Slashdot Mirror


Amateur Astronomer Spots Supernova Right As It Begins (gizmodo.com)

New submitter Rotten shares a report from Gizmodo: Amateur astronomer Victor Buso was testing his camera-telescope setup in Argentina back in September 2016, pointing his Newtonian telescope at a spiral galaxy called NGC613. He collected light from the galaxy for the next hour and a half, taking short exposures to keep out the Santa Fe city lights. When he looked at his images, he realized he'd captured a potential supernova -- an enormous flash of light an energy bursting off of a distant star. Buso took more data and informed Argentine observatories, who announced the outcome of their follow-up observations today: "the serendipitous discovery of a newly born, normal type IIb supernova," according to the paper published in Nature. Not only did this demonstrate the importance of amateur astronomy, but Buso's images also provided evidence of the brief initial shockwave from the supernova, a phenomenon that telescopes rarely capture, since they'd have to be looking at the exact right place in the sky at the right time. Buso didn't just discover a supernova, though. He also presented evidence for the "long-sought shock-breakout phase," as the scientists write, an explosion of energy theorized to emanate from a shock wave at the supernova's source. The researchers point out that it's hard to generalize from a single supernova.

52 comments

  1. Don't leave us in suspense! 4 and a half WHAT!? by wierd_w · · Score: 2

    Seriously, I know editing is hard and all, but can you please tell us-- Is this 4 and a half days, 4 and a half weeks, 4 and a half months, or 4 and a half years?

    1. Re:Don't leave us in suspense! 4 and a half WHAT!? by wierd_w · · Score: 2

      Nevermind-- I misread. Tiny assed phone displays, messin' with my myopia.

      I see it is one and half hours. Meh.

    2. Re:Don't leave us in suspense! 4 and a half WHAT!? by Hal_Porter · · Score: 0

      Don't mod up parent! Defend the honour of slashdot.org's wise and honourable volunteer moderators.

      Who do sterling work in, often difficult circumstances.

      --
      echo -e 'global _start\n _start:\n mov eax, 2\n int 80h\n jmp _start' > a.asm; nasm a.asm -f elf; ld a.o -o a;
    3. Re:Don't leave us in suspense! 4 and a half WHAT!? by Rakarra · · Score: 1

      Looks like your wikipedia link got cut off. Here is the actual article on Andromeda.
      Other than that, perfect post.

    4. Re:Don't leave us in suspense! 4 and a half WHAT!? by Anonymous Coward · · Score: 0

      Nevermind-- I misread. Tiny assed phone displays, messin' with my myopia.

      That would be your presbiopya. Shows your age. :)

  2. This is why I read Slashdot by FormOfActionBanana · · Score: 2

    "light an energy" should read, "light and energy" but what's a /. submission without an error introduced by the editor.

    Thanks for the nerd news. This made my day.

    --
    Take off every 'sig' !!
    1. Re:This is why I read Slashdot by FormOfActionBanana · · Score: 2

      This is also why I read slashdot :)

      --
      Take off every 'sig' !!
    2. Re:This is why I read Slashdot by Anonymous Coward · · Score: 0

      but what's a /. submission without an error introduced by the editor.

      A /. submission with an error copied directly from TFA?

  3. This should be looked into by Anonymous Coward · · Score: 2, Funny

    Is it even legal for ordinary citizens to snoop the skies like this? What if they happen to see something that, for the security of the public, should be kept secret? What if they were terrorists? It's time to put a stop to this, the safety of our children is at stake!

    1. Re:This should be looked into by umghhh · · Score: 1

      And some of the HW used in this has shockingly phallic shapes which is not what we want in our (through stupidity) enlightened times.

    2. Re:This should be looked into by PolygamousRanchKid+ · · Score: 4, Funny

      Is it even legal for ordinary citizens to snoop the skies like this?

      The copyrights to the sky are owned and licensed by the Disney Corporation.

      If you are looking at the sky without proper DRM, you are a pirate and will be shutdown by the MPAA using their FBI lackeys.

      --
      Schroedinger's Brexit: The UK is both in and out of the EU at the same time!
    3. Re: This should be looked into by alienmole · · Score: 3, Funny

      I always use a VPN when looking at the sky.

  4. Re:That's what she said by Chrisq · · Score: 4, Funny

    She called me a human super-nova

    Yes, one bang and you're finished

  5. Why donâ(TM)t we watch everything? by Anonymous Coward · · Score: 0

    In my naivety it seems that surely we must have enough technology to record largely everything in the sky all the time from space. Perhaps not at super amazing resolution, but surely to some degree?

    That statement regarding amateur astronomers being important to capture things like this makes me wonder why we should be relying on such things.

    Is it a cost thing? Perhaps thereâ(TM)s no will to do it?

    1. Re: Why donâ(TM)t we watch everything? by Anonymous Coward · · Score: 0

      Why don't you throw that iPhone of yours in the trash?

