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Co-Authors
- M. C. Ramadevi
- S. Seetha
- Dipankar Bhattacharya
- B. T. Ravishankar
- N. Sitaramamurthy
- G. Meena
- M. Ramakrishna Sharma
- Ravi Kulkarni
- V. Chandra Babu
- Kumar
- Brajpal Singh
- Anand Jain
- S. Vaishali
- B. N. Ashoka
- Anil Agarwal
- K. Balaji
- Manoj Kumar
- Prashanth Kulshresta
- Pankaj Agarwal
- Mathew Sebastian
- V. Radhakrishna
- A. Tyagi
- S. Narendranath
- Koushal Vadodariya
- G. Balaji
- Neeraj Satya
- Akash Shetty
- H. N. Suresha Kumar
- Netra S. Pillai
- S. Tadepalli
- Venkata Raghavendra
- P. Sreekumar
- N. Valarmathi
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
Yadav, Reena
- Meera ki kavya dristi
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Authors
Affiliations
1 Research Scholar, Department of Hindi, Singhania University Pacheri Beri, Jhunjunu, Rajasthan, IN
1 Research Scholar, Department of Hindi, Singhania University Pacheri Beri, Jhunjunu, Rajasthan, IN
Source
International Journal of Literary Studies, Vol 1, No 1 (2011), Pagination: 77-78Abstract
No Abstract- Meera ki prem bhavna
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Authors
Affiliations
1 Department of Hindi, Singhania University Pacheri Beri, Jhunjunu, Rajasthan, IN
1 Department of Hindi, Singhania University Pacheri Beri, Jhunjunu, Rajasthan, IN
Source
International Journal of Literary Studies, Vol 1, No 1 (2011), Pagination: 68-70Abstract
No Abstract- Scanning Sky Monitor On-Board AstroSat
Abstract Views :335 |
PDF Views:124
Authors
M. C. Ramadevi
1,
S. Seetha
2,
Dipankar Bhattacharya
3,
B. T. Ravishankar
1,
N. Sitaramamurthy
1,
G. Meena
1,
M. Ramakrishna Sharma
1,
Ravi Kulkarni
1,
V. Chandra Babu
1,
Kumar
1,
Brajpal Singh
1,
Anand Jain
1,
Reena Yadav
1,
S. Vaishali
1,
B. N. Ashoka
1,
Anil Agarwal
1,
K. Balaji
4,
Manoj Kumar
5,
Prashanth Kulshresta
5,
Pankaj Agarwal
6,
Mathew Sebastian
6
Affiliations
1 Space Astronomy Group, SSIF, ISITE Campus, Karthik Nagar, Outer Ring Road, ISRO Satellite Centre, Bengaluru 560 037, IN
2 Indian Space Research Organisation Headquarters, Department of Space, Antariksh Bhavan, New BEL Road, Bengaluru 560 231, IN
3 Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune 411 007, IN
4 Spacecraft Mechanisms Group, ISAC, Old Airport Road, Vimanapura Post, Bengaluru 560 017, IN
5 Control and Digital Electronics Group, ISAC, Old Airport Road, Vimanapura Post, Bengaluru 560 017, IN
6 Vikram Sarabhai Space Center, Thiruvananthapuram 695 022, IN
1 Space Astronomy Group, SSIF, ISITE Campus, Karthik Nagar, Outer Ring Road, ISRO Satellite Centre, Bengaluru 560 037, IN
2 Indian Space Research Organisation Headquarters, Department of Space, Antariksh Bhavan, New BEL Road, Bengaluru 560 231, IN
3 Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune 411 007, IN
4 Spacecraft Mechanisms Group, ISAC, Old Airport Road, Vimanapura Post, Bengaluru 560 017, IN
5 Control and Digital Electronics Group, ISAC, Old Airport Road, Vimanapura Post, Bengaluru 560 017, IN
6 Vikram Sarabhai Space Center, Thiruvananthapuram 695 022, IN
Source
Current Science, Vol 113, No 04 (2017), Pagination: 599-601Abstract
Scanning Sky Monitor (SSM) on-board AstroSat is a wide-field imager to monitor the X-ray sky in the energy band 2.5-10 keV. The primary science objective of SSM is to detect and locate transient X-ray sources in the sky. Once detected the information is to be provided to the astronomical community for follow-up observations to do a more detailed study of the source. Long-term monitoring of known X-ray transient sources is also one of the science objectives of SSM. The instrument constitutes three units of 1D positionsensitive propotional counters with coded masks on each, all three mounted on a platform capable of rotation to scan about 50% of the sky in one full rotation. The angular resolution of each unit in SSM is 12' x 2.5°. Sensitivity of SSM is ~30 milliCrab at 3 sigma in 10 min integration time. This article briefly discusses the instrument and a few early results since the launch of AstroSat.Keywords
AstroSat, Crab, Scanning Sky Monitor, X-Ray Transient Sources.References
- Agrawal, P. C., A broad spectral band Indian Astronomy satellite AstroSat. Adv. Space Res., 2006, 38, 29892994.
