Page 13 of 13 FirstFirst ... 345678910111213
Results 241 to 254 of 254

Thread: Life and times of a black hole

  1. #241
    Member
    Join Date
    Jan 2008
    Posts
    312
    Thanks
    9
    Thanked 11 Times in 11 Posts
    Rep Power
    163
    Reputation
    118

    Default

    One of the more intriguing findings of the study, Ricarte noted, has to do with the way the largest black holes in the universe interact with their host galaxies over time. The researchers found that SMBHs and their hosts grow in tandem, and that the relationship is "self-correcting," independent of the kind of environment they inhabit. The more mass around them the quicker and bigger they grow.

    "If the SMBH starts to grow too rapidly and gets too big for its galactic home, physical processes ensure that its growth slows down relative to the galaxy," Tremmel explained.When the material runs out it does not grow as fast .

    "On the other hand, if the SMBH's mass is too small for its galaxy, the SMBH's growth rate increases relative to the size of the galaxy to compensate."


    Support for the research came from a number of sources, including NASA and the National Science Foundation. The research is part of the Blue Waters computing project supported by the National Science Foundation and the University of Illinois at Urbana-Champaign.
    So they get the funding and then return their results that simply state the obvious but in a round about deceptive way.!

    Last edited by tytower; 03-10-19 at 09:43 AM.
    My Health , my Family and my Property are not Government business. Governments should do what they were designed to do . Govern the issues best done by a central body in the country.

    To defeat corruption in the public service , give them three times the penalty. Have them agree on hiring.
    To the one responsible for fixing my profile I thank you greatly . I did notice.



  • #242
    Member
    Join Date
    Jan 2008
    Posts
    312
    Thanks
    9
    Thanked 11 Times in 11 Posts
    Rep Power
    163
    Reputation
    118

    Default

    Here is a bit more of this . Definitely looking for finance to continue wasting their time and not doing any real work!



    It must have been a big one though to fit 15 Milky way galaxies in a line into its blast crater ?.
    Last edited by tytower; 01-03-20 at 09:40 PM.
    My Health , my Family and my Property are not Government business. Governments should do what they were designed to do . Govern the issues best done by a central body in the country.

    To defeat corruption in the public service , give them three times the penalty. Have them agree on hiring.
    To the one responsible for fixing my profile I thank you greatly . I did notice.

  • #243
    Senior Member
    trash's Avatar
    Join Date
    Jan 2008
    Location
    Tamworth
    Posts
    3,821
    Thanks
    134
    Thanked 2,864 Times in 1,293 Posts
    Rep Power
    1085
    Reputation
    40374

    Default

    Quote Originally Posted by tytower View Post
    Definitely looking for finance to continue wasting their time and not doing any real work!
    How many times do I have to tell you Tytower? You're not supposed to drink the bong water!

    That's right. The entire astronomical community has created a huge facade for the purpose of defrauding the taxpayer of revenue.
    Getting paid to look at the stars. How good is that? They don't even have to deal with centerlink. Then all they have to do is to make up a bit of a story and write it down and they're good for another couple of years. Clearly only Tytower is capable of seeing through this charade and cult of academic sky worshipers.

    And what about NASA ... trillions of dollars wasted on faking all those space missions when George Lucas can show us a galaxy far far away in just a couple of hours.


    Black holes... nothing good has every come out of them. Actually, nothing has come out of them.
    Yes I am an agent of Satan, but my duties are largely ceremonial.

  • #244
    Senior Member
    trash's Avatar
    Join Date
    Jan 2008
    Location
    Tamworth
    Posts
    3,821
    Thanks
    134
    Thanked 2,864 Times in 1,293 Posts
    Rep Power
    1085
    Reputation
    40374

    Default

    Covid-19 must have killed Tytower because normally we'd hear something from him about this by now.


    Nearest stellar mass black hole. About 6 solar masses in a trinary star system 1000 light years away.


    At the other end of the stellar spectrum is the nearest brown dwarf system to earth, which is the third closest star system.
    Luhman 16
    Yes I am an agent of Satan, but my duties are largely ceremonial.

  • #245
    LSemmens
    lsemmens's Avatar
    Join Date
    Dec 2011
    Location
    Rural South OZ
    Posts
    8,826
    Thanks
    8,723
    Thanked 5,462 Times in 2,633 Posts
    Rep Power
    2407
    Reputation
    100500

    Default

    Does anyone have any contact with Tytower IRL? I hope he's OK.
    I'm out of my mind, but feel free to leave a message...

