Whereas Population I stars are found mainly in the galactic disk, Population II stars mostly reside in the central bulge of the galaxy and in the halo surrounding this bulge.Population II stars date to the early stages of the universe. Formed when the cosmos was filled with hydrogen and ...
Whereas Population I stars are found mainly in the galactic disk, Population II stars mostly reside in the central bulge of the galaxy and in the halo surrounding this bulge.Population II stars date to the early stages of the universe. Formed when the cosmos was filled with hydrogen and ...
Population I Stars In subject area: Physics and Astronomy Population I stars are younger and more metal-rich stars that are typically found in the disk of galaxies. They are characterized by their association with ongoing star formation and are known for their higher metal content compared to Pop...
population I stars are the young metal-rich highly luminous stars found in spiral arms of galaxies – i.e. strongly concentrated in the galactic plane – and associated with interstellar gas and dust. In contrast population II stars are old red stars found throughout elliptical and lenticular ...
Population I consists of younger metal-rich hot white stars, many occurring in galactic clusters and forming the arms of spiral galaxies. Stars of population II are older, the brightest being red giants, and are found in the centre of spiral and elliptical galaxies in globular clusters 7. (...
The use of Population I pulsating stars in star clusters and associations is one of the simplest and most easily applied methods for determining cluster ages; but there are some limitations in its application.doi:10.1007/BF00643629Ts. G. Tsvetkov...
There are two populations, or groups, of stars that make up the galaxy: Population I (newer, heavier) and Population II (older, lighter). Learn the distinct compositions and cosmic behavior of these two populations, including how they form. ...
The use of Population I pulsating stars in star clusters and associations is one of the simplest and most easily applied methods for determining cluster ages; but there are some limitations in its application. Part 6 展开 DOI: 10.1007/BF00643628 被引量: 13 ...
There are innumerable smaller lakes found mainly in the ill-drained low-lying parts of the Russian and West Siberian plains, especially in their more northerly parts. Some of these reach considerable size, notably Beloye (White) Lake and Lakes Top, Vyg, and Ilmen, each occupying more than ...
where a chain of massive cores (10 − 50 M⊙) forms a massive ridge (≳150 M⊙). All evolutionary stages from starless cores to Class II protostars are found in G202.3+2.5, including a possibly starless and massive (52M⊙) core, which presents a high column density (8...