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24MgH+ in the solar photospheric spectrum
Authors:P D Singh
Institution:(1) Department of Astronomy, Institute of Astronomy and Geophysics, University of São Paulo, São Paulo, Brazil
Abstract:The24MgH+ (A 1Sgr+X 1Sgr+) molecular lines have been identified in the photospheric spectrum. The rotational excitation temperature determined from the analysis of molecular line intensities of24MgH+ is found to be of the order of 4850 K which corresponds to the photospheric temperature of the Sun. The CNDO/2 dipole moments of24MgH+ for internuclear distance range: (1.3–2.1) Å in theX 1Sgr+ state can be approximated byM(R)=4.92+1.33R. Estimations for the spontaneous emission Einstein coefficients (A vprime vPrime ) and the absorption oscillator strengths (f vprime vPrime ) for the (1, 0), (2, 0), and (2, 1) transitions in theX 1Sgr+ state of the24MgH+ ion are also made.Work partially supported by the CNPq, Brasilia under contract number 30.4076/77.
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