Internal structure and physical properties of the Asteroid 2008 TC(3) inferred from a study of the Almahata Sitta meteorites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F11%3A00367277" target="_blank" >RIV/67985815:_____/11:00367277 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985831:_____/11:00367277

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.icarus.2011.01.037" target="_blank" >http://dx.doi.org/10.1016/j.icarus.2011.01.037</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.icarus.2011.01.037" target="_blank" >10.1016/j.icarus.2011.01.037</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Internal structure and physical properties of the Asteroid 2008 TC(3) inferred from a study of the Almahata Sitta meteorites

Popis výsledku v původním jazyce

The density measurements of Almahata Sitta ureilites reveal a bulk density of 3.1 g/cm3. This value, together with the 2008 TC3 asteroid shape model and albedo, was used to estimate the asteroid?s mass. Based on the study of recovered meteorites and theatmospheric entry observations the asteroid 2008 TC3 is compositionally heterogeneous and of low mechanical strength. Thus we consider the presence of significant macroporosity likely, lowering asteroid?s bulk density compared to that of the Almahata Sitta ureilites. Most realistic albedos lie in a range of 0.09 0.2 and the presence of significant macroporosity leads to mass estimates below 20 x 103 kg, which is lower than previously estimated. The presence of a non ureilitic fraction and space weathering may affect the albedo and also influence the mass estimates. However, from current data it is not possible to quantify this effect.

Název v anglickém jazyce

Internal structure and physical properties of the Asteroid 2008 TC(3) inferred from a study of the Almahata Sitta meteorites

Popis výsledku anglicky

The density measurements of Almahata Sitta ureilites reveal a bulk density of 3.1 g/cm3. This value, together with the 2008 TC3 asteroid shape model and albedo, was used to estimate the asteroid?s mass. Based on the study of recovered meteorites and theatmospheric entry observations the asteroid 2008 TC3 is compositionally heterogeneous and of low mechanical strength. Thus we consider the presence of significant macroporosity likely, lowering asteroid?s bulk density compared to that of the Almahata Sitta ureilites. Most realistic albedos lie in a range of 0.09 0.2 and the presence of significant macroporosity leads to mass estimates below 20 x 103 kg, which is lower than previously estimated. The presence of a non ureilitic fraction and space weathering may affect the albedo and also influence the mass estimates. However, from current data it is not possible to quantify this effect.

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

—

Návaznosti

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

Icarus

ISSN

0019-1035

e-ISSN

—

Svazek periodika

212

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

4

Strana od-do

697-700

Kód UT WoS článku

000289178100021

EID výsledku v databázi Scopus

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