English
Related papers

Related papers: GMRT Archive Processing Project

200 papers

The Legacy Survey of Space and Time, operated by the Vera C. Rubin Observatory, is a 10-year astronomical survey due to start operations in 2022 that will image half the sky every three nights. LSST will produce ~20TB of raw data per night…

Instrumentation and Methods for Astrophysics · Physics 2020-11-13 Dino Bektesevic , Hsin-Fang Chiang , Kian-Tat Lim , Todd L. Miller , Greg Thain , Tim Jenness , James Bosch , Andrei Salnikov , Andrew Connolly

A variety of pulsar studies, ranging from high precision astrometry to tests for theories of gravity, require high time resolution data. Few such observations at more than two frequencies below 1 GHz are available. Giant Meterwave Radio…

Astrophysics · Physics 2007-05-23 Bhal Chandra Joshi , Sunil Ramakrishna

The Wide Field Survey Telescope (WFST) is a dedicated photometric surveying facility built jointly by the University of Science and Technology of China (USTC) and the Purple Mountain Observatory (PMO). Since many of its scientific…

Instrumentation and Methods for Astrophysics · Physics 2026-01-26 Minxuan Cai , Zelin Xu , Lulu Fan , Zhen Wan , Binyang Liu , Xu Kong , Weida Hu , Lei Hu , Qing-feng Zhu , Guoliang Li , Jie Lin , Min Fang , Ji-an Jiang , Yongquan Xue , Xianzhong Zhen , Tinggui Wang

Contemporary all-sky surveys have observed thousands of extragalactic transients in the nearby universe, and upcoming surveys will discover exponentially more at higher redshifts. With these large samples, population-level analysis of the…

Instrumentation and Methods for Astrophysics · Physics 2026-04-07 C. Pellegrino , T. A. Pritchard , M. Modjaz , A. Crawford , S. Khakpash , F. Bianco

Since the discovery of RRATs, interest in single pulse radio searches has increased dramatically. Due to the large data volumes generated by these searches, especially in planned surveys for future radio telescopes, such searches have to be…

Instrumentation and Methods for Astrophysics · Physics 2014-02-03 Alessio Magro

Pulsar studies in the recent years have shown, more than others, to have benefited from a multi-wavelength approach. The INAF - Astronomical Observatory in Cagliari (INAF-OAC) is a growing facility with a young group devoted to pulsar and…

Instrumentation and Methods for Astrophysics · Physics 2019-04-05 Maura Pilia , Alessio Trois , Matteo Bachetti , Alberto Pellizzoni , Giuseppe Atzeni , Elise Egron , Maria Noemi Iacolina , Sara Loru , Antonio Poddighe , Valentina Vacca

A fully real-time coherent dedispersion system has been developed for the pulsar back-end at the Giant Metrewave Radio Telescope (GMRT). The dedispersion pipeline uses the single phased array voltage beam produced by the existing GMRT…

Instrumentation and Methods for Astrophysics · Physics 2015-09-02 Kishalay De , Yashwant Gupta

The GALFACTS project is using the L-band seven feed array receiver system on the Arecibo telescope to carry out an imaging spectro-polarimetric survey of the 30% of the sky visible from Arecibo. GALFACTS observations will create full-Stokes…

Instrumentation and Methods for Astrophysics · Physics 2010-08-31 Russ Taylor , Chris Salter

The CHIME Pathfinder is a new interferometric radio telescope that uses a hybrid FPGA/GPU FX correlator. The GPU-based X-engine of this correlator processes over 819 Gb/s of 4+4-bit complex astronomical data from N=256 inputs across a 400…

Instrumentation and Methods for Astrophysics · Physics 2015-06-16 Andre Recnik , Kevin Bandura , Nolan Denman , Adam D. Hincks , Gary Hinshaw , Peter Klages , Ue-Li Pen , Keith Vanderlinde

The Large sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) medium-resolution spectral survey of Galactic Nebulae (MRS-N) has conducted for three years since Sep. 2018 and observed more than 190 thousands nebular spectra and 20…

Solar and Stellar Astrophysics · Physics 2022-06-29 Chao-Jian Wu , Hong Wu , Wei Zhang , Yao Li , Juan-Juan Ren , Jian-Jun Chen , Chih-Hao Hsia , Yu-Zhong Wu , Hui Zhu , Bin Li , Yong-Hui Hou

The Chinese Spectral RadioHeliograph (CSRH) is a synthetic aperture radio interferometer built in Inner Mongolia, China. As a solar-dedicated interferometric array, CSRH is capable of producing high quality radio images at frequency range…

Instrumentation and Methods for Astrophysics · Physics 2016-12-21 F. Wang , Y. Mei , H. Deng , C. Y. Liu , D. H. Liu , S. L. Wei , W. Dai , B. Liang , Y. B. Liu , X. L. Zhang , K. F. Ji

Context. The advent of wide-band receiver systems on interferometer arrays enables one to undertake high-sensitivity and high-resolution radio continuum surveys of the Galactic plane in a reasonable amount of telescope time. However, to…

{Context}. The HIFI instrument on the Herschel Space Observatory performed over 9100 astronomical observations, almost 900 of which were calibration observations in the course of the nearly four-year Herschel mission. The data from each…

We present GALARIO, a computational library that exploits the power of modern graphical processing units (GPUs) to accelerate the analysis of observations from radio interferometers like ALMA or the VLA. GALARIO speeds up the computation of…

Instrumentation and Methods for Astrophysics · Physics 2018-03-14 Marco Tazzari , Frederik Beaujean , Leonardo Testi

We present the first full release of a survey of the 150 MHz radio sky, observed with the Giant Metrewave Radio Telescope between April 2010 and March 2012 as part of the TGSS project. Aimed at producing a reliable compact source survey,…

Cosmology and Nongalactic Astrophysics · Physics 2017-02-08 H. T. Intema , P. Jagannathan , K. P. Mooley , D. A. Frail

The International Liquid Mirror Telescope (ILMT) is a 4-meter survey telescope continuously observing towards the zenith in the SDSS g', r', and i' bands. This survey telescope is designed to detect various astrophysical transients (for…

Modern astronomical data processing requires complex software pipelines to process ever growing datasets. For radio astronomy, these pipelines have become so large that they need to be distributed across a computational cluster. This makes…

Instrumentation and Methods for Astrophysics · Physics 2018-07-17 Alexandar P. Mechev , Aske Plaat , J. B. Raymond Oonk , Huib T. Intema , Huub J. A. Röttgering

We describe the calibration and imaging heuristics developed and deployed in the ALMA interferometric data processing pipeline, as of ALMA Cycle 9. The pipeline software framework is written in Python, with each data reduction stage layered…

Current and upcoming radio-interferometers are expected to produce volumes of data of increasing size that need to be processed in order to generate the corresponding sky brightness distributions through imaging. This represents an…

Instrumentation and Methods for Astrophysics · Physics 2023-01-18 Claudio Gheller , Giuliano Taffoni , David Goz

We present the first spectropolarimetric radio observations that apply Rotation Measure (RM) Synthesis to interferometric data from the Giant Metrewave Radio Telescope (GMRT) at 610 MHz. Spectropolarimetry requires measurement of a large…

Instrumentation and Methods for Astrophysics · Physics 2013-09-19 J. S. Farnes , D. A. Green , N. G. Kantharia