scholarly journals Thick Disk Planetary Nebulae

2006 ◽  
Vol 2 (S234) ◽  
pp. 363
Author(s):  
J.K. Baliga ◽  
D.C.V. Mallik
Keyword(s):  
Planetary Nebulae ◽  
Thick Disk

scholarly journals Abundances of Iron-Group Elements in Planetary Nebulae and Consequences for Chemical Enrichment

2016 ◽  
Vol 12 (S323) ◽  
pp. 82-85
Author(s):  
Harriet L. Dinerstein ◽  
T. R. Geballe ◽  
N. C. Sterling
Keyword(s):  
Emission Line ◽  
Chemical Evolution ◽  
Planetary Nebulae ◽  
Infrared Emission ◽  
Thick Disk ◽  
Galactic Chemical Evolution ◽  
Iron Group ◽  
Chemical Enrichment ◽  
Group Species

AbstractWe have developed a method for determining elemental Fe-group abundances in planetary nebulae using an infrared emission line of Zn, the least refractory Fe-group species. Many planetary nebulae, particularly those of the Milky Way’s thick disk and bulge, display subsolar [Fe/H] (as inferred from Zn) although their abundances of α elements such as O, S, and Ar are nearly solar. We discuss the implications for determining enhancements of species synthesized by the progenitor star during the AGB (e.g.,s-process products), and for galactic chemical evolution in view of the metallicity dependence of AGB nucleosynthetic yields.

scholarly journals Photoionization models of roughly circular Galactic planetary nebulae in the thick disk

2005 ◽  
Vol 431 (1) ◽  
pp. 215-221 ◽  
Author(s):  
M. Emprechtinger ◽  
T. Rauch ◽  
S. Kimeswenger
Keyword(s):  
Planetary Nebulae ◽  
Thick Disk

scholarly journals Galactic orbits of Planetary Nebulae unveil thin and thick disk populations and cast light on interaction with the interstellar medium

2004 ◽  
Vol 420 (1) ◽  
pp. 207-211 ◽  
Author(s):  
F. Kerber ◽  
R. P. Mignani ◽  
E.-M. Pauli ◽  
A. Wicenec ◽  
F. Guglielmetti
Keyword(s):  
Interstellar Medium ◽  
Planetary Nebulae ◽  
Thick Disk

Planetary Nebulae Dust as Seen by Herschel

2015 ◽  
Vol 71-72 ◽  
pp. 299-300
Author(s):  
D. Ladjal ◽  
HerPlaNS Consortium
Keyword(s):  
Planetary Nebulae

A Radial Velocity and Light Curve Study of Pulsations and Binarity in Proto-Planetary Nebulae

2015 ◽  
Vol 71-72 ◽  
pp. 127-128
Author(s):  
B.J. Hrivnak ◽  
W. Lu ◽  
G. Van de Steene ◽  
H. Van Winckel ◽  
J. Sperauskas ◽  
...  
Keyword(s):  
Light Curve ◽  
Radial Velocity ◽  
Planetary Nebulae

On the connection between the thick disk and the galactic bar

2014 ◽  
Vol 67-68 ◽  
pp. 405-405
Author(s):  
A. Spagna ◽  
A. Curir ◽  
R. Drimmel ◽  
M.G. Lattanzi ◽  
P. Re Fiorentin ◽  
...  
Keyword(s):  
Thick Disk

Observations of High Rotational CO Lines in Post–Asymptotic Giant Branch Stars and Planetary Nebulae

1997 ◽  
Vol 476 (1) ◽  
pp. 319-326 ◽  
Author(s):  
K. Justtanont ◽  
A. G. G. M. Tielens ◽  
C. J. Skinner ◽  
Michael R. Haas
Keyword(s):  
Planetary Nebulae ◽  
Asymptotic Giant Branch ◽  
Asymptotic Giant Branch Stars ◽  
Giant Branch Stars

Mid‐Infrared (8–21 micron) Imaging of Proto–Planetary Nebulae

1998 ◽  
Vol 492 (2) ◽  
pp. 603-616 ◽  
Author(s):  
Aditya Dayal ◽  
William F. Hoffmann ◽  
John H. Bieging ◽  
Joseph L. Hora ◽  
Lynne K. Deutsch ◽  
...  
Keyword(s):  
Planetary Nebulae ◽  
Mid Infrared

The Circumstellar Extinction of Planetary Nebulae

1999 ◽  
Vol 515 (1) ◽  
pp. 191-195 ◽  
Author(s):  
Robin Ciardullo ◽  
George H. Jacoby
Keyword(s):  
Planetary Nebulae ◽  
Circumstellar Extinction
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