搜索结果: 91-105 共查到“理学 cloud”相关记录375条 . 查询时间(0.084 秒)
Survey of O VI absorption in the Large Magellanic Cloud
galaxies ISM – ISM structure – ISM atoms – galaxies individual Large Magellanic Cloud – ultraviolet ISM
2010/11/10
We present a survey of interstellar O VI absorption in the Large Magellanic Cloud (LMC) towards 70 lines of sight based on Far Ultraviolet Spectroscopic Explorer(FUSE) observations. The survey covers ...
Effects of Initial Condition and Cloud Density on the Composition of the Grain Mantle
Molecular clouds ISM abundances molecules chemical evo-lution Monte-Carlo simulations
2010/11/15
Evolution of grain mantles in various interstellar environment is studied. We concentrate mainly on water, methanol, carbon di-oxide, which constitute nearly 90% of the grain mantle. We investigate ho...
New Panoramic View of $^{12}$CO and 1.1 mm Continuum Emission in the Orion A Molecular Cloud. I. Survey Overview and Possible External Triggers of Star Formation
Galaxy Astrophysics (astro-ph.GA)
2011/1/6
We present new, wide and deep images in the 1.1 mm continuum and the $^{12}$CO ($J$=1-0) emission toward the northern part of the Orion A Giant Molecular Cloud (Orion-A GMC). The 1.1 mm data were take...
Spectroscopic [CI] mapping of the infrared dark cloud G48.65-0.29
Galaxy Astrophysics (astro-ph.GA)
2011/1/7
We report the first spectroscopic mapping of an atomic carbon line in an infrared dark cloud (IRDC).
Enhanced Core Formation Rate in a Turbulent Cloud by Self-gravity
Galaxy Astrophysics (astro-ph.GA)
2011/1/5
We performed a numerical experiment designed for core formation in a self-gravitating, magnetically supercritical, supersonically turbulent, isothermal cloud. A density probability distribution functi...
Using archival Spitzer Space Telescope data, we identified for the first time a dozen runaway OB stars in the Small Magellanic Cloud (SMC) through the detection of their bow shocks. The geometry of de...
The Molecular Outflows in the rho Ophiuchi Main Cloud: Implications For Turbulence Generation
Solar and Stellar Astrophysics (astro-ph.SR) Galaxy Astrophysics (astro-ph.GA)
2010/12/29
We present the results of CO (J=3-2) and CO (J=1-0) mapping observations toward the active cluster forming clump, L1688, in the rho Ophiuchi molecular cloud.
Laboratory simulation for the aqueous OH-oxidation of methyl vinyl ketone and methacrolein: significance to the in-cloud SOA production
Laboratory simulation the aqueous OH-oxidation methyl vinyl ketone the in-cloud SOA production
2010/10/11
Increasing evidence suggests that secondary organic aerosol (SOA) is formed through aqueous phase reactions in atmospheric clouds. In the present study, the aqueous oxidation of methyl vinyl ketone (M...
Testing remote sensing on artificial observations: impact of drizzle and 3-D cloud structure on effective radius retrievals
remote sensing artificial observations drizzle and 3-D cloud structure effective radius retrievals
2010/10/11
We investigate two types of marine cloud situations each with and without drizzle from LES simulations: (1) a typical daytime stratocumulus deck at two times in the diurnal cycle and (2) one scene wit...
A candidate protostellar object in the L1457 / MBM12 cloud
Galaxy Astrophysics (astro-ph.GA)
2010/12/23
The association of young T Tauri stars, MBM12A, indicates that L1457 was forming stars not too long ago. With our study we want to find out whether or not there are still signs for ongoing star format...
A Unified Theory for the Effects of Stellar Perturbations and Galactic Tides on Oort Cloud Comets
Earth and Planetary Astrophysics (astro-ph.EP)
2010/12/23
We examine the effects of passing field stars on the angular momentum of a nearly radial orbit of an Oort cloud comet bound to the Sun. We derive the probability density function (PDF) of the change i...
History and modes of star formation in the most active region of the Small Magellanic Cloud, NGC 346
Galaxy Astrophysics (astro-ph.GA)
2010/12/23
We discuss the star formation history of the SMC region NGC 346 based on Hubble Space Telescope images. The region contains both field stars and cluster members. Using a classical synthetic CMD proced...
Novel method of generation of Ca(HCO3)2 and CaCO3 aerosols and first determination of hygroscopic and cloud condensation nuclei activation properties
Ca(HCO3)2 and CaCO3 aerosols hygroscopic and cloud condensation nuclei activation properties
2010/9/21
Atmospheric mineral aerosols contain CaCO3 as a reactive component. A novel method to produce CaCO3 aerosol was developed by spraying Ca(HCO3)2 solution, which was generated from a CaCO3 suspension an...
Intercomparison of aerosol-cloud-precipitation interactions in stratiform orographic mixed-phase clouds
aerosol-cloud-precipitation stratiform orographic mixed-phase clouds
2010/9/14
This study presents results from a model intercomparison of 2-D simulations of aerosol-cloud-precipitation interactions in stratiform orographic mixed-phase clouds. The sensitivity of orographic preci...
Chemical composition of ambient aerosol, ice residues and cloud droplet residues in mixed-phase clouds: single particle analysis during the Cloud and Aerosol Characterization Experiment (CLACE 6)
ambient aerosol ice residues cloud droplet residues the Cloud and Aerosol Characterization Experiment
2010/9/14
The mass spectra were binned in classes, based on the combination of dominating substances, such as mineral dust, sulfate, potassium and elemental carbon or organic material. The derived chemical info...