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pro vyhledávání: '"B. F. Hatfield"'
Autor:
B. F. Hatfield
Publikováno v:
Mathematical Aspects of String Theory.
The star HD 200775 illuminates the reflection nebula NGC 7023. This star is one of a small group of Ae and Be stars associated with nebulosity and proposed by Herbig as candidates for newly formed stars of moderately large mass. The system is a part
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9bca8db4b8da4360dccb5a9b8d9a844d
https://europepmc.org/articles/PMC348197/
https://europepmc.org/articles/PMC348197/
Autor:
B. F. Hatfield
Publikováno v:
Physical Review D. 29:2995-2996
It is pointed out here that an inconsistency between the commutation relations and the implementation of Gauss's law as a constraint in the temporal gauge for QED involves only the longitudinal part of the vector potential. Therefore, it will not aff
Publikováno v:
Publications of the Astronomical Society of the Pacific. 92:259
Spectrophotometry of a faint filament near the position of the radio source W50 is presented. Emission lines that are characteristic of supernova remnants are seen with a radial velocity of about +100 km/s relative to the local standard of rest. The
Autor:
B. F. Hatfield, E. P. Ney
Publikováno v:
The Astronomical Journal. 85:1292
The optical depth of the dust shells of novae in the infrared is an important parameter in discussing the energy balance and the morphology of the nova ejecta. A recent publication has questioned our previous interpretation of infrared data for NQ Vu
Autor:
B. F. Hatfield, Edward P. Ney
Publikováno v:
The Astrophysical Journal. 219:L111
Nova Vulpeculae 1976 has been followed with broad-band photometry at wavelengths of 0.5 to 12.5 microns from day 3 to day 235. Three definite phases are identified. They are expanding pseudophotosphere, free-free expansion, and dust condensation. A v