English
Related papers

Related papers: Cosmic Dust: The Ulysses perspective

200 papers

Debris disks are optically thin, almost gas-free dusty disks observed around a significant fraction of main-sequence stars older than about 10 Myr. Since the circumstellar dust is short-lived, the very existence of these disks is considered…

Earth and Planetary Astrophysics · Physics 2015-05-18 Alexander V. Krivov

We develop a 3D dynamical model of dust outflows from galactic discs. The outflows are initiated by multiple SN explosions in a magnetized interstellar medium (ISM) with a gravitationally stratified density distribution. Dust grains are…

Astrophysics of Galaxies · Physics 2014-03-28 S. A. Khoperskov , Yu. A. Shchekinov

We are living in a dusty universe: dust is ubiquitously seen in a wide variety of astrophysical environments, ranging from circumstellar envelopes around cool red giants to supernova ejecta, from diffuse and dense interstellar clouds and…

Astrophysics · Physics 2007-05-23 Aigen Li

We present the results of an 850 micron JCMT/SCUBA survey for dust around 13 nearby solar mass stars. The dust mass sensitivity ranged from 0.005 to 0.16 Earth masses. Three sources were detected in the survey, one of which (HD 107146) has…

Astrophysics · Physics 2009-11-13 Joan Najita , Jonathan P. Williams

In this paper, the dynamical analysis of the Jovian dust originating from the four Galilean moons is presented. High accuracy orbital integrations of dust particles are used to determine their dynamical evolution. A variety of forces are…

Earth and Planetary Astrophysics · Physics 2018-05-02 Xiaodong Liu , Manuel Sachse , Frank Spahn , Jürgen Schmidt

In this analysis we illustrate how the relatively new emission mechanism known as spinning dust can be used to characterize dust grains in the interstellar medium. We demonstrate this by using spinning dust emission observations to…

We report on five years of 3-5 micron photometry measurements obtained by warm Spitzer to track the dust debris emission in the terrestrial zone of HD 166191 in combination with simultaneous optical data. We show that the debris production…

Earth and Planetary Astrophysics · Physics 2022-03-14 Kate Y. L. Su , Grant M. Kennedy , Everett Schlawin , Alan P. Jackson , George H. Rieke

Young exoplanets provide a critical link between understanding planet formation and atmospheric evolution. Direct imaging spectroscopy allows us to infer the properties of young, wide orbit, giant planets with high signal-to-noise. This…

This article gives an overview of the constitution, physical conditions and observables of dust in the interstellar medium of nearby galaxies. We first review the macroscopic, spatial distribution of dust in these objects, and its…

Astrophysics of Galaxies · Physics 2022-08-10 F. Galliano , M. Galametz , A. P. Jones

The solar system's Zodiacal Cloud is visible to the unaided eye, yet the origin of its constituent dust particles is not well understood, with a wide range of proposed divisions between sources in the asteroid belt and Jupiter Family…

Using ISO-ISOPHOT we carried out a survey of almost 150 stars to search for evidence of emission from dust orbiting young main sequence stars, both in clusters and isolated systems. Over half of the detections are new examples of dusty…

Astrophysics · Physics 2010-03-19 C. Spangler , A. I. Sargent , M. D. Silverstone , E. E. Becklin , B. Zuckerman

In recent years, evidence has been obtained that in the outer region of the Solar System (in the inner part of the Oort cloud), at a distance $\sim300-700$ AU from the Sun, there may be a captured planet or a primordial black hole. In this…

Earth and Planetary Astrophysics · Physics 2024-01-10 Yu. N. Eroshenko , E. A. Popova

We present a search for infrared dust emission associated with the Leo cloud, a large intergalactic cloud in the M96 group. Mid-infrared and far-infrared images were obtained with IRAC and MIPS on the Spitzer Space Telescope. Our analysis…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 C. Bot , G. Helou , W. B. Latter , J. Puget , S. Schneider , Y. Terzian

(Abridged) A numerical model of a circumstellar debris disk is developed and applied to observations of the circumstellar dust orbiting beta Pictoris. The model accounts for the rates at which dust is produced by collisions among unseen…

Earth and Planetary Astrophysics · Physics 2015-05-19 Joseph M. Hahn

Absorption lines in the spectra of distant quasars whose sightlines pass through foreground galaxies provide a valuable tool to probe the dust and gas compositions of the interstellar medium (ISM) in galaxies. The first evidence of silicate…

Astrophysics of Galaxies · Physics 2014-05-05 Monique C. Aller , Varsha P. Kulkarni , Donald G. York , Daniel E. Welty , Giovanni Vladilo , Debopam Som

The analysis of non-radiative sources of static or time-dependent gravitational fields in the Solar System is crucial to accurately estimate the free-fall orbits of the LISA space mission. In particular, we take into account the…

General Relativity and Quantum Cosmology · Physics 2015-05-18 Massimo Cerdonio , Fabrizio De Marchi , Roberto De Pietri , Philippe Jetzer , Francesco Marzari , Giulio Mazzolo , Antonello Ortolan , Mauro Sereno

The properties of high latitude dust are of great interest to extragalactic astronomers and cosmologists. It is proposed here that essentially all high Galactic latitude interstellar dust is at a typical temperature of about 20~K (i.e. it…

Astrophysics · Physics 2009-10-28 George F. Smoot

Exozodiacal dust is warm or hot dust found in the inner regions of planetary systems orbiting main sequence stars, in or around their habitable zones. The dust can be the most luminous component of extrasolar planetary systems, but…

ESA has identified interferometry as one of the major goals of the Horizon 2000+ programme. Infrared interferometers are a highly sensitive astronomical instruments that enable us to observe terrestrial planets around nearby stars. In this…

Astrophysics · Physics 2016-08-16 M. Landgraf , R. Jehn , W. Flury , M. Fridlund , A. Karlsson , A. Léger

The JAXA/ISAS spacecraft DESTINY$^+$ will be launched to the active asteroid (3200) Phaethon in 2022. Among the proposed core payload is the DESTINY+ Dust Analyzer (DDA) which is an upgrade of the Cosmic Dust Analyzer flown on the Cassini…

‹ Prev 1 3 4 5 6 7 10 Next ›