We present preliminary results of a study aimed at identifying and characterizing the Asymptotic Giant Branch (AGB) stars in the outer Galaxy using the color-color diagram (CCD) that combines the Spitzer Space Telescope and 2MASS photometry: K_s - [8.0] vs. K_s - [24]. Our initial ...
The purpose of binary population synthesis is to detechne, as far as possible, the consistency of our theoretical understanding of single and binary stars with the statistics of stars in our galaxy (and ultimately other galaxies). It is important to fit all types of stellar systems simulta- ...
stars in the GALEX catalogue are identified by choosing a suitable infrared (IR) colour,J−W1(W1 is a WISE band at 3.4μm), which corresponds to a temperature range from 1650 K to 65 000 K. The IR colour cut method, which is used for the first time for separation of stars, is...
(5) in Tanikawa et al. Tanikawa et al. (2022). We use a Pop III SFR density evolution based on a theoretical study, because Pop III stars have not yet been observed unlike Pop I/II stars. We note that other studies have also suggested Pop III SFR density evolution (Jaacks et...
Population I stars population I, population II Population II Population II star Population II stars population III Population III star Population III stars Population Independent Transmission Control Population Information and Forecasting Unit Population Information Network ...
The origin of merging binary black holes (BHs) is one of the biggest problems to solve in astronomy and astrophysics. In this paper, we suggest that isolated binary stars can be their origin when we consider metal-free or Population (Pop) III stars. In this section, we introduce three in...
VizieR Online Data Catalog: Population model of binary stars in the Galaxy (Tutukov+, 2002) A comparative study of the population of the galactic binary stars is performed for two modes of star formation: star formation at a constant rate over 10y... AV Tutukov,LR Yungelson - 《Vizier ...
dates back to the work of Einstein in 19361. In this pioneering work he considered the case where both the lens and the magnified background source were stars in our Galaxy. Einstein concluded that the deflection angles were too small to be resolved with astronomical instruments. It was Zwicky...
Answer and Explanation:1 {eq}\dfrac{dp}{dt}=0.02p+11t\\ {/eq} This is a linear equation of the from {eq}y'\left ( x \right )+p\left ( x \right ).y\left ( x \right )=q\left...
The name Population III arose because astronomers had already classed the stars of theMilky Wayas Population I (stars like the Sun, rich in heavier elements and forming the disc) and Population II (older stars, with low heavy-element content, and found in the Milky Way bulge and hal...