NDLI: NARROWBAND dm-SPIKES OBSERVED DURING THE 15 JUNE 1991 FLARE

Content Provider	Springer Nature Link
Author	Zlobec, Paolo Karlický, Marian
Copyright Year	1998
Abstract	We performed a statistical analysis of the dm-spikes that were present for an exceptionally long period (more than 10 min) during the 15 June 1991 flare. We realized that the polarization degree, the duration and the mutual delay of the R- and L-components were nearly the same for both CW and ACW cases. CW (ACW) means the clockwise (anti-clockwise) sense of the loop in the R−L versus L+R plots, when the data of a single spike are considered according to the time sequence. The presence of such a loop is determined by the delay of the weaker (stronger) polarimetric component in respect to the other one. The increase of the polarization percentage started first at 610, then at 408 and afterwards at 327 MHz. It was found that the duration of spikes was almost completely independent from the polarization degree. The mean duration of spikes at different frequencies corresponds to that computed using the formula of Güdel and Benz. Like the mean duration, also the mean delay decreased with increasing frequency. The CW/ACW ratio varied simultaneously for the frequencies we recorded during an interval of about three minutes. Spikes were considered as the radio manifestation of superthermal electrons accelerated in the MHD cascading waves. The evolution of spikes and their parameters were qualitatively interpreted within the flare reconnection model with turbulent plasma outflows.
Starting Page	477
Ending Page	496
Page Count	20
File Format	PDF
ISSN	00380938
Journal	Solar Physics
Volume Number	182
Issue Number	2
e-ISSN	1573093X
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	1998-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Astrophysics
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics Space and Planetary Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Linear and nonlinear statistical analysis of narrow-band dm-spikes observed during the June 15, 1991 flare

Power-law spectra of 1–2 GHz narrowband dm-spikes

Narrowband spikes observed during the 13 June 2012 flare in the 800-2000 MHz range

The Eruptive Flare of 15 November 1991: Preflare Phenomena

Gamma-Rays and Neutrons as a Probe of Flare Proton Spectra: the Solar Flare of 11 June 1991

Narrowband Spikes Observed during the 2013 November 7 Flare

Solar Radio Spikes in 2.6 – 3.8 GHz during the 13 December 2006 Event

The Storm of Decameter Spikes During the Event of 14 June 2012

Numerical Simulation of the Creation of a Current Sheet During the Flare of 30 May 1991

NARROWBAND dm-SPIKES OBSERVED DURING THE 15 JUNE 1991 FLARE

Similar Documents

Linear and nonlinear statistical analysis of narrow-band dm-spikes observed during the June 15, 1991 flare

Power-law spectra of 1–2 GHz narrowband dm-spikes

Narrowband spikes observed during the 13 June 2012 flare in the 800-2000 MHz range

The Eruptive Flare of 15 November 1991: Preflare Phenomena

Gamma-Rays and Neutrons as a Probe of Flare Proton Spectra: the Solar Flare of 11 June 1991

Narrowband Spikes Observed during the 2013 November 7 Flare

Solar Radio Spikes in 2.6 – 3.8 GHz during the 13 December 2006 Event

The Storm of Decameter Spikes During the Event of 14 June 2012

Numerical Simulation of the Creation of a Current Sheet During the Flare of 30 May 1991

NARROWBAND dm-SPIKES OBSERVED DURING THE 15 JUNE 1991 FLARE