780 datasets found

Keywords: molecular clouds

Filter Results
  • Spiral structure of the Milky Way

    We have updated the catalogs of Galactic HII regions, giant molecular clouds (GMCs), and 6.7-GHz methanol masers to outline the spiral structure of our Galaxy. The related...
  • Massive stars in two giant molecular clouds

    Young massive stars and stellar clusters continuously form in the Galactic disk, generating new HII regions within their natal giant molecular clouds and subsequently enriching...
  • CB17 dust emission (100-500um), N(H) and T maps

    The initial conditions for the gravitational collapse of molecular cloud cores and the subsequent birth of stars are still not well constrained. The characteristic cold...
  • Cygnus-X CO and SiO outflows datacubes

    We present the results from a PdBI study of six massive dense cores in Cygnus-X, with CO (2-1) and SiO (2-1) emission. We studied the outflows of the individual protostars with...
  • H{alpha} emission-line stars in M42

    We present a deep survey of H-alpha emission-line stars in the M42 region using wide-field objective prism films. A total of 1699 H{alpha} emission-line stars were identified,...
  • Molecular lines in 4 IRCS clumps

    The earliest phases of high-mass star formation are poorly understood. Aims. Our goal is to determine the physical conditions and kinematic structure of massive starforming...
  • ATLASGAL massive clumps CO depletion

    In the low-mass regime, molecular cores have spatially resolved temperature and density profiles allowing a detailed study of their chemical properties. It is found that the...
  • 4 IRDC data cubes

    How molecular clouds form out of the atomic phase and what the relative fractions of carbon are in the ionized, atomic, and molecular phase are questions at the heart of cloud...
  • Vibrationally excited vinyl cyanide in Orion-KL

    Laboratory characterization (18-1893 GHz) and astronomical detection (IRAM-30m: 80-280GHz, Orion-KL) of CH_2_CHCN (vinyl cyanide) in its ground and vibrationally excited states....
  • Intensity maps in the star-forming complex W33

    The object W33 is a giant molecular cloud that contains star forming regions at various evolutionary stages from quiescent clumps to developed HII regions. Since its star...
  • Magnetic field structure around cores with VeLLOs

    We carried out optical polarimetry of five dense cores, (IRAM 04191, L1521F, L328, L673-7, and L1014) which are found to harbour very low luminosity objects (VeLLOs;...
  • Dense cores in L1495/B213 complex

    Cloud fragmentation into dense cores is a critical step in the process of star formation. A number of recent observations show that it is connected to the filamentary structure...
  • Photodissociation with mechanical heating

    CO observations in active galactic nuclei and starbursts reveal high kinetic temperatures. Those environments are thought to be very turbulent due to dynamic phenomena, such as...
  • SPIRE 250um maps of 4 molecular clouds

    Column-density maps of molecular clouds are one of the most important observables in the context of molecular cloud- and starformation (SF) studies. With the Herschel satellite...
  • Deuteration in massive star formation process

    An ever growing number of observational and theoretical evidence suggests that the deuterated fraction (column density ratio between a species containing D and its hydrogenated...
  • M17-SW datacubes in C and CO lines

    We probe the column densities and masses traced by the ionized [CII] and neutral [CI] atomic carbon with spectrally resolved maps, and compare them to the diffuse and dense...
  • Barnard 1b-N and 1b-S nascent bipolar outflows

    In the theory of star formation, the first hydrostatic core (FHSC) phase is a critical step in which a condensed object emerges from a prestellar core. This step lasts about one...
  • Gas and dust in the star-forming region rho OphA

    Using mapping observations of the very dense rho Oph A core, we examined standard 1D and non-standard 3D methods to analyse data of far-infrared and submillimeter continuum...
  • Column density maps in 4 IRDCs

    We analyse column density and temperature maps derived from Herschel dust continuum observations of a sample of prominent, massive infrared dark clouds (IRDCs) i.e. G11.11-0.12,...
  • 3mm molecular line survey of 8 AGN

    We aim for a better understanding of the imprints that the nuclear activity in galaxies leaves in the molecular gas. We used the IRAM 30m telescope to observe the frequency...
You can also access this registry using the API (see API Docs).