Results 31 to 40 of about 30,505 (211)
Chlorine in dense interstellar clouds - The abundance of HCl in OMC-1 [PDF]
, 1985 We report the first detection of a chlorine-bearing molecular species in the interstellar medium via emission from the J = 1 → 0 transition of HCl at 625.9 GHz toward OMC-1.
Blake, Geoffrey A. +2 more
core +1 more source
Clouds, Clumps, Cores & Comets - a Cosmic Chemical Connection?
, 2008 We discuss the connection between the chemistry of dense interstellar clouds and those characteristics of cometary matter that could be remnants of it. The chemical evolution observed to occur in molecular clouds is summarized and a model for dense core ...
Charnley, S. B., Rodgers, S. D.
core +2 more sources
Proton and Electron Irradiations of CH4:H2O Mixed Ices
Atoms, 2023 The organic chemistry occurring in interstellar environments may lead to the production of complex molecules that are relevant to the emergence of life. Therefore, in order to understand the origins of life itself, it is necessary to probe the chemistry ...
Duncan V. Mifsud +9 more
doaj +1 more source
The Ionization Rate in Dense Interstellar Clouds [PDF]
Symposium - International Astronomical Union, 1987 Measurements of the abundances of OH, HCO+ and DCO+ are employed to derive the ionization rate in molecular clouds.
S. Lepp, A. Dalgarno
openaire +1 more source
Kinematics of H I Envelopes Associated with Molecular Clouds
The Astronomical JournalWe investigate the evolution of molecular clouds through the kinematics of their atomic hydrogen (H I ) envelopes, using ^12 CO and 21 cm emission to trace the molecular and atomic gas, respectively.
Thummim Mekuria, Nia Imara
doaj +1 more source
Sulfur chemistry in dense interstellar clouds
The Astrophysical Journal, 1982 A model is presented for the gas phase chemistry of molecules containing sulfur in dense interstellar clouds. The sulfur chemistry is different from that used in previous models as a result of an extensive search of the recent literature and the availability of new laboratory data.
S. S. Prasad, W. T., Jr. Huntress
openaire +1 more source
Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions
Journal of Field Robotics, EarlyView.ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos +6 more
wiley +1 more source
A High-mass, Young Star-forming Core Escaping from Its Parental Filament
The Astrophysical Journal, 2023 We studied the unique kinematic properties in massive filament G352.63-1.07 at 10 ^3 au spatial scale with the dense molecular tracers observed with the Atacama Large Millimeter/submillimeter Array.
Zhiyuan Ren +19 more
doaj +1 more source
Mind and Cosmos as Throughput Systems: A Convergence Through the Throughput Model
Systems Research and Behavioral Science, EarlyView.ABSTRACT This paper advances a conceptual and mathematical foundations approach by applying the throughput model (TPM) to cosmic phenomena, reframing the universe as an extended information processing system. TPM's four stages, Perception, Information, Judgement and Decision Choice, are reformulated in explicit information‐theoretic and dynamical ...
Waymond Rodgers
wiley +1 more source
The H2 Glow of a Quiescent Molecular Cloud Observed with JWST
The Astrophysical Journal LettersWe report JWST MIRI/MRS observations of the H _2 S (1) 17.04 μ m transition in two regions in the boundary of the Taurus molecular cloud. The two regions, denoted “Edge” (near the relatively sharp boundary of the ^13 CO J = 1 → 0 emission) and “Peak ...
Paul F. Goldsmith +8 more
doaj +1 more source