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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

The Parker Solar Probe (PSP) spacecraft has transited the inner-most regions of the zodiacal cloud and detects impacts to the spacecraft body via its electric field instrument. Multiple dust populations have been proposed to explain the PSP…

Earth and Planetary Astrophysics · Physics 2024-12-09 J. R. Szalay , P. Pokorný , D. M. Malaspina

Combining dynamical models of dust from Jupiter Family Comets and Halley-type Comets, we demonstrate that the seasonal variation of the dust/meteoroid environment at Mercury is responsible for producing the dawn-dusk asymmetry in Mercury's…

Earth and Planetary Astrophysics · Physics 2017-06-28 Petr Pokorný , Menelaos Sarantos , Diego Janches

The orbital evolution of particles released from the surface of a rubble-pile body by Earth's tides during flyby within the Roche limit is studied. Test particles initially placed on the surface leave the surface and escape the parent body.…

Earth and Planetary Astrophysics · Physics 2011-04-20 Leonard Kornoš , Juraj Tóth , Peter Vereš

Currently the only method to establish the prevalence of particles, space debris or meteoroids, sized between 1 micrometre and a few centimetres, in Earth orbit is by instruments or witness plates dedicated to in-situ detection. Derived…

Earth and Planetary Astrophysics · Physics 2024-09-24 Soumaya Azzi , Xanthi Oikonomidou , Stijn Lemmens

Context: High-resolution images of circumstellar debris discs reveal off-centred rings that indicate past or ongoing perturbation, possibly caused by secular gravitational interaction with unseen stellar or substellar companions. The purely…

Earth and Planetary Astrophysics · Physics 2017-08-30 T. Löhne , A. V. Krivov , F. Kirchschlager , J. A. Sende , S. Wolf

Dust measurements in the outer solar system are reviewed. Only the plasma wave instrument on board Voyagers 1 and 2 recorded impacts in the Edgeworth-Kuiper belt (EKB). Pioneers 10 and 11 measured a constant dust flux of 10-micron-sized…

Astrophysics · Physics 2009-10-31 Eberhard Grün , Harald Krüger , Markus Landgraf

Small bodies in the solar system are conventionally classified into asteroids and comets. However, it is recently found that a small number of objects can exhibit properties of both asteroids and comets. Some are more consistent with…

Earth and Planetary Astrophysics · Physics 2018-12-05 Quan-Zhi Ye

Near Earth Objects (NEOs) are a transient population of small bodies with orbits near or in the terrestrial planet region. They represent a mid-stage in the dynamical cycle of asteroids and comets, which starts with their removal from the…

We describe how meteors recorded at the Earth can be used to partly reconstruct the meteoroid environments of the planets if a large sample (i.e. millions of orbits at a minimum) is available. The process involves selecting from the…

Earth and Planetary Astrophysics · Physics 2017-07-19 Paul Wiegert , Peter Brown , Petr Pokorny , Karina Lenartowicz , Zbyszek Krzeminski

NEOs come close to the Earth's orbit so that any dust ejected from them, might be seen as a meteor shower. Orbits evolve rapidly, so that a similarity of orbits at one given time is not suffcient to prove a relationship, orbital evolution…

Earth and Planetary Astrophysics · Physics 2015-06-18 Tadeusz J. Jopek , Iwan P. Williams

The orbital evolution of Jupiter-family comets (JFCs), resonant asteroids, and asteroidal, trans-Neptunian, and cometary dust particles under the gravitational influence of planets was integrated. For dust particles we also considered…

Astrophysics · Physics 2010-12-01 S. I. Ipatov , J. C. Mather

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

In a previous paper we simulated the orbital evolution of dust particles from the Jupiter Trojan asteroids ejected by the impacts of interplanetary particles, and evaluated their overall configuration in the form of dust arcs. Here we…

Earth and Planetary Astrophysics · Physics 2018-06-20 Xiaodong Liu , Jürgen Schmidt

The distribution of asteroids across the Main Belt has been studied for decades to understand the compositional distribution and what that tells us about the formation and evolution of our solar system. All-sky surveys now provide orders of…

Earth and Planetary Astrophysics · Physics 2015-06-16 Francesca DeMeo , Benoit Carry

Early-generation in-situ dust detectors in near-Earth space have reported the occurrence of clusters of sub-micron dust particles that seemed unrelated to human spaceflight activities. In particular, data from the impact ionization detector…

Earth and Planetary Astrophysics · Physics 2024-06-13 Max Sommer

Photometry from the Helios and STEREO spacecraft revealed regions of enhanced sky surface-brightness suggesting a narrow circumsolar ring of dust associated with Venus's orbit. We model this phenomenon by integrating the orbits of…

Earth and Planetary Astrophysics · Physics 2019-04-30 Petr Pokorný , Marc J. Kuchner

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

Debris discs are dusty belts of planetesimals around main-sequence stars, similar to the asteroid and Kuiper belts in our solar system. The planetesimals cannot be observed directly, yet they produce detectable dust in mutual collisions.…

Earth and Planetary Astrophysics · Physics 2019-06-26 Nicole Pawellek , Attila Moór , Ilaria Pascucci , Alexander V. Krivov

We compare observations of AGB stars and predictions of the Elitzur & Ivezic (2001) steady-state radiatively driven dusty wind model. The model results are described by a set of similarity functions of a single independent variable, and…

Solar and Stellar Astrophysics · Physics 2015-05-18 Zeljko Ivezic , Moshe Elitzur