Results 31 to 40 of about 2,514,308 (344)

Hybrid Strategy for Automatic Stellar Classification

open access: goldProceedings of the 1st International Workshop on Artificial Neural Networks and Intelligent Information Processing, 2005
Alejandra Rodrı́guez   +4 more
openaire   +2 more sources

Commission 45: Stellar Classification: (Classification Stellaire) [PDF]

open access: yesTransactions of the International Astronomical Union, 2000
This report does not intend to give a complete review of all the papers that appeared since the previous General Assembly but to focus on a few subjects only.
Michèle Gerbaldi   +10 more
openaire   +1 more source

The Nature of Blue Stars with Mid-infrared Excesses in the Large Magellanic Cloud

open access: yesThe Astrophysical Journal Supplement Series, 2023
We present low-resolution optical spectra and classifications of 92 blue objects with mid-infrared excesses in the Large Magellanic Cloud. The majority of these objects were selected with the criteria of U − B < 0 and V < 17 from the potential young ...
Ryoko Ishioka   +5 more
doaj   +1 more source

45. Stellar Classification [PDF]

open access: yesTransactions of the International Astronomical Union, 1985
During the report period (1982–1984) several symposia, colloquia, and workshops in the field of stellar classification were held. These include: IAU Symposium No. 111 ”Calibration of Fundamental Stellar Quantities” (Como, May 24 29, 1984, ed. D. S. Hayes et al.), IAU Colloquium No.
V. Straižys   +8 more
openaire   +1 more source

The Carnegie-Irvine Galaxy Survey. X. Bulges in Stellar Mass–based Scaling Relations

open access: yesThe Astrophysical Journal Supplement Series, 2022
We measure optical colors for the bulges of 312 disk galaxies from the Carnegie-Irvine Galaxy Survey and convert their previously available R -band structural parameters to stellar-mass parameters.
Hua Gao, Luis C. Ho, Zhao-Yu Li
doaj   +1 more source

Stellar classification from single-band imaging using machine learning [PDF]

open access: yes, 2016
Information on the spectral types of stars is of great interest in view of the exploitation of space-based imaging surveys. In this article, we investigate the classification of stars into spectral types using only the shape of their diffraction pattern ...
T. Kuntzer, M. Tewes, F. Courbin
semanticscholar   +1 more source

COMMISSION 45: STELLAR CLASSIFICATION [PDF]

open access: yesProceedings of the International Astronomical Union, 2010
The business meeting of Commission 45 was held on Friday, 7 August. It was attended by the Vice-President of the Commission (who chaired the meeting in the absence of the President) as well as nine other members of the Commission. Attendance was limited, as usual, by the unavoidable occurrence of parallel sessions.
Sunetra Giridhar   +9 more
openaire   +1 more source

The impact of mass loss on star cluster formation. II. Numerical N-body integration & further applications [PDF]

open access: yes, 2002
We subject to an N-body numerical investigation our analysis of Paper I on the survival of stellar clusters undergoing rapid mass loss. We compare analytical tracks of bound mass-fraction {\it vs} star formation efficiency $\epsilon$ to those obtained ...
Adams   +30 more
core   +3 more sources

POSYDON: A General-purpose Population Synthesis Code with Detailed Binary-evolution Simulations

open access: yesThe Astrophysical Journal Supplement Series, 2023
Most massive stars are members of a binary or a higher-order stellar system, where the presence of a binary companion can decisively alter their evolution via binary interactions. Interacting binaries are also important astrophysical laboratories for the
Tassos Fragos   +24 more
doaj   +1 more source

Spectral Classification of Galaxies Along the Hubble Sequence [PDF]

open access: yes, 1995
We develop a straightforward and quantitative two-step method for spectroscopically classifying galaxies from the low signal-to-noise (S/N) optical spectra typical of galaxy redshift surveys. First, using \chi^2-fitting of characteristic templates to the
Willick, Jeffrey A.   +2 more
core   +2 more sources

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