/   Home   /   Newsroom   /   News Updates

New Method Developed to Find Hot Sub-dwarf Stars

Jan 11, 2018     Email"> PrintText Size

Chinese researchers have developed a new method to find over 10,000 potential hot sub-dwarf stars, a kind of star with a helium-burning core, the Chinese Academy of Sciences (CAS) said.

Researchers at the CAS National Astronomical Observatories used a new machine-learning algorithm to categorize hot sub-dwarf stars from data provided by the LAMOST telescope, according to the CAS website.

Compared with traditional search methods using photometric data, the new method is more accurate and efficient and requires less time, the CAS said.

The finding is expected to tremendously expand the number of hot sub-dwarf star samples and provide quality spectrum data for future study of the stars, according to the CAS.

The formation of hot sub-dwarf stars and their characteristics are important for studying stellar physics, globular clusters and galaxies. Currently, only a limited number of hot sub-dwarf stars are known by humans.

China's LAMOST, short for Large Sky Area Multi-Object Fiber Spectroscopic Telescope, has the potential to search for a number of hot sub-dwarf stars.

The finding has been published by The Astrophysical Journal Supplement Series. (Xinhua)


(Editor: CHEN Na)



Related Articles

LAMOST;data release;astronomy;Milky Way;galaxy

LAMOST Made Its Fifth Data Release

Jan 10, 2018

On December 31, 2017, LAMOST made its fifth Data Release (DR5) to both domestic users and international partners, which includes all spectra obtained during the pilot survey and the first five years’ regular survey. In LAMOST DR5, 4154 plates were obs...

LAMOST;RR Lyae variables;slim Milky Way;Milky Way

LAMOST RR Lyae Variables Reveal a Slim Milky Way

Nov 17, 2017

The Milky Way is slim, which is proved again by LAMOST “RR Lyae variables”, for about 400 billion suns’ mass within 160,000 light years. The research team led by ZHAO Gang at National Astronomical Observatories of Chinese Academy of Sciences (NAOC) ...

Contact Us

Copyright © 2002 - Chinese Academy of Sciences