Kaufmanis Lecture: The Newest Extragalactic Mystery

Learn about the new mysterious cosmic phenomenon-Fast Radio Bursts-and the revolutionary new radio telescope that will soon enable astronomers worldwide to make major progress in understanding them. This lecture was presented by the Minnesota Institute for Astrophysics.

[@randallf2750]

Lecture starts at 8:40

[@ResurrectingJiriki]

F

Love this comment! Instead of complaining, making life better for all. Kudos.

[@JimSky]

There is a perfectly understandable reason that the microwave oven produces a spectrogram that exhibits the trailing signature of dispersion. The microwave oven is powerful radio frequency oscillator. When the door is opened an emergency cutoff occurs to the electrical power. The sudden removal of power does not produce an instantaneous halt to the oscillations, which store energy in the resonant components and take a few milliseconds to quit "ringing". As the energy is the system dissipates, the frequency decreases, thus mocking the late arrival of lower frequencies seen in astronomical dispersion of radio waves. Think of a civil defense alert siren when it is turned off. The sound frequency lowers as the spinning horns come to a halt.

[@kihmjones8770]

Warp signatures / stargate termini

[@garethhutchings4045]

Excellent. Thankyou for presenting the lecture and posting it.

[@Stadtpark90]

1:08:24 „It’s just money!“ - I love how excited she gets! - Would be nice if this was standard: once you figured out how to do something, just do it half a dozen times all over the earth to get some more data, multiply the expertise, and with a little luck, multiply the science. 1:21:29 I hope she comes back in a few years time and tells the rest of the story when they‘ve figured it all out!

[@WildBillCox13]

Contains a great primer on radio telescopy. Nice stuff and thanks for posting. I linked it around.

[@smooth_sundaes5172]

Maybe it's far away aliens microwaving their lunch

[@justinsmith2363]

17:45 The 400ms sweep time (between +-1.2 - 1.5 Ghz) proves that the source is definitively extragalactic. 35.01 A plot of a Peryton made by a microwave oven in the visitor's centre. Note the same sweep time over the same range (1500MHz=1.5 GHz). Therefore we have conclusively proved that the Parkes visitor's centre is located far outside our galaxy.

[@naimulhaq9626]

400 ms is quite a time to obtain a spectral analysis, which should be able to provide information, what causes the bursts. Why does it prove so difficult?

[@slmm2jowens]

Thank you for this excellent talk.

[@ChaiyaphumIsan]

Thank you for your excellent lecture on FRB's, professor.

[@zoozolplexOne]

Cool !!!

[@Lunar_lunaa]

If you enjoyed this lecture, she did a wonderful talk on pulsars that’s available on KZbin! (Perimeter Institute)

[@AspergersversusNeurotypicals]

The speaker is Victoria Kaspi. needs to be in title

[@ulfnowotny01]

Excellent lecture! Thank you!

[@stevefromsaskatoon830]

Well that was a pleasant talk

[@ResurrectingJiriki]

Is there a reason or a 'unwritten law' for not naming the speaker in a talk in the title and/or description?

[@ResurrectingJiriki]

Also, what a simply great presentation Dr. Victoria Kaspi! (listing to you speak I think I can make an educated guess on how to pronounce you last name, ;-) )

[@Yatukih_001]

I subscribed to learn more about astrophysics!!

[@wordprocessbrian4497]

If the white light is considered one source then it is entangled. Inside the prism, the shortest distance gives energy to the longest , delaying its arrival at the exterior. It only works one way, you can not speed up, only slow down.

[@patriciavyce1993]

Why ?

[@reefsroost696]

@@patriciavyce1993 Energy?

[@elijaguy]

prof vicky kaspi. great. thank you!

[@educatedmanholecoverbyrich8890]

By the way, this lecture is 3 years out of date.

[@ikaeksen]

50:47 maybe the source of the fast radio burst have its origin really comming from that area where we see a galaxy inside a cross right up on this image??? It looks as if it sends out something in trajectories arround itself....can clearly see them on that image.

Prof Kaspi is a G. Much respect.

[@katiekat4457]

Starts at 8:37. Ridiculously long intro but the lecture itself is great. Also very interesting and worth listening to.

[@matthuckabey007]

Read much?

[@naimulhaq9626]

If spectral line of hydrogen is found then the composition can be known. What's the problem?

[@matthuckabey007]

Spectral "LOYN" of hydrogen

[@svenkersten4465]

Consciousness is awareness of penetrating the potential/ material by its highest forms like word and touch and therefore the whole universe appears.

[@rickquest6385]

Why can't they take a picture in every direction and piece it together by the distance of the stars in order to show the Milky Way like they did with the Universe? I understand it would be an daunting task but it seems like it would work?

[@Irigoyen4]

Just wondering, can 1.4 MHz FRBs be extrapolated from red shifted 400-800 kHz data? (Apologies if my units are wrong)

[@TheShadowinflight]

Why those are frbs are starships going into warp....duhhh

[@Electrontm]

Great talk!

