Cosmic Jets?

[Rand45]

What are cosmic jets and what would happen If a Cosmic Jet hit our sun? And be seen through X-ray telescopes like Chandra

[kevin1981]

Cosmic jets are streams of high energy particles shooting out of black holes.

[Grey]

Certainly a huge influx of particles hitting the Sun might have some unusual effects. It's worth noting, though, that there aren't any black holes even vaguely close enough for that to happen. It's pretty likely that just having a black hole close enough that its jets could reach the Sun would probably cause more disruption within the solar system than the jet itself.

[Cougar]

You're talking about relativistic beaming, and here's the article you want (http://en.wikipedia.org/wiki/Relativistic_beaming). While accreting black holes are likely the most abundant originators of such jets, they might also originate simply from a massive compact object that is accreting matter.

If a jet hit the Sun? Depends on a lot of things - how far away is the jet coming from? What's the mass of the originating object? How wide is the beam angle? Anything that hit the Sun would also be hitting Earth, in which case, you'd probably want to be living in a deep cave....

[astromark]

What are cosmic jets and what would happen If a Cosmic Jet hit our sun? And be seen through X-ray telescopes like Chandra

Of all the things that 'Could' happen did.. We would be dead already. It does not seem to have happened yet.

A Cosmic Jet is a Airbus 380.. (No its not).. Ooops.:)

It is a high energy stream of subatomic particles ejected from the poles of a Black Hole..

I do not know what triggers this to happen. We do know it does happen, we have images of them..

There is only one side on spiral galaxy that we know of that 'Might' be a concern..

It is of little concern, because of the great distance from us..( This galaxy is 1,000's of LY away.)

and to answer your question regardless.. What would happen ?

The Sun would be considerably disturbed.

Energy outputs would fluctuate and We ( Earth ) might face being 'sterilized.' OR...

'Nothing' at all would happen but a 'That's interesting' moment... I vote for the later idea.

[pzkpfw]

It feels important to clarify something: it's my understanding that these jets come from the stuff that is falling into black holes - that is: from stuff being highly energised during the "fall", but before it's crossed the event horizon.

(Comments on these jets (e.g. "shooting out of black holes") can sometimes make it sound like the jets come from "inside" the black hole, i.e. inside the event horizon, which I didn't think they could.)

[astromark]

Your understanding is as mine.. its the in falling stuff that gets to be so energised.. But my statement is not wrong.

The stream is from the polar regions of the BH.. like jets... not equatorial.. that is all I was saying.

[kevin1981]

It feels important to clarify something: it's my understanding that these jets come from the stuff that is falling into black holes - that is: from stuff being highly energised during the "fall", but before it's crossed the event horizon.

Okay, thanks. I did not know that, though it is not unusual for me to learn stuff here !

[Cougar]

It is a high energy stream of subatomic particles ejected from the poles of a Black Hole..
I do not know what triggers this to happen.

All that accreting matter, swirling around like water down a drain, creates a monstrous magnetic field. That field apparently grabs some of the infalling particles and ejects them at near light speed along the magnetic field lines, which align with the poles. As mentioned, all this is occurring outside the compact object's event horizon.

[Rand45]

Has our galaxies black hole emitted a jet? I'm sorry if I bothered you guys it's just the Pane Andov guy is still scaring me from my last thread.

[Cougar]

Has our galaxies black hole emitted a jet?

Well, in the distant past, the supermassive black hole in the center of our galaxy probably did. Then in 1997, astronomers discovered a fountain of hot gas and antimatter shooting some 3,500 light years out of the nucleus of the Milky Way. Fortunately, this "fountain" is perpendicular to the disk, as would be any jets coming from a central SMBH, typically.

[Grey]

Well, in the distant past, the supermassive black hole in the center of our galaxy probably did. Then in 1997, astronomers discovered a fountain of hot gas and antimatter shooting some 3,500 light years out of the nucleus of the Milky Way. Fortunately, this "fountain" is perpendicular to the disk, as would be any jets coming from a central SMBH, typically.And note that although 3,500 light years is a long distance, we're about ten times that far away from center of our galaxy.

