Results 1 to 10 of about 810,483 (294)

The interstellar cloud surrounding the Sun: a new perspective [PDF]

open access: yes, 2014
Aims: We offer a new, simpler picture of the local interstellar medium, made of a single continuous cloud enveloping the Sun. This new outlook enables the description of a diffuse cloud from within and brings to light some unexpected properties. Methods:
Gry, Cecile, Jenkins, Edward B.
core   +4 more sources

On the Formation of Interstellar Gas Clouds [PDF]

open access: bronzeReviews of Modern Physics, 1958
The characteristic features of interstellar gas clouds—existence of large density fluctuations, their connection with cosmic dust, stretching along the magnetic fields, and so on—may be described by a shock wave theory in interstellar space.The author has developed a theory of stationary shock waves accompanied by losses of energy by means of radiation.
Samuel Kaplan
openalex   +3 more sources

Missing interstellar sulfur in inventories of polysulfanes and molecular octasulfur crowns [PDF]

open access: yesNature Communications
The disparity between predicted sulfur abundances and identified reservoirs of sulfur in cold molecular clouds, also known as the sulfur depletion problem, has remained an ongoing debate over decades.
Ashanie Herath   +8 more
doaj   +2 more sources

Methanetetrol and the final frontier in ortho acids [PDF]

open access: yesNature Communications
The rapid dissociation of methanetetrol (C(OH)4) has been suggested as an impediment to its observation, despite the stability of its substituted derivative orthocarbonates (C(OR)4).
Joshua H. Marks   +10 more
doaj   +2 more sources

Microstructure of the Local Interstellar Cloud and the Identification of the Hyades Cloud [PDF]

open access: yes, 2001
We analyze high-resolution UV spectra of the Mg II h and k lines for 18 members of the Hyades Cluster to study inhomogeneity along these proximate lines of sight.
Diamond C. J.   +14 more
core   +4 more sources

Interstellar cloud collisions [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1985
On decrit les resultats d'une simulation numerique en 3 dimensions de nuages interstellaires isothermes en l'absence de champs magnetiques. Les collisions, en general, ne donnent pas naissance a un ou plusieurs nuages.
H. Pongracic   +3 more
openaire   +3 more sources

An Ice Age JWST inventory of dense molecular cloud ices [PDF]

open access: yesNature Astronomy, 2023
Icy grain mantles are the main reservoir of the volatile elements that link chemical processes in dark, interstellar clouds with the formation of planets and the composition of their atmospheres.
M. McClure   +41 more
semanticscholar   +1 more source

Detection of two interstellar polycyclic aromatic hydrocarbons via spectral matched filtering [PDF]

open access: yesScience, 2021
Identifying PAHs in space Midinfrared spectroscopy has shown that polycyclic aromatic hydrocarbons (PAHs) are abundant in many astronomical objects, but this technique cannot determine which specific PAH molecules are present.
B. McGuire   +14 more
semanticscholar   +1 more source

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