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Co-Authors
- B. Raghavendra Prasad
- Dipankar Banerjee
- Jagdev Singh
- S. Nagabhushana
- Amit Kumar
- P. U. Kamath
- S. Kathiravan
- Suresh Venkata
- N. Rajkumar
- V. Natarajan
- Madhur Juneja
- Pawan Somu
- Vaibhav Pant
- Nigar Shaji
- K. Sankarsubramanian
- Asit Patra
- R. Venkateswaran
- S. Narendra
- T. R. Haridas
- Shibu K. Mathew
- R. Mohan Krishna
- K. Amareswari
- Bhavesh Jaiswal
- K. Sankarasubramanian
- Manju Sudhakar
- Anuj Nandi
- M. C. Ramadevi
- Ankur Kushwaha
- Anil Agarwal
- Arjun Dey
- Bhuwan Joshi
- Brajpal Singh
- V. Girish
- Ishan Tomar
- Kamal Kumar Majhi
- Kumar
- Manjunath Olekar
- Monoj Bug
- Manohar Pala
- Mukund Kumar Thakur
- Rajeev R. Badagandi
- B. T. Ravishankar
- Sarthak Garg
- N. Sitaramamurthy
- N. Sridhara
- C. N. Umapathy
- Vinod Kumar Gupta
- Vivek Kumar Agrawal
- B. Yougandar
Journals
Year
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Adoni, Abhijit Avinash
- Visible Emission Line Coronagraph on Aditya-L1
Abstract Views :255 |
PDF Views:70
Authors
B. Raghavendra Prasad
1,
Dipankar Banerjee
1,
Jagdev Singh
1,
S. Nagabhushana
1,
Amit Kumar
1,
P. U. Kamath
1,
S. Kathiravan
1,
Suresh Venkata
1,
N. Rajkumar
1,
V. Natarajan
1,
Madhur Juneja
1,
Pawan Somu
1,
Vaibhav Pant
1,
Nigar Shaji
2,
K. Sankarsubramanian
2,
Asit Patra
3,
R. Venkateswaran
4,
Abhijit Avinash Adoni
2,
S. Narendra
2,
T. R. Haridas
5,
Shibu K. Mathew
6,
R. Mohan Krishna
2,
K. Amareswari
2,
Bhavesh Jaiswal
2
Affiliations
1 Indian Institute of Astrophysics, 2nd Block, Koramangala, Bengaluru 560 034, IN
2 ISRO Satellite Centre, Old Airport Road, Vimanapura Post, Bengaluru 560 017, IN
3 Space Applications Centre, Jodhpur Tekra, Ambawadi Vistar, P.O., Ahmedabad 380 015, IN
4 Laboratory for Electro-Optics Systems, First Phase, Peenya Industrial Estate, Bengaluru 560 058, IN
5 ISRO Inertial Systems Unit, Vattiyoorkavu PO, Thiruvananthapuram 695 013, IN
6 Udaipur Solar Observatory, Near Fatehpur Lake, Shilpgram, Udaipur 313 004, IN
1 Indian Institute of Astrophysics, 2nd Block, Koramangala, Bengaluru 560 034, IN
2 ISRO Satellite Centre, Old Airport Road, Vimanapura Post, Bengaluru 560 017, IN
3 Space Applications Centre, Jodhpur Tekra, Ambawadi Vistar, P.O., Ahmedabad 380 015, IN
4 Laboratory for Electro-Optics Systems, First Phase, Peenya Industrial Estate, Bengaluru 560 058, IN
5 ISRO Inertial Systems Unit, Vattiyoorkavu PO, Thiruvananthapuram 695 013, IN
6 Udaipur Solar Observatory, Near Fatehpur Lake, Shilpgram, Udaipur 313 004, IN
Source
Current Science, Vol 113, No 04 (2017), Pagination: 613-615Abstract
Solar coronagraph mimics total solar eclipse by blocking the solar disk and enabling the observation of extended coronal atmosphere of the Sun. Visible Emission Line Coronagraph (VELC), on-board Aditya-L1 space mission, is an internally occulted solar coronagraph capable of simultaneous imaging, spectroscopy and spectro-polarimetry close to the solar limb. This payload is designed to study the coronal plasma and heating of the solar corona. Studying development, dynamics and origin of coronal mass ejections and measurement of coronal magnetic fields over active regions are other important science goals. VELC is designed to image the solar corona at 500 nm with an angular resolution of 5" over a field of view (FOV) of 1.05-3 Ro. It also facilitates simultaneous multi-slit spectroscopy at three emission lines, viz. Fe XIV (530.3 nm), Fe XI (789.2 nm) and Fe XIII (1074.7 nm) with a spectral resolution of 28 , 31 and 202 mÅ/pixel respectively, over an FOV of 1.05-1.5 Ro. The payload has a dual-beam spectro-polarimetry channel for magnetic field measurements at 1074.7 nm.Keywords
Coronagraph, Coronal Mass Ejection, Payload, Solar Corona.References
- Aditya-L1 first Indian mission to study the Sun; http://www.isro.gov.in/aditya-l1-first-indian-missiontostudy-sun (12 May 2016).
