| Name | B.R.Prasad |
| Affiliation | Indian Institute of Astrophysics, Bangalore |
| Title | Visible Emission Line Coronagraph on AdityaL1 – India’s First Space Solar Mission |
| Authors | B.R.Prasad |
| Abstract | AdityaL1 is India’s first space solar mission with a suite of seven payloads to study the solar dynamics. Visible Emission Line Coronagraph (VELC) on Aditya(L1) is an internally occulted solar coronagraph with simultaneous imaging, spectroscopy and spectro-polarimetry channels close to the solar limb. The primary science goals of this mission are (1) Diagnostics of the coronal and coronal loops plasma (Temperature, Velocity, & Density), (2) Heating of the corona, (3) Development, dynamics & origin of CME's, (4) Studies on the drivers for space weather and (5) Measurement of coronal magnetic fields in the corona (not planned by any mission so far). VELC is designed to image solar corona and multi-slit spectroscopic channels at three emission lines namely 530.3nm, 789.2nm and 1074.7nm. It has dual-beam spectro-polarimetry at 1074.7nm for magnetic field measurements. The stringent demands on design, realization of subsystems, integration and finally the calibration challenges will be discussed in this talk. |
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