1048 users online (205 members and 843 guests)  


Websleuths News


Results 1 to 13 of 13
  1. #1
    Join Date
    Jan 2004
    Posts
    7,020

    Weird Spinning Star Defies Explanation

    http://www.wunderground.com/news/wei...-star-20130124

    Scientists have discovered a puzzling spinning star that is spontaneously switching between two very different personalities, flipping between emitting strong X-rays and emitting intense radio waves.

    While radio frequencies are known to vary as the star changes personalities, the newfound star is the first time example of variability in X-rays as well. The star, called a pulsar because it appears to pulse, has astronomers perplexed.

    "When we look now to what is so far published in papers, nothing at this moment can explain what is happening," said the study's lead author, Wim Hermsen of the Netherlands Institute for Space Research and the University of Amsterdam.

    More at link.....



    "The further we (as the human race) grow away from the natural world, the quieter the natural world becomes and the more pathological we become as a culture."........Bernie Krause

    The citizens of the United States of America have a right to applaud themselves for having given to mankind examples of an enlarged and liberal policy—a policy worthy of imitation......which gives to bigotry no sanction, to persecution no assistance.......George Washington

  2. #2
    Join Date
    Dec 2008
    Location
    Penn's woods
    Posts
    17,195
    That's fascinating Reader thank you!

  3. #3
    Join Date
    Aug 2003
    Location
    Palm Springs
    Posts
    19,111
    Quote Originally Posted by Kat View Post
    That's fascinating Reader thank you!
    I don't believe I understand a single word of it! (But I appreciate Reader and Kat because they do.)

    But I know that "5 million years old" is very young in terms of the age of the universe. Is that a typo or could the spinning and alternating pulses be part of the birth process?

  4. #4
    Join Date
    Aug 2003
    Location
    Mid-West
    Posts
    3,868
    Quote Originally Posted by Nova View Post
    I don't believe I understand a single word of it! (But I appreciate Reader and Kat because they do.)

    But I know that "5 million years old" is very young in terms of the age of the universe. Is that a typo or could the spinning and alternating pulses be part of the birth process?
    Agreed...don't really understand it. Birth process makes sense to me.

    Will we ever find the 'end' and 'beginning' of the universe? This question has plagued me since I was 8 years old.
    -
    My opinion and nothing but my opinion.

    Tor:Con Index link below. Will show you the probability of a tornado happening in your area.
    http://www.weather.com/news/tornado-torcon-index

    FEMA's link for Emergency Supplies list below or what you need to survive for three days in case help is not immediately available to you.
    http://www.ready.gov/document/family-supply-list

    You can also purchase a weather radio which will inform you of severe weather even if your electricity goes out. Runs on batteries of course.

  5. #5
    Join Date
    Oct 2009
    Posts
    36,310
    Are they sure it is a star? Haven't seen kimster lately . . .
    Websleuths now on Facebook

    Welcome to all new members. Thank you for joining the conversation. Please take a moment to become familiar with the TOS and rules, etiquette and information.

    mni wiconi - Lakota for Water is Life.

  6. #6
    Join Date
    Aug 2003
    Location
    Palm Springs
    Posts
    19,111
    Quote Originally Posted by Show Me View Post
    Agreed...don't really understand it. Birth process makes sense to me.

    Will we ever find the 'end' and 'beginning' of the universe? This question has plagued me since I was 8 years old.
    I'd let that dream go, if I were you.

    They now think there are infinite universes, so we'll never know when they all began or when they will all end.

  7. #7
    Join Date
    Jun 2011
    Location
    McWopetaz Metroplex, Illinois U. S. of A.
    Posts
    4,562
    I believe a pulsar is a neutron star that's a remnant of a supernova that isn't massive enough to produce a black hole. Regarding the age, I don't know how that was determined but they apparently have some way of figuring it out - guessing some sort of half-life business maybe. It would have been a large "regular" star though before it ran out of fuel and went supernova - that's my understanding anyway.
    This my opinion and to the best of my knowledge, that is, if I'm not joking.


    Stan Reid

  8. #8
    Join Date
    Aug 2003
    Location
    Palm Springs
    Posts
    19,111
    Quote Originally Posted by STANDREID View Post
    I believe a pulsar is a neutron star that's a remnant of a supernova that isn't massive enough to produce a black hole. Regarding the age, I don't know how that was determined but they apparently have some way of figuring it out - guessing some sort of half-life business maybe. It would have been a large "regular" star though before it ran out of fuel and went supernova - that's my understanding anyway.
    So assuming the "5 million year" age is correct, it would refer to the length of time since the supernova, not the length of time of the entity in all forms. Yes?

  9. #9
    Join Date
    Dec 2008
    Location
    Penn's woods
    Posts
    17,195
    Quote Originally Posted by Nova View Post
    I don't believe I understand a single word of it! (But I appreciate Reader and Kat because they do.)

    But I know that "5 million years old" is very young in terms of the age of the universe. Is that a typo or could the spinning and alternating pulses be part of the birth process?
    No Nova I don't understand most of it. I wish I did though!

    But, I found it fascinating because it's a new discovery! The discovery of this star challanges everything they thought they knew about stars.

    I can't wait until they figure out (if they figure it out) why it's doing this. What is making it categorically different from other pulsars?

    Here's another article:

    http://www.astronomy.com/~/link.aspx...b-6f6c72ae6049

    It is the first time that a switching X-ray emission has been detected from a pulsar, and the properties of this emission are unexpectedly puzzling. As no current model is able to explain this switching behavior, which occurs within only a few seconds, these observations have reopened the debate about the physical mechanisms powering the emission from pulsars.
    and...

    In the meantime, these observations will keep theoretical astrophysicists busy investigating possible physical mechanisms that could cause the sudden and drastic changes to the pulsar’s entire magnetosphere and result in such a curious emission.
    Looks like they will have to rethink their theories. I find that fascinating when a theory is found in need to be reworked---don't ask me why I do, I just do

  10. #10
    Join Date
    Jun 2011
    Location
    McWopetaz Metroplex, Illinois U. S. of A.
    Posts
    4,562
    Quote Originally Posted by Nova View Post
    So assuming the "5 million year" age is correct, it would refer to the length of time since the supernova, not the length of time of the entity in all forms. Yes?
    That would be my guess which is worth close to what you paid for it.
    This my opinion and to the best of my knowledge, that is, if I'm not joking.


    Stan Reid


  11. #11
    Join Date
    Jan 2004
    Posts
    7,020
    Quote Originally Posted by Kat View Post
    No Nova I don't understand most of it. I wish I did though!

    But, I found it fascinating because it's a new discovery! The discovery of this star challanges everything they thought they knew about stars.

    I can't wait until they figure out (if they figure it out) why it's doing this. What is making it categorically different from other pulsars?

    Here's another article:

    http://www.astronomy.com/~/link.aspx...b-6f6c72ae6049

    and...

    Looks like they will have to rethink their theories. I find that fascinating when a theory is found in need to be reworked---don't ask me why I do, I just do
    Thanks for the link, Kat! and I can assure Nova and you that I don't understand it all either....like you thought it was very interesting that the scientists are stumped too...back to the drawing board to learn more about the stars!


    "The further we (as the human race) grow away from the natural world, the quieter the natural world becomes and the more pathological we become as a culture."........Bernie Krause

    The citizens of the United States of America have a right to applaud themselves for having given to mankind examples of an enlarged and liberal policy—a policy worthy of imitation......which gives to bigotry no sanction, to persecution no assistance.......George Washington

  12. #12
    Join Date
    Jun 2011
    Location
    McWopetaz Metroplex, Illinois U. S. of A.
    Posts
    4,562
    Quote Originally Posted by STANDREID View Post
    Regarding the age, I don't know how that was determined but they apparently have some way of figuring it out - guessing some sort of half-life business maybe.
    According to the link that Kat posted, they can determine the age by how much the star has cooled. Apparently they know how hot a neutron star, as per its size, is right after the supernova and the rate of cooling. Perhaps some astrophysicist can chime in to clarify.
    This my opinion and to the best of my knowledge, that is, if I'm not joking.


    Stan Reid

  13. #13
    Join Date
    Aug 2003
    Location
    Palm Springs
    Posts
    19,111
    Quote Originally Posted by Kat View Post
    ...Looks like they will have to rethink their theories. I find that fascinating when a theory is found in need to be reworked---don't ask me why I do, I just do
    I'm no atheist, but that's why science is ultimately more beautiful and exciting than religious dogma: ideas must evolve as new evidence is discovered!

    What a paean to the Creator are the wonders of the observable universe!

    ***

    Confidential to Reader: Thanks to various probes and recent work that has discovered over 400 planets in nearby solar systems, scientists have been "going back to the drawing board" a lot lately! I am finding all the unmanned discovery far more exciting than trying to send human beings into unforgivably hostile environments.



Similar Threads

  1. Son defies odds to walk into returning soldier's arms
    By Reader in forum News that makes you smile!
    Replies: 3
    Last Post: 05-13-2012, 01:17 AM