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  2. Crab Pulsar - Wikipedia

    en.wikipedia.org/wiki/Crab_Pulsar

    The Crab Pulsar was the first pulsar for which the spin-down limit was broken using several months of data of the LIGO observatory. Most pulsars do not rotate at constant rotation frequency, but can be observed to slow down at a very slow rate (3.7 × 10 −10 Hz/s in case of the Crab). This spin-down can be explained as a loss of rotation ...

  3. List of smallest known stars - Wikipedia

    en.wikipedia.org/wiki/List_of_smallest_known_stars

    Download as PDF; Printable version; ... Crab Pulsar (PSR B0531+21) 10 ... Although its mass is comparable to that of TRAPPIST-1, its radius is 1/3 smaller. ...

  4. Crab Nebula - Wikipedia

    en.wikipedia.org/wiki/Crab_Nebula

    The Crab Nebula (catalogue designations M1, NGC 1952, Taurus A) is a supernova remnant and pulsar wind nebula in the constellation of Taurus.The common name comes from a drawing that somewhat resembled a crab with arms produced by William Parsons, 3rd Earl of Rosse, in 1842 or 1843 using a 36-inch (91 cm) telescope. [6]

  5. Variable star - Wikipedia

    en.wikipedia.org/wiki/Variable_star

    Download as PDF; Printable version; ... much lower mass, somewhat lower luminosity, ... The first and the best known example is the Crab Pulsar. Eclipsing binaries

  6. Crab (unit) - Wikipedia

    en.wikipedia.org/wiki/Crab_(unit)

    The Crab Nebula, and the Crab Pulsar within it, is an intense space X-ray source. It is used as a standard candle in the calibration procedure of X-ray instruments in space. However, because of the Crab Nebula's variable intensity at different X-ray energies, conversion of the Crab to another units depends on the X-ray energy range of interest.

  7. Near-Earth supernova - Wikipedia

    en.wikipedia.org/wiki/Near-Earth_supernova

    The Crab Nebula is a pulsar wind nebula associated with the 1054 supernova.It is located about 6,500 light-years from the Earth. [1]A near-Earth supernova is an explosion resulting from the death of a star that occurs close enough to the Earth (roughly less than 10 to 300 parsecs [30 to 1000 light-years] away [2]) to have noticeable effects on Earth's biosphere.

  8. Cancer warning labels on alcohol? It's not that simple.

    www.aol.com/news/cancer-warning-labels-alcohol...

    The country's top doctor wants a new warning added to alcohol that would alert drinkers about links to cancer, but don't expect cigarette-style warning labels any time soon. U.S. Surgeon General ...

  9. Category:Optical pulsars - Wikipedia

    en.wikipedia.org/wiki/Category:Optical_pulsars

    Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide. Help Pages in category "Optical pulsars" ... Crab Pulsar; P ...