79 datasets found

Keywords: molecular physics

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  • UVES and FEROS sp. of HD 80077 and HD 166734

    The paper suggests the presence of the carbon chain C_5_ molecule in translucent, interstellar HI clouds. This species, the only five atom interstellar molecule, observable in...
  • High-mass star forming clumps from MALT90

    A total of 197 relatively isolated high-mass star-forming clumps were selected from the Millimeter Astronomy Legacy Team 90GHz (MALT90) survey data and their global chemical...
  • PAHs bands in starburst-dominated galaxies

    Polycyclic aromatic hydrocarbons (PAHs) are of great astrochemical and astrobiological interest due to their potential to form prebiotic molecules. We analyse the 7.7 and...
  • WISDOM Project IX study of GMCs in NGC 4429

    We present high spatial resolution (~= 12 pc) Atacama Large Millimeter/submillimeter Array 12CO(J = 3-2) observations of the nearby lenticular galaxy NGC 4429. We identify 217...
  • Deuterated methanol in comet 67P/C-G

    Deuterated methanol is one of the most robust windows astrochemists have on the individual chemical reactions forming deuterium-bearing molecules and the physicochemical history...
  • LEGO II. 3mm molecular line study

    The current generation of (sub)mm-telescopes have allowed molecular line emission to become a major tool for studying the physical, kinematic, and chemical properties of...
  • Molecular gas distribution and star formation

    We study the spatially resolved star formation history (SFH) and molecular gas distribution of 58 nearby galaxies, using integral field spectroscopy from the CALIFA survey and...
  • ATLASGAL dense clumps Molecular parameters

    We have conducted a 3-mm molecular-line survey towards 570 high-mass star-forming clumps, using the Mopra telescope. The sample is selected from the 10000 clumps identified by...
  • TMRT Ka-band (26.1-35GHz) obs. of Orion-KL

    We conducted a Ka-band (26.1-35GHz) line survey toward Orion KL using the TianMa 65m Radio Telescope (TMRT). It is the first blind line survey in the Ka band and achieves a...
  • IRAM 3mm, 2mm & 1.3mm obs. of star-forming regions

    We carried out a spectral line survey of CH3OH toward a large sample of 175 high-mass star-forming regions in the 3mm, 2mm, and 1.3mm bands with the Institut de Radioastronomie...
  • HC3N & N2H+ obs. toward 61 ultracompact HII regions

    We conducted observations of multiple HC_3_N (J=10-9, 12-11, and 16-15) lines and the N_2_H^+^ (J=1-0) line toward a large sample of 61 ultracompact (UC) HII regions, through...
  • A CO survey of the entire northern sky

    We present a very large extension of the Galactic plane CO survey of Dame+ (2001ApJ...547..792D) to the entire northern sky ({delta}>-17{deg}). The extension was carried out...
  • Column density maps for MWISP ^13^CO mol. clouds

    We have obtained column density maps for an unbiased sample of 120 molecular clouds in the third quadrant of the Milky Way midplane (b<=|5|{deg}) within the Galactic...
  • NH_3_ transitions detections toward W51 IRS2

    A four-epoch monitoring program spanning ~three months (from 2020-January-8 to April-7) for ammonia, water, and methanol transitions toward the high-mass star-forming region W51...
  • Cold molecular gas in merger remnants. II.

    We present the 3mm wavelength spectra of 28 local galaxy merger remnants obtained with the Large Millimeter Telescope. Sixteen molecular lines from 14 different molecular...
  • NH3 isotope ratios of Galactic disk sources

    Our aim is to measure the interstellar ^14^N/^15^N ratio across the Galaxy, to establish a standard data set on interstellar ammonia isotope ratios, and to provide new...
  • MAPS III. Radial chemical substructures toward 5 stars

    The Molecules with ALMA at Planet-forming Scales (MAPS) Large Program provides a detailed, high-resolution (~10-20au) view of molecular line emission in five protoplanetary...
  • Nobeyama mapping survey of SCUBA-2 cores

    We present the results of on-the-fly mapping observations of 44 fields containing 107 SCUBA-2 cores in the emission lines of molecules N_2_H^+^, HC_3_N, and CCS at 82-94GHz...
  • Planck Cold Clumps in the lambda Orionis complex. III.

    Massive stars have a strong impact on their local environments. However, how stellar feedback regulates star formation is still under debate. In this context, we studied the...
  • BAT AGN Spectroscopic Survey. XX. Molecular gas

    We present the host-galaxy molecular gas properties of a sample of 213 nearby (0.01<z<0.05) hard-X-ray-selected active galactic nucleus (AGN) galaxies, drawn from the...
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