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In this paper we show that Sun-viewing images obtained by the Mars Science Laboratory (MSL) Navigation Cameras (Navcam) can be used for retrieving the dust optical depth and constrain the aerosol physical properties at Gale Crater by…

地球与行星天体物理 · 物理学 2020-09-02 H. Chen-Chen , S. Perez-Hoyos , A. Sanchez-Lavega

The key planet-formation processes in protoplanetary disks remain an active matter of research. One promising mechanism to radially and azimuthally trap millimeter-emitting dust grains, enabling them to concentrate and grow into…

Magnetically and thermally driven disk winds have gained popularity in the light of the current paradigm of low viscosities in protoplanetary disks that nevertheless present large accretion rates even in the presence of inner cavities. The…

地球与行星天体物理 · 物理学 2022-03-14 Peter J. Rodenkirch , Cornelis P. Dullemond

Global and mesoscale models represent the background (slowly varying) winds on Mars, but short timescale wind variability is not explicitly represented. The local wind erosion and dust deposition model can be useful for more accurate local…

地球与行星天体物理 · 物理学 2020-08-06 N. Deniskina

In most studies of dust in galaxies, dust is only detected from its emission to approximately the optical radius of the galaxy. By combining the signal of 110 spiral galaxies observed as part of the Herschel Reference Survey, we are able to…

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…

天体物理学 · 物理学 2007-05-23 Harald Krueger , Eberhard Gruen

Context. Findings by the Helios and STEREO mission have indicated the presence of a resonant circumsolar ring of dust associated with Venus. Attempts to model this phenomenon as an analogue to the resonant ring of Earth - as a result of…

地球与行星天体物理 · 物理学 2020-03-04 Maximilian Sommer , Hajime Yano , Ralf Srama

We present the results from an analysis of deep Herschel Space Observatory observations of six nearby dwarf galaxies known to host galactic-scale winds. The superior far-infrared sensitivity and angular resolution of Herschel have allowed…

Interplanetary dust in the inner solar system originates from multiple sources, including short-period comets and main-belt asteroids. In this work, we focus specifically on the dynamical evolution of asteroid-derived dust using N-body…

地球与行星天体物理 · 物理学 2026-05-13 Aanchal Sahu , Jayesh Pabari

Characterizing the Martian atmosphere is an essential objective to understand its meteorology and its climate. The lower atmosphere (< 40 km) and middle atmosphere (40-80 km) of Mars appear dynamically coupled at much higher levels than in…

天体物理学 · 物理学 2016-08-14 R. Moreno , E. Lellouch , T. Encrenaz , F. Forget , E. Chassefiere , F. Hourdin , Stéphane Guilloteau

The atmospheric pressure fluctuations on Mars induce an elastic response in the ground that creates a ground tilt, detectable as a seismic signal on the InSight seismometer SEIS. The seismic pressure noise is modeled using Large Eddy…

The eccentric WR+O binary system WR 140 produces dust for a few months at intervals of 7.94 yrs coincident with periastron passage. We present the first resolved images of this dust shell, at binary phases ~0.039 and ~0.055, using aperture…

天体物理学 · 物理学 2009-11-07 J. D. Monnier , P. G. Tuthill , W. C. Danchi

Galactic interstellar dust (ISD) is the major ingredient in planetary formation. However, information on this important material has been extremely limited. Recently the Ulysses dust detector has identified and measured interstellar dust…

Laboratory experiments show that dusty bodies in a gaseous environment eject dust particles if they are illuminated. We find that even more intense dust eruptions occur when the light source is turned off. We attribute this to a compression…

地球与行星天体物理 · 物理学 2011-02-23 Thorben Kelling , Gerhard Wurm , Miroslav Kocifaj , Jozef Klacka , Dennis Reiss

The Ulysses spacecraft has been orbiting the Sun on a highly inclined ellipse since it encountered Jupiter in February 1992. Since then it made almost three revolutions about the Sun. Here we report on the final three years of data taken by…

Large scale outflows of different gas phases are ubiquitous in the host galaxies of active galactic nuclei (AGN). Despite their many differences, they share a common property - they all contain dust. The dust is carried with the outflow,…

星系天体物理 · 物理学 2018-11-07 Dalya Baron , Hagai Netzer

This paper presents the development of an in situ measurement system known as the Debris Resistive Acoustic Grid Orbital Navy/NASA Sensor (DRAGONS). The DRAGONS system is designed to detect impacts caused by particles ranging from 50…

系统与控制 · 计算机科学 2017-01-03 Michael A. Tsao , Hau T. Ngo , Robert D. Corsaro , Christopher R. Anderson

We investigate Gravity Waves (GWs) in the lower atmosphere of Mars based on pressure timeseries acquired by the InSight lander. We compile a climatology showing that most GW activity detected at the InSight landing site takes place after…

地球与行星天体物理 · 物理学 2025-01-22 J. Hernández-Bernal , A. Spiga , A. Chatain , J. Pla-García , D. Banfield

In the early 1990s, contemporary interstellar dust (ISD) penetrating deep into the heliosphere was identified with the in-situ dust detector on board the Ulysses spacecraft. Between 1992 and the end of 2007 Ulysses monitored the ISD stream.…

地球与行星天体物理 · 物理学 2015-10-22 Harald Krüger , Peter Strub , Eberhard Gruen , Veerle J. Sterken

Observations across the electromagnetic spectrum of radiative processes involving interstellar dust -- emission, extinction, and scattering -- are used to constrain the parameters of dust models and more directly to aid in foreground…