- Singh, K. P. et al., AstroSat mission. Proc. SPIE, 2014, 91442T, 9144-100; doi:10.1117/12.2062667.
- Levine, A. M. et al., First results from the All-Sky Monitor on the Rossi X-ray Timing Explorer. ApJ, 1996, 469, L33.
- Seetha, S. et al., The Scanning Sky Monitor (SSM) on AstroSat. Adv. Space Res., 2006, 38, 2995–2998.
- Matsuoka, M. et al., The MAXI mission on the ISS: science and instruments for monitoring All-sky X-ray images. PASJ, 2009, 61, 999.
- Balaji, K., Narendra, S., Nagesh, G., Sridharamurthy, V. and Bhat, N. C., Development of mechanisms for AstroSat. In Proceedings of the 5th National Seminar and Exhibition on Aerospace and Related Mechanisms, ISRO Satellite Centre, Bengaluru, 18–19 November 2005, ARMS-05-MSA-02, pp. 67–73.
- Ramadevi, M. C., Seetha, S., Babu, V. C., Ashoka, B. N. and Sreekumar, P., Optimization of gas proportional counters for Scanning Sky Monitor (SSM) onboard AstroSat. Adv. Space Res., 2006, 38, 3002–3004.
- Ramadevi, M. C. et al., Scanning sky monitor (SSM) on-board AstroSat. Exp. Astron., 2017, doi:10.1007/s10686-017-9536-3.
- Ramadevi, M. C. et al., Early in-orbit performance of Scanning Sky Monitor onboard AstroSat. J. Astrophys. Astr., 2016; doi:12.3456/s78910-011-012-3.
- Ramadevi, M. C. et al., Detection of beta-class variability in black hole source GRS 1915+105 by AstroSat Scanning Sky Monitor. The Astronomer’s Telegram ATel #8185, 2015.
- Chandrayaan-2 Large Area Soft X-ray Spectrometer
Abstract Views :407 |
PDF Views:117
Authors
V. Radhakrishna
1,
A. Tyagi
1,
S. Narendranath
1,
Koushal Vadodariya
1,
Reena Yadav
1,
Brajpal Singh
1,
G. Balaji
1,
Neeraj Satya
1,
Akash Shetty
1,
H. N. Suresha Kumar
1,
Kumar
1,
S. Vaishali
1,
Netra S. Pillai
1,
S. Tadepalli
1,
Venkata Raghavendra
1,
P. Sreekumar
2,
Anil Agarwal
1,
N. Valarmathi
1
Affiliations
1 U.R. Rao Satellite Centre, ISRO, Bengaluru 560 017, IN
2 Space Science Programme Office, ISRO Head Quarters, Bengaluru 560 017, IN
1 U.R. Rao Satellite Centre, ISRO, Bengaluru 560 017, IN
2 Space Science Programme Office, ISRO Head Quarters, Bengaluru 560 017, IN
Source
Current Science, Vol 118, No 2 (2020), Pagination: 219-225Abstract
Chandrayaan-2 Large Area Soft X-ray Spectrometer (CLASS) is an X-ray fluorescence spectrometer experiment aimed at mapping the abundances of major rock-forming elements on the lunar surface. The instrument consists of swept charge devices with a passive collimator, visible light blocking filters and signal processing electronics designed and built at U.R. Rao Satellite Centre, Indian Space Research Organisation. CLASS will be the largest collecting area spectrometer flown to the Moon, and thus is expected to map the abundances of lunar elements with a higher sensitivity than ever at soft X-ray energies.Keywords
Moon, Rock-forming Elements, Spectrometer, X-ray Fluorescence.References
- Adler, I. et al., Apollo 15 and 16 results of the integrated geochemical experiment. Moon, 1973, 7, 487–504.
