742 datasets found

Keywords: Molecular clouds

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  • Molecular Clumps & Cores with Infall Signatures

    The research of infall motion is a common means to study molecular cloud dynamics and the early process of star formation. Many works had been done in-depth research on infall....
  • Molecular clumps CO, HCO and HCN data

    Gravitational accretion accumulates the original mass. This process is crucial for us to understand the initial phases of star formation. Using the specific infall profiles in...
  • CO emission towards Southern dark clouds

    Using the 22-m 'Mopra' antenna (near Coonabarabran, NSW) of the Australia Telescope National Facility (ATNF), we have observed emission from the 115-GHz J=1-0 transition of CO...
  • Cores detected at 1.3mm in W43-MM1

    Understanding the processes that determine the stellar initial mass function (IMF) is a critical unsolved problem, with profound implications for many areas of astrophysics. 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...
  • Deuterium in L1688 cold dense cores

    In this work, we study deuterium fractionation in four starless cores in the low-mass star-forming region L1688 in the Ophiuchus molecular cloud. We study how the deuterium...
  • NGTS clusters survey. IV.

    The dipper is a novel class of young stellar object associated with large drops in flux on the order of 10-50 per cent lasting for hours to days. Too significant to arise from...
  • Magnetic field of L1495/B211

    We present the stability analysis of two regions, OMC-3 and OMC-4, in the massive and long molecular cloud complex of Orion A. We obtained 214um HAWC+/SOFIA polarization data,...
  • Star formation in the clumps of the NAN complex

    The processes that regulate star formation within molecular clouds are still not well understood. Various star formation scaling relations have been proposed as an explanation,...
  • SSEDIGISM-ATLASGAL in Galactic disc

    By combining two surveys covering a large fraction of the molecular material in the Galactic disc, we investigate the role spiral arms play in the star formation process. We...
  • The SEDIGISM survey: molecular clouds

    We use the ^13^CO(2-1) emission from the SEDIGISM (Structure, Excitation, and Dynamics of the Inner Galactic InterStellar Medium) high-resolution spectral-line survey of the...
  • Pressure components in the central HII regions

    Supernovae (SNe) dominate the energy and momentum budget of stellar feedback, but the efficiency with which they couple to the interstellar medium (ISM) depends strongly on how...
  • Role of galactic dynamics in shaping GMCs

    We examine the role of the large-scale galactic-dynamical environment in setting the properties of giant molecular clouds in Milky Way-like galaxies. We perform three...
  • Distances to molecular clouds in fourth quadrant

    Distance measurements to molecular clouds are essential and important. We present directly measured distances to 169 molecular clouds in the fourth quadrant of the Milky Way....
  • Accretion history of massive stars

    The mass growth of protostars is a central element to the determination of fundamental stellar population properties such as the initial mass function. Constraining the...
  • ATOMS II Compact objects in ACA observations

    We report studies of the relationships between the total bolometric luminosity (L_bol_ or L_TIR_) and the molecular line luminosities of J=1-0 transitions of H^13^CN,...
  • ATOMS I Description and a first look at G9.62+0.19

    The ATOMS, standing for ALMA Three-millimeter Observations of Massive Star-forming regions, survey has observed 146 active star-forming regions with ALMA band 3, aiming to...
  • Properties of giant molecular clouds in NGC 1300

    Star formation activity depends on galactic-scale environments. To understand the variations in star formation activity, comparing the properties of giant molecular clouds...
  • A large catalogue of molecular clouds

    We present a large, homogeneous catalogue of molecular clouds within 4kpc from the Sun at low Galactic latitudes (|b|<10{deg}) with unprecedented accurate distance...
  • Milky Way Project DR2 bubbles & bow shocks

    Citizen science has helped astronomers comb through large data sets to identify patterns and objects that are not easily found through automated processes. The Milky Way Project...
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