TY  - CONF
AU  - Chowdhury, Partha
TI  - Periodicities in the soft X-ray emission from the solar corona during descending phase of cycle 23
CY  - Hamburg
PB  - Verlag Deutsches Elektronen-Synchrotron
M1  - PUBDB-2016-05928
SN  - 978-3-935702-59-1
T2  - DESY-PROC
SP  - 141-146
PY  - 2014
AB  - 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   ∼ 13.5 days,   ∼ 27 days, and near Rieger period of   ∼ 181 days and   ∼ 1.24 years in all energy bands. Further to this, other periods like   ∼ 31,  ∼ 48,  ∼ 57,  ∼ 76,  ∼ 96,  ∼ 130,  ∼ 227 and  ∼ 303 days are also detected in different energy bands. We discuss our results in the light of previous observations and existing numerical models.
T2  - 10th Patras Workshop on Axions, WIMPs and WISPs
CY  - 29 Jun 2014 - 4 Jul 2014, Geneva (Switzerland)
Y2  - 29 Jun 2014 - 4 Jul 2014
M2  - Geneva, Switzerland
LB  - PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
DO  - DOI:10.3204/DESY-PROC-2014-03/chowdhury_partha
UR  - https://bib-pubdb1.desy.de/record/315521
ER  -