Results 11 to 20 of about 1,113,005 (163)

Considerations Regarding Interstellar Molecules [PDF]

open access: yesThe Astrophysical Journal, 1937
An attempt has been made to compute the numbers of certain molecules in interstellar space. The results obtained are unfavorable to Saha's identification of one of Merrill's interstellar lines with Na2. A search for the bands of CH, OH, NH, CN, and C2 would appear to be promising.
Swings, Polydore, Rosenfeld, L.
openaire   +3 more sources

Observational astrochemistry: The quest for interstellar molecules

open access: yesEPJ Web of Conferences, 2012
Over 160 molecular species, not counting isotopologues, have been identified in circumstellar envelopes and interstellar clouds. These species have revealed a wealth of familiar, as much as exotic molecules and in complex organic (and silicon) compounds,
Guélin M.
doaj   +2 more sources

Modelling and observations of molecules in discs around young stars [PDF]

open access: yes, 2013
This thesis contains a study of molecules within circumstellar discs around young stars. Firstly, the chemistry of a disc around a young, Class 0 protostar is modelled.
Ilee, John David
core   +6 more sources

Spin-Forbidden Formation of Amide Molecules in the Interstellar Medium [PDF]

open access: yes, 2023
In this study, two-state spin-forbidden mechanisms are proposed for the barrierless formation of amide isomers in the C2H5NO family of molecules.
Sergey, Varganov, Amir, Mirzanejad
core   +2 more sources

Technology requirements of exploration beyond Neptune by solar sail propulsion [PDF]

open access: yes, 2010
This paper provides a set of requirements for the technology development of a solar sail propelled Interstellar Heliopause Probe mission. The mission is placed in the context of other outer solar systems missions, ranging from a Kuiper Belt mission ...
Hughes, G.W.   +2 more
core   +4 more sources

Interstellar Molecules [PDF]

open access: yes, 2011
This book deals with the astrophysics and spectroscopy of the interstellar molecules. In the introduction, overview and history of interstellar observations are described in order to help understanding how the modern astrophysics and molecular ...
Yamada, Koichi M T, Winnewisser, Gisbert
openaire   +2 more sources

Dust evolution, a global view: II. Top-down branching, nanoparticle fragmentation and the mystery of the diffuse interstellar band carriers [PDF]

open access: yesRoyal Society Open Science, 2016
The origin of the diffuse interstellar bands (DIBs), one of the longest-standing mysteries of the interstellar medium (ISM), is explored within the framework of The Heterogeneous dust Evolution Model for Interstellar Solids (THEMIS). The likely nature of
A. P. Jones
doaj   +1 more source

Interstellar Molecules - Theory [PDF]

open access: yesSymposium - International Astronomical Union, 1974
A number of possible mechanisms for the formation of molecules in the interstellar medium are discussed. Plausible suggestions have been made for the production of most of the known diatomics, but there is little understanding of polyatomics so far.
openaire   +1 more source

Turbulence in the interstellar medium [PDF]

open access: yes, 2014
Turbulence is ubiquitous in the insterstellar medium and plays a major role in several processes such as the formation of dense structures and stars, the stability of molecular clouds, the amplification of magnetic fields, and the re-acceleration and ...
Chian, A. C. -L.   +9 more
core   +2 more sources

High‐Pressure Carbonaceous Phases as Minerals

open access: yesGeophysical Monograph Series, Page 11-23., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Oliver Tschauner
wiley  

+1 more source

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