Currently new #EventHorizonTelescope (#EHT) observations are happening. This is part of our enthusiastic and international team at the #IRAM 30m-telescope on Pico Veleta in Spain: Lott Frans (Univ Namibia), Noemia La Bella (@Radboud_uni ) and Pablo Torne (IRAM). Weather on past night was fantastic😊.
#ICYMI: A recent #EHT image reveals strong magnetic fields spiraling from Sagittarius A*, the supermassive black hole at our galaxy’s center. These fields resemble those around the M87 galaxy’s black hole, suggesting commonality among black holes. A hidden jet in Sagittarius A* is also hinted at.
In polarized light, a side-by-side image of supermassive black holes M87* and Sagittarius A* reveals similar magnetic field structures. This suggests universal features governing how black holes feed and launch jets.
ALMA, as part of the Event Horizon Telescope, is unveiling a new image of our Milky Way's supermassive black hole, Sagittarius A*, in which strong magnetic fields can be seen…
The most exciting part is that this hints to a jet that would be hidden from our vantage point in our galaxy… but imagine that! We might be like M87, just at a smaller scale!
@IRAP#Seminar] this Thursday at 11am. Benjamin Crinquant, a young researcher at IRAP, will present the progress we have made in our knowledge of #BlackHoles: from the observations carried out by the #GRAVITY and #EventHorizonTelescope collaborations to the most recent models of the #magnetospheres and #coronae of black holes.
The brightness peak of the #ring around #M87's supermassive #blackhole has shifted 30 degrees counterclockwise in a year. This is shown by new images released by the #EventHorizonTelescope consortium.
News Alert: New image of the famous supermassive black hole in M87. The image was taken a year later and reveals the same rings size and shadow shape, confirming our results from 2019! The intensity maximum has rotated however. Not surprising, since matter rotates around a black hole. It is actually now, where you expect it to be.
It quacks like a BH, it looks like a BH, it is a BH!
New results from the #EventHorizonTelescope: Detection of event horizon scale circular polarization (CP) in the supermassive black hole in M87.
We can tell it is there, but we have a hard time imaging it. So, this is a first step only. Modeling suggests that this CP comes from Faraday conversion, which is not unexpected. The models support the paradigm that magnetic fields are dynamically important (and lead to the formation of jets).
Here's What it Would Take to See a Black Hole's Photon Ring
In 2019, the Event Horizon Telescope gave us the first-ever image of a black hole's event horizon, revealing the area around the heart of M87. The event horizon is the closest we've seen to a black hole, but not the closest we can see. That would be the photon ring, where light itself is pulled into orbit around the black hole. To build an observatory that can see the photon ring, we'll have to extend the Event Horizon Telescope to space, creating an even larger virtual telescope that might include the Earth and various Lagrange points.
Astronomers are Hoping the Event Horizon Telescope saw Pulsars Near the Milky Way's Supermassive Black Hole
The Event Horizon Telescope is a collection of radio telescopes across the globe that simultaneously gathered data about the Milky Way's supermassive black hole, acting as a single telescope the size of planet Earth. This revealed the galaxy's heart in unprecedented detail, helping to confirm the black hole's event horizon and prove some of Einstein's predictions about General Relativity. But if those observations happened to contain any signals from pulsars in the area, it would allow for even more precise measurements, as if there were atomic clocks orbiting Sgr A*.
On the left is a picture of the supermassive black hole located in the M87 galaxy, which was first released in 2019 by the EHT team. On the right is a fresh image of the same black hole, generated by the PRIMO algorithm using the identical data set (2023).