Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Ch V Sastry"'
ESTIMATION OF MAGNETIC FIELD IN THE SOLAR CORONAL STREAMERS THROUGH LOW FREQUENCY RADIO OBSERVATIONS
Publikováno v:
The Astrophysical Journal. 711:1029-1032
The observations of circularly polarized thermal radio emission from solar coronal streamers at two low frequencies, viz., 77 and 109 MHz, are used to estimate the magnetic field strength (B) at their corresponding radial distances r≈ 1.7 and 1.5 s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fbc2a9d499df0f6dced585939fd8cb1
https://doi.org/10.1088/0004-637x/711/2/1029
https://doi.org/10.1088/0004-637x/711/2/1029
Autor:
Ch. V. Sastry
Publikováno v:
The Astrophysical Journal. 697:1934-1939
The Haselgrove equations for radio-ray propagation in an anisotropic medium are used to determine the degree of circular polarization (dcp) of the low-frequency thermal radio emission from the outer solar corona with a magnetic field. The variation o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f54fab0d642dfae2767bc7108a7ce59
https://doi.org/10.1088/0004-637x/697/2/1934
https://doi.org/10.1088/0004-637x/697/2/1934
Publikováno v:
Solar Physics. 253:319-327
An interferometer antenna system to observe polarized radio emission from the solar corona at different frequencies in the range 30 – 110 MHz has been commissioned recently by the Indian Institute of Astrophysics at the Gauribidanur Radio Observato
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::428932b2f4f97c2f40507f083833f781
https://doi.org/10.1007/s11207-008-9272-y
https://doi.org/10.1007/s11207-008-9272-y
Autor:
Ch V Sastry and P S Gill
Publikováno v:
Proceedings of Indian National Science Academy, Vol 26, Iss 1A (2015)
Diurnal Variation of Cosmic Ray Neutron Intensity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::b1af89705fc199084ee6af9c22f0314d
https://insa.nic.in/writereaddata/UpLoadedFiles/PINSA/Vol26A_1960_1_Art05.pdf
https://insa.nic.in/writereaddata/UpLoadedFiles/PINSA/Vol26A_1960_1_Art05.pdf
Publikováno v:
Experimental Astronomy. 21:31-40
A low frequency (40–150 MHz) radioheliograph for observations of the solar corona is in operation for the last few years at the Gauribidanur radio observatory, about 100 km north of Bangalore. The array has 32 antenna groups and a 1-bit digital cor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::069b3a7518574ce95c2a18a511b3a676
https://doi.org/10.1007/s10686-006-9065-y
https://doi.org/10.1007/s10686-006-9065-y
Publikováno v:
Astronomy & Astrophysics. 431:353-357
We report radio observations of quasi-periodic type III burst emission from the solar corona in close association with the 2B/X2.8 flare of December 11, 2001 at two frequencies (151.5 and 109 MHz). The measured mean period was ≈11.6 s. We attempted
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6716cb3f17c019f5b8337abfcde565d
https://doi.org/10.1051/0004-6361:20041130
https://doi.org/10.1051/0004-6361:20041130
Publikováno v:
The Astrophysical Journal. 591:L163-L166
We report direct imaging observations of the propagation of a diffuse thermal radio enhancement in close temporal and spatial association with a "halo" coronal mass ejection from the solar atmosphere, in the metric wavelength regime. The speed and ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::708b37dac43b7890c69aa1495c21666f
https://doi.org/10.1086/377162
https://doi.org/10.1086/377162
Publikováno v:
Astrophysics and Space Science. 282:15-28
The Mauritius Radio Telescope (MRT) has been built with the main objective of surveying the southern sky at meter wavelengths. MRT is a Fourier synthesis, T-shaped non-coplanar array. It consists of a2048 m long East-West arm with 1024 fixed helices
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18305d7d0cae2104eb514b842ef66867
https://doi.org/10.1023/a:1021121613990
https://doi.org/10.1023/a:1021121613990
Publikováno v:
Astronomy & Astrophysics. 367:1112-1116
A new digital spectrograph for obtaining a dynamic spectrum of radio burst emission from the Sun in the frequency range 30{80 MHz has been recently commissioned at the Gauribidanur Radio Observatory (Lat: 1336 0 12 00 N and Long: 7727 0 07 00 E), abo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::638cab3aff7a706a9658cb980146ce1b
https://doi.org/10.1051/0004-6361:20000540
https://doi.org/10.1051/0004-6361:20000540
Publikováno v:
Advances in Space Research. 25:1847-1850
We report high angular resolution observations of the outer solar corona carried out at 75 MHz from the Gauribidanur Radio Observatory (Long: 77°26′12″ E, Lat: 13°36′12″ N) about 100 km north of Bangalore, India, during the solar eclipse of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0b61a8cb088cb3dd7f6939d14259e3c
https://doi.org/10.1016/s0273-1177(99)00596-7
https://doi.org/10.1016/s0273-1177(99)00596-7