{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/127190"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/127190","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Observations of protostellar systems across sub/millimeter wavelengths in nearby molecular clouds","abstract":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-03-28 without embargo terms","abstract_html":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-03-28 without embargo terms","abstract_has_math":false,"creators":["Encalada, Francisco Jose"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Astronomy","degree_department":null,"school":null,"contributors":["Looney, Leslie W","Gammie, Charles F","Vieira, Joaquin","Wong, Tony"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2024,"date_issued":"2024-11-18","date_published":"2024-11-18","updated_at":"2026-07-22T22:25:03Z","subjects":["Astronomy","Astrophysics","Disks","Protostellar Disks","Circumbinary Disks","Circumstellar Disk","Yso","Young Stellar Objects","Alma","Sofia","Ophiuchus","Orion","Class 0","Class I","R Cra Iras 32","Hops","Iras 16293-2422"],"languages":["en","eng"],"rights":["Copyright 2024 Francisco Jose Encalada"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/127190","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Looney, Leslie W","Gammie, Charles F","Vieira, Joaquin","Wong, Tony"]},{"key":"dc:creator","label":"Author","values":["Encalada, Francisco Jose"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2024-11-18","2024-12"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Astronomy"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Astronomy","Astrophysics","Disks","Protostellar Disks","Circumbinary Disks","Circumstellar Disk","Yso","Young Stellar Objects","Alma","Sofia","Ophiuchus","Orion","Class 0","Class I","R Cra Iras 32","Hops","Iras 16293-2422"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2024 Francisco Jose Encalada"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/127190"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-03-28 without embargo terms","The student, Francisco Encalada, accepted the attached license on 2024-11-14 at 15:19.","The student, Francisco Encalada, submitted this Dissertation for approval on 2024-11-14 at 16:30.","This Dissertation was approved for publication on 2024-11-18 at 14:44.","DSpace SAF Submission Ingestion Package generated from Vireo submission #21319 on 2025-03-28 at 14:25:33","In this thesis we present high-resolution observations of young stellar objects and protostellar systems using ALMA and SOFIA. We examine spatial structures, kinematics, and magnetic field morphologies across multiple (sub)millimeter wavelengths and molecular cloud environments. Our survey of the youngest protostars in rho Ophiuchus reveals lower masses and smaller radii for Class I and flat spectrum disks when compared to similar sources in Perseus and Orion, while the multiplicity statistics remained consistent across all three regions. We present the first high-resolution observations of the Class 0 protobinary system R CrA IRAS 32, concluding that (a) the circumstellar and circumbinary disks are aligned as expected in disk fragmentation, and (b) perhaps evidence for the funneling of gas between the binary components. Our multi-wavelength polarimetric study of IRAS 16293-2422 finds magnetic fields at 89 micron aligned with the East-West outflows which differs from longer wavelength observations, and we show a wavelength-dependent shift in dust emission peaks. Finally, we present preliminary results from a simple research survey at 1.3 mm of Class 0 binary protostellar systems in Orion A and B, showing that disk fragmentation alone is not sufficient to explain outflow-disk alignment. These studies advance our understanding of early stellar evolution, disk properties, magnetic field morphologies, and binary formation mechanisms in various nearby molecular clouds."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Observations of protostellar systems across sub/millimeter wavelengths in nearby molecular clouds"]}]}],"canonical_facts":{"dc:contributor":["Looney, Leslie W","Gammie, Charles F","Vieira, Joaquin","Wong, Tony"],"dc:creator":["Encalada, Francisco Jose"],"dc:date":["2024-11-18","2024-12"],"dc:description":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-03-28 without embargo terms","The student, Francisco Encalada, accepted the attached license on 2024-11-14 at 15:19.","The student, Francisco Encalada, submitted this Dissertation for approval on 2024-11-14 at 16:30.","This Dissertation was approved for publication on 2024-11-18 at 14:44.","DSpace SAF Submission Ingestion Package generated from Vireo submission #21319 on 2025-03-28 at 14:25:33","In this thesis we present high-resolution observations of young stellar objects and protostellar systems using ALMA and SOFIA. We examine spatial structures, kinematics, and magnetic field morphologies across multiple (sub)millimeter wavelengths and molecular cloud environments. Our survey of the youngest protostars in rho Ophiuchus reveals lower masses and smaller radii for Class I and flat spectrum disks when compared to similar sources in Perseus and Orion, while the multiplicity statistics remained consistent across all three regions. We present the first high-resolution observations of the Class 0 protobinary system R CrA IRAS 32, concluding that (a) the circumstellar and circumbinary disks are aligned as expected in disk fragmentation, and (b) perhaps evidence for the funneling of gas between the binary components. Our multi-wavelength polarimetric study of IRAS 16293-2422 finds magnetic fields at 89 micron aligned with the East-West outflows which differs from longer wavelength observations, and we show a wavelength-dependent shift in dust emission peaks. Finally, we present preliminary results from a simple research survey at 1.3 mm of Class 0 binary protostellar systems in Orion A and B, showing that disk fragmentation alone is not sufficient to explain outflow-disk alignment. These studies advance our understanding of early stellar evolution, disk properties, magnetic field morphologies, and binary formation mechanisms in various nearby molecular clouds."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/127190"],"dc:language":["en","eng"],"dc:rights":["Copyright 2024 Francisco Jose Encalada"],"dc:subject":["Astronomy","Astrophysics","Disks","Protostellar Disks","Circumbinary Disks","Circumstellar Disk","Yso","Young Stellar Objects","Alma","Sofia","Ophiuchus","Orion","Class 0","Class I","R Cra Iras 32","Hops","Iras 16293-2422"],"dc:title":["Observations of protostellar systems across sub/millimeter wavelengths in nearby molecular clouds"],"dc:type":["text","Thesis"],"thesis:degree_discipline":["Astronomy"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:03Z"}