نتایج جستجو برای: 12co
تعداد نتایج: 317 فیلتر نتایج به سال:
In this paper, the residual stress of thermal spray coatings in gas turbine component by curvature method has been studied. The samples and shaft were coated by hard WC-12Co cermets using high velocity oxy fuel (HVOF) after preparation in same conditions. The curvature of coated samples was measured by using of coordinate measurement machine (CMM). The metallurgical and Tribological studies has...
Context. Previous Spitzer and IRAS observations of the LMC suggest an excess of FIR emission with respect to the gas surface density traced by 12CO rotational emission lines and H i 21 cm emission. This so-called “FIR excess” is especially noticeable near molecular clouds in the LMC, and has usually been interpreted as indicating the presence of a self-shielded H2 component not traced by CO in ...
ABSTRACT We present ALMA band 6 images of the 12CO, 13CO, and C18O J = 2-1 line emissions for circumstellar disc around HD 169142, at ?8 au spatial resolution. resolve a central gas-depleted cavity, along with two independent near-symmetric ring-like structures in emission: well-defined inner gas ring [?25 au] second relatively fainter diffuse outer [?65 au]. identify localized super-Keplerian ...
In the group of B stars with spectroscopic peculiarities, we can find Be and B[e] stars. The are early-type rapid rotators that present, as their principal characteristic, emission lines hydrogen singly ionized metals due to presence a gaseous envelope. present in spectra heterogeneous features reveal regions very different properties dusty Our goal is study evolution disks around peculiar thro...
We present high spatial resolution (0.4 arcsec, 3.5 kpc) Plateau de Bure Interferometer interferometric data on three ultraluminous infrared galaxies (ULIRGs) at z ∼ 2: two submillimetre galaxies (SMGs) and one submillimetre faint star-forming radio galaxy. The three galaxies have been robustly detected in CO rotational transitions, either 12CO (J = 4→3) or 12CO (J = 3→2), allowing their sizes ...
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