Astronomers have discovered a super-fast star system that breaks current physics models

[Xyphos]

http://www.sciencealert.com/astronomers-have-discovered-a-hyper-velocity-binary-star-that-breaks-current-physics-models

[insert_name]

5 minutes ago, Xyphos said:

http://www.sciencealert.com/astronomers-have-discovered-a-hyper-velocity-binary-star-that-breaks-current-physics-models

that site seems sketchey, I wouldn't trust it

[Xyphos]

1 hour ago, insert_name said:

that site seems sketchey, I wouldn't trust it

you're right, the article looks like it was written by an under-achieving community-college student in a democratic controlled society.
but if there's any truth in there, it's worth investigating.

Edited April 13, 2016 by Xyphos

[Spaceception]

3 hours ago, insert_name said:

that site seems sketchey, I wouldn't trust it

Fraser Cain tweeted it, so it might be legit.

[Kryten]

Here's the actual paper; http://arxiv.org/abs/1601.05806

And a write-up by Anatoly Zak on this RadioAstron operations, including this discovery; http://www.popularmechanics.com/space/deep-space/a20351/quasar-temperature/

[NovaSilisko]

"Breaks current physics models" is hyperbolic nonsense. No laws of physics are being violated, we just don't know how the system formed. Big difference.

Edit: Hold on, now that Kryten's posted, what are we even referring to? Are we talking about a hypervelocity star or a quasar? Both? I don't see a mention of quasars in the OP's link.

Edited April 13, 2016 by NovaSilisko

[Steel]

4 minutes ago, Kryten said:

Here's the actual paper; http://arxiv.org/abs/1601.05806

And a write-up by Anatoly Zak on this RadioAstron operations, including this discovery; http://www.popularmechanics.com/space/deep-space/a20351/quasar-temperature/

Yeah that's the wrong paper I'm afraid, this is the one you want.

Edited April 13, 2016 by Steel

[NovaSilisko]

Here, for the record, is the paper that the OP's story refers to http://iopscience.iop.org/article/10.3847/2041-8205/821/1/L13/meta

Edited April 13, 2016 by NovaSilisko

[Kryten]

11 minutes ago, Steel said:

Yeah that's the wrong paper I'm afraid, this is the one you want.

Sorry, skimmed the title and assumed it'd have been the thing in the news right now that actually breaks current physics models.

Edited April 13, 2016 by Kryten

[Findthepin1]

Well, this is perfectly explainable. The previous theory says that supermassive black holes like the one at the Milky Way's core can slingshot stars out of galaxies, right? This must be a binary system that was slingshotted out of its galaxy by the central black hole, and now it happens to be passing us by. The old theory about hypervelocity stars is probably sometimes correct. 

[Steel]

3 minutes ago, Findthepin1 said:

Well, this is perfectly explainable. The previous theory says that supermassive black holes like the one at the Milky Way's core can slingshot stars out of galaxies, right? This must be a binary system that was slingshotted out of its galaxy by the central black hole, and now it happens to be passing us by. The old theory about hypervelocity stars is probably sometimes correct. 

Except the authors are saying that due to it being a wide binary (I.e fairly distant from each other) the system would be too fragile for an international like that.

But other mechanisms to cause it to leave one galaxy and come through ours would be valid, as would a large dark matter halo

Edited April 13, 2016 by Steel

[Findthepin1]

1 minute ago, Steel said:

Except the authors are saying that due to it being a wide binary (I.e fairly distant from each other) the system would be too fragile for an international like that.

I don't think it was originally a wide binary. A narrow binary system might survive it, but might also become a wide binary system in the process.

[Steel]

3 minutes ago, Findthepin1 said:

I don't think it was originally a wide binary. A narrow binary system might survive it, but might also become a wide binary system in the process.

I would suggest that the probabilities of an interaction that resulted in a wide binary rather than two disassociated stars would be rare enough that some other possibilities would be considerably more likely

[p1t1o]

I think "breaks some of the many models that astrophysicists use" might be a better translation. I assume this sort of thing happens all the time, leading to new or updated models?

[cantab]

"Breaks current physics models" is wide of the mark I'd say. Is not explained by current models would be more accurate. We don't have a good explanation for the behaviour of these particular stars, but that doesn't necessarily undermine our explanations for the behaviour of other stars.

[PB666]

If two binary star systems were pulled close to a black hole at about the same time the two ejected stars coukd have been coupled  graviationally as they exited the black holes hill sphere, just because of random exit velocities.  This could happen when two galaxies merge because one holes prograde becomes another retrograde the inertia of each binaries could have first carried the binary system centers across each other, consumed the primary and hurled the secondaries into nearly intersecting paths.  While in the Bhs hill sphere their behaviors would be heavily influenced by the holes, however once they are far enough from the hole they would almost solely governed by each others gravity.