horizon-scale structure in the supermassive black hole candidate at the Galactic Centre 2008

• conference paper

  • Direct Imaging of Super Massive Black Hole Shadow 2013

Other

Location

• Smithsonian Astrophysical Observatory  Academic Department