90 datasets found

Keywords: molecular physics

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  • 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...
  • 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...
  • OH and HI data in molecular clouds

    We have conducted a OH 18cm survey toward 141 molecular clouds in various environments, including 33 optical dark clouds, 98 Planck Galactic cold clumps (PGCCs), and 10 Spitzer...
  • Nobeyama molecular line survey of SCUBA-2 cores

    We present the results of a single-pointing survey of 207 dense cores embedded in Planck Galactic Cold Clumps distributed in five different environments ({lambda} Orionis, Orion...
  • Radio Ammonia Mid-plane Survey (RAMPS) pilot survey

    The Radio Ammonia Mid-Plane Survey (RAMPS) is a molecular line survey that aims to map a portion of the Galactic midplane in the first quadrant of the Galaxy (l=10{deg}-40{deg},...
  • Line positions for TiO singlet states

    A consistent set of spectroscopic constants for the a^1^{Delta}, d^1^{Sigma}^+^, b^1^{Pi}, c^1^{Phi}, and f^1^{Delta} states of ^48^Ti^16^O has been determined from analysis of...
  • IR absorbance spectra of CH4, C2H6, C3H8 & C4H10

    The only known phosphorus-containing organic compounds of extraterrestrial origin, alkylphosphonic acids, were discovered in the Murchison meteorite and have accelerated the...
  • Iso-propyl cyanide rotational study

    A detailed analysis of the rotational spectra of the interstellar iso-propyl cyanide has been carried out up to 480GHz using three different high-resolution spectroscopic...
  • ND_2_ rotational spectrum

    The deuteration mechanism of molecules in the interstellar medium is still being debated. Observations of deuterium-bearing species in several astronomical sources represent a...
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