611 datasets found

Keywords: H II regions

Filter Results
  • Near infrared view on PDRs

    We performed photometric observations of the S255, S257, S140, NGC7358 and the Orion Bar photo-dissociation regions (PDRs) at 2 micron using narrow-band filters centered on the...
  • Near infrared view on PDRs

    We performed photometric observations of the S255, S257, S140, NGC7358 and the Orion Bar photo-dissociation regions (PDRs) at 2 micron using narrow-band filters centered on the...
  • HII regions in NGC 6384

    The galaxy NGC6384 has been observed with an IPCS through H{alpha} and [NII] narrow-band interference filters for direct imagery with the 2.6-m Byurakan telescope. We studied...
  • Molecular clouds in 8<l<38, -1<b<+1

    A systematic comparison between molecular clouds in different evolutionary stages and processes of star formation is made over the range of 8{deg} to 38{deg} in Galactic...
  • Star-forming complex S254-S258 HII regions

    The S254-258 star-forming complex is a place of massive star formation where five OB-stars have created HII regions, visible as optical nebulae, and disrupted the parental...
  • CORNISH-South Survey and Catalogue

    We present the first high spatial resolution radio continuum survey of the southern Galactic plane. The CORNISH project has mapped the region defined by...
  • Cartwheel galaxy nebular abundances

    We here present the results from a detailed analysis of nebular abundances of commonly observed ions in the collisional ring galaxy Cartwheel using the Very Large Telescope...
  • High-mass star formation evolutionary trends

    ATLASGAL is an 870um dust survey of 420deg^2^ the inner Galactic plane and has been used to identify ~10000 dense molecular clumps. Dedicated follow-up observations and...
  • HII region emission-line fluxes analysis

    Studies of gas-phase radial metallicity profiles in spirals published in the last decade have diminished the importance of galactic bars as agents that mix and flatten 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...
  • Abundance determination in HII regions

    We use a sample of 154 observations of 124 HII regions that have measurements of both T_e_[OIII] and T_e_[NII], compiled from the literature, to explore the behaviour of the...
  • Star Forming Region IRAS12272-6240 JHK photometry

    IRAS 12272-6240 is a complex star-forming region with a compact massive dense clump (DC) and several associated masers, located at a well-determined distance of d=9.3kpc from...
  • 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...
  • New radio catalogue for M83 SNR and HII regions

    We present a new catalogue of radio sources in the face-on spiral galaxy M83. Radio observations taken in 2011, 2015, and 2017 with the Australia Telescope Compact Array at 5.5...
  • Crystalline silicate absorption at 11.1{mu}m

    Utilizing several instruments on 4-8m telescopes, we have observed a large sample of objects in the mid-infrared (8-13{mu}m). These comprise a few evolved stars, multiple...
  • Ultracompact HII regions extended emission

    In this paper, we present the results of a morphological study performed on a sample of 28 ultracompact HII (UC HII) regions located near extended free-free emission, using...
  • Extended sources in SCORPIO at 2.1GHz

    We present a catalogue of a large sample of extended radio sources in the Stellar Continuum Originating from Radio Physics In Ourgalaxy (SCORPIO) field, observed and resolved by...
  • 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...
  • Gaia-DR2 distance to the W3 Complex

    The Perseus Arm is the closest Galactic spiral arm from the Sun, offering an excellent opportunity to study in detail its stellar population. However, its distance has been...
  • Massive SFR beyond the solar circle

    We have compiled the most complete compact and ultracompact HII region catalogue to date via multi-wavelength inspection of survey data. We utilise data from the recently...
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