Pulsar Voices

Background / Goal

Pulsar data is available from ATNF at CSIRO.au. Our team at #SciHackMelb has been working on a #datavis to give researchers and others a novel way to explore the Pulsar corpus, especially through the sound of the frequencies at which the Pulsars emit pulses.

Source data: http://www.atnf.csiro.au/research/pulsar/psrcat/

The Team:



We plotted RA, Dec on a rectangular screen roughly to see pulsar location. One of us, Gary, worked on one pulsar data, turning the frequency into sound. A graph shows the variation in pulse between pulses. Another of the team, piotted a histogram of the range of pulsar frequencies, which shows a nice bi-modal distribution. Why is it bi-modal, we will have to ask a pulsar scientist.

What next, still to do

Projected Pulsar location to Google Maps / Google Earth

How to turn Pulsar data into Google map/Google Earth;

Google Drive -> Add new Google Map -> Import -> psrcatSparse.csv -> Add Title, description

Google Maps; maps.google.com -> Login -> Menu -> My Maps -> Select Pulsar Map -> See Map -> Click Earth (bottom left corner). Data projected onto Google Earth. -> Collapse Side Panel

Can rotate, zoom in/out. To see data on map marker; view -> expand side panel. Doesn’t seem any way to share Google Earth view, but can share Map view.

See Google Map Status of map: Public on the web - Anyone on the Internet can find and view

Pulsars projected onto Google Earth. NB: now noted that Google capped data upload at 2,000 rows. Missing points over Atlantic are 296 missing data points. See Google Map link above for reworked data.