Showing posts with label fast radio bursts. Show all posts
Showing posts with label fast radio bursts. Show all posts

Monday, March 14, 2016

Burst 14 - Jason Hessels on the Repeating Fast Radio Burst



Released: 14 March 2016
Duration:22 minutes, 55 seconds

Download the .mp3 audio file

We talk to radio astronomer Jason W.T. Hessels, corresponding author on a recent paper in Nature describing a repeating fast radio burst.  We asked Dr. Hessels about the discovery of the repeating burst, why his team believes they are from all one source outside our galaxy, what some of the proposed theories to explain the burst are, and efforts to follow up on the detection.


Guest Bio
Dr. Jason W.T. Hessels

Jason Hessels is an Associate Professor at the University of Amsterdam and the Netherlands Institute for Radio Astronomy.  His work focusses on studying the properties of radio pulsars and exploring other very short transient signals from our galaxy and beyond.  To do this, he uses the world's largest radio telescopes, including the 305-m dish in Arecibo and the Dutch Low-Frequency Array (LOFAR)

Links:

A Repeating Fast Radio Burst
The Arecibo Observatory in Puerto Rico
Fast Radio Burst Discovered in the Arecibo Pulsar ALFA Survey
The Unseen Podcast Discussion of FRBs

What about these FRBs?

The LOFAR Radio Telescope

Credits:

Host and Producer: Paul Carr
Music: Jason Robinson and DJ Spooky


Wednesday, April 8, 2015

Burst 5 - What about these FRBs?



Release Date: 8 April 2015

Download the .mp3 audio file

A recent paper, Discrete Steps in Dispersion Measures of Fast Radio Bursts, has generated a lot of excitement. Paul Carr reviews the basic facts about the 11 known FRBs and what this strange pattern might imply.

Update: Petroff, et. al., Finding the Source of Perytons at the Parkes Radio Telescope

Further Update: Five new FRBs were recently reported.  Only one of these five (130626) has a Dispersion Measure close to a multiple of 187.5, so it could just be a fluke, but FRB 150418 was also reported, and it's DM is 776.2, which is close to 4 x 187.5.

Music by Jason Robinson