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We present in this study a mapping of the optical turbulence (OT) above different astronomical sites. The mesoscale model Meso-NH was used together with the Astro-Meso-Nh package and a set of diagnostic tools allowing for a full 3D…

Instrumentation and Methods for Astrophysics · Physics 2010-11-29 Franck Lascaux , Elena Masciadri , Susanna Hagelin

The Cherenkov Telescope Array (CTA) will be the next high-energy gamma-ray observatory. Selection of the sites, one in each hemisphere, is not obvious since several factors have to be taken into account. Among them, and probably the most…

Instrumentation and Methods for Astrophysics · Physics 2013-02-06 K. Louedec , M. Will

Despite the large budgets spent annually on astronomical research equipment such as telescopes, instruments and supercomputers, the general trend is to analyse and view the resulting datasets using small, two-dimensional displays. We report…

Astrophysics · Physics 2009-11-11 C. J. Fluke , P. D. Bourke , D. O'Donovan

The Results of the site selection campaign conducted for the proposed 3.4m optical telescope of the Iranian National Observatory are reported. During the first 3 years, among 33 nominated regions throughout the country, the potential…

Instrumentation and Methods for Astrophysics · Physics 2019-03-06 Sadollah Nasiria , Ahmad Darudi , Habib G. Khosroshahi , Marc Sarazin

The simulation of the optical turbulence (OT) for astronomical applications obtained with non-hydrostatic atmospherical models at meso-scale presents, with respect to measurements, some advantages. The future of the ground-based astronomy…

Instrumentation and Methods for Astrophysics · Physics 2014-11-20 E. Masciadri

Intelligent scheduling of the sequence of scientific exposures taken at ground-based astronomical observatories is massively challenging. Observing time is over-subscribed and atmospheric conditions are constantly changing. We propose to…

Instrumentation and Methods for Astrophysics · Physics 2020-11-09 Sankalp Gilda , Yuan-Sen Ting , Kanoa Withington , Matthew Wilson , Simon Prunet , William Mahoney , Sebastien Fabbro , Stark C. Draper , Andrew Sheinis

To help future mobile agents plan their movement in harsh environments,a predictive model has been designed to determine what areas would be favorable for Global Navigation Satellite System (GNSS) positioning. The model is able to predict…

In the era of big data astronomy, next generation telescopes and large sky surveys produce data sets at the TB or even PB level. Due to their large data volumes, these astronomical data sets are extremely difficult to transfer and analyze…

Astronomy relies heavily on time domain observations. To maximize the scientific yield of such observations, astronomers must carefully match the observational cadence to the phenomena of interest. This presents significant scheduling…

Instrumentation and Methods for Astrophysics · Physics 2025-06-11 Jack Lubin , Erik A. Petigura , Velibor V. Mišić , Judah Van Zandt , Luke B. Handley

We have constructed a new, fast, robust and reliable pipeline to detect variable stars from the ROTSE-IIId archival data. Turkish share of ROTSE-III archive contains approximately one million objects from a large field of view (1.85\dgr)…

Instrumentation and Methods for Astrophysics · Physics 2015-03-19 B. B. Güçsav , C. Yeşilyaprak , S. K. Yerli , N. Aksaker , Ü. Kızıloğlu , D. Çoker , E. Dikicioğlu , M. E. Aydın

The location of an astronomical observatory is a key factor that affects its scientific productivity. The best astronomical sites are generally those found at high altitudes. Several such sites in western China and the Tibetan plateau are…

Instrumentation and Methods for Astrophysics · Physics 2020-05-06 Paul Hickson , Lu Feng , Joschua A. Hellemeier , Zhixia Shen , Suijian Xue , Yongqiang Yao , Bin Ma , Hualin Chen , Rui Yang

This paper presents a tutorial explaining the use of Virtual Observatory tools in high energy astrophysics. Most of the tools used in this paper were developed at the Strasbourg astronomical Data Center and we show how they can be applied…

Instrumentation and Methods for Astrophysics · Physics 2014-11-25 Sébastien Derriere , Rene W. Goosmann , Caroline Bot , François Bonnarel

Astrometry is one of the oldest branches of astronomy which measures the position, the proper motion and parallax of celestial objects. Following the Hipparcos and Gaia missions that have measured several billions of them using global…

We consider the optimal site selection of future generations of gravitational wave detectors. Previously, Raffai et al. optimized a 2-detector network with a combined figure of merit. This optimization was extended to networks with more…

Instrumentation and Methods for Astrophysics · Physics 2015-05-20 Yi-Ming Hu , Peter Raffai , Laszlo Gondan , Ik Siong Heng , Nandor Kelecsenyi , Martin Hendry , Zsuzsa Marka , Szabolcs Marka

The TeV gamma ray sky is observable by recording footprints of extensive air showers with an array of particle detectors. In the northern hemisphere there are currently two projects employing this technique: The HAWC gamma ray observatory…

Instrumentation and Methods for Astrophysics · Physics 2017-09-19 Harm Schoorlemmer , Rubén López-Coto , Jim Hinton

Traditional eye tracking requires specialized hardware, which means collecting gaze data from many observers is expensive, tedious and slow. Therefore, existing saliency prediction datasets are order-of-magnitudes smaller than typical…

Computer Vision and Pattern Recognition · Computer Science 2015-05-21 Pingmei Xu , Krista A Ehinger , Yinda Zhang , Adam Finkelstein , Sanjeev R. Kulkarni , Jianxiong Xiao

Aims. We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1800 km. Methods. Direct imaging with novel qCMOS image sensor…

Instrumentation and Methods for Astrophysics · Physics 2025-12-17 Martin M. Roth , Paško Roje , Stella Vješnica , Stefan Cikota , Alex J. Brown , Mike Kretlow , Marco Azzaro , Santiago Reinhart , Jesús Aceituno , Thomas Kupfer

Accurate acquisition of surface meteorological conditions at arbitrary locations holds significant importance for weather forecasting and climate simulation. Due to the fact that meteorological states derived from satellite observations are…

Machine Learning · Computer Science 2025-02-13 Siwei Tu , Ben Fei , Weidong Yang , Fenghua Ling , Hao Chen , Zili Liu , Kun Chen , Hang Fan , Wanli Ouyang , Lei Bai

Using a portable star tracking system, we are able to obtain the geographical position of the observer, longitude, latitude and North direction. In this work, a new optimization method has been applied to improve accuracy in calculation of…

Instrumentation and Methods for Astrophysics · Physics 2018-08-02 Meysam Izadmehr , Mehdi Khakian Ghom

The observation of blank fields, regions of the sky devoid of stars down to a given threshold magnitude, constitutes one of the typical important calibration procedures required for the proper reduction of astronomical data obtained in…

Instrumentation and Methods for Astrophysics · Physics 2015-05-28 N. Cardiel , F. M. Jiménez-Esteban , J. M. Alacid , E. Solano , M. Aberasturi