Results 71 to 80 of about 1,333 (183)

The Effect of an Inert Solid Reservoir on Molecular Abundances in Dense Interstellar Clouds

Open Astronomy, 2012
The question, what is the role of freeze-out of chemical species in determining the molecular abundances in the interstellar gas is a matter of debate.
Kalvāns Juris, Shmeld Ivar
doaj   +1 more source

Theoretical Calculations for the Acidity of Cyanopolyynes HC2n+1N (n = 0–5) in Gas and Aqueous Phases Using Ab initio Methods

ARO-The Scientific Journal of Koya University, 2019
Cyanopolyynes have been found in the interstellar medium, cold dust cloud Taurus Molecular Cloud-1, and the Titan’s atmosphere. Theoretical calculations are carried out to predict gas and aqueous phase acidities of a series of cyanopolyynes acids.
Hassan H. Abdallah
doaj   +1 more source

Molekul antar Bintang dan Struktur Galaksi

Journal of Mathematical and Fundamental Sciences, 2019
Ringkasan. Tulisan ini merupakan tinjauan ulang penemuan molekul di dalam ruang antarbintang, kemungkinan pembentukannya dan kaitannya dengan struktur Galaktika. Abstract.
Bambang Hidajat
doaj  

Organic Chemistry in the H2-bearing, CO-rich Interstellar Ice Layer at Temperatures Relevant to Dense Cloud Interiors

The Astrophysical Journal
Ice chemistry in the dense, cold interstellar medium (ISM) is probably responsible for the formation of interstellar complex organic molecules (COMs). Recent laboratory experiments performed at T ∼ 4 K have shown that irradiation of CO:N _2 ice samples ...
Rafael Martín-Doménech, Alexander DelFranco, Karin I. Öberg, Mahesh Rajappan   +3 more
doaj   +1 more source

Optical interstellar lines in dark clouds. [PDF]

The Astrophysical Journal, 1973
<p>Published - <a href="/records/nj8w2-gpn05/files/1973ApJ___186__149C.pdf?download=1">1973ApJ___186__149C.pdf</a></p>
openaire   +2 more sources

Interstellar Migration, the Population ‘Problem’ and the Climate Emergency

Critical Quarterly, Volume 68, Issue 1, Page 103-119, April 2026.
Anna Hartnell
wiley   +1 more source

Cosmic-Ray Induced Diffusion in Interstellar Ices

Open Astronomy, 2014
Cosmic rays are able to heat interstellar dust grains. This may enhance molecule mobility in icy mantles that have accumulated on the grains in dark cloud cores.
Kalvāns Juris
doaj   +1 more source

Interstellar Clouds [PDF]

Monthly Notices of the Royal Astronomical Society, 1969
M. V. Penston, V. Ann Munday, D. J. Strickland, M. J. Penston   +3 more
openaire   +1 more source

Anomalous Neutral Hydrogen Column Densities in Local Interstellar Medium Clouds

The Astrophysical Journal
Analysis of high-resolution spectra of the hydrogen and deuterium Ly α lines provides measurements of interstellar neutral hydrogen column densities N (H i ) to 113 stars within 50 pc of the Sun. Plots of N (H i ) versus distance through the LIC, G, Mic,
Jeffrey L. Linsky, Seth Redfield
doaj   +1 more source

On the Abiotic Origin of Dimethyl Sulfide: Discovery of Dimethyl Sulfide in the Interstellar Medium

The Astrophysical Journal Letters
Following the discovery of dimethyl sulfide (DMS; CH _3 SCH _3 ) signatures in comet 67P/Churyumov–Gerasimenko, we report the first detection of this organosulfur species in the interstellar medium during the exploration of an ultradeep molecular line ...
Miguel Sanz-Novo, Víctor M. Rivilla, Christian P. Endres, Valerio Lattanzi, Izaskun Jiménez-Serra, Laura Colzi, Shaoshan Zeng, Andrés Megías, Álvaro López-Gallifa, Antonio Martínez-Henares, David San Andrés, Belén Tercero, Pablo de Vicente, Sergio Martín, Miguel A. Requena-Torres, Paola Caselli, Jesús Martín-Pintado   +16 more
doaj   +1 more source