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Identifying Binary Central Stars Of Planetary Nebulae With Kepler K2 Campaign 11 Photometric Data
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Book Synopsis Identifying Binary Central Stars of Planetary Nebulae with Kepler K2 Campaign 11 Photometric Data by : Jonathan L. Hurowitz
Download or read book Identifying Binary Central Stars of Planetary Nebulae with Kepler K2 Campaign 11 Photometric Data written by Jonathan L. Hurowitz and published by . This book was released on 2018 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: A large majority of planetary nebulae (PNe) are non-spherical, and many have complex structures; these are unlikely to be created trivially by a single central star. The Binary Hypothesis proposes that the complex morphologies of most non-spherical PNe are caused by interactions between their central stars and companions, with some unknown percentage in close binary systems. In this study, a software pipeline was developed to generate light curves for 140 PNe targets from the Kepler K2 campaign 11 field. Of these 140 targets, 29 appeared to show periodicity in their light curves, all of which had period under two weeks, for a close binary fraction of 21%; furthermore, 25 out of 29 (86%) detected periods were between two hours and five days. The size of this data set (140 PNe) is larger than any previous photometric search for close binary companions of PNe central stars, and the calculated short-period binary fraction is consistent with past photometric searches. These results support the Binary Hypothesis, which in turn helps explain the development of the varied and complex morphologies of PNe.
Book Synopsis A Photometric Investigation of Possible Binary Occurrence in the Central Stars of Seventeen Planetary Nebulae by : Jack Donald Drummond
Download or read book A Photometric Investigation of Possible Binary Occurrence in the Central Stars of Seventeen Planetary Nebulae written by Jack Donald Drummond and published by . This book was released on 1980 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Physical Characteristics of Binary Central Stars of Planetary Nebulae by : Todd C. Hillwig
Download or read book The Physical Characteristics of Binary Central Stars of Planetary Nebulae written by Todd C. Hillwig and published by . This book was released on 2010 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Central Star Binary in the Planetary Nebula Abell 35 by : Anna Audrey Gatti
Download or read book The Central Star Binary in the Planetary Nebula Abell 35 written by Anna Audrey Gatti and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Impact of Binary Stars on Stellar Evolution by : Giacomo Beccari
Download or read book The Impact of Binary Stars on Stellar Evolution written by Giacomo Beccari and published by Cambridge University Press. This book was released on 2019-04-18 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: An advanced review of how binary stars affect stellar evolution, presenting results from state-of-the art models and recent observations.
Book Synopsis The Exoplanet Handbook by : Michael Perryman
Download or read book The Exoplanet Handbook written by Michael Perryman and published by Cambridge University Press. This book was released on 2018-08-30 with total page 973 pages. Available in PDF, EPUB and Kindle. Book excerpt: A complete and in-depth review of exoplanet research, covering the discovery methods, physics and theoretical background.
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :030947941X Total Pages :187 pages Book Rating :4.3/5 (94 download)
Book Synopsis Exoplanet Science Strategy by : National Academies of Sciences, Engineering, and Medicine
Download or read book Exoplanet Science Strategy written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2019-01-17 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: The past decade has delivered remarkable discoveries in the study of exoplanets. Hand-in-hand with these advances, a theoretical understanding of the myriad of processes that dictate the formation and evolution of planets has matured, spurred on by the avalanche of unexpected discoveries. Appreciation of the factors that make a planet hospitable to life has grown in sophistication, as has understanding of the context for biosignatures, the remotely detectable aspects of a planet's atmosphere or surface that reveal the presence of life. Exoplanet Science Strategy highlights strategic priorities for large, coordinated efforts that will support the scientific goals of the broad exoplanet science community. This report outlines a strategic plan that will answer lingering questions through a combination of large, ambitious community-supported efforts and support for diverse, creative, community-driven investigator research.
