Zobrazeno 1 - 10
of 219
pro vyhledávání: '"Ramaprakash, A N"'
Autor:
Shah, Sarang, Subramanian, Smitha, K., Avinash C., Andersen, David R., Skidmore, Warren, Anupama, G. C., Delgado, Francisco, Gillies, Kim, Gopinathan, Maheshwar, Ramaprakash, A. N., Reddy, B. E., Sivarani, T., Subramaniam, Annapurni
Publikováno v:
The Astronomical Journal, 168:59 (28pp), 2024 August
At first light, the Thirty Meter Telescope (TMT) near-infrared (NIR) instruments will be fed by a multiconjugate adaptive optics instrument known as the Narrow Field Infrared Adaptive Optics System (NFIRAOS). NFIRAOS will use six laser guide stars to
Externí odkaz:
http://arxiv.org/abs/2408.08180
Autor:
Maharana, Siddharth, Blinov, Dmitry, Ramaprakash, A. N., Pavlidou, Vasiliki, Tassis, Konstantinos
Publikováno v:
Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 130963A (2024)
RoboPol is a four-channel, one-shot linear optical polarimeter that has been successfully operating since 2013 on the 1.3 m telescope at Skinakas Observatory in Crete, Greece. Using its unique optical system, it measures the linear Stokes parameters
Externí odkaz:
http://arxiv.org/abs/2407.13470
Autor:
Maharana, Siddharth, Ramaprakash, A. N., Rajarshi, Chaitanya, Khodade, Pravin, Joshi, Bhushan, Chordia, Pravin, Kohok, Abhay, Anche, Ramya M., Modi, Deepa, Kypriotakis, John A., Deokar, Amit, Kinjawadekar, Aditya, Potter, Stephen B., Blinov, Dmitry, Eriksen, Hans Kristian, Falalaki, Myrto, Gajjar, Hitesh, Ghosh, Tuhin, Gjerløw, Eirik, Kiehlmann, Sebastain, Liodakis, Ioannis, Mandarakas, Nikolaos, Panopoulou, Georgia V., Pavlidou, Vasiliki, Pearson, Timothy J., Pelgrims, Vincent, Readhead, Anthony C. S., Skalidis, Raphael, Tassis, Konstantinos, Uppal, Namita, Wehus, Ingunn K.
Publikováno v:
Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 130967P (2024)
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, Sout
Externí odkaz:
http://arxiv.org/abs/2406.19428
Autor:
Pelgrims, V., Mandarakas, N., Skalidis, R., Tassis, K., Panopoulou, G. V., Pavlidou, V., Blinov, D., Kiehlmann, S., Clark, S. E., Hensley, B. S., Romanopoulos, S., Basyrov, A., Eriksen, H. K., Falalaki, M., Ghosh, T., Gjerløw, E., Kypriotakis, J. A., Maharana, S., Papadaki, A., Pearson, T. J., Potter, S. B., Ramaprakash, A. N., Readhead, A. C. S., Wehus, I. K.
