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Related papers: COMetary dust TAIL Simulator (COMTAILS): A compute…

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We present a code to generate mock observations of 21 cm intensity mapping experiments. The emphasis of the code is on reducing the computational cost of running a full-blown simulation, trading computational time for accuracy. The code can…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 David Alonso , Pedro G. Ferreira , Mario G. Santos

The IR emission of dust heated by stars provides critical information for galaxy evolution studies. Unfortunately, observations are often limited to the MIR, making templates a necessity. Previously published templates were based on small…

Astrophysics of Galaxies · Physics 2021-10-04 Médéric Boquien , Samir Salim

Cool giant and supergiant star atmospheres are characterized by complex velocity fields originating from convection and pulsation processes which are not fully understood yet. The velocity fields impact the formation of spectral lines,…

Solar and Stellar Astrophysics · Physics 2018-02-21 K. Kravchenko , S. Van Eck , A. Chiavassa , A. Jorissen , B. Freytag , B. Plez

We aim to explore the capabilities of dust emission and rays for probing the properties of the interstellar medium in the nearby anti-centre region, using gamma-ray observations with the Fermi Large Area Telescope (LAT), and the thermal…

High Energy Astrophysical Phenomena · Physics 2017-05-10 Q. Remy , I. A. Grenier , D. J. Marshall , J. M. Casandjian

Ultra-short period planets offer a window into the poorly understood interior composition of exoplanets through material evaporated from their rocky interiors. Among these objects are a class of disintegrating planets, observed when their…

Earth and Planetary Astrophysics · Physics 2022-11-09 Richard A. Booth , James E. Owen , Matthäus Schulik

Particle-in-cell methods with stochastic collision models are commonly used to simulate collisional plasma dynamics, with applications ranging from hypersonic flight to semiconductor manufacturing. Code verification of such methods is…

Computational Physics · Physics 2026-05-26 Brian A. Freno , William J. McDoniel , Christopher H. Moore , Neil R. Matula

A software toolkit for the simulation of activation background for high energy detectors onboard satellites is presented on behalf of the HERMES-SP collaboration. The framework employs direct Monte Carlo and analytical calculations allowing…

Instrumentation and Methods for Astrophysics · Physics 2021-01-12 G. Galgoczi , J. Ripa , G. Dilillo , M. Ohno , R. Campana , N. Werner

The MIDAS (Micro-Imaging Dust Analysis System) atomic force microscope on board the Rosetta comet orbiter investigated and measured the 3D topography of a few hundred nm to tens of $\mu$m sized dust particles of 67P/Churyumov-Gerasimenko…

Earth and Planetary Astrophysics · Physics 2023-10-25 M. Kim , T. Mannel , J. Lasue , A. Longobardo , M. S. Bentley , R. Moissl , the MIDAS team

Abridged: Recent simulations have explored different ways to form accretion disks around low-mass stars. We aim to present observables to differentiate a rotationally supported disk from an infalling rotating envelope toward deeply embedded…

Solar and Stellar Astrophysics · Physics 2015-04-29 Daniel Harsono , Ewine van Dishoeck , Simon Bruderer , Zhi-Yun Li , Jes Jorgensen

We present a statistical approach to assess the dust environment for a yet unknown comet (or when its parameters are known only with large uncertainty). This is of particular importance for missions such as ESA's Comet Interceptor mission…

We model the interaction of the solar wind with the plasma tail of a comet by means of numerical simulations, taking into account the effects of viscous-like forces.A 2D hydrodynamical, two species, finite difference code has been developed…

Astrophysics · Physics 2009-11-12 M. Reyes-Ruiz , H. Perez-de-Tejada , H. Aceves , R. Vazquez

Sub-millimetre dust emission is an important tracer of density N of dense interstellar clouds. One has to combine surface brightness information at different spatial resolutions, and specific methods are needed to derive N at a resolution…

Astrophysics of Galaxies · Physics 2015-06-16 M. Juvela , J. Montillaud

An object with a very peculiar light-curve was discovered recently using Kepler data. Authors argue that this object may be a transiting disintegrating planet with a comet like dusty tail. We calculate the light-curves of stars with such…

Earth and Planetary Astrophysics · Physics 2015-06-11 Jan Budaj

We revised the treatment of interstellar dust in the KOSMA-\tau\ PDR model code to achieve a consistent description of the dust-related physics in the code. The detailed knowledge of the dust properties is then used to compute the dust…

Instrumentation and Methods for Astrophysics · Physics 2012-11-16 M. Röllig , R. Szczerba , V. Ossenkopf , C. Glück

In order to study the initial conditions of planet formation, it is crucial to obtain spatially resolved multi-wavelength observations of the innermost region of protoplanetary discs. We evaluate the advantage of combining observations with…

Solar and Stellar Astrophysics · Physics 2019-02-20 Julia Kobus , Sebastian Wolf , Robert Brunngräber

Antideuteron and antihelium nuclei have been proposed as a detection channel for dark matter annihilations and decays in the Milky Way, due to the low astrophysical background expected. To estimate both the signal for various dark matter…

High Energy Physics - Phenomenology · Physics 2020-01-15 M. Kachelriess , S. Ostapchenko , J. Tjemsland

The completeness of source detection is critical for analyzing the photometric and spatial properties of the population of interest observed by astronomical imaging. We present a software package $\mathtt{ComEst}$, which calculates the…

Instrumentation and Methods for Astrophysics · Physics 2016-05-24 I-Non Chiu , Shantanu Desai , Jiayi Liu

We present optical observations and Monte Carlo models of the dust coma, tail, and trail structures of comet 22P/Kopff during the 2002 and 2009 apparitions. Dust loss rates, ejection velocities, and power-law size distribution functions are…

Earth and Planetary Astrophysics · Physics 2015-06-04 Fernando Moreno , Francisco Pozuelos , Francisco Aceituno , Victor Casanova , Alfredo Sota , Julio Castellano , Esteban Reina

Stellar intensity interferometers will achieve stellar imaging with a tenth of a milli- arcsecond resolution in the optical band by taking advantage of the large light collect- ing area and broad range of inter-telescope distances offered…

Instrumentation and Methods for Astrophysics · Physics 2013-03-19 Janvida Rou , Paul D. Nuñez , David Kieda , Stephan LeBohec

Disintegrating planets are ultra-short-period exoplanets that appear to have a comet-like dust tail. They are commonly interpreted as low-mass planets whose solid surface is evaporating and whose tail is made of recondensing minerals.…

Earth and Planetary Astrophysics · Physics 2020-10-14 Ayaka Okuya , Satoshi Okuzumi , Kazumasa Ohno , Teruyuki Hirano
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