  • The Following User Says Thank You to lsemmens For This Useful Post:

    tristen (22-05-20)

  • #246
    Member
    Join Date
    Jan 2008
    Posts
    312
    Thanks
    9
    Thanked 11 Times in 11 Posts
    Rep Power
    163
    Reputation
    118

    Default

    Now this is interesting .
    Galaxy DLA0817g, nicknamed the Wolfe Disk after the late astronomer Arthur M. Wolfe, is the most distant rotating disk galaxy ever observed


    seen when the universe was only ten percent of its current age
    So about 1.4 Billion years old. (The light has travelled for 12.4 Billions of years before it enters the telescope here.)

    The unparalleled power of ALMA made it possible to see this galaxy spinning at 170 miles (272 kilometers) per second, similar to our Milky Way.
    So there was not enough time for it to have speeded up to that velocity.
    This seems to indicate to me that if we had the ability to see out to say 16 Billions of years ago we would observe more and indeed many plentiful galaxies.
    BUT , think about it , at what point does light just not retain any energy and just stop?
    There is no guarantee that light can continue on its journey indefinately , nothing that has been proved anyway.
    Perhaps its unable to go the distance.

    Oh and I am fine Thanks ,thank you for asking.

    My Health , my Family and my Property are not Government business. Governments should do what they were designed to do . Govern the issues best done by a central body in the country.

    To defeat corruption in the public service , give them three times the penalty. Have them agree on hiring.
    To the one responsible for fixing my profile I thank you greatly . I did notice.

  • The Following User Says Thank You to tytower For This Useful Post:

    lsemmens (21-05-20)

  • #247
    Senior Member
    trash's Avatar
    Join Date
    Jan 2008
    Location
    Tamworth
    Posts
    3,821
    Thanks
    134
    Thanked 2,864 Times in 1,293 Posts
    Rep Power
    1085
    Reputation
    40374

    Default

    I told them you'd be back Tytower.

    Quote Originally Posted by tytower View Post
    So there was not enough time for it to have speeded up to that velocity.
    Umm.. no. That's not correct at all. 272km/s is quite slow. This is only about 500 times faster than the Earth rotates on it's own axis.
    And only 10 times faster than the earth orbits the sun. I don't think there is any mystery here.

    Oh I know, lets do some calculus. Lets assume linear acceleration from the start of the universe until then.
    272km/s in 1.4 billion years. That is an acceleration of ....
    umm 1.4 billion years is umm... 44,150,400,000,000,000 seconds.

    272 / 44150400000000000 = 6.16e-15 ms^-2
    This is slightly weaker than the gravitational pull of a tennis ball.

    And I'm glad you're back too, because you come up with some of the most whacky ideas that when deconstructed with actual science are pretty funny.
    Lets continue and see what we can make of this sentence....

    This seems to indicate to me that if we had the ability to see out to say 16 Billions of years ago we would observe more and indeed many plentiful galaxies.
    That is correct. Only you won't be able to see them for about another 1.5 billion years because light from that part of the universe has not had enough time to reach us yet.

    BUT , think about it , at what point does light just not retain any energy and just stop?
    And Tytower jumps into hyperspace heading for a conclusion.
    No. Light does not just lose energy, nor does it stop or slow down. On this forum you will obey the laws of thermodynamics.
    If a photon leaves your green laser pointer and head out into space towards the edge of the universe it does not lose energy just traveling through ordinary space. When it gets to 15 billion years out, it will still be a green photo with the same energy and velocity 3e+8 m/s.

    There is no guarantee that light can continue on its journey indefinately , nothing that has been proved anyway.
    Wow, two fallacies in one sentence. That is impressive.

    The first fallacy is an Affirmative conclusion from a negative premise.
    "There is no guarantee that light can continue on its journey indefinitely"
    Light will continue it's journey indefinitely unless there is an obstruction and then there is equal probability of it doing so or not doing so.
    It is not a conclusive negative. (Nor is it a conclusive positive).

    "nothing that has been proved anyway."
    That is a fallacy called, an argument from ignorance.
    Because something is in question the conclusion is therefore false (or true)
    Yes I am an agent of Satan, but my duties are largely ceremonial.

