Results 11 to 20 of about 2,514,308 (344)

KEPLER INPUT CATALOG: PHOTOMETRIC CALIBRATION AND STELLAR CLASSIFICATION [PDF]

open access: yes, 2011
We describe the photometric calibration and stellar classification methods used by the Stellar Classification Project to produce the Kepler Input Catalog (KIC).
T. Brown   +3 more
semanticscholar   +3 more sources

45. Stellar Classification [PDF]

open access: yesTransactions of the International Astronomical Union, 1982
The years covered in this report (1979-81) have been active ones in the field of stellar classification, as is made obvious in the following sections. In addition to the individual references listed there, a number of symposia, colloquia, and workshops were held during the report period which included papers relevant to stellar classification.
V. Straižys   +8 more
openaire   +2 more sources

Information–Entropy Analysis of Stellar Evolutionary Stages with Application to FS CMa Objects [PDF]

open access: yesEntropy
Theoretical foundations are presented for the application of information–entropy methods from statistical physics to the determination of stellar evolutionary stages. A balance equation involving normalized conditional information and entropy is proposed.
Zeinulla Zhanabaev   +2 more
doaj   +2 more sources

45. Stellar Classification (Classification Stellaire) [PDF]

open access: bronzeTransactions of the International Astronomical Union, 1994
D.J. MacConnel   +6 more
openaire   +2 more sources

Automated Morgan Keenan Classification of Observed Stellar Spectra Collected by the Sloan Digital Sky Survey Using a Single Classifier [PDF]

open access: bronzeAstronomical Journal, 2019
The classification of stellar spectra is a fundamental task in stellar astrophysics. Stellar spectra from the Sloan Digital Sky Survey are applied to standard classification methods, k-nearest neighbors and random forest, to automatically classify the ...
Michael J. Brice, Răzvan Andonie
openalex   +2 more sources

DIVISION G COMMISSION 45: STELLAR CLASSIFICATION [PDF]

open access: bronzeProceedings of the International Astronomical Union, 2015
Commission 45 is solidly anchored in the beginnings of the IAU. It evolved out of Commission 29, which was one of the original commissions and whose title and emphasis was the Spectral Classification of Stars (Transactions of the IAU, Volume I, 1922). C29 was formed with W.S. Adams (Pasadena) as president.
Richard Gray   +9 more
openaire   +3 more sources

Stellar classification from simulated DIVA spectra. I. Solar metallicity stars

open access: yesOpen Astronomy, 1999
. The orbiting telescope with the Double Interferometer for Visual Astrometry (DIVA) will obtain, apart from astrometry, low-resolution spectra (A/AA ~ 20) covering the optical range (350 to 1000 nm) for over 10 million stars.
Elsner B.   +3 more
doaj   +2 more sources

CLASSIFICATION OF STELLAR SPECTRA WITH LOCAL LINEAR EMBEDDING [PDF]

open access: bronze, 2011
We investigate the use of dimensionality reduction techniques for the classification of stellar spectra selected from the SDSS. Using local linear embedding (LLE), a technique that preserves the local (and possibly non-linear) structure within high ...
Scott F. Daniel   +4 more
openalex   +3 more sources

Towards a Multi-Dimensional Stellar Classification System [PDF]

open access: hybridOpen Astronomy, 1997
Stock J.   +4 more
doaj   +2 more sources

Commission No. 45: Stellar Classification (Classification Stellaire) [PDF]

open access: bronzeTransactions of the International Astronomical Union, 1988
R Garrison   +4 more
openaire   +2 more sources

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