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Sökning: WFRF:(Schinnerer Eva) > Chalmers tekniska högskola

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1.
  • Brunetti, Nathan, et al. (författare)
  • Highly turbulent gas on GMC scales in NGC 3256, the nearest luminous infrared galaxy
  • 2021
  • Ingår i: Monthly Notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 500:4, s. 4730-4748
  • Tidskriftsartikel (refereegranskat)abstract
    • We present the highest resolution CO (2-1) observations obtained to date (0.25 arcsec) of NGC 3256 and use them to determine the detailed properties of the molecular interstellar medium in the central 6 kpc of this merger. Distributions of physical quantities are reported from pixel-by-pixel measurements at 55 and 120 pc scales and compared to disc galaxies observed by PHANGS-ALMA (Physics at High Angular resolution in Nearby GalaxieS with Atacama Large Millimeter/Submillimeter Array). Mass surface densities range from 8 to 5500 M-circle dot pc(-2) and velocity dispersions from 10 to 200 km s(-1). Peak brightness temperatures as large as 37 K are measured, indicating the gas in NGC 3256 may be hotter than all regions in nearby disc galaxies measured by PHANGS-ALMA. Brightness temperatures even surpass those in the overlap region of NGC 4038/9 at the same scales. The majority of the gas appears unbound with median virial parameters of 7-19, although external pressure may bind some of the gas. High internal turbulent pressures of 10(5)-10(10) K cm(-3) are found. Given the lack of significant trends in surface density, brightness temperature, and velocity dispersion with physical scale we argue the molecular gas is made up of a smooth medium down to 55 pc scales, unlike the more structured medium found in the PHANGS-ALMA disc galaxies.
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2.
  • Schinnerer, Eva, et al. (författare)
  • The Molecular Gas in the Whirlpool Galaxy
  • 2011
  • Ingår i: Bulletin of the American Astronomical Society. ; 43:Jan, s. 246.11-
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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