Abstract Details
| Name: Amar Deo Chandra Affiliation: Center of Excellence in Space Sciences India(CESSI) Conference ID: ASI2017_1176 Title : Development of a High Resolution Imaging Spectrometer for exploring the Sun's corona Authors and Co-Authors : Ayan Banerjee, Department of Physical Sciences, IISER Kolkata Dibyendu Nandy, Department of Physical Sciences, IISER Kolkata and Center of Excellence in Space Sciences India(CESSI) Abstract Type : Poster Abstract Category : Instrumentation and Techniques Abstract : The solar corona is the outermost layer of the Sun and is very hot, having temperatures on the order of million degrees Kelvin. Coronal heating is believed to occur due to reconnection mediated nanoflares in the corona (Parker, 1983, 1988) or due to the passage of waves, which dissipate energy in this layer (Schatzman,1949). Many energetic manifestations such as flares and coronal mass ejections (CMEs) originate in the corona. Earth directed CMEs can adversely affect the conditions in our vicnity (space weather) and cause power grid failures, damage satellites and cause communication blackouts. The corona is very faint compared to the photosphere, which necessiates development of very sensitive spectrometers to resolve the feeble emission lines emanating from this tenuous layer. We will discuss the development of a novel imaging spectrometer, which is one of the modules of the Solar Hyperspectral Imaging Polarimeter (SHIP) instrument being developed at CESSI. The SHIP instrument is envisaged to work across 600-1100 nm waveband and perform simultaneous imaging, spectroscopy and polarimetry of the solar corona. To our knowledge, no instrument is yet operational in the world which can routinely perform these observations simultaneously. We will discuss potential solar coronal diagnostics which can be performed using this high resolution imaging spectrometer. |