Radio Pulsars vs Make Chirps

Embark on a celestial journey with Radio Pulsars, an app that transforms your iPhone into a virtual radio telescope for experiencing the captivating world of pulsar astronomy. Pulsars, fascinating remnants of massive stars, are rapidly spinning neutron stars exhibiting incredibly precise periods. Acting as cosmic ‘lighthouses’, pulsars emanate beams of electromagnetic radiation due to ultra-high magnetic fields at their poles. In Radio Pulsars, you’ll dive into authentic pulsar observations, understanding the complexities of these astronomical phenomena. Pulsars, with their distinct pulse profiles, are like fingerprints of the universe. The app showcases 85 pulsars, including 26 glitching ones, providing a diverse collection of cosmic wonders. Explore iconic pulsars like PSR J1921+2153, the first detected in 1967, PSR J0534+2200 located in the Crab Nebula, and PSR J0835-4510, the brightest known pulsar. Witness the stability of PSR J0437-4715 and the uniqueness of PSR J0332+5434, the brightest pulsar in the northern sky. Marvel at the extraordinary double pulsar system, PSR J0737-3039, and the pulsar-neutron star duo, PSR J1915+1606. Radio Pulsars offers a comprehensive exploration for these cosmic marvels, providing an engaging and educational experience for astronomy enthusiasts. Immerse yourself in the captivating world of pulsar observation and unravel the secrets of the universe! Please note Radio Pulsars now only supports iPhone and does not support iPad.

This educational app displays gravitational wave chirps created by mergers of massive black holes in several different ways, giving users an intuitive understanding of these exotic disturbances of space-time itself produced by cataclysmic events in distant galaxies. FEATURES: • Simulation: Experience the intricate behavior of gravitational waves through physics simulation of inspiralling black holes that merge to form a final black hole which then “shakes off” its excess energy. • Visualizations: See the essence of gravitational waves via waveform plots, frequency evolutions, and spectrograms, to understand the patterns and how they depend on black hole masses. • Auditory Experience: Listen closely as you hear the evolution of gravitational waves, detecting the characteristic increase in time in strength and frequency. Try varying masses to see how pitch is affected. • Dynamic Animations: Witness the captivating dance of black holes in collision animations. Explore the propagation of these waves through space-time with mesmerizing spiral animations. • Educational Insights: Gain a comprehensive understanding of gravitational waves and the pioneering work of LIGO through informative text pages, enhancing your knowledge of these cosmic phenomena. COMPATIBILITY Compatible with iPhone and iPad, iOS 16 or later. ACKNOWLEDGEMENT Supported by the National Science Foundation with grant PHY-2110181.