[@rd9831]

Light travels at a constant speed in a vacuum. But space is not a vacuum. !!!!

[@jasonb1356]

After all that has to happen for this to occur, could it be a white dwarf (or pulsar) in binary orbit with a red giant? Pulses would not have a predictable sequence as surface temperature would need variant times to achieve critical, based on elements "pulled" from the red giant. This would be relative to elliptical distance. Yet, due to density, surface temperatures of the suspect star would remain very high. This means the variation 600-900 megahertz would tell the observer what element is being fused, and the makeup of its bianary partner. If this is true, one may be able to tell some very specific elemental properties, based on density of suspect star over temperature with relationship to megahertz of pulse.

[@joemarz2264]

1:11:30 [Vicky Kaspi] "I feel very confident that this is not aliens..." [Alien at 3B light-years away] "Hold my beer..!"

[@RapperBC]

"I feel confident that the aliens have not invented beer..."

[@JustNews351]

How they "observed the same sky region" for Arecibo when antenna is built into the ground... I guess each day at the same time or you can somehow manipulate with sky region to watch... ???

[@garethbull2226]

The Arecibo main dish reflects radio waves up into a smaller collector that hangs from cables above the main dish. By adjusting those cables they move the radio collector, which allows them to aim which part of the sky they collect signals from but even with that adjustment for the radio collector there is a limit to how long they can aim at a specific location in the sky, so yes, mostly they have to wait a day before they can look at the same area of the sky. A telescope like Arecibo or CHIME in Canada cannot be turned and aimed like other radio telescopes such as Parkes in Australia or the VLA in New Mexico.

[@JustNews351]

@@garethbull2226 Thank you very much for this rich answer. This topic is "super-interesting". Best of luck to you!

[@frankdimeglio8216]

@@JustNews351 WHY AND HOW ELECTROMAGNETISM/energy is gravity, AS E=MC2 IS NECESSARILY F=MA: TIME DILATION ULTIMATELY proves ON BALANCE that E=mC2 IS F=ma, AS ELECTROMAGNETISM/energy is gravity. INDEED, TIME is NECESSARILY possible/potential AND actual IN BALANCE; AS E=mc2 is F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravity IS ELECTROMAGNETISM/energy. E=mc2 is F=ma. This NECESSARILY represents, INVOLVES, AND DESCRIBES what is possible/potential AND actual IN BALANCE, AS ELECTROMAGNETISM/energy is gravity. The stars AND PLANETS are POINTS in the night sky, AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. (Energy has/involves GRAVITY, AND ENERGY has/involves inertia/INERTIAL RESISTANCE.) Very importantly, outer "space" involves full inertia; AND it is fully invisible AND black. BALANCE AND completeness go hand in hand. It ALL CLEARLY makes perfect sense. Great !!! Gravitational force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE, AS E=mc2 is F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS E=mc2 is F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. "Mass"/ENERGY IS GRAVITY. ELECTROMAGNETISM/energy is gravity. The Earth AND the Sun are CLEARLY E=MC2 and F=ma IN BALANCE, AS ELECTROMAGNETISM/energy is gravity. The stars AND PLANETS are POINTS in the night sky. GREAT !! By Frank DiMeglio

[@shaunoakes9719]

So sad the Arecibo Observatory collapsed 😞

[@ammophila1]

Perytons explanation, on lunch time Microwave oven premature door opening its obscures me, why not see the same pattern in dinner or breakfast time?

[@virgilmccabe2828]

Probably because lunch is the only meal they need at work. I also hope that they have good meals for breakfast and dinner that don’t rely on microwave ovens

[@damienoneill1029]

FRBs are when u engage warp drives simples

[@yourstruely9896]

So the red shift can be caused by something else than the supposed expansion.

[@marcelgagnon5748]

Merci pour les sous-titres. C'est gentil de penser aux autres cultures.

[@Tim3ru]

Dwarf galaxies have the biggest, brightest and most massive stars... particular but probably irrelevant (:

[@halifkhalifahgreatshow8176]

Nice,informative.

[@goleshgolesh]

in regards to red shift/blue shift, how is it known that the color is not due to the chemical composition of the observed body?

[@stevefromsaskatoon830]

* God made Google....... now bust your ass !!

[@Mirandorl]

17:10 When the science department is forced to do a lecture for journalism undergrads

[@katiekat4457]

China built a radio telescope that is ridiculously huge compared to Puerto Rico and the other radio telescopes. Why aren’t they working with the Chinese scientists on that? It’s fairly new within the last 5-10 years and like I said I don’t remember exactly how much bigger it is but it’s like 2 or 3 times the size up the next sized radio telescope and has the newest technology for pointing to sources, etc. We are missing out by not working with them and it’s not because of political reasons. China doesn’t treat science like that. They are a collaborating science type country. What a waste and shame for not using it as a resource. It’s the best radio telescope by a large factor. I hope they decide to work with the Chinese on this.

