Pub Date : 2020-08-27DOI: 10.1017/9781108933001.015
R. Thomas
The model's restriction to thermal fluxes; the relation between thermal fluxes and atmospheric stateparameters; predicted sizes of thermal matter-flux for observed stars, and its implied unimportance; distribution of state-parameters throughout the atmosphere under the condition of only photon fluxes and linear nonEquiibrium; the same, removing the linearity condition for photon storage and fluxes; resulting physical internal inconsistency of the simple model re linearity; the model when the linearity condition on internal atomic degrees of freedom is removed. A. Kinds of Observed Fluxes to be Expected Under Thermal Models and Their Sizes Obviously, we expect only thermal fluxes; but the questions are their expected size, relative to our observing capability, and upon what this size depends. An upper limit to the flux size is fixed by using the size of the corresponding storage quantity, the fq at some quasi-Equilibrium interior point to compute the flux at the boundary. Consider, for reference, the above-mentioned blackbody cavity whose walls are surrounded by a vacuum. The fluxes from an infinitesimal hole are given by eq. (2.4), where we use Equilibrium distribution functions (cf Vol. 2) for fq (vj) because it is a blackbody cavity:
{"title":"Stellar Atmospheres","authors":"R. Thomas","doi":"10.1017/9781108933001.015","DOIUrl":"https://doi.org/10.1017/9781108933001.015","url":null,"abstract":"The model's restriction to thermal fluxes; the relation between thermal fluxes and atmospheric stateparameters; predicted sizes of thermal matter-flux for observed stars, and its implied unimportance; distribution of state-parameters throughout the atmosphere under the condition of only photon fluxes and linear nonEquiibrium; the same, removing the linearity condition for photon storage and fluxes; resulting physical internal inconsistency of the simple model re linearity; the model when the linearity condition on internal atomic degrees of freedom is removed. A. Kinds of Observed Fluxes to be Expected Under Thermal Models and Their Sizes Obviously, we expect only thermal fluxes; but the questions are their expected size, relative to our observing capability, and upon what this size depends. An upper limit to the flux size is fixed by using the size of the corresponding storage quantity, the fq at some quasi-Equilibrium interior point to compute the flux at the boundary. Consider, for reference, the above-mentioned blackbody cavity whose walls are surrounded by a vacuum. The fluxes from an infinitesimal hole are given by eq. (2.4), where we use Equilibrium distribution functions (cf Vol. 2) for fq (vj) because it is a blackbody cavity:","PeriodicalId":345567,"journal":{"name":"Foundations of Astrophysics","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115615910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-27DOI: 10.1201/9780203912836.ch15
H. Karttunen, Pekka Kröger, H. Oja, M. Poutanen, K. J. Donner
Every word to utter from the writer involves the element of this life. The writer really shows how the simple words can maximize how the impression of this book is uttered directly for the readers. Even you have known about the content of the interstellar medium so much, you can easily do it for your better connection. In delivering the presence of the book concept, you can find out the boo site here.
