Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Sridharan, Rengaswamy"'
Publikováno v:
Women in Optics and Photonics in India 2022.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75104b8fb47d2e8422bc18cc2a8ca86d
https://doi.org/10.1117/12.2671735
https://doi.org/10.1117/12.2671735
Autor:
Sridharan Rengaswamy, P. Manoj, R. Arun, G Maheshwar, Sreeja S. Kartha, Blesson Mathew, Mayank Narang
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 501:1243-1252
The intermediate mass Herbig Ae star V1787 Ori is a member of the L1641 star-forming region in the Orion A molecular cloud. We report the detection of an M-type companion to V1787 Ori at a projected separation of 6.66" (corresponding to 2577 au), fro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a73f649f60c2b79e239887734d8273c8
https://doi.org/10.1093/mnras/staa3652
https://doi.org/10.1093/mnras/staa3652
Publikováno v:
Solar Physics. 296
The parameter-search method (PSM) established by Rengaswamy, Ravindra, and Prabhu (Solar Phys. 294, 5, 2019) for measuring the terrestrial atmospheric seeing from long-exposure solar H $\upalpha$ images is further validated – through simulations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20f4bbb34eddbdd8de42c7208529b188
https://doi.org/10.1007/s11207-021-01807-3
https://doi.org/10.1007/s11207-021-01807-3
Publikováno v:
Solar Physics. 295
Efforts are made to demonstrate high-resolution observations of the solar atmosphere using spatial interferometry. Covering the telescope pupil with a Fizeau mask consisting of two small circular apertures separated by a vector distance known as the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96e4259ca18c6a1771dfdb8a5eb9ed78
https://doi.org/10.1007/s11207-020-1597-1
https://doi.org/10.1007/s11207-020-1597-1
Publikováno v:
Springer Proceedings in Physics ISBN: 9789811564666
Astronomical Adaptive Optics (AO) technology enables real time diffraction-limited imaging and spectroscopy with high sensitivity from ground-based telescopes. It is achieved by using corrective optical elements in the path of the light beam before t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5920ff16844c3d82d1c5537e0c7f103
https://doi.org/10.1007/978-981-15-6467-3_1
https://doi.org/10.1007/978-981-15-6467-3_1
Publikováno v:
Solar Physics. 294
We extend our modified parameter search method (Sridharan, Dashora, and Venkatakrishnan, Solar Phys. 222, 35, 2004) of estimating the Fried parameter ( $r_{0}$ ) from long exposure images to the images obtained from the H $\alpha $ -telescope install
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07d10de538b1651de6cb74f882d66328
https://doi.org/10.1007/s11207-019-1393-y
https://doi.org/10.1007/s11207-019-1393-y
Autor:
Sreekanth Reddy Vallapureddy, Sridharan Rengaswamy, Ravinder K. Banyal, Aishwarya Selvaraj, P Umesh Kamath
Publikováno v:
Research in Astronomy and Astrophysics. 20:012
We developed a tip-tilt system to compensate the turbulence induced image motion for the 1.3 m telescope at Vainu Bappu Observatory, at Kavalur. The instrument is designed to operate at the visible wavelength band (480 − 700 nm) with a field of vie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f30c408a00c80e3927610e4f6719d968
https://doi.org/10.1088/1674-4527/20/1/12
https://doi.org/10.1088/1674-4527/20/1/12
Autor:
Sridharan, Rengaswamy1 sridhar@prl.ernet.in
Publikováno v:
Bulletin of the Astronomical Society of India. Sep2002, Vol. 30 Issue 3, p837-845. 9p. 5 Black and White Photographs.
Autor:
R. Grellmann, Dieter Schertl, Michael F. Corcoran, Sridharan Rengaswamy, Gerd Weigelt, T. I. Madura, D. J. Hillier, Th. Rivinius, F. Patru, M. Teodoro, Markus Schöller, K. Ohnaka, M. Heininger, S. Guieu, A. Mérand, R. G. Petrov, T. R. Gull, Nicola Clementel, Karl-Heinz Hofmann, A. F. J. Moffat, Stefan Kraus, F. Millour, W. J. de Wit, J. H. Groh, Andrea Mehner, Noel D. Richardson, C. A. Hummel, Augusto Damineli, Markus Wittkowski
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2016, ⟨10.1051/0004-6361/201628832⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2016, ⟨10.1051/0004-6361/201628832⟩
International audience; Context. The mass loss from massive stars is not understood well. Eta Car is a unique object for studying the massive stellar wind during the LBV phase. It is also an eccentric binary with a period of 5.54 yr. The nature of bo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e1398ed82b1220d3cf97bd3ced6cae2
Autor:
Jayant Murthy, Joice Mathew, Ambily Suresh, S. Sriram, Margarita Safonova, Mayuresh Sarpotdar, Sridharan Rengaswamy, Nirmal Kaipachery, A. G. Sreejith
Publikováno v:
Journal of Astronomical Telescopes, Instruments, and Systems. 4:1
Spatial heterodyne spectroscopy (SHS) is an interferometric technique similar to the Fourier transform spectroscopy with heritage from the Michelson interferometer. An imaging detector is used at the output of an SHS to record the spatially heterodyn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c8e782fbc6c281917e4dd893d9a0b85
https://doi.org/10.1117/1.jatis.4.2.025001
https://doi.org/10.1117/1.jatis.4.2.025001