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1997 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Importance of Binaries in the Formation and Evolution of Planetary Nebulae by : Henri M. J. Boffin
Download or read book The Importance of Binaries in the Formation and Evolution of Planetary Nebulae written by Henri M. J. Boffin and published by Springer Nature. This book was released on 2019-09-04 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is now clear that a binary evolutionary pathway is responsible for a significant fraction of all planetary nebulae, with some authors even going so far as to claim that binarity may be a near requirement for the formation of an observable nebula. This has led to the requirement that textbooks most likely need to be rewritten. Building upon the review of Jones and Boffin in Nature Astronomy (2017), this Springer Brief takes a first step in this direction. It offers the first expanded presentation of all the theoretical and observational support for the importance of binarity in the formation of planetary nebulae, initially focusing on common envelope evolution but also covering wider binaries. This book emphasises the wider impact of the field, highlighting the critical role binary central stars of planetary nebulae have in understanding a plethora of astrophysical phenomena, including type Ia supernovae, chemically peculiar stars and circumbinary exoplanets.
Book Synopsis Astronomy and Astrophysics Monthly Index by :
Download or read book Astronomy and Astrophysics Monthly Index written by and published by . This book was released on 1989 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The NASA Kepler Mission by : Steve B.. Howell
Download or read book The NASA Kepler Mission written by Steve B.. Howell and published by IOP Publishing Limited. This book was released on 2020-09-15 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the numerous, paradigm changing scientific discoveries in exoplanets and other areas of astrophysics made possible by the NASA Kepler and K2 Missions. It is suitable for the interested layperson, pupils of science and space missions, and advanced science students and researchers.
Book Synopsis Asymptotic Giant Branch Stars by : Harm J. Habing
Download or read book Asymptotic Giant Branch Stars written by Harm J. Habing and published by Springer Science & Business Media. This book was released on 2004 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with stars during a short episode before they undergo a ma jor, and fatal, transition. Soon the star will stop releasing nudear energy, it will become a planetary nebula for abrief but poetic moment, and then it will turn into a white dwarf and slowly fade out of sight. Just before this dramatic change begins the star has reached the highest luminosity and the largest diameter in its existence, and while it is a star detectable in galaxies beyond the Local Group, its structure contains already the inconspicuous white dwarf it will become. It is called an "asymptotic giant branch star" or "AGB star". Over the last 30 odd years AGB stars have become a topic of their own although individual members of this dass had already been studied for cen turies without realizing what they were. In the early evolution, so called "E-AGB"-phase, the stars are a bit bluer than, but otherwise very similar to, what are now called red giant branch stars (RGB stars). It is only in the sec ond half of their anyhow brief existence that AGB stars differ fundamentally from RGB stars.
Book Synopsis Transiting Exoplanets by : Carole A. Haswell
Download or read book Transiting Exoplanets written by Carole A. Haswell and published by Cambridge University Press. This book was released on 2010-07-29 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The methods used in the detection and characterisation of exoplanets are presented in this unique textbook for advanced undergraduates.
Book Synopsis Light Curves of Variable Stars by : C. Sterken
Download or read book Light Curves of Variable Stars written by C. Sterken and published by Cambridge University Press. This book was released on 1996-10-28 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most complete and up-to-date reference volume available on variable stars, their classification and properties.
Book Synopsis Lecture Notes and Essays in Astrophysics by : Ana Ulla
Download or read book Lecture Notes and Essays in Astrophysics written by Ana Ulla and published by . This book was released on 2004 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Formation of the Milky Way by : E. J. Alfaro
Download or read book The Formation of the Milky Way written by E. J. Alfaro and published by Cambridge University Press. This book was released on 1995-08-03 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: This review examines all the key physical processes involved in the formation and evolution of the Milky Way, based on an international meeting held in Granada (Spain).
Book Synopsis Differential Rotation in Sun-like Stars from Surface Variability and Asteroseismology by : Martin Bo Nielsen
Download or read book Differential Rotation in Sun-like Stars from Surface Variability and Asteroseismology written by Martin Bo Nielsen and published by Springer. This book was released on 2018-07-13 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: In his PhD dissertation Martin Bo Nielsen performs observational studies of rotation in stars like the Sun. The interior rotation in stars is thought to be one of the driving mechanisms of stellar magnetic activity, but until now this mechanism was unconstrained by observational data. NASA’s Kepler space mission provides high-precision observations of Sun-like stars which allow rotation to be inferred using two independent methods: asteroseismology measures the rotation of the stellar interior, while the brightness variability caused by features on the stellar surface trace the rotation of its outermost layers. By combining these two techniques Martin Bo Nielsen was able to place upper limits on the variation of rotation with depth in five Sun-like stars. These results suggest that the interior of other Sun-like stars also rotate in much the same way as our own Sun.
