2022MNRAS.513.2862R

Query : 2022MNRAS.513.2862R

2022MNRAS.513.2862R - Mon. Not. R. Astron. Soc., 513, 2862-2868 (2022/June-3)

Rings and arcs around evolved stars - III. Physical conditions of the ring-like structures in the planetary nebula IC 4406 revealed by MUSE.

RAMOS-LARIOS G., TOALA J.A., RODRIGUEZ-GONZALEZ J.B., GUERRERO M.A. and GOMEZ-GONZALEZ V.M.A.

Abstract (from CDS):

We present the analysis of Very Large Telescope Multi Unit Spectroscopic Explorer (MUSE) observations of the planetary nebula (PN) IC 4406. MUSE images in key emission lines are used to unveil the presence of at least five ring-like structures north and south of the main nebula of IC 4406. MUSE spectra are extracted from the rings to unambiguously assess for the first time in a PN their physical conditions, electron density (ne), and temperature (Te). The rings are found to have similar Te as the rim of the main nebula, but smaller ne. Ratios between different ionic species suggest that the rings of IC 4406 have a lower ionization state than the main cavity, in contrast to what was suggested for the rings in NGC 6543, the Cat's Eye Nebula.

Abstract Copyright: © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): stars: evolution - stars: winds, outflows - planetary nebulae: general - planetary nebulae: individual: IC 4406

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 IC 4406 PN 14 22 26.1440976888 -44 09 02.185112988   11.5 10.90     ~ 294 1
2 IC 4634 PN 17 01 33.5816774904 -21 49 33.015515916   12.3 11.3     O3If 286 0
3 NGC 6543 PN 17 58 33.4039587288 +66 37 58.750734000   11.09 11.28     [WC] 1197 2
4 V* V1610 Cyg pA* 21 02 18.27 +36 41 37.0           F5Iae 892 1
5 NGC 7009 PN 21 04 10.8155187648 -11 21 48.580157556   12.48 12.07     ~ 1020 1
6 NGC 7027 PN 21 07 01.571952 +42 14 10.47120   10.358 8.831 10.157   ~ 2541 1
7 RAFGL 3068 C* 23 19 12.60744 +17 11 33.1332           C 288 1

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