IIA Institutional Repository

Browsing IIAP Publications by Subject "Corona"

Browsing IIAP Publications by Subject "Corona"

Sort by: Order: Results:

  • Oscillations in active region fan loops: observations from EIS/Hinode and AIA/SDO 
    Krishna Prasad, S; Banerjee, D; Singh, J (Springer, 2012-11)
    Active region fan loops in AR 11076 were studied, in search of oscillations, using high cadence spectroscopic observations from Extreme-ultraviolet Imaging Spectrometer (EIS) on board Hinode combined with imaging sequences ...
  • A Simple Radial Gradient Filter for Batch-Processing of Coronagraph Images 
    Patel, Ritesh; Majumdar, Satabdwa; Pant, Vaibhav; Banerjee, D (Springer, 2022-03)
    Images of the extended solar corona, as observed by different white-light coronagraphs, include the K- and F-corona and suffer from a radial variation in intensity. These images require separation of the two coronal ...
  • Solar polarization: proceedings of an international workshop held in St. Petersburg, Russia, 8–12 May, 1995 
    Stenflo, J. O (editor); Nagendra, K. N (editor) (Kluwer Academic Publishers, 1996)
    Much progress has been made in recent years in understanding the complex physics of polarized radiation in the sun and stars. This physics includes vector radiative transfer and spectral line formation in the presence of ...
  • Spectroscopic Observation of Coronal Waves 
    Sakurai, T; Ichimoto, K; Raju, K. P; Singh, J (Springer, 2002-10)
    A time sequence over 80 min of coronal green-line spectra was obtained with a corona- graph at the Norikura Solar Observatory. Doppler velocities, line intensities, and line widths were derived through fitting a single ...
  • A Spectroscopic Study of the Solar Corona from Norikura and SOHO data 
    Raju, K. P; Sakurai, T; Ichimoto, K (International Astronomical Union, 2001)
    We report the results from a spectroscopic study of the solar corona, wherein, we examine some of the current problems in the corona, such as the plume-interplume differences in coronal holes, coronal loops in active regions ...
  • Studies on the E2-transition in CoXVII 
    Ray, H (EDP Sciences, 2002-09)
    The spectrum of the solar corona, plasma spectra, astrophysical objects and fusion devices exhibit forbidden lines in alkali-like ions. Ions belonging to the iron group are particularly important in this respect. More ...
  • Triggering an eruptive flare by emerging flux in a solar active-region complex 
    Louis, R. E; Kliem, B; Ravindra, B; Chintzoglou, G (Springer, 2015-12)
    A flare and fast coronal mass ejection originated between solar active regions NOAA 11514 and 11515 on 2012 July 1 (SOL2012-07-01) in response to flux emergence in front of the leading sunspot of the trailing region 11515. ...
  • Variation of line widths in coronal hole off-limb regions: evidence for long-term structuring in plumes 
    O'Shea, E; Banerjee, D; Doyle, G (European Space Agency, 2004-12)
    A detailed analysis of an off-limb polar region observed over a number of weeks by the Coronal Diagnostic Spectrometer (CDS), on board the SOHO spacecraft, is presented. Form a measurement of a number of coronal lines we ...

Search DSpace


Browse

My Account