Results 1 to 10 of about 212 (93)

The Next Generation Virgo Cluster Survey. XVII. A Search for Planetary Nebulae in Virgo Cluster Globular Clusters [PDF]

The Astrophysical Journal, 2019
Abstract The occurrence of planetary nebulae (PNe) in globular clusters (GCs) provides an excellent chance to study low-mass stellar evolution in a special (low-metallicity, high stellar density) environment. We report a systematic spectroscopic survey for the [O iii] 5007 Å emission line of PNe in 1469 Virgo GCs and 121 Virgo ultra ...
Weijia Sun, Eric W. Peng, Youkyung Ko, Patrick Côté, Laura Ferrarese, Myung Gyoon Lee, Chengze Liu, Alessia Longobardi, Igor V. Chilingarian, Chelsea Spengler, Ann I. Zabludoff, Hong-Xin Zhang, Jean-Charles Cuillandre, Stephen D. J. Gwyn   +13 more
openaire   +4 more sources

A New Generation of Photoionization Codes: Three‐dimensional Models. The Bipolar Planetary Nebula IC 4406

The Astrophysical Journal, 1997
A three-dimensional self-consistent photoionization code is developed in order to build more realistic models for asymmetric and/or inhomogeneous photoionized nebulae. With these models the assumption of spherical or plane-parallel symmetry can be dropped and models with various geometries can be treated.
R. Gruenwald, S. M. Viegas, D. Broguiere
openaire   +1 more source

On the Physical Differences Between the Planetary Nebulae of the Galactic Centre Group and the Planetaries of the General Galactic Field [PDF]

Symposium - International Astronomical Union, 1978
The mean physical parameters were estimated for the planetary nebulae of the two groups, regarded as a whole: planetaries of a general Galactic field (GGF), and those, belonging to a large group seen in the Galactic centre direction (CG).
openaire   +1 more source

MILAN Sky Survey, a dataset of raw deep sky images captured during one year with a Stellina automated telescope. [PDF]

Data Brief, 2023
Parisot O, Hitzelberger P, Bruneau P, Krebs G, Destruel C, Vandame B.   +5 more
europepmc   +1 more source

The mystery of unidentified infrared emission bands. [PDF]

Astrophys Space Sci, 2022
Kwok S.
europepmc   +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

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

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