English
Related papers

Related papers: Dust as the cause of spots on Jupiter

200 papers

We review the composition of Jupiter-family comet dust as inferred from infrared spectroscopy. We find that Jupiter-family comets have 10 micron silicate emission features with fluxes roughly 20-25% over the dust continuum (emission…

Astrophysics · Physics 2015-05-13 Michael S. Kelley , Diane H. Wooden

Models of the zodiacal cloud's thermal emission and sporadic meteoroids suggest Jupiter-family comets (JFCs) as the dominant source of interplanetary dust. However, comet sublimation is insufficient to sustain the quantity of dust presently…

Earth and Planetary Astrophysics · Physics 2021-12-15 Jessica K. Rigley , Mark C. Wyatt

Cosmic collisions on planets cause detectable optical flashes that range from terrestrial shooting stars to bright fireballs. On June 3, 2010 a bolide in Jupiter's atmosphere was simultaneously observed from the Earth by two amateur…

Spacecraft investigations during the last ten years have vastly improved our knowledge about dust in the Jovian system. All Galilean satellites, and probably all smaller satellites as well, are sources of dust in the Jovian system. In-situ…

Astrophysics · Physics 2007-05-23 Harald Krueger , Eberhard Gruen

Future direct observations of extrasolar Earth-sized planets in the habitable zone could be hampered by a worrisome source of noise, starlight-reflecting exozodiacal dust. Mid-infrared surveys are currently underway to constrain the amount…

Solar and Stellar Astrophysics · Physics 2015-06-23 Christopher C. Stark , Marc J. Kuchner , Andrew Lincowski

As comets journey into the inner solar system, they deliver particulates and volatile gases into their comae that reveal the most primitive materials in the solar system. Cometary dust particles provide crucial information for assessing the…

Earth and Planetary Astrophysics · Physics 2023-09-28 David E. Harker , Diane H. Wooden , Michael S. P. Kelley , Charles E. Woodward

The day and nightside temperatures of hot Jupiters are diagnostic of heat transport processes in their atmospheres. Recent observations have shown that the nightsides of hot Jupiters are a nearly constant 1100 K for a wide range of…

Earth and Planetary Astrophysics · Physics 2021-09-08 Peter Gao , Diana Powell

Fractions of asteroidal particles, particles originating beyond Jupiter's orbit (including trans-Neptunian particles), and cometary particles originating inside Jupiter's orbit among zodiacal dust are estimated to be about 1/3 each, with a…

Astrophysics · Physics 2010-11-29 S. I. Ipatov

Video observations of Jupiter obtained by amateur astronomers over the past eight years have shown five flashes of light of 1-2 s. The first three of these events occurred on 3 June 2010, 20 August 2010, and 10 September 2012. Previous…

The irregular satellites of Jupiter produce dust particles through the impact of interplanetary micrometeoroids. In this paper, the dynamics of these particles is studied by both high-accuracy numerical simulation and analytical theory, in…

Earth and Planetary Astrophysics · Physics 2024-02-07 Zhenghan Chen , Kun Yang , Xiaodong Liu

We obtained low resolution (R = 100) mid-infrared (8-13 micron wavelengths) spectra of 8 nearby young main sequence stars with the Keck 1 telescope and Long-Wavelength Spectrometer (LWS) to search for 10 micron silicate (Si-O stretch)…

Astrophysics · Physics 2015-06-24 Eric Gaidos , Christopher Koresko

The zodiacal cloud is a thick circumsolar disk of small debris particles produced by asteroid collisions and comets. Here, we present a zodiacal cloud model based on the orbital properties and lifetimes of comets and asteroids, and on the…

Earth and Planetary Astrophysics · Physics 2014-11-20 David Nesvorny , Peter Jenniskens , Harold F. Levison , William F. Bottke , David Vokrouhlicky

We report on dust measurements obtained during the seventh orbit of the Galileo spacecraft about Jupiter. %which had a close flyby at Ganymede. The most prominent features observed are highly time variable dust streams recorded throughout…

Astrophysics · Physics 2015-06-24 H. Krüger , E. Grün , A. Graps , A. Heck , S. Lammers

Atmospheric compositions offer valuable clues to planetary formation and evolution. Jupiter has been the most well-studied giant planet in terms of its atmosphere; however, the origin of the Jovian atmospheric composition remains a puzzle…

Earth and Planetary Astrophysics · Physics 2021-07-07 Kazumasa Ohno , Takahiro Ueda

The measurements of cosmic interplanetary dust by the instruments on board the Pioneer 10 and 11 spacecraft contain the dynamical signature of dust generated by Edgeworth-Kuiper Belt objects, as well as short period Oort Cloud comets and…

Astrophysics · Physics 2016-08-16 M. Landgraf , J. -C. Liou , H. A. Zook , E. Grün

The detectability of planetesimal impacts on imaged exoplanets can be measured using Jupiter during the 1994 comet Shoemaker-Levy 9 events as a proxy. By integrating the whole planet flux with and without impact spots, the effect of the…

Earth and Planetary Astrophysics · Physics 2015-09-30 Laura Flagg , Alycia J. Weinberger , Keith Matthews

Tiny meteoroids entering the Earth's atmosphere and inducing meteor showers have long been thought to originate partly from cometary dust. Together with other dust particles, they form a huge cloud around the Sun, the zodiacal cloud. From…

Earth and Planetary Astrophysics · Physics 2020-05-06 Anny-Chantal Levasseur-Regourd , Clément Baruteau , Jérémie Lasue , Julien Milli , Jean-Baptiste Renard

Dust absorption is invoked in a number of contexts for hiding a star that has survived some sort of transient event from view. Dust formed in a transient is expanding away from the star and, in spherical models, the mass and energy budgets…

Solar and Stellar Astrophysics · Physics 2023-05-23 C. S. Kochanek

Comets can be divided into two groups: type I, characterized by high gas/dust ratio, low polarization, and a weak or absent 10 micron silicate feature, and type II, for which a low gas/dust ratio, high polarization, and strong silicate…

Astrophysics · Physics 2009-11-13 L. Kolokolova , H. Kimura , N. Kiselev , V. Rosenbush

Events which meet certain criteria from star tracker images onboard the Juno spacecraft have been proposed to be due to interplanetary dust particle impacts on its solar arrays. These events have been suggested to be caused by particles…

Earth and Planetary Astrophysics · Physics 2022-02-07 Petr Pokorný , Jamey R. Szalay , Mihály Horányi , Marc J. Kuchner
‹ Prev 1 2 3 10 Next ›