- Singh, J. et al., Proposed visible emission line space solar coronagraph. Curr. Sci., 2011, 100(2), 167–174.
- Singh, J., Bayanna, R. and Sankarasubramanian, K., Visible emission line space solar coronagraph: science and optical design. J. Opt., 2013, 42(2), 96–100.
- Sankarasubramanian, K., Solar coronal studies with Aditya-1 mission. In 31st ASI Meeting, ASI Conference Series, 2013, vol. 9, pp. 43–48.
- Venkata, S. N., Prasad, B. R., Nalla, R. K. and Singh, J., Scatter studies for visible emission line coronagraph on board ADITYAL1 mission. J. Astron. Telesc. Instrum. Syst., 2017, 3, 014002.
- Bayanna, R. A., Mathew, S. K., Sankarasubramanian, K., Venkatakrishnan, P., Singh, J. and Prasad, B. R., Issues with external occultation of a coronagraph. Exp. Astron., 2011, 29, 145–153.
- X-Ray Spectrometers On-Board Aditya-L1 for Solar Flare Studies
Abstract Views :209 |
PDF Views:62
Authors
K. Sankarasubramanian
1,
Manju Sudhakar
1,
Anuj Nandi
1,
M. C. Ramadevi
1,
Abhijit Avinash Adoni
1,
Ankur Kushwaha
1,
Anil Agarwal
1,
Arjun Dey
1,
Bhuwan Joshi
2,
Brajpal Singh
1,
V. Girish
1,
Ishan Tomar
1,
Kamal Kumar Majhi
1,
Kumar
1,
Manjunath Olekar
1,
Monoj Bug
1,
Manohar Pala
1,
Mukund Kumar Thakur
1,
Rajeev R. Badagandi
1,
B. T. Ravishankar
1,
Sarthak Garg
1,
N. Sitaramamurthy
1,
N. Sridhara
1,
C. N. Umapathy
1,
Vinod Kumar Gupta
1,
Vivek Kumar Agrawal
1,
B. Yougandar
1
Affiliations
1 ISITE Campus, ISRO Satellite Centre, Outer Ring Road, Marathahalli, Bengaluru 560 037, IN
2 Udaipur Solar Observatory, Physical Research Laboratory, Udaipur 313 004, IN
1 ISITE Campus, ISRO Satellite Centre, Outer Ring Road, Marathahalli, Bengaluru 560 037, IN
2 Udaipur Solar Observatory, Physical Research Laboratory, Udaipur 313 004, IN
Source
Current Science, Vol 113, No 04 (2017), Pagination: 625-627Abstract
Aditya-L1 mission will carry two high-spectral resolution X-ray spectrometers to study solar flares. The soft X-ray spectrometer will cover the energy range from 1 to 30 keV, while the hard X-ray spectrometer will cover from 10 to 150 keV. These two instruments together will provide opportunities to study the plasma parameters during solar flares as well as acceleration mechanisms of energetic particles during the flaring time.Keywords
Coronal Heating, Solar Flares, X-Ray Spectrometers.References
- Benz, A. O., Flare observations. Living Rev. Sol. Phys., 2017, 14(2), 1–59.
- Hannah, I. G. et al., Microflares and the statistics of X-ray flares. Space Sci. Rev., 2011, 159, 263–300.
- Narendranath, S. et al., Elemental abundances in the solar corona as measured by the X-ray solar monitor onboard Chandrayaan-1. Sol. Phys., 2014, 289, 1585–1595.
- Joshi, B. et al., Pre-flare activity and magnetic reconnection during the evolutionary stages of energy release in a solar eruptive flare. ApJ, 2011, 743, 195–208.
- Rao, A. R. et al., RT-2 detection of quasi-periodic pulsations in the 2009 July 5 solar hard X-ray flare. ApJ, 2010, 714, 1142–1148.
- Yashiro, S. et al., Spatial relationship between solar flares and coronal mass ejections. ApJ, 2008, 673, 1174–1180.
- Chifor, C. et al., The early phases of a solar prominence eruption and associated flare: a multi-wavelength analysis. A&A, 2006, 458, 965–973.
- Warmuth, A. et al., Rapid changes of electron acceleration characteristics at the end of the impulsive phase of an X-class solar flare. ApJ, 2009, 699, 917.
- SoLEXS Team, SoLEXS PDR document, ISRO-ISACADITYA-L1RR-1343, 2016.
- HEL1OS Team, HEL1OS PDR document, ISRO-ISAC-ADITYA-L1RR-1342, 2016.