Evolved star water maser cloud size determined by star size

Free Access

Issue		A&A Volume 546, October 2012


Article Number		A16
Number of page(s)		75
Section		Interstellar and circumstellar matter
DOI		https://doi.org/10.1051/0004-6361/201219514
Published online		27 September 2012

Online material

Appendix A: Contour plots of H₂O maser emission

These plots show channel-averaged emission (see Sect. 2 for the original channel widths used). The restoring beams are shown in the first or last panel; in most cases these are slightly larger than the beams used in the full-resolution images for analysis (Table 2). The lowest contour is at the average 3σ_rms for the cube but bright channels have been blanked where they are dynamic-range limited. Plots for VX Sgr were published by M03.

The image cubes for these plots were made by averaging 5 to 10 channels (~1 km s^-1) and thus, due to frequency dilution, the peaks are often lower than those measured at full resolution. The same contour levels were used for all epochs of each source, at ~3–5σ_rms, to aid comparison. Negative contours are not shown to avoid crowding the plots; these generally do not exceed the first positive but blanking has been applied to dynamic-range limited channels where indicated (identified by broken contours).

	Fig. A.1 S Per 1994, contours at (1, 4, 16, 64, 256) × 20 mJy beam^-1, blanking applied to bright channels.
Open with DEXTER

	Fig. A.2 S Per 1999, contours at (1, 4, 16, 64, 256) × 20 mJy beam^-1.
Open with DEXTER

	Fig. A.3 U Ori 1994, contours at (1, 4, 16, 64, 256) × 50 mJy beam^-1.
Open with DEXTER

	Fig. A.4 U Ori 1999, contours at (1, 4, 16, 64, 256) × 50 mJy beam^-1, blanking applied to bright channels.
Open with DEXTER

	Fig. A.5 U Ori 2000, contours at (1, 4, 16, 64, 256) × 50 mJy beam^-1.
Open with DEXTER

	Fig. A.6 U Ori 2001, contours at (1, 4, 16, 64, 256) × 50 mJy beam^-1.
Open with DEXTER

	Fig. A.7 U Her 1994, contours at (1, 4, 16, 64, 256) × 60 mJy beam^-1, blanking applied to bright channels.
Open with DEXTER

	Fig. A.8 U Her 2001, contours at (1, 4, 16, 64, 256) × 60 mJy beam^-1.
Open with DEXTER

	Fig. A.9 U Her 2011, contours at (1, 4, 16, 64, 256) × 60 mJy beam^-1.
Open with DEXTER

	Fig. A.10 IK Tau 1994, contours at (1, 4, 16, 64, 256) × 40 mJy beam^-1.
Open with DEXTER

	Fig. A.11 IK Tau 2000, contours at (1, 4, 16, 64, 256) × 40 mJy beam^-1.
Open with DEXTER

	Fig. A.12 IK Tau 2001, contours at (1, 4, 16, 64, 256) × 40 mJy beam^-1.
Open with DEXTER

	Fig. A.13 RT Vir 1994, contours at (1, 4, 16, 64, 256) × 90 mJy beam^-1.
Open with DEXTER

	Fig. A.14 RT Vir 960405, contours at (1, 4, 16, 64, 256) × 90 mJy beam^-1.
Open with DEXTER

	Fig. A.15 RT Vir 960421, contours at (1, 4, 16, 64, 256) × 90 mJy beam^-1, blanking applied to bright channels.
Open with DEXTER

	Fig. A.16 RT Vir 960429, contours at (1, 4, 16, 64, 256) × 90 mJy beam^-1, blanking applied to bright channels.
Open with DEXTER

	Fig. A.17 RT Vir 960515, contours at (1, 4, 16, 64, 256) × 90 mJy beam^-1, blanking applied to bright channels.
Open with DEXTER

	Fig. A.18 RT Vir 960524, contours at (1, 4, 16, 64, 256) × 90 mJy beam^-1, blanking applied to bright channels.
Open with DEXTER

	Fig. A.19 RT Vir 960612, contours at (1, 4, 16, 64, 256) × 90 mJy beam^-1, blanking applied to bright channels.
Open with DEXTER

	Fig. A.20 W Hya 1999, contours at (1, 4, 16, 64, 256) × 200 mJy beam^-1.
Open with DEXTER

	Fig. A.21 W Hya 2000, contours at (1, 4, 16, 64, 256) × 200 mJy beam^-1.
Open with DEXTER

	Fig. A.22 W Hya 2001, contours at (1, 4, 16, 64, 256) × 200 mJy beam^-1.
Open with DEXTER

	Fig. A.23 W Hya 2002, contours at (1, 4, 16, 64, 256) × 200 mJy beam^-1.
Open with DEXTER

Appendix B: Measured maser feature parameters

These tables list the maser feature parameters. Lists for VX Sgr were published by M03.

Table B.1

S Per 1994 22-GHz H₂O maser feature parameters. ΔV is the full velocity extent of the feature and ΔV_1/2 is the FWHM, set to zero if a Gaussian spectral profile could not be fitted at ≥ 3σ. x, y and a are the Cartesian and radial (in the plane of the sky) offsets from the centre of expansion. l is the angular extent of the feature and I is its peak.

Table B.2

S Per 1999 22-GHz H₂O maser feature parameters.

Table B.3

U Ori 1994 22-GHz H₂O maser feature parameters.

Table B.4

U Ori 1999 22-GHz H₂O maser feature parameters.

Table B.5

U Ori 2000 22-GHz H₂O maser feature parameters.

Table B.6

U Ori 2001 22-GHz H₂O maser feature parameters.

Table B.7

U Her 1994 22-GHz H₂O maser feature parameters.

Table B.8

U Her 2000 22-GHz H₂O maser feature parameters.

Table B.9

U Her 2001 22-GHz H₂O maser feature parameters.

Table B.10

IK Tau 1994 22-GHz H₂O maser feature parameters.

Table B.11

IK Tau 2000 22-GHz H₂O maser feature parameters.

Table B.12

IK Tau 2001 22-GHz H₂O maser feature parameters.

Table B.13

RT Vir 1994 22-GHz H₂O maser feature parameters.

Table B.14

RT Vir 19960405 22-GHz H₂O maser feature parameters.

Table B.15

RT Vir 19960421 22-GHz H₂O maser feature parameters.

Table B.16

RT Vir 19960429 22-GHz H₂O maser feature parameters.

Table B.17

RT Vir 19960515 22-GHz H₂O maser feature parameters.

Table B.18

RT Vir 19960524 22-GHz H₂O maser feature parameters.

Table B.19

RT Vir 19960612 22-GHz H₂O maser feature parameters.

Table B.20

W Hya 1999 22-GHz H₂O maser feature parameters.

Table B.21

W Hya 2000 22-GHz H₂O maser feature parameters.

Table B.22

W Hya 2001 22-GHz H₂O maser feature parameters.

Table B.23

W Hya 2002 22-GHz H₂O maser feature parameters.

© ESO, 2012

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.

Online material

Appendix A: Contour plots of H2O maser emission

Appendix B: Measured maser feature parameters

Appendix A: Contour plots of H₂O maser emission