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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

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Projekt

<a href="/cs/project/GAP209%2F10%2F0715" target="_blank" >GAP209/10/0715: Přesné fyzikální vlastnosti horkých hvězd získané studiem dvojhvězd a vícenásobných soustav</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Publications of the Astronomical Society of the Pacific

ISSN

0004-6280

e-ISSN

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Svazek periodika

123

Číslo periodika v rámci svazku

906

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

976-980

Kód UT WoS článku

000294252100011

EID výsledku v databázi Scopus

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