  • The Following 2 Users Say Thank You to trash For This Useful Post:

    hinekadon (23-05-20),tristen (22-05-20)

  • #248
    Premium Member

    Join Date
    Feb 2008
    Posts
    3,232
    Thanks
    1,674
    Thanked 1,752 Times in 869 Posts
    Rep Power
    765
    Reputation
    25428

    Default

    Watching one of my science programs the other night (love them), a theorist said that due to the universe expanding, that we will be unable to see the outer planets as time goes on!
    Does that not fly in the face of what you have just said or is there another reason for them not being seen?
    There is a fine line between "Hobby" and "Madness"

  • #249
    Senior Member
    trash's Avatar
    Join Date
    Jan 2008
    Location
    Tamworth
    Posts
    3,821
    Thanks
    134
    Thanked 2,864 Times in 1,293 Posts
    Rep Power
    1085
    Reputation
    40374

    Default

    It might be a misinterpretation on your part allover.
    This is the key part of you sentence....
    "that we will be unable to see the outer planets as time goes on!"

    It is incorrect. It should say .... "that we will be unable to see the more distant galaxies as time goes on!"

    So the expanding universe and dark energy effects large distances on intergalactic scales. It doesn't effect things on a local scale (smaller than galaxies).
    To put it back into context as time goes by dark energy will continue to pull galaxy super clusters apart, then galaxy clusters, our of the super clusters, and then galaxies out of the clusters.

    But this is going to take billions of years. So in terms of "us" this means all life in the universe. The entire existence of humans and any other life on earth... meh. Doesn't rate.

    Basically our solar system will be long long long gone before dark energy gets down to the scale of single galaxies.


    ----

    So lets continue the story from here. In this galaxy a long long looooooooong time in the future when dark energy is strong enough to pull clusters apart.
    Gravity is no longer able to hold them in groups because dark energy is stronger and they start falling apart.
    As the reaming galaxies fade from view of billions of years, what's left in the galaxies starts to die anyway. There is no new gas, no new stars. Only old red stars exist and eventually even the red dwarfs run out of fuel and become tiny white dwarfs. The occasional type 1a supernova from merging white dwarfs and the odd kilonova from merging neutron stars but other than those the galaxy goes red and then dark and fades away of a few more billion years.

    Dark Energy gets so strong that it is now able to pull galaxies apart which are just dark clusters of dark dead objects. black dwarfs, black holes, carbon and iron and a bit of helium.
    The orbits of these objects around the supermassive black hole in galaxies gets larger and larger until they fly off in all directions.

    After a few more billion years dark energy gets strong enough to pull any remaining planets off their now long dead stars.
    Elon Musk's telsa has been floating in space for hundreds of billions of years at this point. Dark energy pulled it away from Sagittarius A* billions of years prior.
    It's now so strong that it can pull starman from his seat. It continues to get stronger over millions of more years and is able to rip the seats out of the car that are bolted to the floor.
    Eventually it's able to pull the paint off the chassis. Then it pulls the chassis apart the welds break and the pieces become speggittified.
    The pieces get pulled apart at the atomic level and the Telstra is now just a gas forever expanding.
    Eventually the molecules are ripped apart into individual atoms. Then the electrons are ripped from the atoms and then protons and neutrons are pulled apart in the nucleus.
    We finally get to the end of the universe. (The big rip) where the quarks are pulled apart from the protons and neutrons.
    This isn't possible so the universe once again becomes a quark-gluon soup.
    Yes I am an agent of Satan, but my duties are largely ceremonial.

  • The Following 4 Users Say Thank You to trash For This Useful Post:

    allover (22-05-20),hinekadon (23-05-20),Tiny (23-05-20),tristen (22-05-20)

  • #250
    Premium Member
    hinekadon's Avatar
    Join Date
    Jan 2017
    Location
    still above ground level
    Posts
    1,462
    Thanks
    3,839
    Thanked 1,585 Times in 584 Posts
    Rep Power
    651
    Reputation
    28077

    Default

    see I told you the earth sucks !!! thats why its flat
    are you a self appointed hypocrite sheriff or just a nasty person

  • #251
    Senior Member
    trash's Avatar
    Join Date
    Jan 2008
    Location
    Tamworth
    Posts
    3,821
    Thanks
    134
    Thanked 2,864 Times in 1,293 Posts
    Rep Power
    1085
    Reputation
    40374

    Default

    If it was flat, I would have pushed a lot of you over the edge by now.
    Yes I am an agent of Satan, but my duties are largely ceremonial.