We present the first degree-scale tomography map of the dusty magnetized interstellar medium (ISM) from stellar polarimetry and distance measurements. We used the RoboPol polarimeter at Skinakas Observatory to conduct a survey of starlight polarizati
Externí odkaz:
http://arxiv.org/abs/2404.10821
We propose a spectropolarimeter a covering wavelength range of 3200--7000 {\AA} [3200{\AA} chosen as lower limit to go to the atmospheric cut-off. It's ``needed" for some Serkowski curves and would make the instrument even more unique] for a 2-4~m cl
Externí odkaz:
http://arxiv.org/abs/2402.18854
Autor:
Wadadekar, Yogesh, Tendulkar, Shriharsh, Mitra, Sanjit, Reddy, Eswar, Ramaprakash, A. N., Prusti, Timo, Kollmeier, Juna, Sharma, Pranav, Mahabal, Ashish
Policy Brief on "Large Projects in Astronomy: An Indian Endeavour", distilled from the corresponding panel that was part of the discussions during S20 Policy Webinar on Astroinformatics for Sustainable Development held on 6-7 July 2023. Cutting-edge
Externí odkaz:
http://arxiv.org/abs/2402.14841
Autor:
Mahabal, Ashish, Sharma, Pranav, Adhikari, Rana, Allen, Mark, Andreon, Stefano, Bhalerao, Varun, Bianco, Federica, Brown, Anthony, Cenko, S. Bradley, Coehlo, Paula, Cooke, Jeffery, Crichton, Daniel, Cui, Chenzhou, de Carvalho, Reinaldo, Doyle, Richard, Eyer, Laurent, Fanaroff, Bernard, Fluke, Christopher, Forster, Francisco, Govender, Kevin, Graham, Matthew J., Hložek, Renée, Irawati, Puji, Kembhavi, Ajit, Kollmeier, Juna, Krone-Martins, Alberto, Kulkarni, Shri, Longo, Giuseppe, McBride, Vanessa, McIver, Jess, Mitra, Sanjit, Prusti, Timo, Ramaprakash, A. N., Reddy, Eswar, Reitze, David H., Rosa, Reinaldo R., Santos, Rafael, Sekiguchi, Kazuhiro, Sheth, Kartik, Somasundaram, Seetha, Souradeep, Tarun, Srianand, R., Subramaniam, Annapurni, Szalay, Alex, Tendulkar, Shriharsh, Trouille, Laura, Wadadekar, Yogesh, Whitelock, Patricia
Policy Brief on "AstroInformatics, Recommendations for Global Collaboration", distilled from panel discussions during S20 Policy Webinar on Astroinformatics for Sustainable Development held on 6-7 July 2023. The deliberations encompassed a wide array
Externí odkaz:
http://arxiv.org/abs/2401.04623
Autor:
Blinov, D., Maharana, S., Bouzelou, F., Casadio, C., Gjerløw, E., Jormanainen, J., Kiehlmann, S., Kypriotakis, J. A., Liodakis, I., Mandarakas, N., Markopoulioti, L., Panopoulou, G. V., Pelgrims, V., Pouliasi, A., Romanopoulos, S., Skalidis, R., Anche, R. M., Angelakis, E., Antoniadis, J., Medhi, B. J., Hovatta, T., Kus, A., Kylafis, N., Mahabal, A., Myserlis, I., Paleologou, E., Papadakis, I., Pavlidou, V., Papamastorakis, I., Pearson, T. J., Potter, S. B., Ramaprakash, A. N., Readhead, A. C. S., Reig, P., Słowikowska, A., Tassis, K., Zensus, J. A.
Publikováno v:
A&A 677, A144 (2023)
Optical polarimeters are typically calibrated using measurements of stars with known and stable polarization parameters. However, there is a lack of such stars available across the sky. Many of the currently available standards are not suitable for m
Externí odkaz:
http://arxiv.org/abs/2307.06151
Autor:
Maharana, S., Kiehlmann, S., Blinov, D., Pelgrims, V., Pavlidou, V., Tassis, K., Kypriotakis, J. A., Ramaprakash, A. N., Anche, R. M., Basyrov, A., Deka, K., Eriksen, H. K., Ghosh, T., Gjerløw, E., Mandarakas, N., Ntormousi, E., Panopoulou, G. V., Papadaki, A., Pearson, T., Potter, S. B., Readhead, A. C. S., Skalidis, R., Wehus, I. K.
Publikováno v:
A&A 679, A68 (2023)
Next-generation wide-field optical polarimeters like the Wide-Area Linear Optical Polarimeters (WALOPs) have a field of view (FoV) of tens of arcminutes. For efficient and accurate calibration of these instruments, wide-field polarimetric flat source
Externí odkaz:
http://arxiv.org/abs/2305.04270
Autor:
Tripathi, Durgesh, Chakrabarty, D., Nandi, A., Prasad, B. Raghvendra, Ramaprakash, A. N., Shaji, Nigar, Sankarasubramanian, K., Thampi, R. Satheesh, Yadav, V. K.
The Aditya-L1 is the first space-based solar observatory of the Indian Space Research Organization (ISRO). The spacecraft will carry seven payloads providing uninterrupted observations of the Sun from the first Lagrangian point. Aditya-L1 comprises f
Externí odkaz:
http://arxiv.org/abs/2212.13046