archives

pulsars

This tag is associated with 11 posts

Arecibo Detects a Fast Radio Burst

A mysterious Fast Radio Burst (FRB) from beyond the galaxy has been detected at Arecibo. This is the first FRB discovered outside of Parkes Observatory, giving greater credence to the astronomical nature of these signals.

Timing is Everything: A Pulsar in Orbit

One of nature’s best clocks is a millisecond pulsar. These exotic stellar corpses are neutron stars: incredibly dense, rotating hundreds of times per second, and emitting powerful jets or beams of light. This creates a “pulsing” effect, much like a lighthouse.

UR #11: Our Galactic Magnetic Field and Stellar Autopsies

This month’s undergraduate research post features pulsars as a probe of our galaxy’s magnetic field, and the possibility of asymmetries in supernovae associated with gamma-ray bursts.

New Evidence of an Asteroid Encountering a Pulsar

Title: Evidence of an Asteroid Encountering a Pulsar Authors: P. R. Brook, A. Karastergiou, S. Buchner, S. J. Roberts, M. J. Keith, S. Johnson, R. M. Shannon First Author’s Institution:  University of Oxford Pulsars- neutron stars formed during supernovae explosions- are often considered the “precision clocks” of radio astronomy. This is because of two fundamental properties observed from […]

Designing a Self-Steering Spacecraft

As we push spacecraft to the edges of our solar system and beyond, it gets harder and harder to navigate them from Earth. But what if spacecraft could steer themselves, using observations of pulsars? Read on to find out how!

Using General Relativity to Measure Properties of Binary Pulsars

Shapiro time delays are one of the four tests of general relativity possible in the solar system. Astronomers can use these timing delays to measure properties of binary pulsar systems.

The Race to Detect Gravitational Waves: Pulsar Timing Arrays

The race to be the first to detect gravitational waves is on – are pulsar timing arrays on the verge of a discovery? New predictions based on revised galaxy merger calculations suggest that it may be so.

How Type II Supernovae Kick Neutron Stars

Nordhaus et al perform simulations to show that normal type II supernovae can produce pulsar kicks which match the observed velocities of neutron stars.

The youngest millisecond pulsar yet?

Title: Fermi Detectiqon of a Luminous γ–ray Pulsar in a Globular Cluster Authors: The Fermi LAT Collaboration Principle Investigator: Dr. Peter Michelson, Stanford University The Fermi Large Area Telescope, which was launched in 2008, is a gamma ray space telescope which can observe high-energy photons with energies ranging between 20 MeV and 300 GeV. These […]