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The $\mu$ and $\nu$ rings of Uranus form a secondary ring-moon system with the satellites Puck, Mab,Portia, and Rosalind. These rings are tenuous and dominated by micrometric particles, which can be strongly disturbed by the solar radiation…

Earth and Planetary Astrophysics · Physics 2013-07-12 R. Sfair

We report the first measurement of polarized thermal dust emission toward the entire early and massive Infrared Dark Cloud G11.11$-$0.12 taken by the polarimeter SOFIA/HAWC+ at 214 $\mu m$ wavelength. Magnetic fields (B-fields) obtained…

Context. While supernova remnants (SNRs) are observed to produce up to 1 M$_\odot$ of dust, the amount of dust destroyed by the forward shock (FS) is poorly constrained, raising the question whether they are net dust producers or…

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

The observations of the solar F-corona from space are reviewed emphasizing the 25 years of continuous monitoring achieved by the LASCO-C2 and C3 coronagraphs. Our work includes images obtained by the Clementine cameras, and the…

Solar and Stellar Astrophysics · Physics 2022-10-05 Philippe Lamy , Hugo Gilardy , Antoine Llebaria

FePt nanoparticles are known to exhibit reduced L1$_0$ order with decreasing particle size. The reduction in order reduces the magnetic anisotropy and the thermal stability of the direction of magnetization of the particle. The phenomenon…

Mesoscale and Nanoscale Physics · Physics 2009-11-18 Roman V. Chepulskii , W. H. Butler , A. van de Walle , Stefano Curtarolo

The polarisation of light induced by aligned interstellar dust serves as a significant tool in investigating cosmic magnetic fields, dust properties, and poses a challenge in characterising the polarisation of the cosmic microwave…

Sun-like stars shed angular momentum due to the presence of magnetised stellar winds. Magnetohydrodynamic models have been successful in exploring the dependence of this "wind-braking torque" on various stellar properties, however the…

Solar and Stellar Astrophysics · Physics 2023-05-31 Adam J. Finley , Allan Sacha Brun

The effect of solar or stellar radiation on dust particles' trajectories (the Poynting-Robertson drag) has been studied by a number of authors and applied to interplanetary dust dynamics in numerical computations. Meanwhile some important…

Astrophysics · Physics 2009-10-30 N. N. Gor'kavyi , L. M. Ozernoy , J. C. Mather , T. Taidakova

Dust storms are common in arid zones on the earth and others planets such as Mars. The impact of dust storms on solar radiation has significant implications for solar power plants and autonomous vehicles powered by solar panels. This paper…

Atmospheric and Oceanic Physics · Physics 2018-09-03 B. Ravindra

Planet-forming discs in sufficiently strong UV environments lose gas in external photoevaporative winds. Dust can also be entrained within these winds, which has consequences for the possible solids reservoir for planet formation, and…

Earth and Planetary Astrophysics · Physics 2025-04-09 S. Paine , T. J. Haworth , R. P. Nelson

Magnetic fields are thought to influence the formation and evolution of circumstellar envelopes around evolved stars. Thermal dust polarization from aligned grains is a promising tool for probing magnetic fields and dust properties in these…

Solar and Stellar Astrophysics · Physics 2024-12-05 Bao Truong , Thiem Hoang , Nguyen Chau Giang , Pham Ngoc Diep , Dieu D. Nguyen , Nguyen Bich Ngoc

Context. Recent observations of dust ejections from active asteroids, including (3200) Phaethon, have drawn considerable interest from planetary astronomers studying the generation and removal of small dust particles on asteroids. Aims. In…

Earth and Planetary Astrophysics · Physics 2021-10-20 Yoonsoo P. Bach , Masateru Ishiguro

With Planck and Herschel, we now have the spectral coverage and angular resolution required to observe dense and cold molecular clouds. As these clouds are optically thick at short wavelength but optically thin at long wavelength, it is…

Transitional discs have central regions characterised by significant depletion of both dust and gas compared to younger, optically-thick discs. However, gas and dust are not depleted by equal amounts: gas surface densities are typically…

Solar and Stellar Astrophysics · Physics 2020-09-02 Mark R. Krumholz , Michael J. Ireland , Kaitlin M. Kratter

Observations of protoplanetary disks (PPDs) at sub-mm wavelengths suggest that polarisation is caused by scattering of thermal radiation. Most of the dust models that are used to explain these observations have major drawbacks: They either…

Solar and Stellar Astrophysics · Physics 2021-04-21 Robert Brunngräber , Sebastian Wolf

Possible saturation of betatron acceleration of dust particles behind strong shock fronts from supernovae is considered. It is argued that the efficiency of the nonthermal dust destruction should be substantially lower than the value…

Astrophysics of Galaxies · Physics 2015-05-18 L. V. Kostyukova , V. V. Prudskikh , Yu. A. Shchekinov , ;

The inner Solar System is depleted in refractory carbon in comparison to the interstellar medium and the depletion likely took place in the protoplanetary disk phase of the Solar System. We study the effect of photolysis of refractory…

Earth and Planetary Astrophysics · Physics 2025-04-30 Vignesh Vaikundaraman , Joanna Drazkowska , Fabian Binkert , Til Birnstiel , Anna Miotello

Context: The sizes of dust in the interstellar medium follows a distribution where most of the dust mass is in smaller grains. However, the re-distribution from larger grains towards smaller sizes especially by means of rotational…

Astrophysics of Galaxies · Physics 2024-12-04 Stefan Reissl , Philipp Nguyen , Lucas M. Jordan , Ralf S. Klessen

We present resolved $3.6-250~\mu$m dust spectral energy distribution (SED) fitting for $\sim 800$ nearby galaxies. We measure the distribution of radiation field intensities heating the dust, the dust mass surface density ($\Sigma_{\rm…