    2. Re:Why donâ(TM)t we watch everything? by Calydor · · Score: 1

      Your suggestion would lead to the equivalent of blurry Big Foot pictures of maybe-it-was astronomical phenomenon.

      --
      -=This sig has nothing to do with my comment. Move along now=-
    3. Re: Why donâ(TM)t we watch everything? by nick13245 · · Score: 4, Informative

      The sky is huge. Most supernovas we survive are going to be very far away and are not very bright from our point of view. Therefore you need a big telescope to collect enough light to see them. The bigger the telescope is, the more of a minimum magnification level youâ(TM)ll have. There for youâ(TM)ll only be able to see a small fraction of a percentage of the sky at a time. Projects that survey the entire sky (e.g. those that look for asteroids) can take several months with just one telescope. Most large ground based telescope installations are dedicated to various research projects, usually studying one area of the sky. Not all of them can operate all the time due to weather. Until we have a large array of telescopes in space, itâ(TM)s unlikely weâ(TM)ll be able to constantly monitor the entire sky at any magnitude level enough to catch one off events like this. So therefore, amateur astronomy is still important.

    4. Re:Why donâ(TM)t we watch everything? by stevelinton · · Score: 4, Informative

      There are a number of projects out there to develop specialised telescopes that will be able to take quite high resolution photos of unprecedentedly large areas of the sky at once, and big enough to gather enough light to show reasonably faint objects without needing too long an exposure. Look at the Large Synoptic Survey Telescope, for instance https://www.lsst.org/. This aims to photograph all of the "available" sky (it's in Chile, so it never sees the stars around the North celestial pole) every few nights for 10 years. There's lots of infomation on their site and in their papers, but a few numbers that jumped out at me: 8.4m primary mirror, 3.2 GPixel camera, 15 TB of data each night!

      Even this would have to get moderately lucky to see a supernova as young as this one, which was captured in it's first minutes or hours. It would also, ideally, need to identify what it was seeing almost instantly, so that it (or another telescope) could start a follow-up within seconds or minutes.

    5. Re:Why donâ(TM)t we watch everything? by rogoshen1 · · Score: 1

      in the history of astronomy, how many amazing things were discovered by 'amateurs' ?

  6. Re: Joke by Anonymous Coward · · Score: 0

    Ahh I get it, youâ(TM)re the punch line... because your life is a joke.

  7. Have an idea by Provocateur · · Score: 4, Funny

    Can we call it Buso Nova?

    --
    WARNING: Smartphones have side effects--most of them undocumented.
    1. Re: Have an idea by Anonymous Coward · · Score: 0

      Can we call it Buso Nova?

      Why? I assume there is a joke here. Can you explain it.

    2. Re: Have an idea by Chrisq · · Score: 1

      Can we call it Buso Nova?

      Why? I assume there is a joke here. Can you explain it.

      I think it's a pun on bossa nova.

    3. Re:Have an idea by sconeu · · Score: 2

      Only if we can blame it on the Buso Nova...

      --
      General Relativity: Space-time tells matter where to go; Matter tells space-time what shape to be.
    4. Re: Have an idea by Anonymous Coward · · Score: 0

      Can we call it Buso Nova?

      Why? I assume there is a joke here. Can you explain it.

      I think it's a pun on bossa nova.

      Which is stupid because Bossa Nova is a Brazilian music, and Buenos Aires is not the Brazilian capital.

  8. Re:That's what she said by Anonymous Coward · · Score: 0

    She called me a human super-nova

    Yes, one bang and you're finished

    And stuffed into a black hole afterwards...

  9. No. by Anonymous Coward · · Score: 1

    Given the closest star is 4.5 light years away, and this was supposedly a "distant star" I'd say he didn't capture it as it began. That explosion is hundreds or thousands or more years old, done and over. He saw the initial effects as they reached Earth maybe.

    No. That space-time event "happened" when it reached earth. That's how spacetime works: it's all in where you stand.

    Time doesn't really have meaning without space because you're just doing matrix transformations on distance measurements between points.

    He saw it as it began.

    1. Re:No. by Anonymous Coward · · Score: 0

      So if the sun for some reason goes dark, when around 6 minutes later we notice it, it really has happened only then? How is that compatible with the speed of light? Why does time lose its meaning over long distance?

    2. Re:No. by stevelinton · · Score: 1

      DIfferent observers would calculate different lengths of time (and distances in space) between the sun going dark and the last light from the Sun passing the Earth.
      In relativity, none of these observers is "special". All their calculations are equally correct. What they would agree on is the speed that that the light from the Sun was travelling at. So some might see the light taking 1 second to travel 300 000 km from the Sun to the Earth, others would see it taking about 8 minutes to travel 150 000 000 km (no one would see anything longer than that).