  • #252
    Crazy Diamond
    Tiny's Avatar
    Join Date
    Dec 2010
    Location
    Tasmania
    Age
    60
    Posts
    6,132
    Thanks
    10,275
    Thanked 4,992 Times in 2,502 Posts
    Rep Power
    1922
    Reputation
    80177

    Default

    Quote Originally Posted by trash View Post

    So lets continue the story from here. In this galaxy a long long looooooooong time in the future when dark energy is strong enough to pull clusters apart.
    Gravity is no longer able to hold them in groups because dark energy is stronger and they start falling apart.
    As the reaming galaxies fade from view of billions of years, what's left in the galaxies starts to die anyway. There is no new gas, no new stars. Only old red stars exist and eventually even the red dwarfs run out of fuel and become tiny white dwarfs. The occasional type 1a supernova from merging white dwarfs and the odd kilonova from merging neutron stars but other than those the galaxy goes red and then dark and fades away of a few more billion years.

    Dark Energy gets so strong that it is now able to pull galaxies apart which are just dark clusters of dark dead objects. black dwarfs, black holes, carbon and iron and a bit of helium.
    The orbits of these objects around the supermassive black hole in galaxies gets larger and larger until they fly off in all directions.

    After a few more billion years dark energy gets strong enough to pull any remaining planets off their now long dead stars.
    Elon Musk's telsa has been floating in space for hundreds of billions of years at this point. Dark energy pulled it away from Sagittarius A* billions of years prior.
    It's now so strong that it can pull starman from his seat. It continues to get stronger over millions of more years and is able to rip the seats out of the car that are bolted to the floor.
    Eventually it's able to pull the paint off the chassis. Then it pulls the chassis apart the welds break and the pieces become speggittified.
    The pieces get pulled apart at the atomic level and the Telstra is now just a gas forever expanding.
    Eventually the molecules are ripped apart into individual atoms. Then the electrons are ripped from the atoms and then protons and neutrons are pulled apart in the nucleus.
    We finally get to the end of the universe. (The big rip) where the quarks are pulled apart from the protons and neutrons.
    This isn't possible so the universe once again becomes a quark-gluon soup.
    Just happened to see this on Dark Energy & it's effect on accelerating universal expansion.

    This guy (Professor Ed Copeland) explains it well within my grasp of the subject.

    Last edited by Tiny; 23-05-20 at 06:13 PM.
    Cheers, Tiny
    "You can lead a person to knowledge, but you can't make them think? If you're not part of the solution, you're part of the problem.
    The information is out there; you just have to let it in."

  • The Following User Says Thank You to Tiny For This Useful Post:

    Uncle Fester (23-05-20)

  • #253
    Senior Member
    Uncle Fester's Avatar
    Join Date
    Jan 2008
    Location
    Commonly found in a pantry or the bottom of a fridge, searching for grains, fermented or distilled
    Posts
    5,019
    Thanks
    1,614
    Thanked 3,147 Times in 1,828 Posts
    Rep Power
    1446
    Reputation
    56438

    Default

    Quote Originally Posted by hinekadon View Post
    see I told you the earth sucks !!! thats why its flat
    Well if trash's story is right, then not only will it be flat, it will become one dimensional.

    But then maybe it could be eventually pushed into none at all, a singularity.

    I like the idea that emerged from the video that we are being pushed not pulled.
    Now it makes much more sense. Dark energy is within us and is kicking our butts, well in a relatively smooth kind of way.

    ...or maybe better, we, the Universe and everything are being pumped apart and as the density of our observable energy reduces from the expansion but dark energy does not because it is already everywhere, relatively speaking it can pump harder.
    Last edited by Uncle Fester; 23-05-20 at 11:14 PM.
    This era of thoughtless consumption must end so we can encourage a world of creative geniuses rather than consumer idiots.


  • #254
    Premium Member

    Join Date
    Feb 2008
    Posts
    3,232
    Thanks
    1,674
    Thanked 1,752 Times in 869 Posts
    Rep Power
    765
    Reputation
    25428

    Default

    WOW, those who are stuck in side due to Corona Virus, here is a series of programs to watch
    There is a fine line between "Hobby" and "Madness"

  • Page 13 of 13 FirstFirst ... 345678910111213

    Bookmarks

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •