Redshift 3

19 Comments

1. plan wan says:

   January 21, 2010 at 4:31 pm

   http://www.facebook.com/pages/Measure-The-Redshift/186729042343
2. goldreartz uda says:

   January 23, 2010 at 9:03 pm

   what? Maybe if the grammar was better I might be able to help you more.
3. octeron says:

   February 1, 2010 at 1:32 pm

   The redshift is symbolized by z. The definition of z is

   1 + z = l observed / l rest.

   For example, taking the Balmer gamma line of galaxy 587731512071880746,

   1 + z = 4780 / 4340.5 = 1.1, so

   z = 0.1.
4. manistein koberth says:

   February 3, 2010 at 6:41 am

   “Beh, se capisco bene il senso della domanda, in realtà vi sono metodi come l’analisi spettrale della luce delle galassie che permettono in maniera affidabile di determinarne lo “spostamento verso il rosso” (il redshift di cui si parla nell’articolo) e da questo tramite i modelli cosmologici determinarne la distanza.
   Dunque non vi è rischio, usualmente, di confondere una galassia luminosa ma lontana con una magari debole ma vicina; e questo indipendentemente dalle tecniche osservative di Hubble (o di altri strumenti). Ma se non fosse chiaro, o non avessi capito la domanda, fammi pure sapere… ”
5. mochilder says:

   February 4, 2010 at 1:20 am

   ああー、なるほどまさに赤方遷移ですね。私が言っていた Red Shift は、分子中の電子の励起に必要なエネルギーが少なくなった時、より長波長の光で励起する（赤色方向に進む）です
6. sing says:

   February 4, 2010 at 10:22 pm

   I also have all previous Redshift version. However I think Redshift 3 do… (YouTube
7. shayne says:

   February 5, 2010 at 4:57 pm

   “The trouble is that the effect is so tiny that it is only visible in images of objects over truly cosmological distances. That’s OK though, say Christiansen and co, because the Hubble Space Telescope has photographed exactly the kinds of objects that are far enough away to demonstrate the effect. These objects known as high redshift quasars appear in an image known as the Ultra Deep Field. Their paper today assesses these quasars in the Ultra Deep Field to determine to what extent they show evidence of quantum foam. And here’s a thing: Christiansen and pals say that these quasars are blurred in exactly the way you’d expect from quantum foam in certain kinds of models of the universe. “The blurring is at a level consistent with a spacetime foam model,” they say. But that’s not conclusive because the blurring may also have been caused by other effects such as some other scattering medium like dust in the intervening distance…”
8. msio seel says:

   February 6, 2010 at 10:21 pm

   Shu-Fu Qin, En-Wei Liang, Rui-Jing Lu, Jian-Yan Wei, Shuang-Nan Zhang 8 pages, including 7 figures and 1 table, submitted to MNRAS Since the launch of Swift satellite, detections of high-z (z>4 and up to about 8. 3 currently) long gamma-ray bursts (LGRBs) have been rapidly growing up, even approaching the very early Universe. The observed high-z LGRB rate shows significant excess over that estimated from the star formation history. We investigate what may be responsible for this high productivity of GRBs at high-z through Monte Carlo simulations based on current Swift LGRB sample. Elaborated effective Swif/BAT trigger probability and redshift detection probability for LGRBs are estimated with current Swift/BAT sample and CGRO/BATSE LGRB sample. We compare our simulations to the Swift observations via log N-log P and L-z distributions. In the case that LGRB rate is purely proportional to the star formation rate (SFR), our simulations poorly reproduce…
9. ebert yverg says:

   February 10, 2010 at 4:37 am

   This band puts Nightwish to shame, imo.
10. saerdenny says:

    February 15, 2010 at 12:14 pm

    i love this series, i saw it all =D
11. brabiak delso says:

    February 17, 2010 at 7:29 am

    0.396c

    DO YOUR OWN WORK!
12. fenness wilczynsky says:

    February 18, 2010 at 2:10 pm

    Albert Einstein’s theory of general relativity makes a number of counterintuitive predictions about the workings of gravity, and experimentalists nearly 100 years after the theory was developed continue to confirm those predictions with increasing accuracy. A new paper co-authored by U.S. Energy Secretary Steven Chu measures the gravitational redshift, illustrated by the gravity-induced slowing of a clock and sometimes referred to as gravitational time dilation (though users of that term often conflate two separate phenomena ), a measurement that jibes with Einstein and that is 10,000 times more precise than its predecessor. [More]
13. vanetha evallah says:

    February 20, 2010 at 12:30 pm

    my favourite guitar player
14. toshiver bruno says:

    February 27, 2010 at 3:16 pm

    The redshift isn't visible to the naked eye. It takes an instrument known as a spectrometer to "see" the spectral range, including the redshift, of a star or galaxy.
15. hecconnewb sarumm says:

    March 23, 2010 at 3:36 pm

    love Red Shift! Saw them in Maine!
16. gauckeriac says:

    March 29, 2010 at 12:40 pm

    Do you guys do seminars??
17. duple barrett says:

    April 5, 2010 at 5:04 pm

    A red star is a dying star. Just like our sun. One day it will become a red giant. And destroy everything as far out as Mars.
18. good says:

    April 7, 2010 at 7:40 pm

    Love this kind ot techno
19. shu says:

    April 10, 2010 at 9:30 am

    mucha maquina poca musica