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DC Field | Value | Language |
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dc.contributor.author | Sriramachandran, P | - |
dc.contributor.author | Bagare, S. P | - |
dc.contributor.author | Rajamanickam, N | - |
dc.contributor.author | Balachandra Kumar, K | - |
dc.date.accessioned | 2009-01-09T14:01:40Z | - |
dc.date.available | 2009-01-09T14:01:40Z | - |
dc.date.issued | 2008-11 | - |
dc.identifier.citation | Solar Physics, Vol. 252, No. 2, pp. 267 - 281 | en |
dc.identifier.issn | 0038-0938 | - |
dc.identifier.uri | http://hdl.handle.net/2248/4254 | - |
dc.description | Restricted Access | en |
dc.description | The original publication is available at springerlink.com | - |
dc.description.abstract | High-resolution Fourier Transform Spectrometer sunspot umbral spectra of the National Solar Observatory/National Optical Astronomy Observatory at Kitt Peak were used to detect rotational lines from 19 electronic transition bands of the molecules LaO, ScO and VO, in the wavenumber range of 11775 to 20600 cm−1. The presence of lines from the following transitions is confirmed: A 2 Π r1/2 – X 2 Σ +(0, 0; 0, 1), A 2 Π r3/2 – X 2 Σ +(1, 0), B 2 Σ + – X 2 Σ +(0, 0; 0, 1; 1, 0) and C 2 Π r1/2 – A′2Δ r3/2(0, 0; 1, 1) of LaO; A 2 Π r3/2 – X 2 Σ +(0, 0), A 2 Π r1/2 – X 2 Σ +(0, 0) and B 2 Σ + – X 2 Σ +(0, 0) of ScO; and C 4 Σ − – X 4 Σ −(0, 1; 1, 0; 0, 2) and (2, 0) of VO. However, the presence of A 2 Π r3/2 – X 2 Σ +(0, 0) and C 2 Π r3/2 – A′2Δ r5/2(0, 0; 1, 1) of LaO and C 4 Σ − – X 4 Σ −(0, 0) of VO are found to be doubtful because the lines are very weak, and detections are difficult owing to heavy blending by strong rotational lines of other molecules. Equivalent widths are measured for well-resolved lines and, thereby, the effective rotational temperatures are estimated for the systems for which the presence is confirmed. | en |
dc.language.iso | en | en |
dc.publisher | Springer | en |
dc.relation.uri | http://www.springerlink.com/content/dv571g25378p34v2/ | en |
dc.relation.uri | The original publication is available at springerlink.com | - |
dc.rights | © Springer | en |
dc.subject | Sunspots | en |
dc.subject | Umbral spectra | en |
dc.subject | Metal oxides | en |
dc.subject | Spectroscopic data | en |
dc.subject | Rotational temperature | en |
dc.title | Presence of LaO, Presence of LaO, ScO and VO molecular lines in sunspot umbral spectra | en |
dc.type | Article | en |
Appears in Collections: | IIAP Publications |
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File | Description | Size | Format | |
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Presence of LaO Restricted Access | Restricted Access | 515.14 kB | Adobe PDF | View/Open Request a copy |
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