We waited years for this Black hole photo???

Discussion in 'Science and Technology' started by Vanilla Gorilla, Apr 10, 2019.

  1. Dude111

    Dude111 An Awesome Dude HipForums Supporter

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    Yes well Nasa is mainstream garbage,they wont ever show anything really revealing to the public!!
     
  2. guerillabedlam

    guerillabedlam _|=|-|=|_

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    It appears that it's towards Katie Bouman, who @Meliai posted pics of earlier in this thread.

    I'm pretty sure this is the github file for the imaging code. You can look at commited by to see who authored code.

    achael/eht-imaging

    You can see it was a collaborative effort so in the way the media portrayed her as being all alone on it, I could understand how it might have irked some testy individuals. Although attempting to give others shine by tearing her down is not a good approach. She is clearly an integral part of the project and she was credited with algorithm(s) specifically.
     
    Last edited: Apr 14, 2019
    Asmodean and soulcompromise like this.
  3. I'minmyunderwear

    I'minmyunderwear Newbie

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    i wish it was accurate. there are so many people i want to see naked, yet it so rarely happens.
     
  4. Asmodean

    Asmodean Slo motion rider

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    Well yeah, but to be fair to you everything is mainstream garbage, except processed food items from the 80s and pre-90s pop culture.
     
  5. Vanilla Gorilla

    Vanilla Gorilla Go Ape

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    We had a similar discussion with NASA getting involved in Climate Change Science.

    The branding still persists from the 80s when NASA was over everyrhing. People still just hear the acronym NASA and just assume NASA is taking the lead. Or it just has to be something about Space and they will just assume NASA is in charge

    The funding page for EHT:

    Funding Support

    NASA had very little to do with this project, it seems the only contribution was one measely grant for one of the 8 telescopes.

    MIT seemed to be the ones that do most of the number crunching, and a lot of contributions from organizations in asia.

    He is right about one thing, specifics about the project dont seem to be easily available to the public, especially imaging processing
     
  6. Meliai

    Meliai Banned

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  7. kushkush

    kushkush Here on loan...

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  8. egger

    egger Member

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  9. egger

    egger Member

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    An article that summarizes interferometry techniques that utilize velocity and spatial resolution to identify protoplanetary masses.


    Trio of Infant Planets Discovered around Newborn Star
    New technique could find some of the youngest planets in our galaxy

    Summary: Two independent teams of astronomers have uncovered convincing evidence that three young planets are in orbit around an infant star known as HD 163296. Using a new planet-finding strategy, the astronomers identified three discrete disturbances in a young star’s gas-filled disk: the strongest evidence yet that newly formed planets are in orbit there.

    Trio of Infant Planets Discovered around Newborn Star - National Radio Astronomy Observatory

    excerpt:

    "“The precision is mind boggling,” said coauthor Til Birnstiel of the University Observatory of Munich. In a system where gas rotates at about 5 kilometers per second, ALMA detected velocity changes as small as a few meters per second. “This allows us to find very small deviations from the expected normal rotation in a disk,” Teague said. Planets change the density of the gas near their orbits, which changes the gas’s pressure, inducing these corresponding changes in velocity.

    “We compared the observations with computer models to show that the observed flows fit beautifully with predictions for the flow pattern around a newborn planet a few times the mass of Jupiter,” said coauthor Daniel Price of Monash University."


    [​IMG]

    [​IMG]
     
    Last edited: Jun 4, 2019
    soulcompromise likes this.
  10. Vanilla Gorilla

    Vanilla Gorilla Go Ape

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    Still, not an actual photo
     
  11. Irminsul

    Irminsul Valkyrie

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    Yep, back to see what we want to see from observations. :p
     
  12. Asmodean

    Asmodean Slo motion rider

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    Why is this such a big deal to you? Has it been proposed as such in your neck of the woods or something? I mean nobody is arguing otherwise as far as I know
     
  13. Vanilla Gorilla

    Vanilla Gorilla Go Ape

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    Ok, but do you or are most people going to understand what they are looking at with the "photo" of HD 163296 egger posted above

    The scientists do their work, publish a paper, never make the claim they are certain there are three planets there.

