Ring nebulae abundances: Probes of the evolutionary history of luminous blue variable stars

2008 ◽  
pp. 400-404
Author(s):  
Linda J. Smith ◽  
Antonella Nota ◽  
Anna Pasquali ◽  
Claus Leitherer ◽  
Mark Clampin ◽  
...  
Keyword(s):  
Evolutionary History ◽  
Variable Stars ◽  
History Of ◽  
Ring Nebulae ◽  
Luminous Blue Variable

Ring Nebulae Abundances: Probes of the Evolutionary History of Luminous Blue Variable Stars

1999 ◽  
Vol 169 ◽  
pp. 400-404
Author(s):  
Linda J. Smith ◽  
Antonella Nota ◽  
Anna Pasquali ◽  
Claus Leitherer ◽  
Mark Clampin ◽  
...  
Keyword(s):  
Evolutionary History ◽  
Hubble Space Telescope ◽  
Variable Stars ◽  
Surface Layers ◽  
The Past ◽  
Faint Object ◽  
History Of ◽  
Faint Object Spectrograph ◽  
Ring Nebulae ◽  
Luminous Blue Variable

The ring nebulae that surround most Luminous Blue Variable (LBV) stars are believed to be the relics of one or more giant eruptions (cf. Nota, these proc.). The nebulae thus represent the stellar surface layers at the time of the eruption(s) and by analysing their chemical composition and dynamics, it is possible to infer the past evolutionary state of the star.Observations with the Hubble Space Telescope (HST) and the Faint Object Spectrograph (FOS) were obtained for the nebulae around the two LMC LBVs R127 and R143, and the Ofpe/WN9 star S119 for the purpose of obtaining abundances. The spectra cover the wavelength range 3235–6818 Å and aslit of dimensions 1″.7 × 0″.2 was placed on the brightest portion of each nebula. Full details of these observations are given in Smith et al. (1998).

Elaborating the role of reflection and individual differences in the study of folk-economic beliefs

2018 ◽  
Vol 41 ◽  
Author(s):  
Kevin Arceneaux
Keyword(s):  
Decision Making ◽  
Individual Differences ◽  
Cognitive Processes ◽  
Evolutionary History ◽  
Behavioral Responses ◽  
History Of ◽  
Economic Beliefs

AbstractIntuitions guide decision-making, and looking to the evolutionary history of humans illuminates why some behavioral responses are more intuitive than others. Yet a place remains for cognitive processes to second-guess intuitive responses – that is, to be reflective – and individual differences abound in automatic, intuitive processing as well.

STRUCTURAL REARRANGEMENTS AT THE REGULATORY REGION OF THE DRAS1 GENE IN THE EVOLUTIONARY HISTORY OF PHYLOGENETICALLY DISTANT DROSOPHILA SPECIES

2018 ◽  
Author(s):  
A.I. CHEKUNOVA ◽  
◽  
S. YU. SOROKINA ◽  
E.A. SIVOPLYAS ◽  
G.N. BAKHTOYAROV ◽  
...  
Keyword(s):  
Evolutionary History ◽  
Regulatory Region ◽  
Drosophila Species ◽  
Structural Rearrangements ◽  
History Of

PHYLOGENY AND EVOLUTIONARY HISTORY OF LICHID TRILOBITES

2017 ◽  
Author(s):  
James C. Lamsdell ◽  
◽  
Melanie J. Hopkins
Keyword(s):  
Evolutionary History ◽  
History Of

INFERRING THE EVOLUTIONARY HISTORY OF NITROGENASE METAL UTILIZATION

2019 ◽  
Author(s):  
Amanda Garcia ◽  
◽  
Hanon McShea ◽  
Bryan Kolaczkowski ◽  
Betul Kacar
Keyword(s):  
Evolutionary History ◽  
History Of
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