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We present best-fit values of porosity -- and the corresponding effective thermal inertiae -- determined from three different depths in Europa's near-subsurface (~1-20 cm). The porosity of the upper ~20 cm of Europa's subsurface varies…

Earth and Planetary Astrophysics · Physics 2024-02-06 A. E. Thelen , K. de Kleer , M. Camarca , A. Akins , M. Gurwell , B. Butler , I. de Pater

We present new thermophysical model (TPM) fits of 1,847 asteroids, deriving thermal inertia, diameter, and Bond and visible geometric albedo. We use thermal flux measurements obtained by the Wide-field Infrared Survey Explorer (WISE; Wright…

Earth and Planetary Astrophysics · Physics 2023-05-04 Denise Hung , Josef Hanuš , Joseph R. Masiero , David J. Tholen

The Tianlai Cylinder Pathfinder is a radio interferometer array designed to test techniques for 21 cm intensity mapping in the post-reionization Universe, with the ultimate aim of mapping the large scale structure and measuring cosmological…

Asteroids smaller than about 100 meters are observed to rotate very fast, with periods often much shorter than the critical limit of 2.2 h. Some of these super-fast rotators can also achieve a very large semi-major axis drift induced by the…

Earth and Planetary Astrophysics · Physics 2023-07-12 Marco Fenucci , Bojan Novaković , Dušan Marčeta

The temporal fluctuations in global mean surface temperature is an example of a geophysical quantity which can be described using the notions of long-range persistence and scale invariance/scaling, but this description has suffered from…

Atmospheric and Oceanic Physics · Physics 2017-10-11 Hege-Beate Fredriksen , Martin Rypdal

We use data from Cassini's Composite Infrared Spectrometer CIRS to map Mimas' surface temperatures and its thermophysical properties. This provides a dramatic improvement on the work in Howett et al. (2011), where the values were determined…

Earth and Planetary Astrophysics · Physics 2020-03-20 Carly Howett , John Spencer , Tom Nordheim

Although transit spectroscopy is a powerful method for studying the composition, thermal properties and dynamics of exoplanet atmospheres, only a few transiting terrestrial exoplanets will be close enough to allow significant transit…

Earth and Planetary Astrophysics · Physics 2015-05-28 Franck Selsis , Robin Wordsworth , François Forget

Estimation of thermal contact resistances between cylinders can be achieved using heating on the cross sections by a laser spot and measurement of the temperature response by IR thermography. This type of measurement makes it possible to…

Medical Physics · Physics 2025-11-25 Thomas Lahens , Alain Sommier , Marie-Marthe Groz , Jean-Christophe Batsale

Fast Radio Bursts (FRBs) are energetic phenomena that have significant implications for understanding fundamental physics and the universe. Recent observations of FRB 121102, FRB 20220912A, and FRB 20201124A by the Five-hundred-meter…

High Energy Astrophysical Phenomena · Physics 2024-11-07 Yan-Qi Du , Ping Wang , Li-Ming Song , Shao-Lin Xiong

Considerable progress has been made in recent years in observations of atmospheric signatures of giant exoplanets, but processes in rocky exoplanets remain largely unknown due to major challenges in observing small planets. Numerous efforts…

Earth and Planetary Astrophysics · Physics 2015-11-23 Brice-Olivier Demory , Michael Gillon , Nikku Madhusudhan , Didier Queloz

The random field Ising model is studied numerically at both zero and positive temperature. Ground states are mapped out in a region of random and external field strength. Thermal states and thermodynamic properties are obtained for all…

Statistical Mechanics · Physics 2009-11-11 Yong Wu , Jon Machta

Turbulence is indispensable to redistribute nutrients for all life forms larger than microbial, on land and in the ocean. Yet, the development of deep-sea turbulence was not studied in three dimensions to date. As a disproportionate…

Fluid Dynamics · Physics 2026-01-09 Hans van Haren

The narrow main rings of Uranus are composed of almost exclusively centimeter- to meter-sized particles, with a very small or nonexistent dust component; however, the filling factor, composition, thickness, mass, and detailed particle size…

Earth and Planetary Astrophysics · Physics 2019-07-17 Edward M. Molter , Imke de Pater , Michael T. Roman , Leigh N. Fletcher

Asteroids near the Sun can attain equilibrium temperatures sufficient to induce surface modification from thermal fracture, desiccation and decomposition of hydrated silicates. We present optical observations of nine asteroids with…

Earth and Planetary Astrophysics · Physics 2015-06-15 David Jewitt

Low-cost thermal cameras are inaccurate (usually $\pm 3^\circ C$) and have space-variant nonuniformity across their detector. Both inaccuracy and nonuniformity are dependent on the ambient temperature of the camera. The goal of this work…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Navot Oz , Nir Sochen , David Mendelovich , Iftach Klapp

When a flat sample of medium density fibreboard (MDF) is exposed to radiant heat in an inert atmosphere, primary crack patterns suddenly start to appear over the entire surface before pyrolysis and any charring occurs. Contrary to common…

Soft Condensed Matter · Physics 2019-05-08 Andrea Ferrantelli , Djebar Baroudi , Sergei Khakalo , Kaiyuan Li

In planetary science, surface roughness is regarded to be a measure of surface irregularity at small spatial scales, and causes the thermal-infrared beaming effect (i.e. re-radiation of absorbed sunlight back towards to the Sun). Typically,…

Earth and Planetary Astrophysics · Physics 2016-09-23 Ben Rozitis

Short and long range interactions between earthquakes are attracting increasing interest. Scale invariant properties of seismicity in time, space and energy argue for the presence of complex triggering mechanisms where, like a cascade…

Geophysics · Physics 2007-05-23 Patrizia Tosi , Valerio De Rubeis , Vittorio Loreto , Luciano Pietronero

The near-Earth asteroid (99942) Apophis is a potentially hazardous asteroid. We obtained far-infrared observations of this asteroid with the Herschel Space Observatory's PACS instrument at 70, 100, and 160 micron. These were taken at two…

Earth and Planetary Astrophysics · Physics 2014-06-04 T. G. Müller , C. Kiss , P. Scheirich , P. Pravec , L. O'Rourke , E. Vilenius , B. Altieri

We present an analysis of the accuracy of geometric albedos determined for asteroids through the modeling of observed thermal infrared radiation. We show that albedo uncertainty is dominated by the uncertainty on the measured $H_V$ absolute…

Earth and Planetary Astrophysics · Physics 2021-01-11 Joseph R. Masiero , E. L. Wright , A. K. Mainzer