2007A&A...466...75P

Query : 2007A&A...466...75P

2007A&A...466...75P - Astronomy and Astrophysics, volume 46675-82 (2007/4-4)

A catalog of planetary nebula candidates and HII regions in NGC 3109.

PENA M., RICHER M.G. and STASINSKA G.

Abstract (from CDS):

Images obtained with the ESO VLT and FORS1 in [O III] 5007 on- and off-band, as well as r_Gunn filters, are analyzed to search for planetary nebula (PN) candidates. In the continuum-subtracted [O III] 5007 on-band images, a large number of emission-line regions were detected. We describe the criteria employed for distinguishing PN candidates from compact HII regions. The most unambiguous discriminators for the two classes of nebulae are the sizes and properties of the ionizing stars. Based upon these criteria, we have found 20 PN candidates for which we present coordinates, nebular [O III] fluxes, and stellar magnitudes. The cumulative luminosity function for these PNe is discussed. A catalog of HII regions listing coordinates, nebular [O III] fluxes, stellar magnitudes, and other characteristics is also presented. We find that HII regions are rather concentrated towards the disk of the galaxy, while PNe are distributed also above and below this structure, consistent with their belonging to an older stellar population.

Abstract Copyright: ∼

Journal keyword(s): galaxies: individual: NGC 3109 (DDO 236) - ISM: planetary nebulae: general - ISM: HII regions - galaxies: ISM

VizieR on-line data: <Available at CDS (J/A+A/466/75): table1.dat table2.dat images/*>

Nomenclature: Table 1: [PRS2007] PN NN (Nos 1-20). Table 2: [PRS2007] HII NN (Nos 1-40).

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 44

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Number of rows : 44
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 M 32 GiG 00 42 41.82480 +40 51 54.6120 9.51 9.03 8.08     ~ 2236 2
2 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
3 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
4 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1614 2
5 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
6 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
7 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
8 Z 36-12 H2G 10 00 00.8217342072 +05 20 09.533389560 12.77 12.25 11.89 11.71   ~ 569 0
9 [PRS2007] PN 1 PN 10 02 41.57 -26 08 40.7           ~ 1 0
10 [PRS2007] PN 2 PN 10 02 44.70 -26 11 32.4           ~ 1 0
11 [PRS2007] PN 3 PN 10 02 49.15 -26 09 10.1           ~ 3 0
12 [PRS2007] PN 4 PN 10 02 50.06 -26 08 10.0           ~ 2 0
13 [PRS2007] HII 4 HII 10 02 50.66 -26 09 35.9           ~ 3 0
14 [PRS2007] PN 5 PN 10 02 51.60 -26 10 19.7           ~ 1 0
15 [PRS2007] HII 7 HII 10 02 52.46 -26 09 24.6           ~ 2 0
16 [PRS2007] PN 6 PN 10 02 57.20 -26 08 55.8           ~ 1 0
17 [PRS2007] PN 7 PN 10 02 58.2 -26 08 45           ~ 5 0
18 [PRS2007] HII 11 HII 10 02 59.16 -26 09 17.5           ~ 3 0
19 [PRS2007] PN 8 PN 10 02 59.52 -26 08 13.9           ~ 1 0
20 [PRS2007] HII 15 HII 10 03 01.34 -26 09 27.2           ~ 3 0
21 [PRS2007] HII 17 HII 10 03 01.97 -26 08 37.5           ~ 2 0
22 [PRS2007] PN 9 PN 10 03 02.66 -26 08 50.3           ~ 2 0
23 [PRS2007] PN 10 PN 10 03 03.9 -26 09 41           ~ 5 0
24 [PRS2007] HII 20 HII 10 03 04.54 -26 09 20.7           ~ 2 0
25 [PRS2007] PN 11 PN 10 03 05.04 -26 10 54.2           ~ 3 0
26 NGC 3109 AG? 10 03 06.877 -26 09 34.46 11.10 10.42 10.04 9.91   ~ 825 2
27 [PRS2007] PN 12 PN 10 03 07.99 -26 07 57.8           ~ 1 0
28 [PRS2007] PN 13 PN 10 03 08.52 -26 09 07.7           ~ 3 0
29 [PRS2007] PN 14 PN 10 03 10.34 -26 08 06.1           ~ 2 0
30 [PRS2007] PN 15 PN 10 03 13.32 -26 10 20.7           ~ 1 0
31 [PRS2007] HII 30 HII 10 03 17.71 -26 09 59.4           ~ 3 0
32 [PRS2007] PN 16 PN 10 03 18.67 -26 09 58.8           ~ 2 0
33 [PRS2007] PN 17 PN 10 03 18.74 -26 10 05.4           ~ 3 0
34 [PRS2007] PN 18 PN 10 03 20.74 -26 09 00.2           ~ 1 0
35 [PRS2007] PN 19 PN 10 03 21.22 -26 11 20.9           ~ 1 0
36 [PRS2007] HII 31 HII 10 03 22.00 -26 08 53.4           ~ 1 0
37 [PRS2007] HII 32 HII 10 03 22.92 -26 10 27.4           ~ 2 0
38 [PRS2007] PN 20 PN 10 03 25.51 -26 09 07.2           ~ 2 0
39 [PRS2007] HII 34 HII 10 03 25.80 -26 09 08.9           ~ 2 0
40 [PRS2007] HII 37 HII 10 03 27.96 -26 09 19.9           ~ 3 0
41 [PRS2007] HII 40 HII 10 03 28.51 -26 09 21.8           ~ 3 0
42 NAME Antlia Dwarf Galaxy G 10 04 03.9 -27 20 01 16.73 15.69 15.17 15.00   ~ 221 1
43 MCG-01-26-030 H2G 10 11 00.5 -04 41 30 12.48 12.13 11.93 11.78   ~ 789 2
44 NAME Local Group GrG ~ ~           ~ 9325 0

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