{"title":"The Interstellar Medium","authors":"H. Karttunen, Pekka Kröger, H. Oja, M. Poutanen, K. J. Donner","doi":"10.1201/9780203912836.ch15","DOIUrl":"https://doi.org/10.1201/9780203912836.ch15","url":null,"abstract":"Every word to utter from the writer involves the element of this life. The writer really shows how the simple words can maximize how the impression of this book is uttered directly for the readers. Even you have known about the content of the interstellar medium so much, you can easily do it for your better connection. In delivering the presence of the book concept, you can find out the boo site here.","PeriodicalId":345567,"journal":{"name":"Foundations of Astrophysics","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124250692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-27DOI: 10.1017/9781108933001.014
{"title":"Properties of Stars","authors":"","doi":"10.1017/9781108933001.014","DOIUrl":"https://doi.org/10.1017/9781108933001.014","url":null,"abstract":"","PeriodicalId":345567,"journal":{"name":"Foundations of Astrophysics","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116809157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-27DOI: 10.2514/5.9781600862533.0023.0040
V. Pisacane
2 ISP 205 Astronomy Gary D. Westfall Lecture 8 Inventory • Mercury, Venus, Earth, Mars, Jupiter, and Saturn were known to the ancients • Uranus, Neptune, and Pluto were discovered after the invention of the telescope • The masses of the planets have been known for centuries based on Newton’s Law of Gravity • Each planet rotates on it own axis Most rotate in the same direction as they orbit Venus rotates slowly backward Uranus and Pluto are nearly tipped on their sides
{"title":"Overview of the Solar System","authors":"V. Pisacane","doi":"10.2514/5.9781600862533.0023.0040","DOIUrl":"https://doi.org/10.2514/5.9781600862533.0023.0040","url":null,"abstract":"2 ISP 205 Astronomy Gary D. Westfall Lecture 8 Inventory • Mercury, Venus, Earth, Mars, Jupiter, and Saturn were known to the ancients • Uranus, Neptune, and Pluto were discovered after the invention of the telescope • The masses of the planets have been known for centuries based on Newton’s Law of Gravity • Each planet rotates on it own axis Most rotate in the same direction as they orbit Venus rotates slowly backward Uranus and Pluto are nearly tipped on their sides","PeriodicalId":345567,"journal":{"name":"Foundations of Astrophysics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121183051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-27DOI: 10.1017/9781108933001.018
A. Cooper, R. Stannard, B. Jones
{"title":"Formation and Evolution of Stars","authors":"A. Cooper, R. Stannard, B. Jones","doi":"10.1017/9781108933001.018","DOIUrl":"https://doi.org/10.1017/9781108933001.018","url":null,"abstract":"","PeriodicalId":345567,"journal":{"name":"Foundations of Astrophysics","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130393511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-27DOI: 10.1017/9781108933001.007
{"title":"Astronomical Detection of Light","authors":"","doi":"10.1017/9781108933001.007","DOIUrl":"https://doi.org/10.1017/9781108933001.007","url":null,"abstract":"","PeriodicalId":345567,"journal":{"name":"Foundations of Astrophysics","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126353274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-27DOI: 10.1017/9781108933001.006
A. Yariv
Abstract : The report contains a summarization of the following efforts: Propagation through turbulent atmospheres in which a new method for obtaining exact analytical expressions for some statistical functions of an optical wave propagating through a randomly turbulent medium was obtained; Nonlinear optics statistics in which the necessary quantum field formalism needed to evaluate the average number of photons in the various modes as well as their variances was developed; Cadmium telluride as a window and electrooptical material in which the electrooptic properties and the optical losses of CdTe were measured; Electrooptic control in integrated optics; Phenomena in High Gain Lasers; and Mode Locking by Kerr (Optically Nonlinear) Liquids. (Author)
{"title":"Interaction of Radiation and Matter","authors":"A. Yariv","doi":"10.1017/9781108933001.006","DOIUrl":"https://doi.org/10.1017/9781108933001.006","url":null,"abstract":"Abstract : The report contains a summarization of the following efforts: Propagation through turbulent atmospheres in which a new method for obtaining exact analytical expressions for some statistical functions of an optical wave propagating through a randomly turbulent medium was obtained; Nonlinear optics statistics in which the necessary quantum field formalism needed to evaluate the average number of photons in the various modes as well as their variances was developed; Cadmium telluride as a window and electrooptical material in which the electrooptic properties and the optical losses of CdTe were measured; Electrooptic control in integrated optics; Phenomena in High Gain Lasers; and Mode Locking by Kerr (Optically Nonlinear) Liquids. (Author)","PeriodicalId":345567,"journal":{"name":"Foundations of Astrophysics","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121444592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-27DOI: 10.1017/9781108933001.010
大野 友資
{"title":"Earth and Moon","authors":"大野 友資","doi":"10.1017/9781108933001.010","DOIUrl":"https://doi.org/10.1017/9781108933001.010","url":null,"abstract":"","PeriodicalId":345567,"journal":{"name":"Foundations of Astrophysics","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131754299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-27DOI: 10.1017/9781108933001.003
{"title":"Emergence of Modern Astronomy","authors":"","doi":"10.1017/9781108933001.003","DOIUrl":"https://doi.org/10.1017/9781108933001.003","url":null,"abstract":"","PeriodicalId":345567,"journal":{"name":"Foundations of Astrophysics","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123461606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：