نتایج جستجو برای: 12co
تعداد نتایج: 317 فیلتر نتایج به سال:
We report the detection of a deep (C I) absorption feature at km s~1 with a line 3P1] 3P0 vLSR \ 12 width of 6 km s~1 toward extended line emission at a distance of 11@ from Sgr C. The 492 GHz observations were made with the Antarctic Submillimeter Telescope and Remote Observatory. The absorption feature allows the derivation of lower limits for the C I column density in the cold foreground mat...
We present ALMA data on the 3mm continuum emission, CO isotopologues (12CO, 13CO, C18O), and high-density molecular tracers (HCN, HCO+, HNC, HNCO, CS, CN, CH3OH) in NGC4526. These enable a detailed study of physical properties gas longtime resident Virgo Cluster; comparisons to more commonly-studied spiral galaxies offer intriguing hints into processing cluster environment. Many line ratios NGC...
We present an XMM-Newton observation of the long-overlooked radio source G350.1–0.3. The X-ray spectrum of G350.1–0.3 can be fit by a shocked plasma with two components: a high-temperature (1.5 keV) region with a low ionization time scale and enhanced abundances, plus a cooler (0.36 keV) component in ionization equilibrium and with solar abundances. The X-ray spectrum and the presence of non-th...
We present sub-arcsecond, Multi-Element Radio Linked Interferometer (MERLIN) observations of the decimetre radio continuum structure and neutral hydrogen (H) absorption from the nuclear region of the starburst galaxy NGC 4194 (the Medusa Merger). The continuum structure of the central kiloparsec of the Medusa has been imaged, revealing a pair of compact radio components surrounded by more diff...
Aims. We investigate the physical properties and spatial distribution of Carbon Monoxide (CO) gas in the disks around the Herbig Ae/Be stars HD 97048 and HD 100546. Methods. Using high-spectral-resolution 4.588−4.715 μm spectra containing fundamental CO emission taken with CRIRES on the VLT, we probe the circumstellar gas and model the kinematics of the emission lines. By using spectro-astromet...
Aims. We present X-ray and 12CO(J=1–0) observations of the very-high-energy (VHE) γ-ray source HESS J1813–178 with the aim of understanding the origin of the γ-ray emission. Methods. High-angular resolution X-ray studies of the VHE γ-ray emission region are performed using 18.6 ks of XMM-Newton data, taken on HESS J1813–178 in October 2005. Using this dataset we are able to undertake spectral a...
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