794 datasets found

Keywords: molecular clouds

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  • 350{mu}m molecular line survey of Orion KL

    With the Caltech Submillimeter Observatory, we have carried out an unbiased spectral line survey of Orion KL throughout the 350{mu}m band (from 795 to 903GHz). This is the first...
  • Giant molecular clouds in M33

    We present the first interferometric ^12^CO (J=1->0) map of the entire H{alpha} disk of M33. The 13" diameter synthesized beam corresponds to a linear resolution of 50pc,...
  • O VI in the galactic halo

    Far-Ultraviolet Spectroscopic Explorer (FUSE) spectra of 100 extragalactic objects and two distant halo stars are analyzed to obtain measures of O VI {lambda}{lambda}1031.93,...
  • O VI absorption in FUSE survey

    We present Far Ultraviolet Spectroscopic Explorer (FUSE) observations of the O VI {lambda}{lambda}1031.926, 1037.617 absorption lines associated with gas in and near the Milky...
  • Distances and metallicities of HVCs and IVCs

    A table is presented that summarizes published absorption line measurements for the high- and intermediate-velocity clouds (HVCs and IVCs). New values are derived for N(HI) in...
  • Cepheus flare molecular clouds

    Results of an objective prism Schmidt survey are combined with IRAS survey data in order to assess the star-forming activity in the Cepheus Flare, a nearby giant molecular cloud...
  • CO survey toward SMC north with ACA. II. CO clouds

    The nature of molecular clouds and their statistical behavior in subsolar metallicity environments are not fully explored yet. We analyzed data from an unbiased CO(J=2-1) survey...
  • High-mass starless clumps from ATLASGAL & SEDIGISM

    In order to study the initial conditions of massive star formation, we have previously built a sample of 463 high-mass starless clumps (HMSCs) across the inner Galactic plane...
  • ASHES. VIII. Dynamics of embedded dense cores

    We present dynamical properties of 294 cores embedded in twelve IRDCs observed as part of the ASHES Survey. Protostellar cores have higher gas masses, surface densities, column...
  • Stellar contents in the Sh2-112 cloud complex

    We present the star formation activity around the emission nebula Sh2-112. At a distance of ~2.1kpc, this HII complex, itself 3pc in radius, is illuminated by the massive star...
  • CO molecular clumps and YSOs in NGC 602 region

    NGC 602 is a young, low-metallicity star cluster in the "Wing" of the Small Magellanic Cloud. We reveal the recent evolutionary past of the cluster through analysis of...
  • Chandra obs. of the Trifid region & ARCoIRIS sp.

    The dynamical states of molecular clouds may affect the properties of the stars they form. In the vicinity of the Trifid Nebula (d=1180+/-25pc), the main star cluster (Trifid...
  • ALMA CO obs. of the 30 Dor molecular cloud complex

    We present results of a wide-field (approximately 60x90pc) Atacama Large Millimeter/submillimeter Array mosaic of CO(2-1) and ^13^CO(2-1) emission from the molecular cloud...
  • The VANDAM survey of Orion protostars. V. Mult.

    We characterize protostellar multiplicity in the Orion molecular clouds using Atacama Large Millimeter/submillimeter Array 0.87mm and Very Large Array 9mm continuum surveys...
  • Molecular clouds from NOEMA CO(1-0) obs. in M82

    We present a 154 pointing IRAM NOEMA mosaic of the CO(1-0) line emission in and around the nearby starburst galaxy M82. The observations, complemented by zero-spacing...
  • Core kinematics in the Dragon IRDC from ALMA

    A sample of 1.3mm continuum cores in the Dragon infrared dark cloud (also known as G28.37+0.07 or G28.34+0.06) is analyzed statistically. Based on their association with...
  • HST 1.60um & 2.05um images of protostars in Orion

    We study protostellar envelope and outflow evolution using Hubble Space Telescope NICMOS or WFC3 images of 304 protostars in the Orion molecular clouds. These near-IR images...
  • Molecular gas distribution from MWISP CO survey

    We use the ~370deg^2^ data from the MWISP CO survey to study the vertical distribution of the molecular clouds (MCs) toward the tangent points in the region of...
  • Chandra obs. of IRDCs G034.43+00.24 and G035.39-00.33

    We present a high spatial resolution Chandra X-ray study of two infrared dark clouds (IRDCs), G034.43+00.24 and G035.39-00.33, which are expected to be in the early phases of...
  • Optical and NIR polarimetry in Taurus

    The optical and near-infrared (OIR) polarization of starlight is typically understood to arise from the dichroic extinction of that light by dust grains whose axes are aligned...
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