- Clarke, P. E. and Hawke, B. R., The lunar farside: the nature of the highlands east of Mare smythii. Earth, Moon Planets, 1991, 53, 93–107.
- Lawrence, D. J., Feldman, W. C., Barraclough, B. L. and Binder, A. B., Global elemental maps of the Moon: the Lunar Prospector Gamma Ray Spectrometer. Science, 1998, 281, 1484– 1489.
- Prettyman, T. H., Jagerty, J. J., Elphic, R. C., Feldman, W. C., Lawrence, D. J., Mckinney, M. K. and Vaniman, D. T., Elemental composition of the lunar surface: analysis of gamma ray spectroscopy data from Lunar Prospector. JGR, 2006, 111, E12007 (1–41).
- Hasebe, N., Yamashita, N., Karouji, Y., Kobayashi, S., Hareyama, M., Komatsu, S. and Kim, K. J., Lunar gamma-ray observation by Kaguya GRS, 2010. In Advances in Geosciences, 2010, Volume 19: Planetary Science, pp. 57–67.
- Grande, M. et al., The D-CIXS X-ray spectrometer on the SMART-1 mission to the Moon – first results. Planet. Space Sci., 55, 494–502.
- Swinyard, B. M. et al., X-ray fluorescence observations of the Moon by SMART-1/D-CIXS and the first detection of Ti-Ka from the lunar surface. Planet. Space Sci., 2009, 57, 744–750.
- Okada, T. et al., X-ray fluorescence experiments on the SELENE (KAGUYA) spacecraft. 2008, In 39th Lunar and Planetary Science Conference Abstr., 1966.
- Dong, W.-D., Zhang, X., Zhu, M.-H., Xu, A. A. and Tang, Z. S., Global Mg/Si and Al/Si distributions on lunar surface derived from Chang E-2 X-ray spectrometer. Res. Astron. Astrophys., 2015, 16; 10.1088/1674-4527/16/1/004.
- Narendranath, S. et al., Lunar X ray fluorescence observations by the Chandrayaan 1 X-ray spectrometer (C1XS): results from the nearside southern highlands. Icarus, 2011, 214, 53–66.
- Athiray, P. S., Narendranath, S., Sreekumar, P. and Grande, M., C1XS results – first measurement of enhanced sodium on the lunar surface, PSS, 2014, 104, 279–287.
- Radhakrishna, V. et al., The Chandrayaan-2 Large area X-ray Spectrometer. In Lunar and Planetary Science Conference, abstr. no. 1708, 2011.
- Shanmugam, M., Vadawale, S., Acharya, Y. B., Goyal, S. K., Patel, A., Shah, B. and Murthy, S. V. S., The solar X-ray monitor on Chandrayaan-2. In 43rd LPSC, abstr. no. 1858, 2012.
- Lowe, B. G., Holland, A. D., Hutchinson, I. B., Burt, D. J. and Pool, P. J., The Swept Charge Devices, a novel CCD – Based EDX detector: first results, NIM A, 2001, 458, 568–579.
- Wu, Y. P., Dahai, R. and You, Z., HXMT satellite for space hard X-ray observations. Adv. Space. Res., 2004, 34, 2667–2672.
- Space Environment Information System; http://spenvis.oma.be.
- Agostinelli, S. et al., Geant4: a simulation Toolkit. Nucl. Instrum. Methods A, 2003, 506, 250–303.
- Arnaud, K. A., Astronomical data analysis software and systems. Astron. Softw. Proc., 1996, 101, 17–20.
- Athiray, P. S. et al., Experimental validation of XRF inversion code for Chandrayaan-1. Planet. Space Sci., 2013, 89, 183–187.
- Athiray, P. S., Narendranath, S., Sreekumar, P., Dash, S. K. and Babu, B. R. S., Validation of methodology to derive elemental abundances from X-ray observations on Chandrayaan-1. Planet. Space Sci., 2013, 75, 188–194.