Survey of Orion Disks with ALMA (SODA) III: Disks in wide binary systems in L1641 and L1647
- Autor(en)
- Giulia Ricciardi, Sierk E. van Terwisga, Veronica Roccatagliata, Alvaro Hacar, Thomas Henning, Walter Del Pozzo
- Abstrakt
Aims. The goal of this work is to comprehensively characterize theimpact of stellar multiplicity on Class II disks in the L1641 and L1647regions of Orion A (~1-3 Myr), part of the Survey of Orion Disks withALMA (SODA). We characterize the protostellar multiplicity using theAtacama Large Millimeter/submillimeter Array (ALMA), the ESO-VISTA, andHubble Space telescopes. The resulting sample of 65 multiple systemsrepresents the largest catalogue of wide binary systems to date(projected separation >1000 AU), allowing a more robust statisticalcharacterization of the evolution and properties of protoplanetarydisks. Methods. The disk population was observed in continuum with ALMAat 225 GHz, with a median rms of 1.5 Mearth. Combining these data(resolution ~1.1arcsec ) with the ESO-VISTA near-infrared survey of theOrion A cloud (resolution ~0.7arcsec ), multiple systems are assembledand selected by an iterative inside-out search in projected separation(>1000 AU). Results. We identify 61 binary systems, 3 triple systems,and one quadruple system. The separation range is between 1000 and 10^4AU. The dust mass distributions inferred with the Kaplan-Meier estimatoryield a median mass of 3.23+0.6-0.4 Mearth for primary disks and3.88+0.3-0.3 Mearth for secondary disks.
- Organisation(en)
- Institut für Astrophysik
- Externe Organisation(en)
- European Southern Observatory (Germany), Max-Planck-Institut für Astronomie, Università degli Studi di Pisa, Österreichische Akademie der Wissenschaften (ÖAW), Università di Bologna, INFN Sezione di Pisa
- Journal
- Astronomy & Astrophysics
- Band
- 695
- Anzahl der Seiten
- 17
- ISSN
- 0004-6361
- DOI
- https://doi.org/10.1051/0004-6361/202452287
- Publikationsdatum
- 09-2024
- Peer-reviewed
- Ja
- ÖFOS 2012
- 103003 Astronomie, 103004 Astrophysik
- Schlagwörter
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/f1e25b69-f13f-459c-bead-493d62704977