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In September 1996, a dust/debris detector: GORID was launched into the geostationary (GEO) region as a piggyback instrument on the Russian Express-2 telecommunications spacecraft. The instrument began its normal operation in April 1997 and…

Characterizing the polarized dust emission from our Galaxy will be decisive for the quest for the Cosmic Microwave Background (CMB) primordial $B$-modes. The incomplete modelling of its potentially complex spectral properties could lead to…

Cosmology and Nongalactic Astrophysics · Physics 2022-11-16 L. Vacher , J. Aumont , L. Montier , S. Azzoni , F. Boulanger , M. Remazeilles

We use Bayesian methods to analyze the distribution of gamma ray burst intensities reported in the Third BATSE Catalog (3B catalog) of gamma ray bursts, presuming the distribution of burst sources (``bursters'') is isotropic. We study both…

Astrophysics · Physics 2009-10-30 Thomas J. Loredo , Ira M. Wasserman

Episodic accretion plays an important role in the evolution of young stars. Although it has been under investigation for a long time, the origin of such episodic accretion events is not yet understood. We investigate the dust and gas…

Solar and Stellar Astrophysics · Physics 2019-10-16 Andreas Postel , Marc Audard , Eduard Vorobyov , Odysseas Dionatos , Christian Rab , Manuel Güdel

Kinetic inductance detectors are widely used in millimeter- and submillimeter-wave astronomy, benefiting from their fast response and relative ease of fabrication. The GroundBIRD telescope employs microwave kinetic inductance detectors at…

Instrumentation and Methods for Astrophysics · Physics 2026-03-10 Yonggil Jo , Alessandro Fasano , Eunil Won , Makoto Hattori , Shunsuke Honda , Chiko Otani , Junya Suzuki , Mike Peel , Kenichi Karatsu , Ricardo Génova-Santos , Miku Tsujii

This work demonstrates the possibilities for improving wildfire and air quality management in the western United States by leveraging the unprecedented hourly data from NASA's TEMPO satellite mission and advances in self-supervised deep…

Machine Learning · Computer Science 2025-10-14 Nicholas LaHaye , Thilanka Munashinge , Hugo Lee , Xiaohua Pan , Gonzalo Gonzalez Abad , Hazem Mahmoud , Jennifer Wei

We present H and Ks-band photometry bracketing the secondary eclipse of the hot Jupiter TrES-3b using the Wide-field Infrared Camera on the Canada-France-Hawaii Telescope. We detect the secondary eclipse of TrES-3b with a depth of…

Earth and Planetary Astrophysics · Physics 2015-05-19 Bryce Croll , Ray Jayawardhana , Jonathan J. Fortney , Loic Albert , David Lafrenière

We report on the Balloonborne Investigation of Temperature and Speed of Electrons in the corona (BITSE) mission launched recently to observe the solar corona from about 3 Rs to 15 Rs at four wavelengths (393.5, 405.0, 398.7, and 423.4 nm).…

Tidal disruption events (TDEs) are expected to release much of their energy in the far-ultraviolet (UV), which we do not observe directly. However, infrared (IR) observations can observe re-radiation of the optical/UV emission from dust,…

We analyse the 30 October, 2004, X1.2/SF solar event that occurred in AR 10691 (N13 W18) at around 11:44 UT. Observations at 212 and 405 GHz of the Solar Submillimeter Telescope (SST), with high time resolution (5 ms), show an intense…

Long gamma-ray bursts (GRBs) are likely associated with the collapse of massive stars, which produce dust and are born in dusty environments. Absorption and scattering of ultraviolet/X-ray photons from the prompt, optical flash and…

Astrophysics · Physics 2011-02-11 Kevin Heng , Davide Lazzati , Rosalba Perna

Tidal disruption events (TDEs) may occur in supermassive black holes (SMBHs) surrounded by clouds. TDEs can generate ultrafast and large opening-angle outflow with a velocity of $\sim$ 0.01--0.2 c, which will collide with clouds with time…

High Energy Astrophysical Phenomena · Physics 2022-11-30 Jiashi Chen , Wei Wang

We have developed a new dynamical model of the torus region in active galactic nucleus (AGN), using a three-dimensional radiation hydrodynamics algorithm. These new simulations have the specific aim to explore the role of radiatively-driven…

Astrophysics of Galaxies · Physics 2019-05-29 David Williamson , Marta Venanzi , Sebastian Hönig

The collisional thick target model, wherein a large number of electrons are accelerated down a flaring loop, can be used to explain many observed properties of solar flares. In this study, we focus on the sensitivity of GOES flare…

Solar and Stellar Astrophysics · Physics 2015-06-29 Jeffrey Reep , Stephen Bradshaw , R. T. James McAteer

We study the reliability of mass estimates obtained for molecular cloud cores using sub-millimetre and infrared dust emission. We use magnetohydrodynamic simulations and radiative transfer to produce synthetic observations with spatial…

Astrophysics of Galaxies · Physics 2015-05-20 J. Malinen , M. Juvela , D. C. Collins , T. Lunttila , P. Padoan

We assess broadband color filters for the two fast cameras on the PLAnetary Transits and Oscillations (PLATO) of stars space mission with respect to exoplanetary atmospheric characterization. We focus on Ultra Hot Jupiters and Hot Jupiters…

Earth and Planetary Astrophysics · Physics 2020-07-29 John Lee Grenfell , Mareike Godolt , Juan Cabrera , Ludmila Carone , Antonio Garcia Munoz , Daniel Kitzmann , Alexis Smith , Heike Rauer

The change of physical conditions across the turbulent and magnetized interstellar medium (ISM) induces a 3D spatial variation of the properties of Galactic polarized emission. The observed signal results from the averaging of different…

Cosmology and Nongalactic Astrophysics · Physics 2025-09-23 Léo Vacher , Jonathan Aumont , François Boulanger , Ludovic Montier , Vincent Guillet , Alessia Ritacco , Jens Chluba

Atmospheric structure, represented by backscatter coefficients (BC) recovered from satellite LiDAR attenuated backscatter (ATB), provides a volumetric view of clouds, aerosols, and molecules, playing a critical role in human activities,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-16 Tianchi Xu

(Abridged) In this second paper of the series, we present the results from optical Gemini-North GMOS-IFU and WIYN DensePak IFU spectroscopic observations of the starburst and inner wind zones of M82, with a focus on the state of the T~10^4…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 M. S. Westmoquette , J. S. Gallagher , L. J. Smith , G. Trancho , N. Bastian , I. S. Konstantopoulos

Surges are cool and dense ejections typically observed in chromospheric lines and closely related to other solar phenomena like UV bursts or coronal jets. Our aim is to address the current lack of inverted models and diagnostics of surges…

Solar and Stellar Astrophysics · Physics 2021-11-10 D. Nóbrega Siverio , S. L. Guglielmino , A. Sainz Dalda