CaltechAUTHORS
Published March 2022 | Version Accepted Version + Published
Journal Article Open

The ODYSSEUS Survey. Motivation and First Results: Accretion, Ejection, and Disk Irradiation of CVSO 109

Creators

  • 1. ROR icon Boston University
  • 2. ROR icon Peking University
  • 3. ROR icon University of Michigan–Ann Arbor
  • 4. ROR icon Space Telescope Science Institute
  • 5. ROR icon Laboratory for Atmospheric and Space Physics
  • 6. ROR icon National Autonomous University of Mexico
  • 7. ROR icon Konkoly Observatory
  • 8. ROR icon Max Planck Institute for Astronomy
  • 9. ROR icon Eötvös Loránd University
  • 10. ROR icon Stony Brook University
  • 11. ROR icon Osservatorio Astrofisico di Catania
  • 12. ROR icon Rice University
  • 13. ROR icon Universität Hamburg
  • 14. ROR icon Amherst College
  • 15. ROR icon Smith College
  • 16. ROR icon Purple Mountain Observatory
  • 17. ROR icon European Southern Observatory
  • 18. ROR icon Astronomical Observatory of Capodimonte
  • 19. ROR icon Institut de Planétologie et d'Astrophysique de Grenoble
  • 20. ROR icon University of Leicester
  • 21. ROR icon Astronomical Observatory of Rome
  • 22. ROR icon Jet Propulsion Lab
  • 23. ROR icon Texas State University
  • 24. ROR icon Cerro Tololo Inter-American Observatory
  • 25. ROR icon University of Dundee
  • 26. ROR icon University of Virginia
  • 27. ROR icon University College Dublin
  • 28. ROR icon Dublin Institute For Advanced Studies
  • 29. ROR icon Thüringer Landessternwarte Tautenburg
  • 30. ROR icon Osservatorio Astrofisico di Torino
  • 31. ROR icon Arcetri Astrophysical Observatory
  • 32. ROR icon University of Kent
  • 33. ROR icon Crimean Astrophysical Observatory
  • 34. ROR icon Massachusetts Institute of Technology
  • 35. ROR icon University of Hertfordshire
  • 36. ROR icon California Institute of Technology
  • 37. ROR icon Rochester Institute of Technology
  • 38. ROR icon University of the Western Cape
  • 39. ROR icon University of Valparaíso
  • 40. ROR icon Centro de Astrobiología
  • 41. ROR icon Aryabhatta Research Institute of Observational Sciences
  • 42. ROR icon Johns Hopkins University
  • 43. ROR icon University of Hawaii at Manoa
  • 44. ROR icon National Astronomical Research Institute of Thailand

Abstract

The Hubble UV Legacy Library of Young Stars as Essential Standards (ULLYSES) Director's Discretionary Program of low-mass pre-main-sequence stars, coupled with forthcoming data from Atacama Large Millimeter/submillimeter Array and James Webb Space Telescope, will provide the foundation to revolutionize our understanding of the relationship between young stars and their protoplanetary disks. A comprehensive evaluation of the physics of disk evolution and planet formation requires understanding the intricate relationships between mass accretion, mass outflow, and disk structure. Here we describe the Outflows and Disks around Young Stars: Synergies for the Exploration of ULLYSES Spectra (ODYSSEUS) Survey and present initial results of the classical T Tauri Star CVSO 109 in Orion OB1b as a demonstration of the science that will result from the survey. ODYSSEUS will analyze the ULLYSES spectral database, ensuring a uniform and systematic approach in order to (1) measure how the accretion flow depends on the accretion rate and magnetic structures, (2) determine where winds and jets are launched and how mass-loss rates compare with accretion, and (3) establish the influence of FUV radiation on the chemistry of the warm inner regions of planet-forming disks. ODYSSEUS will also acquire and provide contemporaneous observations at X-ray, optical, near-IR, and millimeter wavelengths to enhance the impact of the ULLYSES data. Our goal is to provide a consistent framework to accurately measure the level and evolution of mass accretion in protoplanetary disks, the properties and magnitudes of inner-disk mass loss, and the influence of UV radiation fields that determine ionization levels and drive disk chemistry.

Additional Information

© 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Received 2021 August 25; revised 2021 December 15; accepted 2021 December 26; published 2022 February 7. While the AAS journals adhere to and respect UN resolutions regarding the designations of territories (available at http://www.un.org/press/en), it is our policy to use the affiliations provided by our authors on published articles. This work was supported by HST AR-16129 and benefited from discussions with the ODYSSEUS team (https://sites.bu.edu/odysseus/). Based on observations obtained with the NASA/ESA Hubble Space Telescope, retrieved from the Mikulski Archive for Space Telescopes (MAST) at the Space Telescope Science Institute (STScI). STScI is operated by the Association of Universities for Research in Astronomy Inc. under NASA contract NAS 5-26555. Based on observations collected at the European Southern Observatory under ESO program 106.20Z8. We acknowledge financial support from the project PRIN-INAF 2019 "Spectroscopically Tracing the Disk Dispersal Evolution (STRADE)." G.J.H. is supported by National Key R&D Program of China No. 2019YFA0405100 and by National Science Foundation of China general grant 11773002. J.H. and J.S. acknowledge support from the National Research Council of México (CONACyT) project No. 86372 and the PAPIIT-UNAM project IA102921. F.M.W. acknowledges support through NSF grant 1611443. J.C.W. and A.S.A. are supported by the STFC grant No. ST/S000399/1. Observing time with SMARTS/CHIRON is made possible by a research support grant from Stony Brook University. This project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program under grant agreement Nos. 716155 (SACCRED) and 681601 (BuildingPlanS). This paper utilizes the D'Alessio irradiated accretion disk (DIAD) code. We wish to recognize the work of Paola D'Alessio, who passed away in 2013. Her legacy and pioneering work live on through her substantial contributions to the field. We thank Hodari-Sadiki James, Leonardo Paredes, and Todd Henry for managing the CHIRON spectrograph and for their prompt scheduling of the requested observations. Time on the AAVSOnet is awarded competitively; we acknowledge the contributions of AAVSO to supporting variable star science and thank Ken Menzies for coordinating and scheduling the observations. We thank the referee for a constructive review.

Attached Files

Published - Espaillat_2022_AJ_163_114.pdf

Accepted Version - 2201.06502.pdf

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Additional details

Identifiers

Eprint ID
113014
Resolver ID
CaltechAUTHORS:20220119-234017458

Related works

Describes
https://arxiv.org/abs/2201.06502 (URL)
https://sites.bu.edu/odysseus/ (URL)

Funding

NASA
HST AR-16129
NASA
NAS 5-26555
Istituto Nazionale di Astrofisica (INAF)
PRIN-INAF 2019
National Key Research and Development Program of China
2019YFA0405100
National Natural Science Foundation of China
11773002
Consejo Nacional de Ciencia y Tecnología (CONACYT)
86372
Universidad Nacional Autónoma de México (UNAM)
IA102921
NSF
DRL-1611443
Science and Technology Facilities Council (STFC)
ST/S000399/1
Stony Brook University
European Research Council (ERC)
716155
European Research Council (ERC)
681601

Dates

Created
2022-01-20
Created from EPrint's datestamp field
Updated
2022-02-09
Created from EPrint's last_modified field

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Caltech groups
Astronomy Department