2005A&A...433..579P

Query : 2005A&A...433..579P

2005A&A...433..579P - Astronomy and Astrophysics, volume 433, 579-582 (2005/4-2)

The identification of PM1-322 as a new young high-density planetary nebulae.

PEREIRA C.B. and MIRANDA L.F.

Abstract (from CDS):

We report spectroscopic observations of a new planetary nebula PM1-322, which has not yet been identified. This object was found during a northern survey of post-AGB and planetary nebulae candidates selected from Garcia-Lario et al. (1997A&AS..126..479G) and Preite-Martinez (1988A&AS...76..317P). Here we present the main spectroscopic features including a list of the intensities of the identified emission lines. The main spectral characteristic of PM1-322 is the presence of a very strong [O III] λ4363 emission line (I[OIII]4363/Hβ≃120) indicating high electron densities (logN_e>6.0). A comparison with similar objects strongly suggests that PM1-322 is a very young planetary nebula, although the posibility of a symbiotic nature can not be ruled out.

Abstract Copyright: ∼

Journal keyword(s): planetary nebulae: individual: PM1-322

CDS comments: p.580 Hen 2-35 is a probable misprint for Hen 2-25

Simbad objects: 11

Full paper

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Number of rows : 11

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag B	Mag V	Mag R	Sp type	#ref 1850 - 2023	#notes
1	IRAS 06518-1041	PN	06 54 13.4357342304	-10 45 38.277195336				[WC7/8]	33	1
2	WRAY 16-40	PN	09 18 01.3172902776	-54 39 29.165596128	14	15.00		~	77	0
3	WRAY 16-57	PN	09 41 37.4988509057	-49 57 58.588184306	15.233	13.950	15.477	[WC]	59	0
4	Hen 2-57	PN	10 56 03.00	-61 28 07.4				~	34	0
5	WRAY 16-147	Sy*	14 11 52.0604355768	-51 26 24.187122024		14.20		~	230	1
6	WRAY 16-148	Sy*	14 14 09.4115687736	-63 25 46.319333808		14.00		Me	132	1
7	Hen 2-289	Sy*	17 49 48.2107694784	-37 01 27.797630520			13.828	M4/5:e	161	0
8	V* V2929 Sgr	LP*	18 18 03.8596746144	-35 52 26.915416644				~	4	0
9	WRAY 15-1864	Sy*	18 20 19.0481929688	-26 22 46.224543227	12.5	14.50		M5	23	0
10	IRAS 20124+1154	PN	20 14 51.6019431739	+12 03 53.427482983			16.091	~	15	0
11	IC 4997	PN	20 20 08.7557973960	+16 43 53.698933380	11.94	11.15		[WC7/8]	541	0

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