SDSS J2355+0448 tagged posts

Revolutionary Camera Allows Scientists to Predict Evolution of Ancient Stars

Figure 3
Phase-folded HiPERCAM light curves of SDSS J2355+0448.

For the first time scientists have been able to prove a decades old theory on stars thanks to a revolutionary high-speed camera. Scientists at the University of Sheffield have been working with HiPERCAM, a high-speed, multicolour camera, which is capable of taking more than 1,000 images per second, allowing experts to measure both the mass and the radius of a cool subdwarf star for the first time.

The findings published today (8 April 2019) in Nature Astronomy have allowed researchers to verify the commonly used stellar structure model – which describes the internal structure of a star in detail – and make detailed predictions about the brightness, the colour and its future evolution.

Scientists know that old stars have few...

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