Results 61 to 70 of about 399 (137)

Is the Sulphur Anomaly in Planetary Nebulae Caused by the s-Process?

, 2016
Motivated by unexplained observations of low sulphur abundances in planetary nebulae (PNe) and the PG1159 class of post asymptotic giant branch (AGB) stars, we investigate the pos-sibility that sulphur may be destroyed by nucleosynthetic processes in low-
Luke J. Shingles, Karakas, Amanda, Shingles, Luke, A I. Karakas   +3 more
core   +1 more source

Infrared Line Emission from Planetary Nebulae. I - General Theory

, 1966
General theory of infrared line emission from planetary ...
Gould, R. J., Ramsay, W., Delmer, T. N.
core  

History of two mass loss processes in VY CMa. [PDF]

Proc Int Astron Union, 2023
Quintana-Lacaci G, Velilla L, Fonfría JP, Cernicharo J, Castro-Carrizo A, Agúndez M, Decin L.   +6 more
europepmc   +1 more source

Polarization properties of OH emission in planetary nebulae

A correction has been published: Monthly Notices of the Royal Astronomical Society, Volume 472, Issue 1, November 2017, Page 1151, https://doi.org/10.1093/mnras/stx2063We present the interferometric, full-polarization observations of the four ground ...
Suárez, Olga, Uscanga, Lucero, Bendjoya, Philippe, Gómez, José F., Miranda, Luis F., Green, James A.   +5 more
core   +1 more source

Chemical Abundances of Planetary Nebulae in the Substructures of M31

, 2015
We present deep spectroscopy of planetary nebulae (PNe) that are associated with the substructures of the Andromeda Galaxy (M31). The spectra were obtained with the Optical System for Imaging and low-intermediate-Resolution Integrated Spectroscopy ...
Guerrero, Martin A., García-Benito, R, Guerrero, MA, Liu, X, Zhang, Bing, Fang, X, Garcia-Benito, Ruben, Zhang, Y, Yuan, H, Liu, Xiaowei, Yuan, Haibo, Zhang, B, Fang, Xuan, Zhang, Yong   +13 more
core   +1 more source

Overview of the LAMOST survey in the first decade. [PDF]

Innovation (Camb), 2022
Yan H, Li H, Wang S, Zong W, Yuan H, Xiang M, Huang Y, Xie J, Dong S, Yuan H, Bi S, Chu Y, Cui X, Deng L, Fu J, Han Z, Hou J, Li G, Liu C, Liu J, Liu X, Luo A, Shi J, Wu X, Zhang H, Zhao G, Zhao Y.   +26 more
europepmc   +1 more source

Deuterium Isotope Fractionation of Polycyclic Aromatic Hydrocarbons in Meteorites as an Indicator of Interstellar/Protosolar Processing History. [PDF]

Life (Basel), 2022
Graham HV, Elsila JE, Dworkin JP, Sandford SA, Aponte JC.   +4 more
europepmc   +1 more source

Common envelope binary interaction simulations between a thermally pulsating AGB star and a low mass companion. [PDF]

Mon Not R Astron Soc, 2022
González-Bolívar M, De Marco O, Lau MYM, Hirai R, Price DJ.   +4 more
europepmc   +1 more source

Timing of Martian Core Formation from Models of Hf-W Evolution Coupled with N-body Simulations. [PDF]

Geochim Cosmochim Acta, 2022
Brennan MC, Fischer RA, Nimmo F, O'Brien DP.   +3 more
europepmc   +1 more source

Morphologies and Central Stars of Planetary Nebulae in the Galactic bulge from VLT, HST and Pan-STARRS imaging

This is the first in a series of papers that present sets of different results for 136 compact, known planetary nebulae within a10 × 10 degree region of the Galactic bulge.
Ritter, Andreas, Parker, Quentin A., Zijlstra, Albert; id_orcid, Tan, Shuyu   +3 more
core   +1 more source