Search results
Results from the WOW.Com Content Network
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 ...
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 ]
Pulsar wind nebulae evolve through various phases. [2] [5] New pulsar wind nebulae appear soon after a pulsar's creation, and typically sit inside a supernova remnant, for example the Crab Nebula, [6] or the nebula within the large Vela Supernova Remnant. [7] As the pulsar wind nebula ages, the supernova remnant dissipates and disappears.
The Crab pulsar 33-millisecond pulse period was too short to be consistent with other proposed models for pulsar emission. Moreover, the Crab pulsar is so named because it is located at the center of the Crab Nebula, consistent with the 1933 prediction of Baade and Zwicky. [ 23 ]
Openclipart, also called Open Clip Art Library, is an online media repository of free-content vector clip art.The project hosts over 160,000 free graphics and has billed itself as "the largest community of artists making the best free original clipart for you to use for absolutely any reason".
The teenage student and substitute teacher who were killed during the shooting at a Christian school in Madison, Wisconsin, on Monday have been identified, as new details about the alleged shooter ...
The Met Collection- The Metropolitan Museum of Art's online gallery includes public domain images of artwork. Choose "open access" search option. The Smithsonian Institution Research Information System (SIRIS) – American art catalog compiled by the Smithsonian Institution. It has many reproductions of American paintings.
Mortgage and refinance rates for Monday, November 25, 2024 (carlofranco via Getty Images) Average mortgage rates open the Thanksgiving holiday week higher as of Monday, November 25, 2024, with 30 ...