Quantitative Emission Spectrum Analysis (III)
نویسندگان
چکیده
منابع مشابه
Absorption and emission spectrum
It is well known that main group metal ions with an s* electron configuration form a large variety of polynuclear coordination compounds [l]. Recently it has been suggested that in these compounds a weak metal-metal bonding may exist which is achieved by sp orbital mixing [2]. In particular, calculations on Tl+ clusters were used to support this idea. Unfortunately, the metal-metal interaction ...
متن کاملPulsar Emission Spectrum
Here we calculate pulsar emission, apparently from first principles, i.e., without any arbitrary assumptions. Our method applies to weak pulsars. A pulsar is called weak if pair production near the light cylinder is negligible compared to Goldreich-Julian density [1] per rotation. The weak pulsar approximation must be accurate for some, and perhaps meaningful for most, Fermi [2] pulsars. We tre...
متن کاملAn analysis of emission lines in the spectrum of PCygni
Using the coudé spectrograph of the NAO 2m telescope at the RhodopeMountains, Bulgaria, 9 spectra in the blue and 8 spectra in the red photographic region of P Cygni were obtained during 1990. By averaging the spectra in each set a S/N-ratio of about 45was achieved. Comparing the lists of identifications published by Beals (1950), de Groot (1969), Ozemre (1978), Stahl et al. (1993), Markova (19...
متن کاملAnalysis of the Spectrum of Doubly Ionized Molybdenum (Mo III)
The spectrum of doubly ionized molybdenum (Mo III) was produced in a sliding spark discharge and recorded photographically on the NIST 10.7-m normal incidence spectrograph in the 800-3250 Å spectral region. The analysis has led to the establishment of 76 levels of the interacting 4d4, 4d3 5s and 4d2 5s2 even configurations, 73 levels of the interacting 4d3 5d and 4d3 6s even configurations, and...
متن کاملPrimordial Molecular Emission in Population III Galaxies
We study formation of molecules in primordial prestellar clumps and evaluate the line luminosities to assess detectability by next-generation facilities. If the initial H2 fraction is sufficiently high, HD becomes an important coolant in the clumps. The luminosity from such HD cooling clumps is lower than that from H2 cooling ones because of lower temperature (< 100K). As for Li reactions, we i...
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: The Journal of the Japan Institute of Metals
سال: 1949
ISSN: 0021-4876
DOI: 10.2320/jinstmet1937.13.8_39