2017MNRAS.468..272C


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.21CEST16:08:16

2017MNRAS.468..272C - Mon. Not. R. Astron. Soc., 468, 272-290 (2017/June-2)

The population of planetary nebulae near the Galactic Centre: chemical abundances.

CAVICHIA O., COSTA R.D.D., MACIEL W.J. and MOLLA M.

Abstract (from CDS):

Planetary nebulae (PNe) constitute an important tool to study the chemical evolution of the Milky Way and other galaxies, probing the nucleosynthesis processes, abundance gradients and the chemical enrichment of the interstellar medium. In particular, Galactic bulge PNe (GBPNe) have been extensively used in the literature to study the chemical properties of this Galactic structure. However, the presently available GBPN chemical composition studies are strongly biased, since they were focused on brighter objects, predominantly located in Galactic regions of low interstellar reddening. In this work, we report physical parameters and abundances derived for a sample of 17 high-extinction PNe located in the inner 2° of the Galactic bulge, based on low-dispersion spectroscopy secured at the Southern Astrophysical Research telescope using the Goodman spectrograph. The new data allow us to extend our data base including faint objects, providing chemical compositions for PNe located in this region of the bulge and an estimation for the masses of their progenitors to explore the chemical enrichment history of the central region of the Galactic bulge. The results show that there is an enhancement in the N/O abundance ratio in the Galactic Centre PNe compared with PNe located in the outer regions of the Galactic bulge. This may indicate recent episodes of star formation occurring near the Galactic Centre.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): Galaxy: abundances - Galaxy: bulge - Galaxy: disc - Galaxy: evolution - Galaxy: formation - Galaxy: formation

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 26

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Number of rows : 26

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 CD-34 241 * 00 41 46.9205477795 -33 39 08.431504848   11.696 11.208     F 7 0
2 CD-32 9927 * 14 11 46.3240134300 -33 03 14.379335532   10.793 10.444 10.12 10.106 A4 85 0
3 PN G357.7+01.4 PN 17 34 46.6 -30 04 21           ~ 8 1
4 PN G359.9+01.8 PN 17 38 11.8 -28 00 07           ~ 5 1
5 PN G000.5+01.9 PN 17 39 31.219 -27 27 46.77           ~ 17 0
6 PN G000.2+01.7 PN 17 39 39.253 -27 47 23.56           ~ 15 0
7 OHPN 6 PN 17 40 23.07240 -27 49 11.9928           ~ 12 0
8 PN G000.9+01.8 PN 17 40 50.7 -27 08 48           ~ 6 1
9 PN G000.4+01.1 PN 17 42 25.108 -27 55 35.95           ~ 11 0
10 PN G001.0+01.3 PN 17 42 49.96 -27 21 19.7           ~ 9 0
11 JaSt 46 PN 17 43 30.37128 -26 47 32.6616           ~ 10 0
12 PN G001.7+01.3 PN 17 44 37.23 -26 47 25.5           ~ 11 0
13 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11758 0
14 JaSt 64 PN 17 48 56.0197764304 -31 06 42.789724148       18.1   ~ 32 0
15 PN G358.9-01.5 PN 17 49 19.95 -30 36 06.2           ~ 10 0
16 PN G359.5-01.2 PN 17 49 22.10 -29 59 27.0           ~ 10 0
17 PN G359.5-01.3 PN 17 49 49.1 -30 03 03           ~ 5 0
18 PN G000.6-01.0 PN 17 51 11.504 -28 56 26.16           ~ 13 0
19 IRAS 17486-2930 Mi* 17 51 53.5582361549 -29 30 53.543917966     18.938   15.456 ~ 16 0
20 IRAS 17526-2753 PN 17 55 46.299 -27 53 38.29           ~ 6 0
21 PN G004.3-01.4 PN 18 01 18.9 -25 53 21           ~ 10 1
22 CD-44 12736 PM* 18 36 25.9487430436 -44 18 36.919462094   10.83 10.22     G0 195 0
23 LP 877-23 PM* 22 52 41.0353308036 -20 35 32.995847106   13.02 11.90     ~ 104 0
24 NAME Local Group GrG ~ ~           ~ 7071 0
25 NAME Galactic Bulge reg ~ ~           ~ 3457 0
26 NAME Galactic Bar reg ~ ~           ~ 918 0

    Equat.    Gal    SGal    Ecl

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2020.10.21-16:08:16

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