/ftp/cats/J_other/AstBu/72.51



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J/other/AstBu/72.51  LAMOST stars radii, masses, luminosities (Sichevskij, 2017)
The following files can be converted to FITS (extension .fit or fit.gz)
	table1.dat
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Query from: http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J/other/AstBu/72.51
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drwxr-xr-x 38 cats archive 4096 Aug 6 08:34 [Up] drwxr-xr-x 3 cats archive 276 May 26 2021 [TAR file] -rw-r--r-- 1 cats archive 472 Mar 21 2017 .message -r--r--r-- 1 cats archive 5333 Mar 21 2017 ReadMe -rw-r--r-- 1 cats archive 2580 Mar 21 2017 +footg5.gif -rw-r--r-- 1 cats archive 36059 Mar 21 2017 +footg8.gif -r--r--r-- 1 cats archive 42523600 Mar 20 2017 table1.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe : J/other/AstBu/72.51 LAMOST stars radii, masses, luminosities (Sichevskij, 2017) ================================================================================ Estimates of the radii, masses, and luminosities of LAMOST stars. Sichevskij S.G. <Astrophys. Bull., 72, 51-57 (2017)> =2017AstBu..72...51S (SIMBAD/NED BibCode) ================================================================================ ADC_Keywords: Stars, diameters ; Stars, masses ; Stars, luminous Keywords: stars: fundamental parameters - methods: statistical - techniques: spectroscopic Abstract: Based on the spectral observations of the LAMOST (DR2) survey, the radii, masses, and luminosities of 700480 stars were estimated. These stars belong to spectral types A, F, G, and K, and have metallicities between -0.845 and 0.0. To determine the properties of the stars, we used up-to-date modelsof the stellar interior structure, computed with account for the stellar evolution rate and the initial mass function. The use of evolutionary estimates for two types of stars - with and without rotation - allowed us to account for the uncertainty associated with the lack of data on the rotation velocity of the stars under consideration. The obtained stellar radii, together with the photometric estimates of interstellar extinction and angular diameters can be used to study the dependence of interstellar extinction on distance as well as to estimate the stellar distances. Description: File table1 contains estimates of the radii, masses, and luminosities for stars of spectral types A, F, G, and K from the LAMOST DR2 survey and the confidence coefficient values (Kd), which allow us to characterize the quality of the interval estimates: the closer Kd is to one, the greater the confidence in the interval estimate.

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