[Rand45]

Wait if subatomic particles are not supposed to go faster than the speed of light then how come in November last year there was a report going around of scientists discovering subatomic particles going faster than the speed of light. This still scares me though I just can't get my mind off of this

[speedfreek]

Wait if subatomic particles are not supposed to go faster than the speed of light then how come in November last year there was a report going around of scientists discovering subatomic particles going faster than the speed of light. This still scares me though I just can't get my mind off of this

Don't worry. Whatever the ramifications of that experiment, it does not increase the chances of anything bad happening. :)

[Shaula]

Re-read the last bit of Cougar's reply - any jets will come out perpendicular to the disk. Well away from us and nothing, therefore, to worry about.

[ngc3314]

Re-read the last bit of Cougar's reply - any jets will come out perpendicular to the disk. Well away from us and nothing, therefore, to worry about.

Except that jets from active galactic nuclei aren't always perpendicular to the plane of the disk (if the galaxy has one). They are generally perpendicular to small-scale (few hundred light-year) innermost disks of gas and dust, and if that has been fed mostly by material from farther out in the galaxy disk, eventually the black hole, accretion disk, and galaxy disk will tend to align. Jets in spirals, if they lie close to the disk plane, get easily disrupted by encountering all the intervening material, and turn into less organized and relatively small structures, seen in many Seyfert galaxies - NGC 1068 is a prime local example. This still means that jets that managed to come our way would have most of their energetic particles confined closer to the galactic core.

[Rand45]

Okay Ngc3314 just scared me again I just can't seem to find any way of reAssurance can I? I don't wanna die

[pzkpfw]

Okay Ngc3314 just scared me again I just can't seem to find any way of reAssurance can I? I don't wanna die

Quite frankly, none of us will live forever.
Some of us will make it to 100.
Some of us may get run over by busses tommorrow.

In the end, you would be far far better off if you worried more about what you eat and how much exercise you get, than worrying about cosmic jets.

Has one wiped out life on Earth in the last, say, 2,000 years? Did your great-great grand parents get affected by a cosmic jet? No.

Worry less about the stars, and just look both ways when you cross the road. It's a much better use of your time.

[Shaula]

Okay Ngc3314 just scared me again I just can't seem to find any way of reAssurance can I? I don't wanna die
Then you were not listening to what he said. Point was the bulk component of these jets won't make it out as far as us. The claim you are afraid of is total rubbish written by someone with (charitably) a very tenuous grasp of physics. It would be more scientifically correct to be terrified of the Lock Ness monster turning up on your doorstep demanding alimony.

[fcunnane]

Quite frankly,

You rang?

It would be nice one day to have a solid idea of why exactly jets are observed in the x-ray spectrum, like maybe an acceleration of charged particles through a magnetic field?. There have been a great many attempts to discuss black holes some of which get ridiculous (in my opinion) where others will not let go of anything that doesn't violate the actual physical laws observed elsewhere right here on this board. Is it something extreme? Yes. Does that mean it cane have pink unicorns pressing buttons inside of it, well maybe, as it cannot directly be observed, however most everything else would indicate most likely not. The cosmic airbus goes well with the scorpions on Venus I might add.

Frank.

[nota]

is there a galaxy with a center BH and jet that is jetting into the disk
or are they mostly alined 90 deg away from the disk

is there a relationship between galaxy disk rotation
and BH jet alinements that are lined up with the BH's spin

can a BH frame drag a galaxy into a relationship vs spin/rotation alinement ?

[ngc3314]

Yes, not necessarily, and no.

In more detail,

(1) NGC 1068 (among other Seyferts)

(2) if there is one it's very loose and not predictively useful. However, keep in mind that there are few disk galaxies with large-scale jets such as one sees in radio galaxies or radio-loud quasars. In typical radio galaxies with elliptical-like host galaxies, the jets are systematically perpendicular to dust disks with sizes no larger than a thousand light-years, which aren't necessarily aligned in an obvious way with the shape of the whole galaxy. (This is likely to be a transient situation, as the shape of the overall potential well exerts torques on such a disk.

(3) More likely to go the other way, if the black hole grows by accretion from material in the galaxy disk. In the simplest picture, accreted material coming from the galaxy disk will share its angular momentum and impart (part of) that to the black hole. (Local bars, for example, may change this by altering the direction of incoming matter). Since the black hole has only <2% the mass of the surrounding bulge of stars, the effects are much more likely to change the black hole's angular momentum than the other way around.

[astromark]

Of some concern... That word some requires some explanation..

Do any of you have better information ? or can this be filled a nonsense ?

In Sagitarius 'Wolf Rayet 104' A end on at 8,000 ly distance Is of 'Some' concern.

Does this fit this question ?