Results 21 to 30 of about 670,593 (311)

Fundamental parameters of QCD

open access: yes, 2002
Contribution to proceedings of NIC Symposium 2001, 13 pages, 7 figures, uses nic-series ...
Sommer, Rainer, Wittig, Hartmut
openaire   +3 more sources

The fundamental plane at different cosmic epochs with the EAGLE simulation [PDF]

open access: yes, 2023
openThe thesis purpose is to investigate the correlation between different structural parameters of massive galaxies at different redshift, in particular the fundamental plane, in the hydrodynamical simulatoin of the EAGLE project run by the Virgo ...
BREVI, FRANCESCO
core  

Spectral Classification of Faint Carbon Stars

open access: yesOpen Astronomy, 2003
R-N classification of 187 faint carbon stars is based on the classical criteria adjusted to the yellow-red spectral region, with two new criteria added - the ratios of the red CN bands 6206/6332 (Å) and 6478/6631 (Å).
Eglitis I., Eglite M., Balklavs A.
doaj   +1 more source

Luminosity and Intrinsic Color Calibration of Main-Sequence Stars With 2Mass Photometry: All Sky Local Extinction

open access: yesOpen Astronomy, 2003
We present a new color index vs. absolute magnitude calibration of 2MASS JHK photometry. For the A0 to ~G5 and M segments of the main sequence information on the amount of interstellar extinction and its location in space may be obtained.
Knude Jens, Fabricius Claus
doaj   +1 more source

Analysis of Interstellar Extinction towards the Hypergiant Cyg OB2 No. 12

open access: yesOpen Astronomy, 2016
The Cyg OB2 stellar association hosts an entire zoo of unique objects, and among them – an enigmatic star Cyg OB2 No. 12 (Schulte 12, MT 304). MT 304 is enigmatic not only due to its highest luminosity (according to various estimates, it is one of the ...
Maryeva O. V.   +3 more
doaj   +1 more source

Fundamental parameters from precision tests [PDF]

open access: yesJournal of Physics G: Nuclear and Particle Physics, 2002
9 pages, 4 figures, Talk presented at the Symposium in Honor of Alberto Sirlin, NYU, NY, October ...
openaire   +2 more sources

On the fundamental nature of the state parameter [PDF]

open access: yesGéotechnique, 2022
The state parameter ψ is widely used for soil characterisation and as a controlling parameter in modern constitutive understanding of soil, but there remains a perception that the control of soil strength by ψ is merely that of a correlation. This perception possibly stems from ψ having been introduced from ‘principles’ of critical state theory rather
openaire   +1 more source

Wide Field Multicolor CCD Photometry in the Vicinity of the Open Cluster King 7

open access: yesOpen Astronomy, 2010
We present the results of CCD photometry in the seven-color Vilnius system for 1549 stars down to V ∼16 mag in a 1.5 square degree field around the cluster King 7, at the Perseus and Camelopardalis border.
Zdanavičius J.   +3 more
doaj   +1 more source

Fundamental parameters of B type stars [PDF]

open access: yesProceedings of the International Astronomical Union, 2014
AbstractFundamental parameters of 26 well-studied sharp-lined single early B-type stars in OB associations and in the field within a distance of ≤400 pc from the Sun are compared to high-precision data from detached eclipsing binaries (DEBs). Fundamental parameters are derived from accurate and precise atmospheric parameters determined earlier by us ...
openaire   +1 more source

Solar astrophysical fundamental parameters [PDF]

open access: yesSPIE Proceedings, 2014
The accurate determination of the solar photospheric radius has been an important problem in astronomy for many centuries. From the measurements made by the PICARD spacecraft during the transit of Venus in 2012, we obtained a solar radius of 696,156±145 kilometres. This value is consistent with recent measurements carried out atmosphere.
Meftah, Mustapha   +2 more
openaire   +2 more sources

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