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http://hdl.handle.net/2248/5311
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DC Field | Value | Language |
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dc.contributor.author | Kameswara Rao, N | - |
dc.contributor.author | Sriram, S | - |
dc.contributor.author | Gabriel, F | - |
dc.contributor.author | Prasad, B. R | - |
dc.contributor.author | Samson, J. P. A | - |
dc.contributor.author | Jayakumar, K | - |
dc.contributor.author | Srinivasan, R | - |
dc.contributor.author | Mahesh, P. K | - |
dc.contributor.author | Giridhar, S | - |
dc.date.accessioned | 2011-01-21T10:06:44Z | - |
dc.date.available | 2011-01-21T10:06:44Z | - |
dc.date.issued | 2004-12 | - |
dc.identifier.citation | Asian Journal of Physics, Vol. 13, No. 3&4, pp. 267-276 | en |
dc.identifier.uri | http://hdl.handle.net/2248/5311 | - |
dc.description.abstract | The optical design and performance of high resolution fiber-fed echelle spectrometer for the 2.34 meter Vainu Bappu Telescope (VBT) is described. An optical fiber of core 100 J-Lm and length 45 meter is used to link the spectrometer with the telescope. The instrument provides a resolving power of 72,000 (4 Km/s) with a 60 J-Lm slit and provides continuous coverage with gaps for ). < 1 J-Lm. The spectrum is recorded on a thinned back-illuminated Marconi 2048 x 4096, 15 J-Lm square pixel, charge coupled device (CCD) detector. The wavelength coverage in a single order varies from roughly 35Aat ,\ = 4050A(range 4030A- 4065A) to 70A(range 8465A- 8535A).The present overall efficiency of the spectrometer at 6000Ais about 10%. The operation of the spectrometer and object acquisition and guiding at the telescope end is described. Some of the observed spectra from VBT are also illustrated. | en |
dc.language.iso | en | en |
dc.publisher | Anita Publications | en |
dc.rights | © Anita Publications | en |
dc.title | Fiber-fed echelle spectrometer of the 2.34 meter Vainu Bappu Telescope | en |
dc.type | Article | en |
Appears in Collections: | IIAP Publications |
Files in This Item:
File | Description | Size | Format | |
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Fiber-fed echelle spectrometer of the 2.34 meter Vainu Bappu Telescope | 262.41 kB | Adobe PDF | ![]() View/Open |
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