NDLI: Interplanetary-scintillation observations of coronal mass ejections near the maximum of the 24th solar-activity cycle

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Interplanetary-scintillation observations of coronal mass ejections near the maximum of the 24th solar-activity cycle

Content Provider	Springer Nature Link
Author	Glyantsev, A. V. Tyul’bashev, S. A. Chashei, I. V. Shishov, V. I.
Copyright Year	2015
Abstract	The mean velocities of coronal mass ejections (CMEs) detected in 2011–2012 are estimated from interplanetary-scintillation observations carried out with the Pushchino Big Scanning Antenna 111 MHz. The mean velocities are estimated based on the interval between the X-ray burst associated with the birth of the CME and the increase in the observed scintillations. The estimated mean CME velocity within the corona and the region probed by the scintillations at elongations from 40° to 50° is close to the mean velocity between the solar corona and the Earth. In half of the studied events, the estimated accuracy of the CME arrival time to the Earth is several hours. The CME velocities estimated from the delay between the X-ray bursts and the scintillation increase are significantly closer to the real velocities than the velocities estimated from the widths of the temporal spectra of the scintillations.
Starting Page	40
Ending Page	45
Page Count	6
File Format	PDF
ISSN	10637729
Journal	Astronomy Reports
Volume Number	59
Issue Number	1
e-ISSN	15626881
Language	English
Publisher	Pleiades Publishing
Publisher Date	2015-01-21
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Astronomy, Observations and Techniques
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics Space and Planetary Science

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