Identification of CrH and CrD Molecular Lines in the Sunspot Umbral Spectrum
High-resolution Fourier transform spectrometer sunspot umbral spectra obtained at the National Solar Observatory/Kitt Peak were used to identify molecular rotational lines arising from the infrared band systems of CrH and CrD molecules. Measurement of the equivalent width used the Gaussian-profile a...
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| Veröffentlicht in: | Solar physics 2009-07, Vol.257 (2), p.261-269 |
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| container_title | Solar physics |
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| creator | Viswanathan, B. Shanmugavel, R. Bagare, S. P. Rajamanickam, N. Sriramachandran, P. |
| description | High-resolution Fourier transform spectrometer sunspot umbral spectra obtained at the National Solar Observatory/Kitt Peak were used to identify molecular rotational lines arising from the infrared band systems of CrH and CrD molecules. Measurement of the equivalent width used the Gaussian-profile approximation method, which is suitable especially for faint lines. Equivalent widths are measured for an adequate number of best lines of the A – X (0,0) band of CrH and the A – X (0,0;1,0) bands of CrD and, thereby, the effective rotational temperatures are estimated. |
| doi_str_mv | 10.1007/s11207-009-9374-1 |
| format | Article |
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P.</au><au>Rajamanickam, N.</au><au>Sriramachandran, P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Identification of CrH and CrD Molecular Lines in the Sunspot Umbral Spectrum</atitle><jtitle>Solar physics</jtitle><stitle>Sol Phys</stitle><date>2009-07-01</date><risdate>2009</risdate><volume>257</volume><issue>2</issue><spage>261</spage><epage>269</epage><pages>261-269</pages><issn>0038-0938</issn><eissn>1573-093X</eissn><abstract>High-resolution Fourier transform spectrometer sunspot umbral spectra obtained at the National Solar Observatory/Kitt Peak were used to identify molecular rotational lines arising from the infrared band systems of CrH and CrD molecules. Measurement of the equivalent width used the Gaussian-profile approximation method, which is suitable especially for faint lines. 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| language | eng |
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| source | SpringerLink Journals - AutoHoldings |
| subjects | Approximation method Astrophysics Astrophysics and Astroparticles Atmospheric Sciences Fourier transforms Physics Physics and Astronomy Solar physics Space Exploration and Astronautics Space Sciences (including Extraterrestrial Physics Sunspots Temperature |
| title | Identification of CrH and CrD Molecular Lines in the Sunspot Umbral Spectrum |
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