AGB star
Far infrared cavity of a post C-rich AGB star under IRAS survey
... the star may become hot enough to ionize its circumstellar material, observable as a planetary nebula (PN), in a few hundred years ...The star at this stage is known as a post-AGB ...
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Study of far infrared cavity around a post AGB star under IRAS survey at galactic latitude -3°
... We are grateful to the Department of Astro-Particle Physics, Innsbrck University, specially to Prof. R. Weinberger for invoking us to work on dusty environments around AGB stars. This research has made use of ...
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Study of dust color temperature and visual extinction distribution of a far infrared cavity at 60 and 100 µm IRAS map around the AGB star at galactic latitude 8.6⁰
... symmetric outflow or symmetric distribution of density and temperature. It further suggests that particles are independently vibrating. Gaussian fit of dust color temperature is Gaussian like with positive skewness shown ...
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2D models for dust-driven AGB star winds
... New axisymmetric (2D) models for dust-driven winds of C-stars are presented which include hydrodynamics with radiation pressure on dust, equilibrium chemistry and time-dependent dust formation with coupled grey Monte ...
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Ultra high resolution observations of circumstellar K I and C2 around the post AGB star HD 56126
... As noted by Bakker (1995) and Bakker et al. (1996), strong absorption lines from resonance atomic transitions are expected to arise in the cool circumstellar shells of post-AGB stars, and they presented ...
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Study of the inner dust envelope and stellar photosphere of the AGB star R Doradus using SPHERE/ZIMPOL
... Results. We find that in the first epoch the surface brightness of R Dor is asymmetric in V and cntHα, the filters where molecular opacity is stronger, while in cnt820 the surface brightness is closer to being ...
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Dust formation in the oxygen-rich AGB star IK Tauri
... loss. AGB stars are the prevalent dust providers to galaxies through their strong winds that replenish the surrounding medium with molecules and dust grains (Gehrz ...the star and its evolutionary stage on ...
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Chemistry and distribution of daughter species in the circumstellar envelopes of O-rich AGB stars
... O-rich AGB stars di ff ers from that found in standard photon-dominated region (PDR) models in which the ion-molecule chemistry of O-bearing species is driven by charge exchange reactions with abundant cations ...
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Photodissociation and chemistry of N 2 in the circumstellar envelope of carbon-rich AGB stars
... 1997). AGB stars undergo considerable mass loss and eject dust and molecules into the surrounding regions, creating circumstel- lar envelopes ...of AGB stars is of particular interest and importance for our ...
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c0a716170c9b4bb4c57fe5025d8908bf009408c1.pdf
... the AGB, several also show evidence of hot bottom ...carbon star in the ...post-AGB star. MSX SMC 145, previously considered a candidate OH / IR star, is actually an AGB ...
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Envelope loss of RGB/AGB stars and the formation of hot subdwarfs
... an AGB star loses its envelope is crucial to our understanding of stellar evolution, and is also relevant to the chemical enrichment of interstellar material and to a better knowledge of type Ia ...giant ...
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Dust features in the 10-mu m infrared spectra of oxygen-rich evolved stars
... rich AGB stars and 62 red supergiants, with a view to understanding the differences and similarities between the dust features of these ...the AGB stars are classified into six groups: broad AGB, ...
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Vol 9, No 6 (2018)
... Definition 3.3: Let (𝑋, 𝜏 1 , 𝜏 2 ) be a bts and (𝑋, 𝜏 12 ) be its associated supra topological space. Then 𝑋 is called a generalized pairwise star 𝑇 2 ( 𝑔𝑝 ∗ 𝑇 2 , for short)space if ∀𝑥, 𝑦 ∈ 𝑋 and 𝑥 ≠ 𝑦 , ∃ ...
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Gender and Racial Identity in Star Trek: The Original Series, Star Trek: The Next Generation, and Star Trek: Discovery
... of Star Trek, “the skirt design for men ‘skant’ was a logical development, given the total equality of the sexes presumed to exist in the 24 th century” (in ...
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On Star Duality of Mixed Intersection Bodies
... of star du- ality are established in Section ...its star dual forms are derived; the Brunn-Minkowski inequalities for the star dual and other inequalities are given in Section ...concerning ...
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Lesson 15 - Space Review 1P Jeopardy.ppt
... Star, Meteorite, Galaxy, Moon, Planet, Meteor, Universe, Star. Cluster,.[r] ...
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Analysis of spatio-social relations in a photographic archive (Flickr)
... comparing: OH with Lone Star State comparing: KY with Lone Star State comparing: 10 with Lone Star State comparing: AR with Lone Star State comparing: IL with State of Texas comparing: N[r] ...
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Planets, Planetary Nebulae, and Intermediate Luminosity Optical Transients (ILOTs)
... Figure 2. A schematic evolution of the radii and densities of planets and stars from the pre-main sequence phase to the WD phase. Upper panel: the ratio of the planet density to the stellar density. If the ratio is above ...
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Vortices in the wakes of AGB stars
... A computational fluid dynamics (CFD) scheme, cubempi , has been used to hydrody- namically simulate the interaction of a star moving through the ISM ejecting a stellar wind during the AGB phase of ...
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OMEGA – OSIRIS Mapping of Emission line Galaxies in A901/2: II Environmental influence on integrated star formation properties and AGN activity
... their star formation, accompanied by a change in their colours and, even- tually, their ...of star-forming objects remain relatively in- variant (Balogh et ...the star formation in ...
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