Results 21 to 30 of about 351,916 (340)
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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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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Multi-line characterization of whole molecular clouds using stratified random sampling [PDF]
EPJ Web of Conferences, 2022 We have developed a new technique to characterize the multi-line emission from molecular clouds using statistical sampling. Our method uses available extinction maps to select a relatively small sample of cloud positions that cover the full range of ...
Tafalla Mario +2 more
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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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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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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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The LEGO Large Program: Constraining the Physics of Line Emission in Galaxy Observations [PDF]
EPJ Web of Conferences, 2022 The IRAM Large Program LEGO studies molecular clouds in the Milky Way to constrain the physics controlling molecular line emission in galaxies. This is done by imaging two dozen clouds with setups that provide continuous spectral coverage of about 85–115
Kauffmann Jens, Barnes Ashley
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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
openaire +3 more sources
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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