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Related papers: A dedicated tool for a full 3D Cn2 investigation

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The interaction between turbulence and surface tension is studied numerically using the one-dimensional-turbulence (ODT) model. ODT is a stochastic model simulating turbulent flow evolution along a notional one-dimensional line of sight by…

Fluid Dynamics · Physics 2024-04-16 A. Movaghar , R. Chiodi , M. Oevermann , O. Desjardins , A. R. Kerstein

The "TNOs are Cool!: A survey of the trans-Neptunian region" is a Herschel Open Time Key Program that aims to characterize planetary bodies at the outskirts of the Solar System using PACS and SPIRE data, mostly taken as scan-maps. In this…

Instrumentation and Methods for Astrophysics · Physics 2015-06-17 Cs. Kiss , Th. G. Müller , E. Vilenius , A. Pál , P. Santos-Sanz , E. Lellouch , G. Marton , E. Verebélyi , N. Szalai , P. Hartogh , J. Stansberry , F. Henry , A. Delsanti

Astro-H will be able for the first time to map gas velocities and detect turbulence in galaxy clusters. One of the best targets for turbulence studies is the Coma cluster, due to its proximity, absence of a cool core, and lack of a central…

Cosmology and Nongalactic Astrophysics · Physics 2016-02-03 J. ZuHone , M. Markevitch , I. Zhuravleva

Atmospheric profiling is a requirement for controlling wide-field Adaptive Optics (AO) instruments, analyzing the AO performance with respect to the observing conditions and predicting the Point Spread Function (PSF) spatial variations. We…

Instrumentation and Methods for Astrophysics · Physics 2019-04-17 Olivier Beltramo-Martin , Nazim A. Bharmal , Carlos M. Correia

On-orbit performance of the Solar Optical Telescope (SOT) aboard Hinode is described with some attentions on its unpredicted aspects. In general, SOT revealed an excellent performance and has been providing outstanding data. Some unexpected…

A clustering algorithm is applied to Cassini Imaging Science Subsystem continuum and methane band images of Saturns northern hemisphere to objectively classify regional albedo features and aid in their dynamical interpretation. The…

Earth and Planetary Astrophysics · Physics 2017-09-26 Anthony D. Del Genio , John M. Barbara

ABRIDGED: 2D spectroscopic MUSE data for the whole extent of NGC3132 have been reduced and analised. The dust extinction, electron densities and temperatures of the ionised gas and abundances were determined. The nebula presents a complex…

Solar and Stellar Astrophysics · Physics 2020-02-05 Ana Monreal-Ibero , Jeremy R. Walsh

Monitoring turbulence parameters is crucial in high-angular resolution astronomy for various purposes, such as optimising adaptive optics systems or fringe trackers. The former are present at most modern observatories and will remain…

Instrumentation and Methods for Astrophysics · Physics 2023-10-25 Nuno Morujão , Carlos Correia , Paulo Andrade , Julien Woillez , Paulo Garcia

The IceCube Neutrino Observatory is a multi-messenger observatory at the South Pole. As preparation for an enhancement of its surface array, IceTop, a prototype station consisting of elevated scintillation panels and radio antennas has been…

High Energy Astrophysical Phenomena · Physics 2025-07-11 Paras Koundal , Valeria Torres-Gomez

The optical turbulence conditions as measured between 2004 until end of 2008 above Cerro Tololo, their seasonal as well as nocturnal behavior are presented. A comparison with the MASS-DIMM system of the Thirty Meter Telescope site testing…

Instrumentation and Methods for Astrophysics · Physics 2015-05-13 S. G. Els , M. Schoeck , E. Bustos , J. Seguel , J. Vasquez , D. Walker , R. Riddle , W. Skidmore , T. Travouillon , K. Vogiatzis

Las Cumbres Observatory (LCO) has deployed a network of ten identical 1-m telescopes to four locations. The global coverage and flexibility of the LCO network makes it ideal for discovery, follow-up, and characterization of all Solar System…

Earth and Planetary Astrophysics · Physics 2021-04-28 T. A. Lister , E. Gomez , J. Chatelain , S. Greenstreet , J. MacFarlane , A. Tedeschi , I. Kosic

Time domain astronomy has emerged as a vibrant research field in recent years, focusing on celestial objects that exhibit variable magnitudes or positions. Given the urgency of conducting follow-up observations for such objects, the…

Instrumentation and Methods for Astrophysics · Physics 2023-10-12 Rui Sun , Peng Jia , Yongyang Sun , Zhimin Yang , Qiang Liu , Hongyan Wei

Motivated by the development of high-dispersion spectrographs in the mid-infrared (MIR) range, we study their application to the atmospheric characterization of nearby non-transiting temperate terrestrial planets around M-type stars. We…

Earth and Planetary Astrophysics · Physics 2021-03-24 Yuka Fujii , Taro Matsuo

The ``P32'' Astronomical Observation Template (AOT) provided a means to map large areas of sky (up to 45 x 45 arcmin) in the far-infrared (FIR) at high redundancy and with sampling close to the Nyquist limit using the ISOPHOT C100 (3 x 3)…

Astrophysics · Physics 2011-05-23 Richard J. Tuffs , Carlos Gabriel

Advanced adaptive optics (AO) instruments on ground-based telescopes require accurate knowledge of the atmospheric turbulence strength as a function of altitude. This information assists point spread function reconstruction, AO temporal…

The MONOS project (Multiplicity Of Northern O-type Spectroscopic systems) aims to characterize O-type spectroscopic binaries in the northern hemisphere (dec > -20 deg) using high-resolution spectroscopy and multi-epoch photometry. This…

Solar and Stellar Astrophysics · Physics 2025-09-24 G. Holgado , J. Maíz Apellániz , R. C. Gamen

The results on the vertical distribution of optical turbulence above the five mountains which were investigated by the site testing for the Thirty Meter Telescope (TMT) are reported. On San Pedro Martir in Mexico, the 13 North site on Mauna…

Instrumentation and Methods for Astrophysics · Physics 2015-05-13 S. G. Els , T. Travouillon , M. Schoeck , R. Riddle , W. Skidmore , J. Seguel , E. Bustos , D. Walker

Physical characterization of Trans-Neptunian objects, a primitive population of the outer solar system, may provide constraints on their formation and evolution. The goal of this work is to characterize a set of 15 scattered disk (SDOs) and…

COupled SLope and scIntillation Detection And Ranging (CO-SLIDAR) is a recent profiling method of the vertical distribution of atmospheric turbulence strength ($C_n^2$ profile). It takes advantage of correlations of slopes and of…

Atmospheric and Oceanic Physics · Physics 2015-06-18 Juliette Voyez , Clélia Robert , Jean-Marc Conan , Laurent M. Mugnier , Etienne Samain , Aziz Ziad