Discover and read the best of Twitter Threads about #ehtblackhole
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A year ago today, we unveiled the M87 #BlackHole image by @ehtelescope! We were so proud to finally share our hard work (by 300+ scientists & engineers) with the rest of the world! Let me tell you a little bit about the crazy journey to get here
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#OTD #BlackHole1year 🥳
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#OTD #BlackHole1year 🥳
@ehtelescope uses the technique of very long baseline interferometry to achieve the resolution necessary to see a black hole 55 million light-years away! We synchronized 📡📡 around the world, and synthesized a virtual telescope the size of Earth!
cr. @TheNRAO
cr. @TheNRAO
The possibility to see the shadow of a black hole with VLBI was first put forward by my advisor, @hfalcke, back in 2000. At just the right radio wavelength, the gas flow around the black hole would be thin enough to peer down into the darkness!
cr. Falcke, Melia, Agol 2000
cr. Falcke, Melia, Agol 2000
Let's unwrap another question we often get about the @ehtelescope 's #EHTblackhole image: Why doesn't the picture look like the black hole simulation in the movie Interstellar? Let's digest the differences one by one.
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cr. EHT/Paramount Pictures
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cr. EHT/Paramount Pictures
The streak across the Interstellar 📸 is nowhere to be seen in ours. We are looking at the #M87blackhole almost 'straight down the barrel', and in Interstellar we look at it from the side and see the disk of matter, as shown here!
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cr. @jordydavelaar @thomasbronzwaer Z. Younsi
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cr. @jordydavelaar @thomasbronzwaer Z. Younsi
Our #EHTblackhole 📸 is also not fully symmetrical. It is brighter on the bottom from its slight inclination! The radiating gas is moving very fast as it orbits the BH, so it appears brighter as it moves toward us, and dimmer when it moves away: this is the Doppler effect!
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In honor of the Second International Day of Light, here are some recent light-focused #longreads from Physics Today #IDL2019
Quantitative phase imaging, which combines the principles of interferometry, holography, and microscopy, has emerged as a unique tool for live-cell and tissue imaging doi.org/10.1063/PT.3.3… #IDL2019
Microscopy without lenses: New imaging devices provide cost-effective, compact, and wide-field microscopy solutions for fieldwork and global health applications doi.org/10.1063/PT.3.3… #IDL2019
I'm literally abt to hop on a plane for the rest of the day, but here are a few things that make this #EHTBlackHole press release monumental to me from the perspective of an astrophysicist who studies active black holes.
1. It's still true that we can't *see* a black hole. What sight-abled folx are seeing in this image is the shadow of the black hole (what I typically call "SOS" signals from the material about to fall onto it). This process of material infall onto a black hole is called accretion
2. We've observed black holes for decades using the fact that infalling matter releases copious amounts of radiation (light) before crossing the event horizon. Black holes dominate high energy light like X-rays bc of accretion. This is a composite image of M87. @NASAHubble
Scientific papers related to the first image of a supermassive blackhole in Messier 87 @ehtelescope @gtmlmt_oficial @inaoe_mx #EHTBlackHole #EHT #BlackHole (thread)
1. First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
iopscience.iop.org/article/10.384…
1. First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
iopscience.iop.org/article/10.384…
La zone brillante sous la tache noire centrale, le trou noir, indique que le trou noir est en rotation, ou que de la matière est en rotation autour du trou noir, ou que les deux sont en rotation. #EHT
Voici les images simulées du trou noir central de la galaxie M87 et l'image observée et dévoilée aujourd'hui. Grâce à ces simulations et leur cohérence avec la réalité observée, on peut en apprendre beaucoup sur la physique de ce trou noir.
Il est fascinant de comparer l'image obtenue du trou noir central de M87 avec la 1ère simulation de l'apparence d'un trou noir par Jean-Pierre Luminet et le trou noir Gargantua du film Interstellar que le prix Nobel de Physique 2017 Kip Thorne a aidé à représenter.
Una imagen histórica. Así es la primera fotografía de un agujero negro. #blackhole
Este agujero negro está situado a 55 millones de años luz de la Tierra y es 6.500 millones de veces más masivo que el Sol. #EHTBlackHole
Está en el centro de Messier 87, una gigantesca galaxia en el cercano cúmulo de galaxias Virgo. #EHTBlackHole
@PressClubDC Some pre-announcement reading: Dimitrios Psaltis and @feryal_ozel on how @ehtelescope works its magic, and what we can hope to learn doi.org/10.1063/PT.3.3…
@PressClubDC @feryal_ozel @ehtelescope And how far we’ve come from 1971, when John Wheeler and Remo Ruffini introduced Physics Today readers to the concept of real-life black holes doi.org/10.1063/1.3120…
In few minutes, astronomers across the globe will hold six major press conferences simultaneously to announce the first results of the Event Horizon Telescope (EHT), which was designed precisely for that purpose ow.ly/bSMf30ompQi. Watch LIVE: ow.ly/G0mT30onYFi
More about the Event Horizon Telescope, an international collaboration aiming to capture the first image of a black hole by creating a virtual Earth-sized telescope eventhorizontelescope.org
Bugün akşam üstü açıklanacak olan Karadelik araştırmasının sonucunun “Arkadaşlar, Olay Ufku’nda mahsur kalan Klara’yı bulduk” olmasını çok isteyenler buraya gelsin...
