Call to Adopt a Nominal Set of Astrophysical Parameters and Constants to Improve the Accuracy of Fundamental Physical Properties of Stars

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10103403" target="_blank" >RIV/00216208:11320/11:10103403 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1086/661258" target="_blank" >http://dx.doi.org/10.1086/661258</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1086/661258" target="_blank" >10.1086/661258</a>

Result language
angličtina
Original language name
Call to Adopt a Nominal Set of Astrophysical Parameters and Constants to Improve the Accuracy of Fundamental Physical Properties of Stars
Original language description
The increasing precision of astronomical observations of stars and stellar systems is gradually getting to a level where the use of slightly different values of the solar mass, radius, and luminosity, as well as different values of fundamental physical constants, can lead to measurable systematic differences in the determination of basic physical properties. An equivalent issue with an inconsistent value of the speed of light was resolved by adopting a nominal value that is constant and has no error associated with it. Analogously, we suggest that the systematic error in stellar parameters may be eliminated by (1) replacing the solar radius R(circle dot) and luminosity L(circle dot) by the nominal values that are by definition exact and expressed in SIunits: 1 R(circle dot)(N) = 6.95508 x 10(8) m and 1 L(circle dot)(N) = 3.846 x 10(26) W; (2) computing stellar masses in terms of M(circle dot) by noting that the measurement error of the product GM(circle dot) is 5 orders of magnitude s
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Project
<a href="/en/project/GAP209%2F10%2F0715" target="_blank" >GAP209/10/0715: Accurate physical properties of hot stars based on binary and multiple star studies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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