Resolved line profiles of PNe in NGC6822.

Flores-Duran, S.; Peña, M.; Hernández-Martínez, L.; García-Rojas, J.; Ruiz, M. T.
Bibliographical reference

Asymmetrical Planetary Nebulae VI conference, Proceedings of the conference held 4-8 November, 2013. Edited by C. Morisset, G. Delgado-Inglada and S. Torres-Peimbert. Online at http://www.astroscu.unam.mx/apn6/PROCEEDINGS/, id. #22

Advertised on:
4
2014
Number of authors
5
IAC number of authors
1
Citations
0
Refereed citations
0
Description
"Using high resolution spectroscopic data obtained with Magellan Inamori Kyocera Echelle (MIKE) at the Magellan telescope at Las Campanas Observatory it was possible to resolve the emission line profiles of [OIII] 5007, Ha and [NII] 6583 in two planetary nebulae belonging to the Local Group galaxy NGC 6822 (Flores-Durán et al. submitted). The two PNe, called PN4 and PN7 were identified after Leisy et al. (2005, A&A, x436, 437). In the case of PN4, it presents wide lines that show a structure with three components. The [NII] 6583 line profile clearly shows a central component surrounded by what appears to be a shell with an expantion velocity of 25 km s-1. For PN7, the [OIII] emission lines present two very close components differing in velocity by about 15 km s‑1 and, in the [N II] 6583 profile a faint very-wide component is apparent. This latter component represents a sort of bipolar outflow at high velocities (about 140 km s‑1) as the case of the galactic M1-32, M3-15 and others (Medina et al. 2006, RMAA, 42, 53; Akras & López 2012, MNRAS, 425, 2197; Rechy-García et al., this meeting)."