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Author (up) Antilen, J.; Casassus, S.; Cieza, L.A.; Gonzalez-Ruilova, C. doi  openurl
  Title Gas distribution in ODISEA sources from ALMA long-baseline observations in (CO)-C-12(2-1) Type
  Year 2023 Publication Monthly Notices Of The Royal Astronomical Society Abbreviated Journal Mon. Not. Roy. Astron. Soc.  
  Volume 522 Issue 2 Pages 2611-2627  
  Keywords protoplanetary discs; circumstellar matter; submillimetre: planetary systems  
  Abstract The (CO)-C-12 rotational lines in protoplanetary discs are good tracers of the total spatial extension of the gas component, and potentially planet-disc interactions. We present ALMA long baseline observations of the (CO)-C-12(2-1) line of 10 protoplanetary discs from the Ophiuchus DIsc Survey Employing ALMA (ODISEA) project, aiming to set constraints on the gas distribution of these sources. The position angle of the gaseous disc can be inferred for five sources using high-velocity channels, which trace the gas in the inner part of the disc. We compare the high-velocity PAs to the orientations inferred from the continuum, representative of the orientation over similar to 53 to 256 au in these resolved discs. We find a significant difference in orientation for DoAr 44, which is evidence of a tilted inner disc. Eight discs show evidence of gas inside inner dust cavities or gaps, and the disc of ISO-Oph 196 is not detected in (CO)-C-12(2-1), except for the compact signal located inside its dust cavity. Our observations also point out a possible outflow in WLY 2-63.  
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  ISSN 0035-8711 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000983364800004 Approved  
  Call Number UAI @ alexi.delcanto @ Serial 1822  
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