  10. Wait... neutrinos... by SeattleLawGuy · · Score: 2

    I vaguely remember astrophysicists being excited about neutrino detectors detecting supernovas before you see the explosion, because the neutrinos generated at the center of a supernova had so little mass that they made it through the star's densely packed matter much more quickly than the rest of the energy transmission. Yes, here it is... https://en.wikipedia.org/wiki/...

    --
    Real lawyers write in C++
    1. Re:Wait... neutrinos... by jfdavis668 · · Score: 3, Informative

      Yes, if the supernova is close enough that the increase in neutrinos is recognizable. The problem is, it doesn't give a very good direction. Basically somewhere off to the right. Someone at the detector also has to check the data before they can even determine the direction. Telescopes start searching for the supernova, but may take a few days to check all the galaxies in that direction before they find it. This guy had before and after images in his 1 1/2 hours of data.

  11. Question by NicknameUnavailable · · Score: 1

    I'm no expert in astronomy or digital image processing - but isn't there a technique for combining multiple lower resolution telescope images into a single high resolution image which is really reliable? What would the feasibility of taking a million of these tiny telescopes rigged with stepper motors for positioning to create a single virtual super-large aperture telescope? Would it be cheaper than the current best ground-based telescopes on the scale of ~100m in total cost?

    1. Re: Question by Anonymous Coward · · Score: 0

      That's how large professional scopes already work. Look at ESO's VLT or the large binocular telescope. It isn't easy nor cheap to combine the light from multiple telescopes in this way.

    2. Re:Question by jfdavis668 · · Score: 2

      Short answer, no. You would not get the angular resolution required unless you synchronize the data feeds. This is done to sub wavelengths of light. The reason is because the air moves. Its why they tend to be on high mountains, above as much air as possible. You have to have precise measurements to factor it out. They do build interferometers that work this way, but they have tunnels connecting them that are either vacuums or controlled environments. You would have to wait hours to days after a person enters one for the air to settle down before use. Other ones are digitally synchronized with custom wiring and atomic clocks. The length of the wires has to be measured to incredible precision to know the timing. It would cost far more to build one the way you suggest than the way they do it now.

    3. Re:Question by Anonymous Coward · · Score: 0

      I'm no expert in astronomy or digital image processing - but isn't there a technique for combining multiple lower resolution telescope images into a single high resolution image which is really reliable? What would the feasibility of taking a million of these tiny telescopes rigged with stepper motors for positioning to create a single virtual super-large aperture telescope? Would it be cheaper than the current best ground-based telescopes on the scale of ~100m in total cost?

      I have my own observations to do. There has to be some compensation for putting my 10 inch refractor on such net. And I won't be a beast of burden for the glory of the Ivory Tower.

    4. Re:Question by stevelinton · · Score: 1

      You can combine multiple mirrors within a single telescope, but you have to keep them aligned to enormous accuracy (50nm or so) so you still need a massive framework.

      You can combine multiple telescopes by actually steering the incoming light to a meeting point and interfering it, but it's incredibly hard to do. Everything needs to be super stable.

      You can't get (much) more detail by combining multiple digital images. You can get a bigger image, or a "deeper" image (one that shows fainter objects) but not a more detailed one.

  12. Re:That's what she said by tigersha · · Score: 1

    If his supernova goes bang close to her she is pretty much finished too

    --
    The dangers of excessive individualism are nothing compared to the oppressiveness of excessive collectivism
  13. Well, to be accurate, by Bartles · · Score: 0

    he spotted the supernova 67 million years after it began.

    1. Re:Well, to be accurate, by chuckugly · · Score: 1

      Depends literally on your point of view I reckon.

  14. Re:Why dont we watch everything? by edi_guy · · Score: 1
    The cost is not that prohibitive, the technology is already there. It's just what society deems important. In the US we deem 1.) entitlements - $1.5 trillion and 2.) war $600 billion) as our two biggest priorities. Perhaps followed by 3.) spending beyond our means - $310 billion in interest.

    NASA's budget is $20 billion.

  15. This Reads Funny by Anonymous Coward · · Score: 0

    This reads funny:

    "... the "long-sought shock-breakout phase," as the scientists write, an explosion of energy theorized to emanate from a shock wave at the supernova's source."

    Uh, isn't that pretty much the very definition of a "supernova"? And isn't a supernova even bigger and more bad-assed than a nova, thus making it "super"?

    I mean, how do you even have a supernova without an explosion of energy, a shock-breakout phase, and so forth? Suggesting that is "theorized" is a little like saying "we've seen millions of car crashes, but we wish to see the long-sought after 'car' that is theorized to be involved at the very beginning of the crash"!

    1. Re:This Reads Funny by stevelinton · · Score: 1

      This is about the details of how the explosion happens. A star is a pretty big thing and it does not all explode at once. The explosion starts pretty far in and has to somehow get through or past the outer layers of the star before we can see it. The details of how that happens are very unclear.

  16. New York Post is funny by Anonymous Coward · · Score: 0

    Just about everyone has the "million to one" quote in their articles - except New York Post which puts the odds at "ten million to one!"