Photometric studies of comets at the Kleť Observatory

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00070327%3A_____%2F00%3A00006437" target="_blank" >RIV/00070327:_____/00:00006437 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Photometric studies of comets at the Kleť Observatory

Popis výsledku v původním jazyce

The preliminary results of the comet surface photometry performed in the framework of the small bodies programme of the Klet Observatory are discussed. The integrated brightness of the tail of comet 122P/de Vico has been used for the determination of thedust flow characteristics in the tail. It is shown, that in the dusty tail near coma, where the contribution of small "fluffy" and unstable dust particles to the surface brightness of the tail is substantial, the decrease of integrated brightness with distance indicates effects of some kind of disintegration mechanism. The apparent lifetime of grains inferred from the tail photometry is less than one day at the heliocentric distance 1 AU. This effect might be caused either by sublimation or by electrostatic charge disruption of grains, and even the albedo change should be considered. Since the narrow streams are presented on the tail images of 122P/de Vico obtained with a R filter, a substantial contribution of the ionized molecular sp

Název v anglickém jazyce

Photometric studies of comets at the Kleť Observatory

Popis výsledku anglicky

The preliminary results of the comet surface photometry performed in the framework of the small bodies programme of the Klet Observatory are discussed. The integrated brightness of the tail of comet 122P/de Vico has been used for the determination of thedust flow characteristics in the tail. It is shown, that in the dusty tail near coma, where the contribution of small "fluffy" and unstable dust particles to the surface brightness of the tail is substantial, the decrease of integrated brightness with distance indicates effects of some kind of disintegration mechanism. The apparent lifetime of grains inferred from the tail photometry is less than one day at the heliocentric distance 1 AU. This effect might be caused either by sublimation or by electrostatic charge disruption of grains, and even the albedo change should be considered. Since the narrow streams are presented on the tail images of 122P/de Vico obtained with a R filter, a substantial contribution of the ionized molecular sp

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/GA205%2F96%2F0042" target="_blank" >GA205/96/0042: Planetky a komety: vyhledávání, astrometrie a fyzikální výzkum</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2000

Kód důvěrnosti údajů

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

Název periodika

Contributions of the Astronomical Observatory Skalnaté Pleso

ISSN

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e-ISSN

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Svazek periodika

30

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

7

Strana od-do

5-11

Kód UT WoS článku

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EID výsledku v databázi Scopus

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