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huibintema [2020/11/19 15:11] – [Huib Intema] huibintema | huibintema [2021/02/23 11:51] (current) – [Supervision] huibintema |
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{{ :019-gmrt-_pune.jpg?nolink&275|The GMRT radio interferometer in India consists of 30 dish-based antennas, each 45 meters in diameter, spread out over an area of about 25 km wide.}} | {{ :019-gmrt-_pune.jpg?nolink&275|The GMRT radio interferometer in India consists of 30 dish-based antennas, each 45 meters in diameter, spread out over an area of about 25 km wide.}} |
I am a radio astronomer and IT support scientist working at ([[https://www.universiteitleiden.nl/en/science/astronomy|Leiden Observatory]]), the astronomical research institute of [[https://www.universiteitleiden.nl/en|Leiden University]] in the Netherlands. My area of expertise is low-frequency [[https://en.wikipedia.org/wiki/Astronomical_interferometer|radio interferometry]], studying the Universe at radio frequencies below 1 [[https://en.wikipedia.org/wiki/Hertz|GHz]] with telescopes like the Giant Metrewave Radio Telescope ([[http://gmrt.ncra.tifr.res.in|GMRT]]) and the Very Large Array ([[https://public.nrao.edu/telescopes/vla/|VLA]]). These are technically challenging observations to process, complicated by the need to image and deconvolve hundreds of sources in a typical Field Of View ([[https://en.wikipedia.org/wiki/Field_of_view|FOV]]) of many degrees in diameter, the abundant presence of man-made Radio-Frequency Interference ([[https://en.wikipedia.org/wiki/Electromagnetic_interference|RFI]]), and the distorting effects of the Earth's [[https://en.wikipedia.org/wiki/Ionosphere|ionosphere]]. Over the course of several years, I have build and refined a set of software tools to process these observations in an efficient and reproducible way, typically yielding high-quality images. These tools are now systematically applied in many different science projects involving low-frequency radio interferometric observations. | I am a radio astronomer and IT support scientist working at [[https://www.universiteitleiden.nl/en/science/astronomy|Leiden Observatory]], the astronomical research institute of [[https://www.universiteitleiden.nl/en|Leiden University]] in the Netherlands. My area of expertise is low-frequency [[https://en.wikipedia.org/wiki/Astronomical_interferometer|radio interferometry]], studying the Universe at radio frequencies below 1 [[https://en.wikipedia.org/wiki/Hertz|GHz]] with telescopes like the Giant Metrewave Radio Telescope ([[http://gmrt.ncra.tifr.res.in|GMRT]]) and the Very Large Array ([[https://public.nrao.edu/telescopes/vla/|VLA]]). These are technically challenging observations to process, complicated by the need to image and deconvolve hundreds of sources in a typical Field Of View ([[https://en.wikipedia.org/wiki/Field_of_view|FOV]]) of many degrees in diameter, the abundant presence of man-made Radio-Frequency Interference ([[https://en.wikipedia.org/wiki/Electromagnetic_interference|RFI]]), and the distorting effects of the Earth's [[https://en.wikipedia.org/wiki/Ionosphere|ionosphere]]. Over the course of several years, I have build and refined a set of software tools to process these observations in an efficient and reproducible way, typically yielding high-quality images. These tools are now systematically applied in many different science projects involving low-frequency radio interferometric observations. |
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{{ :plckg287.png?nolink&250|PLCK G287.0+32.9 is a galaxy cluster for which the clumped galaxy distribution (optical in white) and disturbed hot intra-cluster gas (X-rays in red; radio in blue) indicates that this system underwent a recent major merger. From Bonafede, Intema et al. (2014)}} | {{ :plckg287.png?nolink&250|PLCK G287.0+32.9 is a galaxy cluster for which the clumped galaxy distribution (optical in white) and disturbed hot intra-cluster gas (X-rays in red; radio in blue) indicates that this system underwent a recent major merger. From Bonafede, Intema et al. (2014)}} |
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// Current // \\ | // Current // \\ |
* Soumyajit Mandal: PhD candidate mainly working on LOFAR HBA observations of the Lockman hole (extremely deep survey) and Abell 1914 (merging galaxy cluster). | * Currently not supervising students. |
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// Previous // \\ | // Previous // \\ |
| * Soumyajit Mandal: PhD candidate mainly working on LOFAR HBA observations of the Lockman hole (extremely deep survey) and Abell 1914 (merging galaxy cluster). |
* Joshua Albert: PhD candidate mainly working on LOFAR HBA observations of the GOODS-North field (survey), and on techniques to improve ionospheric calibration and radio spectral index mapping. | * Joshua Albert: PhD candidate mainly working on LOFAR HBA observations of the GOODS-North field (survey), and on techniques to improve ionospheric calibration and radio spectral index mapping. |
* Alexandar Mechev: PhD candidate mainly working on optimization of the processing pipeline for the LOFAR HBA survey, and porting to distributed computer platforms. | * Alexandar Mechev: PhD candidate mainly working on optimization of the processing pipeline for the LOFAR HBA survey, and porting to distributed computer platforms. |