Committee 4: Structure of Atomic Spectra
نویسندگان
چکیده
منابع مشابه
- Atomic Spectra Atomic Structure
T HE present edition of this work contains a number of corrections and additions; Birge's new set of fundamental constants has been adopted throughout, and various tables, especially the table of ionization potentials, have been brought up to date. The author is indebted to Professor J. W. Ellis of the University of California at Los Angeles for a list of errors and corrections ; several of the...
متن کاملSpectra of atomic theories
For a countable structure B, the spectrum is the set of Turing degrees of isomorphic copies of B. For complete elementary first order theory T , the spectrum is the set of Turing degrees of models of T . We answer a question from [1], showing that there is an atomic theory T whose spectrum does not match the spectrum of any structure.
متن کاملExceptional points in atomic spectra.
We report the existence of exceptional points for the hydrogen atom in crossed magnetic and electric fields in numerical calculations. The resonances of the system are investigated and it is shown how exceptional points can be found by exploiting characteristic properties of the degeneracies, which are branch point singularities. A possibility for the observation of exceptional points in an exp...
متن کاملSoft Soil Seismic Design Spectra Including Soil-structure Interaction
Design spectrum is known as an essential tool in earthquake engineering for calculation of maximum (design) responses in a structural system. Soil-structure interaction (SSI), as a phenomenon of coupling of responses of a structure and its underlying soil, was explored after introduction of design spectra and has not been taken into account in developing a design spectrum traditionally. To cons...
متن کاملMid-infrared Atomic Fine-structure Emission Line Spectra of Luminous Infrared Galaxies: Spitzer/irs Spectra of the Goals Sample
We present the data and our analysis of mid-infrared atomic fine-structure emission lines detected in Spitzer/IRS high-resolution spectra of 202 local Luminous Infrared Galaxies (LIRGS) observed as part of the Great Observatories All-sky LIRG Survey (GOALS). We readily detect emission lines of [SIV], [NeII], [NeV], [NeIII], [SIII]18.7 μm, [OIV], [FeII], [SIII]33.5μm, and [SiII]. More than 75% o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Transactions of the International Astronomical Union
سال: 1970
ISSN: 0251-107X
DOI: 10.1017/s0251107x00023609