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2013年1月7日 · The Vela pulsar is about 1,000 light years from Earth, spans about 12 miles in diameter, and makes over 11 complete rotations every second, faster than a helicopter rotor. As the pulsar whips around, it spews out a jet of charged particles that race out along the pulsar’s rotation axis at about 70% of the speed of light.

2023年11月28日 · A new catalog produced by a French-led international team of astronomers shows that NASA’s Fermi Gamma-ray Space Telescope has discovered 294 gamma-ray-emitting pulsars, while another 34 suspects await confirmation. This is 27 times the number known before the mission launched in 2008.

2025年1月10日 · PULSAR (Planetary pULSe-tAkeR) is a stable spacecraft constellation that enables large and reconfigurable detector baselines to sense a wide range of frequencies in this coupled domain, and distributed spatial and temporal measurements on a global scale, leading to new planetary science measurements.

2023年11月28日 · A new catalog produced by a French-led international team of astronomers shows that NASA’s Fermi Gamma-ray Space Telescope has discovered 294 gamma-ray-emitting pulsars, while another 34 suspects await confirmation. This is 27 times the number known before the mission launched in 2008.

2007年7月3日 · A pulsar is a rapidly rotating neutron star that emits pulses of radiation (such as X-rays and radio waves) at regular intervals. A millisecond pulsar is one with a rotational period between 1 and 10 milliseconds, or from 60,000 to 6,000 revolutions per minute.

Pulsar Beams rotate like lighthouse beacons light would appear to turn on and then off, once per spin. That’s exactly how a pulsar appears. Astronomers have identified over 1000 pulsars. They pulse at all sorts of wavelengths at the same time, including visible light and x-rays, not just radio waves. Pulsars are presently recognized as having the

X-ray pulsar-based navigation and timing (XNAV) or simply pulsar navigation is a navigation technique whereby the periodic X-ray signals emitted from pulsars are used to determine the location of a vehicle, such as a spacecraft in deep space. A vehicle using XNAV would compare received X-ray signals with a database of known pulsar frequencies ...

2003年6月26日 · Imagine the Universe! Among the more than 1000 known pulsars, these seven are seen by gamma-ray telescopes and in some cases at other wavelengths. The pulse shapes (sometimes called "light curves" by pulsar astronomers) show the brightness of each pulsar as the neutron star makes one complete rotation.

Pulsar Ephemerides for Timing LAT Pulsars. Timing pulsars with the LAT requires the use of an ephemeris that covers the time period being analyzed. Below are several resources to provide this useful input to your analysis. These include: High E-dot Radio timing models — Provided by the Pulsar Timing Consortium.