https://publications-cnrc.canada.ca/fra/voir/objet/?id=e193d700-5418-4d25-b51d-07d1833cf4bf
Monthly Notices of the Royal Astronomical Society, Oxford Academic, 11 juin 2021, Volume : 506, Numéro : 1
We observe the density wave's angular pattern speed Ωp to be near 12–17 km s⁻¹ kpc⁻¹, by the separation between a typical optical H II region (from the spiral...
Article de périodique (revue)