An Optical Recombination Line Abundance Survey for Galactic Bulge Planetary Nebulae

2006 ◽  
pp. 194-195
Author(s):  
W. Wang ◽  
X.-W. Liu ◽  
Y. Zhang ◽  
Y. Liu
Keyword(s):  
Planetary Nebulae ◽  
Galactic Bulge ◽  
Recombination Line

scholarly journals The mid-infrared colours of Galactic bulge, disc and Magellanic planetary nebulae

2009 ◽  
Vol 396 (4) ◽  
pp. 1915-1928 ◽  
Author(s):  
J. P. Phillips ◽  
G. Ramos-Larios
Keyword(s):  
Planetary Nebulae ◽  
Galactic Bulge ◽  
Mid Infrared

scholarly journals Planetary nebulae in the inner Milky Way

2009 ◽  
Vol 5 (S265) ◽  
pp. 354-355
Author(s):  
Oscar Cavichia ◽  
Roberto D. D. Costa ◽  
Walter J. Maciel
Keyword(s):  
Statistical Analysis ◽  
Milky Way ◽  
Planetary Nebulae ◽  
Galactic Bulge ◽  
Intermediate Mass ◽  
Disk Interface ◽  
The Galaxy ◽  
Outer Border ◽  
Good Agreement

AbstractNew abundances of planetary nebulae located towards the bulge of the Galaxy are derived based on observations made at LNA (Brazil). We present accurate abundances of the elements He, N, S, O, Ar, and Ne for 56 PNe located towards the galactic bulge. The data shows a good agreement with other results in the literature, in the sense that the distribution of the abundances is similar to those works. From the statistical analysis performed, we can suggest a bulge-disk interface at 2.2 kpc for the intermediate mass population, marking therefore the outer border of the bulge and inner border of the disk.

The Population of Planetary Nebulae in the Galactic Bulge

1992 ◽  
pp. 492-492 ◽  
Author(s):  
G. Stasinska ◽  
A. Acker ◽  
A. Fresneau ◽  
J. F. Gameiro ◽  
J. Köppen ◽  
...  
Keyword(s):  
Planetary Nebulae ◽  
Galactic Bulge

The UV and Optical Reddening Law to the Galactic Bulge and CNO Abundances in Bulge Planetary Nebulae

1993 ◽  
pp. 337-338 ◽  
Author(s):  
N. A. Walton ◽  
M. J. Barlow ◽  
R. E. S. Clegg
Keyword(s):  
Planetary Nebulae ◽  
Galactic Bulge ◽  
Cno Abundances

Planetary Nebulae and the Galactic Bulge

1989 ◽  
pp. 167-167
Author(s):  
M. W. Feast ◽  
T. D. Kinman ◽  
B. S. Lasker
Keyword(s):  
Planetary Nebulae ◽  
Galactic Bulge

Recombination Line versus Forbidden Line Abundances in Planetary Nebulae

2005 ◽  
Vol 157 (2) ◽  
pp. 371-395 ◽  
Author(s):  
Mark Robertson‐Tessi ◽  
Donald R. Garnett
Keyword(s):  
Planetary Nebulae ◽  
Recombination Line

scholarly journals Chemical Abundances in Galactic Bulge Pn

1993 ◽  
Vol 155 ◽  
pp. 581-581 ◽  
Author(s):  
N.A. Walton ◽  
M.J. Barlow ◽  
R.E.S. Clegg
Keyword(s):  
Galactic Disk ◽  
Planetary Nebulae ◽  
Solar Neighbourhood ◽  
Galactic Bulge ◽  
Low Resolution ◽  
Chemical Abundances ◽  
The Mean ◽  
Optical Spectrophotometry ◽  
High Metallicity

We present abundance determinations, in particular of carbon, and C/O ratios, for 11 Galactic bulge planetary nebulae (PN) based on our low resolution UV data from IUE observations and optical spectrophotometry from the Anglo-Australian Telescope. We compare the observed abundances with those predicted by dredge-up theory for the high metallicity Galactic bulge. The sample abundances are also contrasted with the abundances found for PN in the Galactic disk. The mean C/O ratio for the bulge PN is significantly lower than that found for Galactic disk PN. Further, we present an abundance analysis of the very metal-poor bulge PN M2-29. From an analysis of the differential extinction found from the observed ratios of the He ii 1640,4686Å lines, we find that the ultraviolet reddening law towards the bulge is steeper than in the solar neighbourhood.

A New Population of Galactic Bulge Planetary Nebulae

2017 ◽  
Vol 129 (976) ◽  
pp. 067002
Author(s):  
Travis N. Stenborg
Keyword(s):  
Planetary Nebulae ◽  
Galactic Bulge

scholarly journals Carbon chemistry in Galactic bulge planetary nebulae

2011 ◽  
Vol 414 (2) ◽  
pp. 1667-1678 ◽  
Author(s):  
L. Guzman-Ramirez ◽  
A. A. Zijlstra ◽  
R. NíChuimín ◽  
K. Gesicki ◽  
E. Lagadec ◽  
...  
Keyword(s):  
Planetary Nebulae ◽  
Galactic Bulge ◽  
Carbon Chemistry

scholarly journals Determination of Element Abundances in Planetary Nebulae from Recombination Line Spectra

1993 ◽  
Vol 155 ◽  
pp. 573-573
Author(s):  
A.A. Nikitin ◽  
A.F. Kholtygin ◽  
A.A. Sapar ◽  
T. Kh. Feklistova
Keyword(s):  
Planetary Nebulae ◽  
Recombination Line ◽  
Element Abundances

Carbon, nitrogen and oxygen abundances have been found from the recombination lines for 63 planetary nebulae.

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