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Event-horizon-scale structure in the supermassive black hole candidate at the Galactic Centre
- S. Doeleman, J. Weintroub, D. Woody
- PhysicsNature
- 4 September 2008
TLDR
Jet-Launching Structure Resolved Near the Supermassive Black Hole in M87
- S. Doeleman, V. Fish, L. Ziurys
- PhysicsScience
- 19 October 2012
TLDR
First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
- K. Akiyama, A. Alberdi, L. Ziurys
- PhysicsThe Astrophysical Journal
- 10 April 2019
When surrounded by a transparent emission region, black holes are expected to reveal a dark shadow caused by gravitational light bending and photon capture at the event horizon. To image and study…
EVIDENCE FOR LOW BLACK HOLE SPIN AND PHYSICALLY MOTIVATED ACCRETION MODELS FROM MILLIMETER-VLBI OBSERVATIONS OF SAGITTARIUS A
- A. Broderick, V. Fish, S. Doeleman, Abraham Loeb Cita, Mit Haystack, Harvard
- Physics
- 11 November 2010
Millimeter very long baseline interferometry (mm-VLBI) provides the novel capacity to probe the emission region of a handful of supermassive black holes on sub-horizon scales. For Sagittarius A* (Sgr…
First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole
- K. Akiyama, A. Alberdi, P. Yamaguchi
- PhysicsThe Astrophysical Journal
- 10 April 2019
We present measurements of the properties of the central radio source in M87 using Event Horizon Telescope data obtained during the 2017 campaign. We develop and fit geometric crescent models…
1.3 mm Wavelength VLBI of Sagittarius A*: Detection of Time-variable Emission on Event Horizon Scales
- V. Fish, S. Doeleman, L. Ziurys
- Physics
- 10 November 2010
Sagittarius A*, the ~4 × 10^6 M_⊙ black hole candidate at the Galactic center, can be studied on Schwarzschild
radius scales with (sub)millimeter wavelength very long baseline interferometry (VLBI).…
The Murchison Widefield Array: Design Overview
- C. Lonsdale, R. Cappallo, Christopher L. Williams
- PhysicsProceedings of the IEEE
- 10 March 2009
The Murchison Widefield Array is a dipole-based aperture array synthesis telescope designed to operate in the 80-300 MHz frequency range. It is capable of a wide range of science investigations but…
First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring
- K. Akiyama, A. Alberdi, Shuo Zhang
- PhysicsThe Astrophysical Journal
- 10 April 2019
The Event Horizon Telescope (EHT) has mapped the central compact radio source of the elliptical galaxy M87 at 1.3 mm with unprecedented angular resolution. Here we consider the physical implications…
DETECTING FLARING STRUCTURES IN SAGITTARIUS A* WITH HIGH-FREQUENCY VLBI
- S. Doeleman, V. Fish, H. F. Astrophysics
- Physics
- 19 September 2008
The super-massive black hole candidate, Sagittarius A*, exhibits variability from radio to X-ray wavelengths on timescales that correspond to < 10 Schwarzschild radii. We survey the potential of…
The Proper Motion of the Galactic Center Pulsar Relative to Sagittarius A
We measure the proper motion of the pulsar PSR J1745-2900 relative to the Galactic center massive black hole, Sgr A*, using the Very Long Baseline Array (VLBA). The pulsar has a transverse velocity…
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