#EHTblackhole #HeecheeSaga
#EHTblackhole #HeecheeSaga
Frederik Pohl’un, aslında 6 ciltlik ama ne yazık ki ülkemizde sadece 3 cildi yayınlanan Hiçi Destanı serisi, bana göre Kara Delikler ve Event Horison üzerine yazılmış en müthiş bilim kurgu romanıdır.
Tüm kitapları çok şükür hiç kaptırmadım kimseye. Açıklama yapılacağını @umutayildiz dan duyduğumdan beri bir daha okudum ve bir kez daha hayran kaldım Pohl’a.
🔭HOY ES EL DÍA: a las 15.07 se revelarán datos pioneros sobre uno de los objetos más misteriosos del universo: los agujeros negros.
El @CSIC acoge la presentación de los resultados del @ehtelescope.
Podrás seguirlo en directo aquí ➡️directo.csic.es/emision/ruedad… #EHTblackhole
El @CSIC acoge la presentación de los resultados del @ehtelescope.
Podrás seguirlo en directo aquí ➡️directo.csic.es/emision/ruedad… #EHTblackhole
Seis ruedas de prensa retransmitirán en directo por todo el planeta este hallazgo pionero, en el que han participado 200 investigadores. El EHT es un telescopio de escala planetaria, con ocho radiotelescopios distribuidos por todo el globo #EHTBlackHole
➡️eventhorizontelescope.org
➡️eventhorizontelescope.org
Desde Madrid hablarán los investigadores José Luis Gómez y Antxon Alberdi, del @iaaucc ; Iván Martí, del @IGNSpain ; Miguel Sánchez, del Instituto de Radioastronomía Milimétrica; y Rebecca Azulay, de la @UV_EG 🔭
Podrás seguirlo en directo aquí ➡️directo.csic.es/emision/ruedad… …
Podrás seguirlo en directo aquí ➡️directo.csic.es/emision/ruedad… …
📣 🚨 📣 A major announcement is expected tomorrow from the Event Horizon Telescope @ehtelescope #EHTblackhole [thread 👇🏼👇🏼👇🏼]
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The @ehtelescope is not just one, but eight telescopes stationed across the globe to create a huge virtual observatory - big enough to capture the first ever details of the black hole at the centre of the Milky Way...
(The @ehtelescope is so big, in fact, that a typical night of observations will yield about as much data as a year’s worth of experiments at the Large Hadron Collider.) 🤯
We hit the max limit of posts to the previous twitter thread on @ehtelescope ... so do read that first and then follow us here ...
How the gas circles around 2 fall into the BH, the reason why our galactic #EHTBlackHole is weaker than other of similar mass and why huge relativistic jets launched by BH like in M87 are all not well know. @ehtelescope images should answer some of them eventhorizontelescope.org/science
@ehtelescope has added 3 new telescopes now, including one in Greenland! This new network can make more images with even more magnification now. We have seen flares from our BH when objects fall into it and hope to image it the next time it happens businessinsider.in/A-mind-bogglin…
The Event Horizon Telescope will be announcing its results at 6.30 pm IST on 10th April. The @ehtelescope is trying to image the shadow of the supermassive black hole at the centre for our Milky Way, so this is going to be big news indeed! This is a thread on the #EHTBlackHole
You can watch the press conference live at nsf.gov/news/special_r… and
. Press note on #EHTBlackHole at nsf.gov/news/news_summ… & eso.org/public/announc…. Why are we all excited about this? What will the @ehtelescope announce? How can we image a black hole?
. Press note on #EHTBlackHole at nsf.gov/news/news_summ… & eso.org/public/announc…. Why are we all excited about this? What will the @ehtelescope announce? How can we image a black hole?
Will they show us a blurry image of #EHTBlackHole where we can't make out anything, like xkcd.com/2133/, or something that will make us gasp in awe, like bbc.com/news/science-e…? Follow this thread to figure out the why, how and what ...
Wow that's the latest in innovative and unique ways to do #scicomm and raise awareness about #ClimateChange! :)
