EDP Sciences
Free access
Volume 550, February 2013
Article Number A135
Number of page(s) 18
Section Interstellar and circumstellar matter
DOI http://dx.doi.org/10.1051/0004-6361/201220096
Published online 07 February 2013

Online material

Appendix A: H2CO line parameters

Table A.1

Line parameters.

Appendix B:

B.1. H2CO spectral lines

thumbnail Fig. B.1

Spectra of different positions marked by the numbers in Fig. 2. All transitions from a given position are presented in the same panel but with different offsets along the y-axis on a scale. The Gaussian fits are indicated with green lines, and the central velocities of the components are shown as dashed vertical lines.

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B.2. Velocity channel maps

thumbnail Fig. B.2

Channel maps of the H2CO 303 − 202 emission. Black contour levels for the molecular line emission (on a scale) are from 0.16 K (2σ) in s.pdf of 0.16 K. Velocity channels range from −27 to +81 km s-1in s.pdf of 2 km s-1. The central velocities of the channel maps are shown at the top of each panel. The wedge at the side shows the intensity scale of the line emission. The beam size of 30″ is shown in the bottom-left corner.

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thumbnail Fig. B.3

Same as Fig. B.2 but for the H2CO 322 − 221 emission.

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thumbnail Fig. B.4

Same as Fig. B.2 but for the H2CO 321 − 220 emission.

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© ESO, 2013