Interplanetary scintillation network for 3-dimensional space exploration in India
| Autor: | S. K. Alurkar, R. V. Bhonsle, A. K. Sharma, K. S. Lali, A. D. Bobra, N. S. Nirman, P. Janardhan, P. Venat |
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| Rok vydání: | 1990 |
| Předmět: |
Physics
Astrophysics::High Energy Astrophysical Phenomena Astrophysics::Instrumentation and Methods for Astrophysics Aerospace Engineering Astronomy Astrophysics::Cosmology and Extragalactic Astrophysics Wind speed law.invention Radio telescope Telescope Solar wind Interplanetary scintillation law Physics::Space Physics Astrophysics::Solar and Stellar Astrophysics Interplanetary spaceflight Heliosphere Radio wave |
| Zdroj: | Acta Astronautica. 21:189-196 |
| ISSN: | 0094-5765 |
| DOI: | 10.1016/0094-5765(90)90111-w |
| Popis: | Recently, PRL commissioned three large radio telescopes operating at 103 MHz in order to record interplanetary scintillations (IPS) of compact radio sources from Thaltej (Ahmedabad), Rajkot and Surat, as a function of time for the study of solar wind velocity in three dimensions around the Sun between 0.3–1.0 AU. IPS are caused due to irregular scattering of radio waves from quasars by the electron density inhomogeneities in the solar wind that continually blow in three dimensions throughout the heliosphere. When one observes IPS from large number of sources each day, one can determine day-to-day changes in the average 3-dimensional structure of the solar wind velocity. The large IPS telescope at Thaltej would enable us to prepare the so called “ g -maps” of the sky that would indicate regions of enhanced interplanetary plasma turbulence and their evolution on day-to-day basis. This paper describes the 3-station IPS telescope network in India. |
| Databáze: | OpenAIRE |
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