    Yet even on a NRAO website it still somehow gets muted into "Trio of infant planets around a new star"


    What you are really looking at is a computer simulation of composite data from high frequency radio waves from the emission of only carbon monoxide from that star and its surrounds, again the resolution isnt good enough to tell us anything and its only even assumed to be planets based on the assummption that nothing else could make the rings rotate at certain speeds, which is hardly conclusive. Photo isnt even a composite of all the radio waves coming from the star
     
  14. Asmodean

    Asmodean Slo motion rider

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    Yes, we have been over this already. It isn't about the comprised image itself but what it represents. You act like nobody is aware of or understands that.
     
  15. egger

    egger Member

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    Scientists spot light behind a black hole for the first time | Engadget

    excerpt:

    "While studying the bright flares of x-rays emanating from the black hole, a feature known as the corona, researchers also witnessed fainter flashes of light. These were the "luminous echoes" of of the flares bouncing off the gas behind the black hole. This phenomena was first predicted by Einstein in his theory of relativity published in 1916.

    “Any light that goes into that black hole doesn’t come out, so we shouldn’t be able to see anything that’s behind the black hole," Wilkins explained. “The reason we can see that is because that black hole is warping space, bending light and twisting magnetic fields around itself.”

    The supermassive black hole is 10 million times as massive as our Sun and located in the centre of a nearby spiral galaxy called I Zwicky 1. An international group of scientists witnessed the echoes using the European Space Agency's XMM-Newton and NASA’s NuSTAR space telescopes. Their findings were published in the journal Nature."


    [​IMG]
     
    Last edited: Mar 18, 2022
  16. egger

    egger Member

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    https://phys.org/news/2018-07-gravity-relativity-galactic-centre-massive.html

    excerpt:

    "These extremely precise measurements were made by an international team led by Reinhard Genzel of the Max Planck Institute for Extraterrestrial Physics (MPE) in Garching, Germany, in conjunction with collaborators around the world, at the Paris Observatory–PSL, the Université Grenoble Alpes, CNRS, the Max Planck Institute for Astronomy, the University of Cologne, the Portuguese CENTRA – Centro de Astrofisica e Gravitação and ESO. The observations are the culmination of a 26-year series of ever-more-precise observations of the centre of the Milky Way using ESO instruments.

    "This is the second time that we have observed the close passage of S2 around the black hole in our galactic centre. But this time, because of much improved instrumentation, we were able to observe the star with unprecedented resolution," explains Genzel. "We have been preparing intensely for this event over several years, as we wanted to make the most of this unique opportunity to observe general relativistic effects."

    The new measurements clearly reveal an effect called gravitational redshift. Light from the star is stretched to longer wavelengths by the very strong gravitational field of the black hole. And the change in the wavelength of light from S2 agrees precisely with that predicted by Einstein's theory of general relativity. This is the first time that this deviation from the predictions of the simpler Newtonian theory of gravity has been observed in the motion of a star around a supermassive black hole."
     
  17. egger

    egger Member

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    10 Deep Lessons From Our First Image Of A Black Hole's Event Horizon
    Ethan Siegel, Senior Contributor
    Apr 11, 2019, 02:00am EDT

    10 Deep Lessons From Our First Image Of A Black Hole's Event Horizon

    excerpt:

    "The story of the Event Horizon Telescope is a remarkable example of high-risk, high-reward science. During the 2009 decadal review, their ambitious proposal declared that there would be an image of a black hole by the end of the 2010s. A decade later, we actually have it. That's an incredible achievement.

    It relied on computational advances, the construction and integration of a slew of radio telescope facilities, and the cooperation of the international community. Atomic clocks, new computers, correlators that could link up different observatories, and many other new technologies needed to be inserted into every one of the stations. You needed to get permission. And funding. And testing time. And, beyond that, permission to observe on all the different telescopes simultaneously."
     

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