[@schmeegil2240]

China will take everything and give nothing are you really thinking any different. I guess you haven't heard of Chinese scientists suddenly needing to go home and never being seen again.

[@reefsroost696]

@@schmeegil2240 👍

[@cajonjackie2075]

After viewing the entire video I've concluded that this low frequency burst is the sound, rather, the light of a star being born, a star of very very massive size, like the stars they believe were born during inflation, they were so massive the stars lasted a very short amount of time, went Nova and seeded the universe with the elements that were needed to create the universes first planets. I'm kidding with my certainty or their source but is it possible that at the edge of the observable universe there are still extraordinarily large hydrogen clouds creating stars much like those of the inflationary, both during(?) and post, period of the early universe? Could the bursts be the start-up noise of stars, not quite big enough, to complete ignition but are choking, flashing and gathering more and more hydrogen into themselves and will continue to flash, or Burst again and again until it's gathered enough hydrogen to obtain full ignition.

[@matthuckabey007]

Loyn... loyn.. not line, loyn.

[@Giganfan2k1]

Just watched a video about a possible FRB in the Milky Way. It looks like it came from a magnatar neutron star.

[@xxxsaraHelloxxx]

Let’s there be light✨

[@superalexgo]

19:40 TIL Markiplier is an astronomer

[@gypsycruiser]

These micro bursts are massive EM energy released when dark energy filaments reattach

[@epocaBB]

Alien industrial grade microwave ovens?

[@anthonypazana6105]

Maybe Aliens out there traveling through space use microwave ovens to heat their lunch and that is what you are picking up?????

[@shadetreader]

How to ruin any video: thank Raytheon

[@dusanvuckovic17]

is it blackhole vomit?

[@1OldWriter]

And thats what happens when you stick your finger in a light socket, a bad hair day.

[@yourstruely9896]

free electrons is a theory. so how do you know.. like she says all the time.

[@vanderdole02]

please please come to the point...

[@yourstruely9896]

The hard hats in portorico were not for nothing after all..

[@tnekkc]

"A long time ago in an oven far, far away..

[@gammaraygem]

You can not stack assumptions and then say you "know" something. We assumed the universe was homogenous, because it was the simplest model. We now have reason to think it is not that simple. The universe appears to be clumpy. So just extrapolating the amount of free electrons throughout the universe from a few pinpoint observations is pure speculation. If a particle physicist would use the scant amount of data they use in Cosmology, his findings would be laughed at. But then, he can create more data relatively easily.

[@virgilmccabe2828]

I guess you were in the restroom when she explained the map and how they were mapping the distribution of free electrons

[@virgilmccabe2828]

Still, it’s extrapolation on top of estimation but most of cosmology relies on this. I suppose it is better than a swag (scientific wild ass guess)

[@davidinfante6348]

Well fast radio bursts may be coming from the Multiverse these are inflationary burst of energy every time a new universe is born

[@seanthorton3054]

ROGUE AGENT EDO ENOT VIVEW

[@yourstruely9896]

So they discovered aliens using micowaves

[@theDyingAtheist]

Snow in MN? Imagine that.

[@patriciavyce1993]

The climate is cooler because we haven’t had as much air travel.Which is good in some ways. I hope people are preparing for the changes to come.Be wise Be strong Be prepared.🕊Love is...Think good thoughts...👍😊✌🏻💞

[@theDyingAtheist]

@@patriciavyce1993 I was trying to be funny when I left my comment 9 months ago. (I believe we were still traveling a lot back then) 😊✌🏻

[@nemliveproductions]

Type5 civilizations

[@danielkeirsteadsr6939]

Looks like God is making microwave popcorn.

[@educatedmanholecoverbyrich8890]

I'm not here to listen to 4 minutes of introduction. I gave up and switched off.

[@baldrbraa]

Uhh, umm, umm… I just can’t

[@stigrlarsen3822]

Let's move som eiron from south to east thats good for aur magnetic fields and lots of et, I hate magnetic fields earth move to slovly the on vay so,lets move et vith 3, vi already have move so many Billimilion of that stof of eiron so vi sun Finnish, 2 times so muts vi have moved thats better for the magnetic field, yes lets go.

[@vanderdole02]

10 minutes of blah blah

[@jbangz2023]

You do "Science" by what, speculation... applause, public funding pouring...

[@schmetterling4477]

We are primarily doing science by paying attention in school, first. You clearly missed that first step. ;-)

[@jacquelinebrunder2384]

These ideas are 30 years out of date. Disappointing.

[@vanderdole02]

8 minutes of blah blah you can skip..

[@thecatsman]

I wonder how an average journalist likes being spoken to like a small child.

[@reefsroost696]

The average journalist doesn't know he's being spoken to like a child.