Pravin A. Chordia

Test and Calibration of the Solar Ultraviolet Imaging Telescope (SUIT) on Board Aditya-L1

Janmejoy Sarkar, Soumya Roy, Rushikesh Deogaonkar, Sreejith Padinhatteeri et autres

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Test and Calibration of the Solar Ultraviolet Imaging Telescope (SUIT) on board Aditya-L1

Janmejoy Sarkar, Soumya Roy, Rushikesh Deogaonkar, Sreejith Padinhatteeri et autres

The Solar Ultraviolet Imaging Telescope (SUIT) on board the AdityaL1 mission observes the Sun in the 200-400 nm wavelength range. This paper presents the results of various on ground and on board tests and their comparison with the specifications. Moreover, we also …

The Solar Ultraviolet Imaging Telescope on Board Aditya-L1

Durgesh Tripathi, Anamparambu N. Ramaprakash, Sreejith Padinhatteeri, Janmejoy Sarkar et autres

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The Solar Ultraviolet Imaging Telescope on board Aditya-L1

Durgesh Tripathi, Anamparambu N. Ramaprakash, Sreejith Padinhatteeri, Janmejoy Sarkar et autres

The Solar Ultraviolet Imaging Telescope (SUIT) is an instrument on the Aditya-L1 mission of the Indian Space Research Organization (ISRO) launched on September 02, 2023. SUIT continuously provides, near-simultaneous full-disk and region-of-interest images of the Sun, slicing through the photosphere and chromosphere …

Systems design, assembly, integration, and lab testing of WALOP-South Polarimeter

Siddharth Maharana, Anamparambu N. Ramaprakash, Chaitanya Rajarshi, Pravin Khodade et autres

Wide-Area Linear Optical Polarimeter (WALOP)-South is the first wide-field and survey-capacity polarimeter in the optical wavelengths. On schedule for commissioning in 2024, it will be mounted on the 1 m SAAO telescope in Sutherland Observatory, South Africa to undertake the PASIPHAE sky …

Afrique du Sud, in, gr, us, no, se, be (code pays fourni par la source)

The Solar Ultraviolet Imaging Telescope: detector characterization and readout electronics testing

Subhash Varma, Anurag Tyagi, Bhushan Joshi, Reena Yadav et autres

ABSTRACT The Solar Ultraviolet Imaging Telescope (SUIT) is one of the payloads onboard the Aditya-L1 mission. It will perform full disc imaging of the Sun in the near-ultraviolet (UV) wavelength range of 200–400 nm. This provides near-simultaneous observations of the Sun from …

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KNOW THE STAR, KNOW THE PLANET. IV. A STELLAR COMPANION TO THE HOST STAR OF THE ECCENTRIC EXOPLANET HD 8673b

Christoph J. Baranec, Ernest E. Croner, J. C. Shelton, Dan McKenna et autres

HD 8673 hosts a massive exoplanet in a highly eccentric orbit (e = 0.723). Based on two epochs of speckle interferometry a previous publication identified a candidate stellar companion. We observed HD 8673 multiple times with the 10 m Keck II telescope, …

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HIGH-EFFICIENCY AUTONOMOUS LASER ADAPTIVE OPTICS

Pravin A. Chordia, Khanh Hong-Thien Bui, Anamparambu N. Ramaprakash, Kristina Hogstrom et autres

As new large-scale astronomical surveys greatly increase the number of objects targeted and discoveries made, the requirement for efficient follow-up observations is crucial. Adaptive optics imaging, which compensates for the image-blurring effects of Earth's turbulent atmosphere, is essential for these surveys, but …

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WALOP-South: A wide-field one-shot linear optical polarimeter for PASIPHAE survey

Siddharth Maharana, John Andrew Kypriotakis, Pravin Khodade, Chaitanya Rajarshi et autres

WALOP (Wide-Area Linear Optical Polarimeter)-South, to be mounted on the 1m SAAO telescope in South Africa, is first of the two WALOP instruments currently under development for carrying out the PASIPHAE survey. Scheduled for commissioning in the year 2021, the WALOP instruments …

in, gr, us, no, Afrique du Sud (code pays fourni par la source)

A near-infrared camera for iRobo-AO on the IUCAA 2-m telescope

Jyotirmay Paul, Anamparambu N. Ramaprakash, Hillol K. Das, Mahesh Burse et autres

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Design and development of an adaptive optics system in visible and near-infrared for Inter-University Centre for Astronomy and Astrophysics 2-meter telescope

Jyotirmay Paul, Hillol K. Das, Anamparambu N. Ramaprakash, Mahesh Burse et autres

Robo-AO is the first robotic autonomous laser-guided adaptive optics (AO) system operating in the sky. It is a very economical AO system especially suitable for observations with 1- to 3-m class telescopes. A second Robo-AO system, which works both in the visible …

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Design and development of IR camera

Jyotirmay Paul, Anamparambu N. Ramaprakash, Hillol K. Das, Mahesh Burse et autres

Atmospheric turbulence is gentle in the infrared regime than visible. Hence adaptive optics (AO) efficiently works in the infrared. The large overheads and low efficiency still limit the applicability of AO on large telescopes for which operational costs per unit time are …

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