Pii: S1386-1425(00)00435-2
نویسندگان
چکیده
Since the original laboratory detection of an H3 + spectrum 20 years ago, the search has been on for astronomical observations of this important and fundamental molecular ion. Successful detection of H3 + in gas-giant planets, supernova ejecta and the interstellar medium as well as the prospects for future observations are discussed. The role H3 + has in determining the atmospheric structure of both the gas giants and cool metal-free planets is explored. © 2001 Elsevier Science B.V. All rights reserved.
منابع مشابه
Pii: S1386-1425(01)00477-2
A new and relatively simple version of the quaternion calculus is offered which is especially suitable for applications in molecular symmetry and structure. After introducing the real quaternion algebra and its classical matrix representation in the group SO(4) the relations with vectors in 3-space and the connection with the rotation group SO(3) through automorphism properties of the algebra a...
متن کاملMultiple factorizations of words and defect effect
We prove that if X is a nite preex set and w is a non-periodic bi-innnite word possessing 3 disjoint X-factorizations, then the combinatorial rank of X is at most card(X)?2. This is one of the rare cases when a cumulative defect eeect is known to hold. Finally, connections to the critical factorization theorem are discussed.
متن کاملPii: S1386-1425(01)00663-1
The factors that need to be taken into account to achieve spectroscopic accuracy for triatomic molecules are considered focusing on H3 + and water as examples. The magnitude of the adiabatic and non-adiabatic corrections to the Born–Oppenheimer approximation is illustrated for both molecules, and methods of including them ab initio are discussed. Electronic relativistic effects are not importan...
متن کاملPii: S0038-1098(00)00435-x
Recent magneto-transport experiments on high mobility two-dimensional electron systems have provided strong evidence that a new class of collective electronic states exists at high Landau level occupancy. Among the phenomena observed are strongly anisotropic resistances near half-®lling and curious re-entrant integer quantum Hall states in the ̄anks of high Landau levels. These results have bee...
متن کاملPii: S1386-1425(02)00004-5
The fluorescence spectroscopy of 7-azaindole (In) incorporated in DNA oligonucleotides is investigated. Incorporation of In into DNA oligonucleotides is accomplished through standard solid-phase phosphoramidite chemistry. Fluorescence emission of the In chromophore shifts slightly to the red (from 386 nm to 388 nm) upon glycosylation at the N−1 position, but its relative fluorescence quantum yi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2001