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Дата индексирования: Mon Oct 1 23:58:08 2012
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Поисковые слова: ngc 891

Atlas and list of identified lines

The atlas is presented as a series of relationships between the residual intensity and the laboratory wavelength, which cover the spectrum of MWC 560 from 4780 Å to 6580 Å. A minor loss of information is due to the overestimation of the scattered light in the region of $\rm H_{\beta}$ and to the broad emission lines $\rm H_{\beta}$ and $\rm H_{\alpha}$. On the diagrams are shown the blue-shifted absorption lines and the interstellar diffusion bands. The telluric lines of $\rm H_2O$ and $\rm O_2$ are marked with dots, while the heads of molecular bands and individual absorption lines of the M giant are labeled with angles and vertical bars, respectively.

In Table 1 are given only emission lines. Questionable features and the lines that fell within the gaps are not included in it, question-marks are for unreliable identification. The wavelengths are rounded-off to hundredths of an Å, in unidentified lines they are given with one decimal digit. The horizontal straight lines demarcate single lines or groups of close lines that merge into blends.

The authors thank V.E. Panchuk for help in observations, V.T. Doroshenko for new photometric data made available, and T. Tomov for fruitful discussions.

The work was done under the support of the Russian foundation of basic research (project 95-07-19306 Creation of an information-analytical system ``Stellar spectra'').