Results 61 to 70 of about 1,333 (183)
Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.Abstract Xenon (Xe) is a heavy noble gas with intriguing chemical properties, such as having several stable isotopes and the ability to form compounds under extreme conditions. Despite the predictions based on cosmochemical models that suggest xenon should be relatively abundant in planetary reservoirs, empirical data indicate a significant depletion ...
Avinash Kumar Both +2 more
wiley +1 more source
Submillimeterwave Spectroscopy of and Interstellar Search for Nitrosomethane: CH3NO
The Astrophysical JournalNew measurements of nitrosomethane (CH _3 NO), a formamide isomer, were done up to 660 GHz. The molecule exhibits internal rotation motion from the CH _3 group, and therefore the analysis with a dedicated rho-axis method code, RAM36, was used. A total of
Laurent Margulès +6 more
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Nearby Supernova and Cloud Crossing Effects on the Orbits of Small Bodies in the Solar System
The Astrophysical Journal LettersSupernova (SN) blasts envelop many surrounding stellar systems, transferring kinetic energy to small bodies in the systems. Geologic evidence from ^60 Fe points to recent nearby SN activity within the past several Myr.
Leeanne Smith +2 more
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Open Astronomy, 2003 Seven-color photometry in the Vilnius system has been obtained for 420 stars down to V = 16 mag in the area containing the overlapping open clusters NGC 1750 and NGC 1758 in Taurus.
Straižys V. +8 more
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The Astrophysical Journal LettersTo date, 14 polycyclic aromatic hydrocarbons (PAHs) ranging in size from two to seven (including five- and six-membered) carbon rings have been detected in the starless dense core Taurus molecular cloud (TMC-1 CP).
Gabi Wenzel +14 more
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INTERSTELLAR CLOUDS BY SEARCHLIGHT
The Astronomical Journal, 2009 Interpretation of high-resolution observations of absorption by interstellar clouds of radiation from extragalactic sources should include the effect of the Earth's motion with respect to the source. High-resolution H I absorption profiles that are not heavily blended have been published for eight sources.
openaire +1 more source
On the Genetic Relation Between Interstellar Clouds and Dust Clouds [PDF]
Symposium - International Astronomical Union, 1973 We propose that many of the denser dust clouds represent transient stages between the initiation of gravitational collapse of ordinary interstellar clouds by passage through a spiral galactic shock and the appearance of a stellar association. The interstellar gas is not processed at too rapid a rate (1) because the time spent between galactic shocks is
openaire +1 more source
The Chemistry of Cold, Dark Interstellar Clouds [PDF]
Symposium - International Astronomical Union, 1987 In recent years the nearby cold, dark clouds have been shown to possess a rich chemistry, with interesting differences with respect to warmer massive-star-forming regions and also among the cold clouds themselves. 39 molecular species are now known in these regions.
openaire +2 more sources
Astronomy & AstrophysicsMost stars form in dense stellar environments, where frequent close encounters can strongly perturb and reshape the early architecture of planetary systems.
Torres Santiago
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A study of X-ray point sources in Heiles Clouds 1 and 2
Acta PolytechnicaStar formation takes place in the coldest parts of molecular clouds, beginning in the densest, collapsing regions of filaments. As pre-main sequence stars are luminous X-ray emitters, X-ray point sources can serve as effective tracers of YSOs.
Nóra Varga +2 more
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