News

Principal Component Analysis illustration, adapted from Medeiros et al. 2018.

Planning for images of a black hole: New image analysis tools presented in an article in AAS Nova

September 27, 2018
The EHT is closer than ever to its goal, as the project continues to increase its resolving power and sensitivity as more telescopes join the system. Another important aspect of this project exists, however: the ability to analyze and characterize the images it produces in a meaningful way. Recently, a team of scientists led by Lia Medeiros (University of Arizona, University of California Santa Barbara) has demonstrated that a novel approach — principal component analysis — may be a useful tool in this process. Learn more about it in... Read more about Planning for images of a black hole: New image analysis tools presented in an article in AAS Nova
Artistic Impression of a a black hole. Credit: World Science Festival

World Science Festival: shedding new light on the current state of the art and the future of black hole research

August 28, 2018
At World Science Festival in New York, Andrea Ghez of UCLA, Vicky Kalogera of Northwestern University, and Shep Doeleman and Cumrun Vafa of Harvard University, shed new light on the current state of the art and the future of black hole research in a panel hosted by physicist and author Brian Greene: ... Read more about World Science Festival: shedding new light on the current state of the art and the future of black hole research
The Greenland Telescope

Greenland Telescope, the only submillimeter-wave astronomical observatory in the Arctic Circle, opens for science operations

May 30, 2018
To study the most extreme objects in the Universe, astronomers sometimes have to go to extreme places themselves. Taking advantage of the excellent atmospheric conditions in Greenland, the Institute of Astronomy and Astrophysics (ASIAA) of Academia Sinica in Taiwan, and the Harvard-Smithsonian Center for Astrophysics in the USA, collaborated to build the Greenland Telescope... Read more about Greenland Telescope, the only submillimeter-wave astronomical observatory in the Arctic Circle, opens for science operations
Two simple models for Sgr A* emission.

A global array of telescopes, including APEX for the first time, reveals the finest details so far in Sgr A* in a newly published study

May 26, 2018

Results based on data obtained with the 4-station Event Horizon Telescope back in 2013 were published in a peer-reviewed journal, showing tantalizing, but not yet conclusive, structure in Sgr A* on the scale of about 3 Schwarzschild radii of the black hole. This was the first time that the APEX telescope joined the EHT array as the first mm-wave Very Long Baseline Array (VLBI) station in the southern hemisphere. Read more about the new findings in this press release...

Read more about A global array of telescopes, including APEX for the first time, reveals the finest details so far in Sgr A* in a newly published study
Comparison of simulated Einsteinian and dilaton black hole images.

Can we tell Einsteinian black holes apart from non-Einsteinian? -- New insights from Goethe University Frankfurt supercomputer simulations

April 18, 2018
Theoretical astrophysicists at Goethe University Frankfurt, and members of the EHT collaboration, shed new light on this question by computing simulated images of hot gas feeding non-Einsteinian black holes. While at present it is hard to tell apart a "dilaton" black hole from a standard Einsteinian one, it may be possible with future observations employing the extended and improved EHT array. Read the original story released by the ... Read more about Can we tell Einsteinian black holes apart from non-Einsteinian? -- New insights from Goethe University Frankfurt supercomputer simulations
Eastern part of the 2018 EHT array.

In a new Physics Today article, EHT members Özel and Psaltis discuss the nature and appearance of black holes

April 16, 2018
In a new Physics Today article, EHT members and professors at the University of Arizona, Feryal Özel and Dimitrios Psaltis, discuss the nature of black holes and their appearance in a very long baseline interferometry (VLBI) experiment, such as the Event Horizon Telescope: https://physicstoday.scitation.org/doi/10.1063/PT.3.3906 Read more about In a new Physics Today article, EHT members Özel and Psaltis discuss the nature and appearance of black holes
50 years of VLBI

50th Anniversary of Transatlantic Very Long Baseline Interferometry

April 5, 2018

This week we mark 50 years since the first transatlantic very long baseline interferometry (VLBI) experiment. In April 1968, a historic event took place involving MIT Haystack Observatory in Westford, Massachusetts, and its counterpart at Onsala Space Observatory in Onsala, Sweden: the first transatlantic geodetic very long baseline interferometry (VLBI)...

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El Pais

An interview with the EHT member Michael Kramer in El País [in Spanish]

March 23, 2018

Michael Kramer, director en el Instituto Max Planck de Radioastronomía, Bonn, Alemania, dictó una conferencia en en la fundación BBVA en Madrid, España. En la entrevista para El País, Kramer explica los últimos avances sobre agujeros negros supermasivos, púlsares y los esfuerzos para obtener una imagen del horizonte de sucesos con una red mundial de radiotelescopios: el Event Horizon Telescope, colaboración de la que él es miembro: ...

Read more about An interview with the EHT member Michael Kramer in El País [in Spanish]