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Stellar parenting:Making new stars by 'adopting' stray cosmic gases
Stellar parenting Making new stars adopting stray cosmic gases
2016/2/22
Among the most striking objects in the universe are glittering, dense swarms of stars known as globular clusters. Astronomers had long thought globular clusters formed their millions of stars in bulk ...
Two fossil groups of galaxies at z~0.4 in the COSMOS: accelerated stellar-mass build-up, different progenitors
X-rays: galaxies: clusters – galaxies: groups: general – galaxies: evolution – galaxies: luminosity function, mass function
2011/10/12
We report on 2 fossil groups of galaxies at z=0.425 and 0.372 discovered in the Cosmic Evolution Survey (COSMOS) area. Selected as X-ray extended sources, they have total masses (M_200) of 1.9(+/-0.41...
Prediction of stellar atmospheric parameters from spectra, spectral indices and spectral lines using machine learning
stellar atmospheric parameters spectra spectral lines
2009/6/8
Prediction of stellar atmospheric parameters from spectra, spectral indices and spectral lines using machine learning。
Hipparcos, iue, and the stellar content of the solar neighbourhood
solar neighbourhood stellar content
2009/6/8
Hipparcos, iue, and the stellar content of the solar neighbourhood。