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The direct detection and characterization of planetary and substellar companions at small angular separations is a rapidly advancing field. Dedicated high-contrast imaging instruments deliver unprecedented sensitivity, enabling detailed…

Earth and Planetary Astrophysics · Physics 2019-01-25 Tomas Stolker , Markus J. Bonse , Sascha P. Quanz , Adam Amara , Gabriele Cugno , Alexander J. Bohn , Anna Boehle

Punzo et al. (2015) recently reported on the state of the art for visualisation of H I data cubes. I here briefly describe another program, FRELLED, specifically designed for dealing with H I data. Unlike many 3D viewers, FRELLED can handle…

Astrophysics of Galaxies · Physics 2015-06-16 Rhys Taylor

SINDy is a method for learning system of differential equations from data by solving a sparse linear regression optimization problem [Brunton et al., 2016]. In this article, we propose an extension of the SINDy method that learns systems of…

We announce the public release of PynPoint, a Python package that we have developed for analysing exoplanet data taken with the angular differential imaging observing technique. In particular, PynPoint is designed to model the point spread…

Earth and Planetary Astrophysics · Physics 2014-05-15 Adam Amara , Sascha P. Quanz , Joel Akeret

Apache Spark is a Big Data framework for working on large distributed datasets. Although widely used in the industry, it remains rather limited in the academic community or often restricted to software engineers. The goal of this paper is…

Instrumentation and Methods for Astrophysics · Physics 2019-07-17 S. Plaszczynski , J. Peloton , C. Arnault , J. E. Campagne

The DEEP-South photometric census of small Solar System bodies produces massive time-series data of variable, transient or moving objects as a by-product. To fully investigate unexplored variable phenomena, we present an application of…

Instrumentation and Methods for Astrophysics · Physics 2018-10-09 Seo-Won Chang , Yong-Ik Byun , Min-Su Shin , Hahn Yi , Myung-Jin Kim , Hong-Kyu Moon , Young-Jun Choi , Sang-Mok Cha , Yongseok Lee

Asteroseismology is an exceptional tool for studying stars by using the properties of observed modes of oscillation. So far the process of performing an asteroseismic analysis of a star has remained somewhat esoteric and inaccessible to…

We present a machine learning method to assign stellar parameters (temperature, surface gravity, metallicity) to the photometric data of large photometric surveys such as SDSS and SKYMAPPER. The method makes use of our previous effort in…

Instrumentation and Methods for Astrophysics · Physics 2024-12-09 A. Turchi , E. Pancino , F. Rossi , A. Avdeeva , P. Marrese , S. Marinoni , N. Sanna , M. Tsantaki , G. Fanari

Making mock simulated catalogs is an important component of astrophysical data analysis. Selection criteria for observed astronomical objects are often too complicated to be derived from first principles. However the existence of an…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-22 Amir Hajian , Marcelo Alvarez , J. Richard Bond

Despite recent progress in computer vision, fine-grained interpretation of satellite images remains challenging because of a lack of labeled training data. To overcome this limitation, we propose using Wikipedia as a previously untapped…

Computer Vision and Pattern Recognition · Computer Science 2018-09-28 Evan Sheehan , Burak Uzkent , Chenlin Meng , Zhongyi Tang , Marshall Burke , David Lobell , Stefano Ermon

We describe a software package called VPLanet that simulates fundamental aspects of planetary system evolution over Gyr timescales, with a focus on investigating habitable worlds. In this initial release, eleven physics modules are included…

Recent massive sky surveys in different bandwidths are providing new opportunities to modern astronomy. The Virtual Observatory (VO) represents the adequate framework to handle the huge amount of information available and filter out data…

Solar and Stellar Astrophysics · Physics 2016-03-01 Esther Pérez-Fernández , Ana Ulla , Enrique Solano , Raquel Oreiro , Carlos Rodrigo

We present a description of the design and usage of a new synoptic pipeline and database model for time series photometry in the VISTA Data Flow System (VDFS). All UKIRT-WFCAM data and most of the VISTA main survey data will be processed…

Instrumentation and Methods for Astrophysics · Physics 2015-05-13 N. J. G. Cross , R. S. Collins , N. C. Hambly , R. P. Blake , M. A. Read , E. T. W. Sutorius , R. G. Mann , P. M. Williams

Visualization techniques are well developed for many problem domains, but these systems break down for datasets which are very large or multidimensional. Techniques for data which is discrete rather than continuous are also less well…

Astrophysics · Physics 2007-05-23 Joel Welling , Mark Derthick

The next generation of telescopes such as the SKA and the Rubin Observatory will produce enormous data sets, requiring automated anomaly detection to enable scientific discovery. Here, we present an overview and friendly user guide to the…

Instrumentation and Methods for Astrophysics · Physics 2022-01-26 Michelle Lochner , Bruce A. Bassett

PICsar2D is a 2.5D relativistic, electromagnetic, particle in cell code designed for studying the pulsar magnetosphere. The source code and a suite of Python analysis routines can be downloaded from…

High Energy Astrophysical Phenomena · Physics 2017-07-07 Mikhail A. Belyaev

With the application of advanced astronomical technologies, equipments and methods all over the world, astronomy covers from radio, infrared, visible light, ultraviolet, X-ray and gamma ray band, and enters into the era of full wavelength…

Instrumentation and Methods for Astrophysics · Physics 2016-11-09 Bo Han , Yanxia Zhang , Shoubo Zhong , Yongheng Zhao

The continuing monitoring and surveying of the nearby space to detect Near Earth Objects (NEOs) and Near Earth Asteroids (NEAs) are essential because of the threats that this kind of objects impose on the future of our planet. We need more…

Instrumentation and Methods for Astrophysics · Physics 2019-01-15 V. Bacu , A. Sabou , T. Stefanut , D. Gorgan , O. Vaduvescu

The physical properties of almost any kind of astronomical object can be derived by fitting synthetic spectra or photometry extracted from theoretical models to observational data. We want to develop an automatic procedure to perform this…

We present an open source Python 3 library aimed at practitioners of molecular simulation, especially Monte Carlo simulation. The aims of the library are to facilitate the generation of simulation data for a wide range of problems; and to…

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