Lmst

#stellarstructure

Science Magazine astronomy covers appreciation post

Signatures of the Sun's Center (2007) - featuring the SOHO spacecraft

https://science.org/toc/science/316/5831

#universe #sun #soho #spacecraft #sohospacecraft #helioseismology #stellarstructure #solarphysics #physics #esa #nasa #astronomy #astrophysics #astrodon #space #science #sciencecovers #cover #covers #research #star

A cover of Science Magazine featuring an artist's rendition of the Solar and Heliospheric Observatory (SOHO) spacecraft targeting our star with its Global Oscillation at Low Frequency (GOLF) instrument.

The Sun's vibrations can reveal details of its inner structure. Pressure-driven modes have long been observed, but they provide only limited information about the center of the Sun, which contains more than half the Sun's mass and is the region where fusion occurs. Gravity-driven modes can potentially reveal more about changes in buoyancy of the Sun's dense inner core but are very weak at the Sun's surface and have been hard to detect. García et al. (p. 1591, see also the news story by Kerr, and the Perspective by Hill) report the observation, in 10 years of data accumulated by SOHO/GOLF, of a periodic structure in the solar power spectrum that is characteristic of gravity modes.

Referenced link: https://phys.org/news/2023-05-jwst-unveil-stellar-star-forming-galaxy.html
Discuss on https://discu.eu/q/https://phys.org/news/2023-05-jwst-unveil-stellar-star-forming-galaxy.html

Originally posted by Phys.org / @physorg_com: http://nitter.platypush.tech/physorg_com/status/1656288004393107463#m

JWST observations unveil #stellarstructure of star-forming galaxy GN20 @arxiv https://arxiv.org/abs/2304.13529 https://phys.org/news/2023-05-jwst-unveil-stellar-star-forming-galaxy.html

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