Results 21 to 30 of about 62,910 (265)

Biogenic, urban, and wildfire influences on the molecular composition of dissolved organic compounds in cloud water [PDF]

open access: yesAtmospheric Chemistry and Physics, 2017
Organic aerosol formation and transformation occurs within aqueous aerosol and cloud droplets, yet little is known about the composition of high molecular weight organic compounds in cloud water.
R. D. Cook   +19 more
doaj   +1 more source

Multi-line characterization of whole molecular clouds using stratified random sampling [PDF]

open access: yesEPJ 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
doaj   +1 more source

Triggering star formation: Experimental compression of a foam ball induced by Taylor–Sedov blast waves

open access: yesMatter and Radiation at Extremes, 2022
The interaction between a molecular cloud and an external agent (e.g., a supernova remnant, plasma jet, radiation, or another cloud) is a common phenomenon throughout the Universe and can significantly change the star formation rate within a galaxy. This
B. Albertazzi   +12 more
doaj   +1 more source

The LEGO Large Program: Constraining the Physics of Line Emission in Galaxy Observations [PDF]

open access: yesEPJ 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
doaj   +1 more source

Turbulence in Molecular Clouds [PDF]

open access: yesThe Astrophysical Journal, 1995
accepted in ApJ, compressed postscript, figures not included. Complete preprint available at http://ucowww.ucsc.edu/~dubinski/home.html or by request to dubinski@lick.ucsc ...
Dubinski, John   +2 more
openaire   +2 more sources

Atmospheric organic matter in clouds: exact masses and molecular formula identification using ultrahigh-resolution FT-ICR mass spectrometry [PDF]

open access: yesAtmospheric Chemistry and Physics, 2013
Clouds alter the composition of atmospheric aerosol by acting as a medium for interactions between gas- and particulate-phase substances. To determine the cloud water atmospheric organic matter (AOM) composition and study the cloud processing of aerosols,
Y. Zhao, A. G. Hallar, L. R. Mazzoleni
doaj   +1 more source

Giant Molecular Clouds in M31. I. Molecular Cloud Properties [PDF]

open access: yesThe Astrophysical Journal, 2007
We present Berkeley Illinois Maryland Association (BIMA) millimeter interferometer observations of giant molecular clouds (GMCs) along a spiral arm in M31. The observations consist of a survey using the compact configuration of the interferometer and follow-up, higher-resolution observations on a subset of the detections in the survey.
openaire   +2 more sources

Cloud-Based Software Architecture for Fully Automated Point-of-Care Molecular Diagnostic Device

open access: yesSensors, 2021
This paper proposes a cloud-based software architecture for fully automated point-of-care molecular diagnostic devices. The target system operates a cartridge consisting of an extraction body for DNA extraction and a PCR chip for amplification and ...
Byeong-Heon Kil   +5 more
doaj   +1 more source

Outer-Galaxy molecular clouds [PDF]

open access: yesSymposium - International Astronomical Union, 1985
Since our original report of CO emission from outside the solar circle in the first quadrant (Kutner and Mead, 1981) we have extended the observations in two ways: (1) We have improved latitude and longitude coverage. Preliminary results on the latitude distribution were reported by Kutner (1983).
Marc L. Kutner, Kathryn N. Mead
openaire   +1 more source

Molecular cloud evolution – VI. Measuring cloud ages [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2018
In previous contributions, we have presented an analytical model describing the evolution of molecular clouds (MCs) undergoing hierarchical gravitational contraction. The cloud's evolution is characterized by an initial increase in its mass, density, and star formation rate (SFR) and efficiency (SFE) as it contracts, followed by a decrease of these ...
Vázquez-Semadeni, Enrique   +3 more
openaire   +2 more sources

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