from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Plural form of redshift.


Sorry, no etymologies found.


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  • So around 2005, the Sloanies began planning to extend their survey to 1.5 million LRGs at those higher redshifts, watch exactly how the ruler shortens, and find out how the acceleration seems to behave and whether dark energy has changed with time.

    A Grand and Bold Thing

  • But those fifty thousand galaxies had all been at one particular redshift, and both Schawinski and Lintott wanted to find the blue ellipticals at different redshifts.

    A Grand and Bold Thing

  • The nearest clusters, redshifts of 0.02 or so, seemed full of galaxies that were dead, whose stars had gone from infant blue through adult yellow to old-age red.

    A Grand and Bold Thing

  • The next thing to do will be to make those same graphs—everything against everything—at a series of different redshifts and watch the populations changing with time.

    A Grand and Bold Thing

  • In December, Fan and Strauss told a collaboration meeting that they now had twelve new quasars with redshifts over 3.6, that three of the four farthest quasars known had been found by the Sloan, and that those twelve quasars had been selected from nineteen candidates, meaning their success rate was 70 percent, much higher than the 10 percent rate of surveys with photographic plates.

    A Grand and Bold Thing

  • The final step was to determine the x-ray luminosity of each galaxy cluster and plot it against the mass determined from the weak lensing, with the resulting mass-luminosity relation for the new collection of groups and clusters extending previous studies to lower masses and higher redshifts.

    Dark Matter in Distant Galaxy Groups Mapped for the First Time | Universe Today

  • "By confirming the mass-luminosity relation and extending it to high redshifts, we have taken a small step in the right direction toward using weak lensing as a powerful tool to measure the evolution of structure," says Jean-Paul Kneib a co-author of the ApJ paper from LAM and France's National Center for Scientific Research CNRS.

    Dark Matter in Distant Galaxy Groups Mapped for the First Time | Universe Today

  • Very deep exposures of a well studied galaxy field has now allowed astronomers to say, with some degree of confidence, just how many more LAGs exist over the whole sky at least for objects with redshifts between 2 and 6.

    Astronomers Find 90% More Universe! | Universe Today

  • It would achieve this by measuring shapes and redshifts of galaxies and clusters of galaxies out to redshifts ~2, or equivalently to a look-back time of 10 billion years.

    ESA's Tough Choice: Dark Matter, Sun Close Flyby, Exoplanets (Pick Two) | Universe Today

  • Some enterprising zooites got into SkyServer and found the peas shared a certain spectrum—the zooites are seriously educating themselves about spectra—and are now looking for them at different redshifts.

    A Grand and Bold Thing


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