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

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

2005A&A...433..579P - Astronomy and Astrophysics, volume 433579-582 (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 (logNe>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.

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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

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Number of rows : 11
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 IRAS 06518-1041 PN 06 54 13.4357342304 -10 45 38.277195336           [WC7/8] 44 1
2 WRAY 16-40 PN 09 18 01.3172902776 -54 39 29.165596128   14 15.00     ~ 81 0
3 WRAY 16-57 PN 09 41 37.4988509057 -49 57 58.588184306   15.233 13.950 15.477   [WC] 64 0
4 Hen 2-57 PN 10 56 03.00 -61 28 07.4           ~ 35 0
5 WRAY 16-147 Sy* 14 11 52.0604355768 -51 26 24.187122024     14.20     ~ 240 1
6 WRAY 16-148 Sy* 14 14 09.4115687736 -63 25 46.319333808   14.293 13.168 13.393   Me 141 1
7 Hen 2-289 Sy* 17 49 48.2107694784 -37 01 27.797630520       13.828   M4/5:e 165 0
8 V* V2929 Sgr LP* 18 18 03.8596746144 -35 52 26.915416644           ~ 5 0
9 WRAY 15-1864 Sy* 18 20 19.0481929688 -26 22 46.224543227   12.5 14.50     M5 24 0
10 IRAS 20124+1154 PN 20 14 51.6019431739 +12 03 53.427482983       16.091   ~ 22 0
11 IC 4997 PN 20 20 08.7557973960 +16 43 53.698933380   11.94 11.15     [WC7/8] 555 0

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