8 Result(s)
within
Chapter
R. Schaeffer
English
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Chapter and Conference Paper
Low-Mass Objects and the Dark Matter in the Halo
If the unseen matter in our Galaxy is provided by very low-mass star-like objects, we show that the halo infrared luminosity is dominated by 0. 1M ⊙ objects. In this case, the halo IMF must be muc...
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Chapter and Conference Paper
The light curve of SN 1987 A
We use a semi-analytical model of supernova light curves that extends Arnett's scheme [1,2] to include the effect of recombination of hydrogen, helium and heavy elements in the expanding ejecta. Introducing in...
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Chapter and Conference Paper
New Developments in Tunable-Diode-Laser Spectroscopy
Tunable Diode Laser Absorption Spectrometer (TOLAS) have been used throughout many years to expand our knowledge about molecular systems and molecular dynamics. This includes the study on neutral molecules, ra...
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Chapter
Influence Of Quark Nuggets on Primordial Nucleosynthesis
There are many indications that the baryonic content of the universe is rather low. The observation of the luminous matter in galaxies leads to a ratio Ωbof the baryon density over the critical density of about 0...
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Chapter
Light Curves of Exploding Wolf-Rayet Stars
The removal of the extended hydrogen envelope surrounding the dense core of preexplosive stars by stellar winds or mass transfer onto a companion star, obviously, has consequences on the optical manifestation ...
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Chapter and Conference Paper
Late Mesozoic to Tertiary Mineralization in the North-Eastern Sauerland (Rheinisches Schiefergebirge, Western Germany)
In the Paleozoic Sauerland Mountains there are many vein-type ore bodies and occurrences of “alpidic” (saxonian) age, and related strata-bound, epigenetic ores in the transgressive Mesozoic rocks (Permian, Cre...
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Chapter
An Improved Prescription for Calculating the Negative Parity Spectrum of Doubly-Closed Shell Nuclei
It is noted that T.D.A. and R.P.A. calculations for the negative parity states in doubly-closed shell nuclei with N=Z generally underestimate the splitting between the T=0 and T=1 members of a given multiplet....
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Chapter
α-Particle Intermediate State in the (h,t) Reaction
We report on preliminary calculations of the (h,t) reaction, assuming that the helion picks up a neutron, propagates some distance as an alpha, and then strips a proton. The following qualitative results are e...
