Corpus ID: 119428974

A genetic algorithm approach to fitting interferometric data of post-AGB objects: I. the case of the Ant nebula

  title={A genetic algorithm approach to fitting interferometric data of post-AGB objects: I. the case of the Ant nebula},
  author={D. Macdonald and Orsola De Marco and E. Lagadec and Jun Ma and Olivier Chesneau},
  journal={arXiv: Solar and Stellar Astrophysics},
We present GADRAD, a Python module that adopts heuristic search techniques in the form of genetic algorithms, to efficiently model post-asymptotic giant branch (post- AGB) disc environments. GADRAD systematically constructs the multi-dimensional pa- parameter probability density functions that arise from the fitting of radiative transfer and geometric models to optical interferometric data products. The result provides unbiased descriptions of the object's potential morphology, component… Expand
Accounting for planet-shaped planetary nebulae
By following the evolution of several observed exoplanetary systems we show that by lowering the mass loss rate of single solar-like stars during their two giant branches, these stars will swallowExpand
Herschel Planetary Nebula Survey (HerPlaNS): hydrogen recombination laser lines in Mz 3
The bipolar nebula Menzel 3 (Mz 3) was observed as part of the \textit{Herschel} Planetary Nebula Survey (\textit{HerPlaNS}), which used the PACS and SPIRE instruments aboard the \textit{HerschelExpand
Planetary nebulae with UVIT
The high excitation planetary nebula, NGC 6302, has been imaged in two far-ultraviolet (FUV) filters, F169M (Sapphire; λeff: 1608 Å) and F172M (Silica; λeff: 1717 Å) and two near-UV (NUV) filters,Expand
Keyword search method of distributed file in large data environment
The improved search method saves the search time better and improves the query efficiency. Expand


Practical handbook of genetic algorithms
The Practical Handbook of Genetic Algorithms is an exciting introduction to the power of this approach to solving new and exciting problems faced in the real world. Expand
An Introduction to Genetic Algorithms.
An Introduction to Genetic Algorithms is one of the rare examples of a book in which every single page is worth reading. The author, Melanie Mitchell, manages to describe in depth many fascinatingExpand
Adaptation in Natural and Artificial Systems: An Introductory Analysis with Applications to Biology, Control, and Artificial Intelligence
Initially applying his concepts to simply defined artificial systems with limited numbers of parameters, Holland goes on to explore their use in the study of a wide range of complex, naturally occuring processes, concentrating on systems having multiple factors that interact in nonlinear ways. Expand
Adaptation in natural and artificial systems
Names of founding work in the area of Adaptation and modiication, which aims to mimic biological optimization, and some (Non-GA) branches of AI. Expand
An introduction to genetic
  • 2016
RADMC: A 2-D Continuum
  • A&A,
  • 2007
RADMC: A 2-D Continuum Radiative Transfer Tool
Physical Processes in Red Giants
RADMC-3D: A multi-purpose radiative transfer tool
Observing Compact Disks Inside Pre-Planetary Nebulae with the Very Large Telescope Interferometer
AGB stars appear to lose mass spherically, but many PNe resulting from the AGB mass-loss have non-spherical morphologies. Compact disks have been found in some bipolar PNe, but their role in theExpand