Results 1 to 10 of about 62,370 (245)
The Molecular Cloud Lifecycle. [PDF]
Space Sci Rev, 2020 AbstractGiant molecular clouds (GMCs) and their stellar offspring are the building blocks of galaxies. The physical characteristics of GMCs and their evolution are tightly connected to galaxy evolution. The macroscopic properties of the interstellar medium propagate into the properties of GMCs condensing out of it, with correlations between e.g.
Chevance M +8 more
europepmc +5 more sources
Ice-nucleating particles in northern Greenland: annual cycles, biological contribution and parameterizations [PDF]
Atmospheric Chemistry and Physics, 2023 Ice-nucleating particles (INPs) can initiate ice formation in clouds at temperatures above −38 ∘C through heterogeneous ice nucleation. As a result, INPs affect cloud microphysical and radiative properties, cloud lifetime, and precipitation behavior and
K. C. H. Sze +7 more
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Nebula-Relay Hypothesis: The Chirality of Biological Molecules in Molecular Clouds
Frontiers in Astronomy and Space Sciences, 2022 The chiral puzzle of biological molecules is thought to be closely related to the origin of life and is still a mystery so far. Previously, we proposed a new model on the origin of life, Nebula-Relay hypothesis, which assumed that the life on Earth ...
Lei Feng, Lei Feng, Lei Feng
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12 CO, 13CO, AND C18 OBSERVATIONS TOWARD OMC-1 [PDF]
Journal of Astronomy and Space Sciences, 2002 Interstellar cabon monoxide and its isotopes were observed with the 13.7m radio telescope of the Daeduk Radio Astronomy Observatory toward Orion Molecular Cloud-1 (OMC-1).
Mun-Suk Chun +2 more
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Anatomy of Orion Molecular Clouds—The Astrochemistry Perspective/Approach
Frontiers in Astronomy and Space Sciences, 2021 The Orion molecular cloud (OMC) complex is the nearest and perhaps the best-studied giant molecular cloud complex within which low-mass and massive star formation occur. A variety of molecular species, from diatomic molecules to complex organic molecules
Dipen Sahu, Sheng-Yuan Liu, Tie Liu
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A Velocity Structure Analysis of Giant Molecular Cloud Associated with HII Region S152 [PDF]
Journal of Astronomy and Space Sciences, 2005 S152 is a small bright emission nebula located in the Perseus arm. Its optical diameter corresponds to 1.5 pc for an adopted distance 3.5 kpc. However, S152 is a part of a giant molecular cloud complex, which consists of several dense cores, containing ...
Woo-Yeol Choi +3 more
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THE CALIFORNIA MOLECULAR CLOUD [PDF]
The Astrophysical Journal, 2009 Accepted for publication in the ApJ. This submission has low resolution figures. Preprint with full resolution figures can be found at http://www.cfa.harvard.edu/~clada/pubs_html/California ...
C. J. Lada, M. Lombardi, J. F. Alves
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A Cloud-Scale View of the Molecular Gas Disk in the Whirlpool Galaxy and Beyond [PDF]
EPJ Web of Conferences, 2022 The nearby galaxy M51 (also known as the Whirlpool galaxy) hosts an iconic grand-design spiral pattern and both IRAM facilities conducted the first cloud-scale (∼50 pc resolution) survey of the molecular gas reservoir across a the disk of a massive star ...
Schinnerer Eva +8 more
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Particle and Fibre Toxicology, 2022 Background Exposure to air pollutants is one of the major environmental health risks faced by populations globally. Information about inhaled particle deposition dose is crucial in establishing the dose–response function for assessing health-related ...
Leizel Madueño +5 more
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Molecular line signatures of cloud–cloud collisions [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT Collisions between interstellar gas clouds are potentially an important mechanism for triggering star formation. This is because they are able to rapidly generate large masses of dense gas. Observationally, cloud collisions are often identified in position–velocity (PV) space through bridging features between intensity peaks ...
Priestley, F. D., Whitworth, A. P.
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