The Mopra Southern Galactic Plane CO Survey—Data Release 3

Author:

Braiding Catherine,Wong G. F.,Maxted N. I.,Romano D.,Burton M. G.,Blackwell R.,Filipović M. D.,Freeman M. S. R.,Indermuehle B.ORCID,Lau J.,Rebolledo D.,Rowell G.,Snoswell C.,Tothill N. F. H.,Voisin F.,de Wilt P.

Abstract

AbstractWe present observations of 50 deg2 of the Mopra carbon monoxide (CO) survey of the Southern Galactic Plane, covering Galactic longitudes l = 300–350° and latitudes |b| ⩽ 0.5°. These data have been taken at 0.6 arcmin spatial resolution and 0.1 km s−1spectral resolution, providing an unprecedented view of the molecular clouds and gas of the Southern Galactic Plane in the 109–115 GHz J = 1–0 transitions of 12CO, 13CO, C18O, and C17O.We present a series of velocity-integrated maps, spectra, and position-velocity plots that illustrate Galactic arm structures and trace masses on the order of ~106 M deg−2, and include a preliminary catalogue of C18O clumps located between l = 330–340°. Together with the information about the noise statistics of the survey, these data can be retrieved from the Mopra CO website and the PASA data store.

Publisher

Cambridge University Press (CUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

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