Results 211 to 220 of about 210,358 (255)

Unraveling the Spectroscopy of the Phenalenyl Radical. [PDF]

ACS Phys Chem Au
Levey ZD, Laws BA, Hansen CS, Stanton JF, Kable SH, Schmidt TW.   +5 more
europepmc   +1 more source

Rate constants for a reactive system of astrophysical interest: a statistical study of CH₂^. [PDF]

Phys Chem Chem Phys
González-Lezana T, Konings M, Loreau J, Lique F, Sil M, Faure A.   +5 more
europepmc   +1 more source

A possible direct exposure of the Earth to the cold dense interstellar medium 2-3 Myr ago. [PDF]

Nat Astron
Opher M, Loeb A, Peek JEG.
europepmc   +1 more source

Deciphering the Complexity in the Rotational Spectrum of Deuterated Ethylene Glycol. [PDF]

ACS Earth Space Chem
Claus JA, Melosso M, Maillard A, Bizzocchi L, Barone V, Puzzarini C.   +5 more
europepmc   +1 more source

V3101 Cyg: A Cataclysmic Variable Born with a Brown Dwarf Donor

Ramirez S, Gänsicke B, Sahu S, Belloni D, Pala A, Koester D, Toloza O, Lagos-Vilches F.   +7 more
europepmc   +1 more source

Carbon and oxygen X-ray line emission from the interstellar medium

The Astrophysical Journal, 1982
A soft X-ray, 0.3-1.0 keV spectrum from a 1 sr region which includes a portion of the North Polar Spur, obtained by three rocketborne lithium-drifted silicon detectors, shows the C V, C VI, O VII and O VIII emission lines. The spectrum is well fitted by a two-component, modified Kato (1976) model, where the coronal emission is in collisional ...
H. Schnopper, J. Delvaille, R. Rocchia, C. Blondel, C. Cheron, J. Christy, R. Ducros, L. Koch, R. Rothenflug   +8 more
semanticscholar   +2 more sources

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Measuring EUV Line Emission from the Hot Interstellar Medium

International Astronomical Union Colloquium, 1984
AbstractIn the local interstellar medium, the presence of hot gas (log T ~ 5 to 6) has been inferred from measurements of oxygen VI absorption in the ultraviolet, and from diffuse emission in the extreme ultraviolet (EUV) and soft X-ray regions. Here we describe a spectrometer that is very sensitive to gas in this temperature range.
Simon Labov, Christopher Martin, Stuart Bowyer   +2 more
openaire   +1 more source

On the excitation mechanism of the 21-cm (radio-frequency) interstellar hydrogen emission line.

The Astronomical Journal, 1952
S. A. Wouthuysen
semanticscholar   +3 more sources

Survey of Molecular Emission Lines in the WB 673 Interstellar Filament

Astronomy Reports, 2020
We report observations of molecular line emission toward dense clumps of the WB 673 interstellar filament: WB 668, WB 673, S233–IR, and G173.57+2.43. The observations were done with the 20-m telescope at the Onsala Space Observatory (Sweden). Maps of emission, column densities, and relative abundances of CO, N2H
O. L. Ryabukhina, M. S. Kirsanova
openaire   +1 more source

Fir continuum and line emissions from interstellar medium in galaxies

Astrophysics and Space Science, 2010
A self-consistent method has been evolved to infer physical parameters like density, radiation field and abundances using line and continuum radiations as diagnostics. For that purpose, we first calculate the temperatures of graphite and silicate grains using the model of Li and Draine (Astrophys. J.
null Shafiqullah, Suhail Ahmad Siddiqui, Abdul Qaiyum   +2 more
openaire   +1 more source