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| Contribution to a conference proceedings/Contribution to a book | PUBDB-2016-05928 |
2014
Verlag Deutsches Elektronen-Synchrotron
Hamburg
ISBN: 978-3-935702-59-1
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Please use a persistent id in citations: doi:10.3204/DESY-PROC-2014-03/chowdhury_partha
Abstract: We have studied the time series of full disk integrated soft X-ray emission from the solar corona during January 2004 to December 2008, covering the entire descending phase of solar cycle 23 from a global point of view. We employ the daily X-ray index (DXI) derived from 1s cadence X-ray observations from the Si detector of ``Solar X-ray Spectrometer (SOXS)'' mission in four different energy bands ranging between $6 - 25~KeV$. The daily time series is subjected to power spectrum analysis after appropriate correction for noise. Lomb-Scargle periodogram technique has shown prominent periods of $ \sim13.5$ days, $ \sim 27$ days, and near Rieger period of $ \sim 181$ days and $ \sim 1.24$ years in all energy bands. Further to this, other periods like $ \sim 31$, $\sim 48$, $\sim 57$, $\sim 76$, $\sim 96$, $\sim 130$, $\sim 227$ and $\sim 303$ days are also detected in different energy bands. We discuss our results in the light of previous observations and existing numerical models.
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Book/Proceedings/Report
Axions, WIMPs and WISPs: Proceedings, 10th Patras workshop, PATRAS 2014, AXION-WIMP 2014, Geneva, Switzerland, June 29-July 4, 2014
10th Patras Workshop on Axions, WIMPs and WISPs, AXION-WIMP 2014, GenevaGeneva, Switzerland, 29 Jun 2014 - 4 Jul 2014
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-PROC 207 p (2014) [10.3204/DESY-PROC-2014-03]
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