Archive for August 31st, 2017

A New Type of Star: BLAPs


(Syfy Wire::Bad Astronomy) – Phil Plait:

It’s not every night that astronomers discover a new kind of star. In this case, it’s not so much that the stars are totally different from other stars, and if you saw one you’d know right away something was amiss. Instead, these stars behave differently, in a way never seen before. And because of that, it took a special kind of survey to even find them at all.

The stars are called Blue Large-Amplitude Pulsators, or BLAPs. They’re called this because a) they’re blue, and 2) they pulsate, changing in brightness by the relatively large amount of 20 – 45%. That’s a lot. If the Sun did this we’d be alternately cooked and frozen. …

syfy blaps

Blue star