Free Access
Volume 554, June 2013
Article Number A143
Number of page(s) 26
Section Interstellar and circumstellar matter
Published online 18 June 2013

Online material

thumbnail Fig. 1

Line identification of MWC 342. Two diffuse interstellar bands (DIB) identified by MC99 was also seen.

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thumbnail Fig. 5

Relative flux of the Hα red peak.

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thumbnail Fig. 6

Relative flux of the Hα violet peak (asterisks). The circles denote the value for the bump, if it is present.

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thumbnail Fig. 11

Hα width at the relative height 0.1 (0 – continuum; 1 – Hα line intensity). The error bars are in the size of the symbols.

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thumbnail Fig. 13

Radial velocity of the Hα line centre in the wings.

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thumbnail Fig. 14

Variations of He i 6678 Å  line profile during three nights in July 2005, April 2007, and two nights in September 2009.

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thumbnail Fig. 18

Equivalent width of metal lines.

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thumbnail Fig. 20

Radial velocity of [O i]. The line at λ = 6300 Å  (upper panel) and 6364 Å  (bottom panel).

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thumbnail Fig. 22

All the spectra from the Hα region. The spectrum showing the inverse P Cygni profile of the He i 6678 Å  is displayed by the green line. The details of the Hα wings and He i 6678 Å  are shown on the top of the figure.

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thumbnail Fig. 24

Ratio of the equivalent width of metal lines and equivalent width of Hα.

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Appendix A: List of observations and table of measurements.

Table A.1

List of observations and measured values of the Hα line.

Table A.2

List of observations and measured values of equivalent width of iron lines.

Table A.3

List of observations and measured values of oxygen and silicon lines.

© ESO, 2013

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