Results 111 to 120 of about 1,176,456 (219)

Infrared Spectra of Solid HCN Embedded in Various Molecular Environments for Comparison with the Data Obtained with JWST

open access: yesThe Astrophysical Journal Letters
Hydrogen cyanide (HCN) molecules serve as an important tracer for the chemical evolution of elemental nitrogen in the regions of star and planet formation.
Maksim Ozhiganov   +10 more
doaj   +1 more source

3 Interstellar Ram Jets

open access: yes, 2016
Published in Proceedings of TVIW 2016, February 28-March 2, Chattanooga, TN / David E. Fields and Abby SherriffThe mass ratio problem in interstellar flight presents a major problem.
Jackson, Albert Allen
core  

Molecules as probes of the interstellar medium

open access: yes
Molecules as probes of the interstellar medium. It is one of the greatest challenges in Nature is to remotely identify what is in space. Interstellar molecules are identified by their spectra, but many features in these spectra are unknown, implying that

core  

Interstellar grain chemistry and organic molecules [PDF]

open access: yes, 1990
The detection of prominant infrared absorption bands at 3250, 2170, 2138, 1670 and 1470 cm(-1) (3.08, 4.61, 4.677, 5.99 and 6.80 micron m) associated with molecular clouds show that mixed molecular (icy) grain mantles are an important component of the ...
Sandford, S. A., Allamandola, L. J.
core  

Binding Energies of Interstellar Complex Organic Molecules on Water Ice Surfaces: A Quantum Chemical Investigation

open access: yesThe Astrophysical Journal
Interstellar dust grains are enveloped by ices of frozen molecules in cold, dense regions of the interstellar medium (ISM), which are also observed in the gas phase. Whether a species is in the solid or gaseous state is governed by its binding energy (BE)
Harjasnoor Kakkar   +4 more
doaj   +1 more source

The Submillimeter-wave Rotational Spectra of Interstellar Molecules

open access: yes, 2002
We discuss past and recent progress in our long-term laboratory program concerning the submillimeter-wave rotational spectroscopy of known and likely interstellar molecules, especially those associated with regions of high-mass star formation.
Herbst, Eric   +7 more
core  

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  

Spectroscopic properties of interstellar molecules: Theory and experiment

open access: yes, 2003
Over the past two decades, the identification and characterisation of interstellar molecules has often benefitted from a fruitful interplay between theoretical chemistry, laboratory spectroscopy and ( radio) astronomy.
Botschwina, Peter
core   +1 more source

On the Origin of Infrared Bands Attributed to Tryptophan in Spitzer Observations of IC 348

open access: yesThe Astrophysical Journal Letters
Infrared emission features toward interstellar gas of the IC 348 star cluster in Perseus have been recently proposed to originate from the amino acid tryptophan.
Aditya Dhariwal   +14 more
doaj   +1 more source

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