An alternative explanation of the orbital Expansion of Titan and other bodies in the Solar system

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985840%3A_____%2F22%3A00558114" target="_blank" >RIV/67985840:_____/22:00558114 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1134/S0202289322020086" target="_blank" >https://doi.org/10.1134/S0202289322020086</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1134/S0202289322020086" target="_blank" >10.1134/S0202289322020086</a>

Jazyk výsledku

angličtina

Název v původním jazyce

An alternative explanation of the orbital Expansion of Titan and other bodies in the Solar system

Popis výsledku v původním jazyce

Recently it was found from the Cassini data that the mean recession speed of Titan from Saturn is v=11.3±2.0 cm/yr, which corresponds to a tidal quality factor of Saturn Q≅100 while the standard estimate yields Q≥6×104. It was assumed that such a large speed v is due to a resonance locking mechanism of five inner mid-sized moons of Saturn. In this paper, we show that an essential part of v may come from a local Hubble expansion, where the Hubble–Lemaître constant H0, recalculated to the Saturn–Titan distance D, is 8.15 cm/(yr D). Our hypothesis is based on many other observations showing a slight expansion of the Solar system and also of our Galaxy at a rate comparable with H0. We demonstrate that the large disproportion in estimating the Q factor can be just caused by the local expansion effect.

Název v anglickém jazyce

An alternative explanation of the orbital Expansion of Titan and other bodies in the Solar system

Popis výsledku anglicky

Recently it was found from the Cassini data that the mean recession speed of Titan from Saturn is v=11.3±2.0 cm/yr, which corresponds to a tidal quality factor of Saturn Q≅100 while the standard estimate yields Q≥6×104. It was assumed that such a large speed v is due to a resonance locking mechanism of five inner mid-sized moons of Saturn. In this paper, we show that an essential part of v may come from a local Hubble expansion, where the Hubble–Lemaître constant H0, recalculated to the Saturn–Titan distance D, is 8.15 cm/(yr D). Our hypothesis is based on many other observations showing a slight expansion of the Solar system and also of our Galaxy at a rate comparable with H0. We demonstrate that the large disproportion in estimating the Q factor can be just caused by the local expansion effect.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Gravitation & Cosmology

ISSN

0202-2893

e-ISSN

1995-0721

Svazek periodika

28

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

RU - Ruská federace

Počet stran výsledku

11

Strana od-do

122-132

Kód UT WoS článku

000806798200005

EID výsledku v databázi Scopus

2-s2.0-85131578683