Award Abstract # 1312962
COLLABORATIVE RESEARCH: Understanding Protoplanetary Disk Winds and Planet Interactions via Disk Emission Lines
| NSF Org: | AST Division Of Astronomical Sciences |
| Recipient: | |
| Initial Amendment Date: | August 14, 2013 |
| Latest Amendment Date: | August 14, 2013 |
| Award Number: | 1312962 |
| Award Instrument: | Standard Grant |
| Program Manager: | Hans Krimm hkrimm@nsf.gov (703)292-2761 AST Division Of Astronomical Sciences MPS Direct For Mathematical & Physical Scien |
| Start Date: | September 1, 2013 |
| End Date: | August 31, 2018(Estimated) |
| Total Intended Award Amount: | $288,801.00 |
| Total Awarded Amount to Date: | $288,801.00 |
| Funds Obligated to Date: | |
| History of Investigator: |
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| Recipient Sponsored Research Office: | 845 N PARK AVE RM 538 TUCSON AZ US 85721 (520)626-6000 |
| Sponsor Congressional District: | |
| Primary Place of Performance: | AZ US 85721-0092 |
| Primary Place of Performance Congressional District: | |
| Unique Entity Identifier (UEI): | |
| Parent UEI: | |
| NSF Program(s): | STELLAR ASTRONOMY & ASTROPHYSC |
| Primary Program Source: | |
| Program Reference Code(s): | |
| Program Element Code(s): | |
| Award Agency Code: | 4900 |
| Fund Agency Code: | 4900 |
| Assistance Listing Number(s): | 47.049 |
ABSTRACT Broader impacts training undergraduate and graduate students in research and professional development of science and math teachers. The research team will also make presentations to the public, including on an episode of the SETI Institute radio show Big Picture Science.
This collaborative project combines theoretical and observational work to study circ*mstellar disk winds, evolution and dispersal. They will analyze high resolution optical and infrared spectra of 55 disks around stars that are at different stages of evolution in order to constrain thermochemical and 2-D hydrodynamical models of planet formation. Most of the necessary data are in hand, and new observations are planned with large optical telescopes, such as the Multiple-Mirror Telescope, Large Binocular Telescope and other observatories.
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH
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B. Ercolano & I. Pascucci "The dispersal of planet-forming discs: theory confronts observations" Royal Society Open Science , v.4 , 2017 10.1098/rsos.170114
Ercolano, Barbara & Pascucci, Ilaria "The dispersal of planet-forming discs: theory confronts observations" Royal Society Open Science , v.4 , 2017 , p.170114
Banzatti, Andrea, Pascucci, llaria, Edwards, Suzan "The evolution of inner disk winds from a large survey of high-resolution [OI] spectra" American Astronomical Society, AAS Meeting #231 , 2018 , p.229.01
Pascucci, I.; Ricci, L.; Gorti, U.; Hollenbach, D.; Hendler, N. P.; Brooks, K. J.; Contreras, Y. "Low Extreme-ultraviolet Luminosities Impinging on Protoplanetary Disks" The Astrophysical Journal , v.795 , 2014 , p.1 10.1088/0004-637X/795/1/1
Pascucci, I.; Edwards, S.; Heyer, M.; Rigliaco, E.; Hillenbrand, L.; Gorti, U.; Hollenbach, D.; Simon, M. N. "Narrow Na and K Absorption Lines Toward T Tauri Stars: Tracing the Atomic Envelope of Molecular Clouds" The Astrophysical Journal , v.814 , 2015 , p.17
Galván-Madrid, Roberto; Liu, Hauyu Baobab; Manara, Carlo Felice; Forbrich, Jan; Pascucci, Ilaria; Carrasco-González, Carlos; Goddi, Ciriaco; Hasegawa, Yasuhiro; Takami, Michihiro; Testi, Leonardo "Constraints on photoevaporation models from (lack of) radio emission in the Corona Australis protoplanetary disks" Astronomy & Astrophysics Letter , v.570 , 2014 , p.L9 10.1051/0004-6361/201424630
M. N. Simon, I. Pascucci, S. Edwards, W. Feng, U. Gorti, D. Hollenbach, E. Rigliaco, J. T. Keane "Tracing Slow Winds from T Tauri Stars via Low Velocity Forbidden Line Emission" The Astrophysical Journal , 2016
PROJECT OUTCOMES REPORT
Disclaimer
This Project Outcomes Report for the General Public is displayed verbatim as submitted by the Principal Investigator (PI) for this award. Any opinions, findings, and conclusions or recommendations expressed in this Report are those of the PI and do not necessarily reflect the views of the National Science Foundation; NSF has not approved or endorsed its content.
Planets are common and we know that they form in the gaseous dust disks around young (Myr-old) stars.Yet, we do not know which mechanisms drive the evolution and dispersal of such circ*mstellar disks, hence limit planet formation.
Intellectual Merit. Our work has used diagnostics tracing the hot surface of these disks, e.g. optical forbidden lines and free-free emission, to pin down such mechanisms. One of our major results is published in a paper led by graduate student Molly Simon (Simon et al. 2016). Using high-resolution (~7km/s) optical spectroscopy with the Keck/HIRES we showed that one of the components of the oxygen forbidden line at 6300 angstrom unequivocally traces a magnetically driven wind. We also show that these winds are ubiquitous and raised awareness of their role in disk evolution and dispersal both among observers and theorists.
Broader Impact.Our investigation led to several key publications in the field of disk evolution and dispersal. The PI was also invited to write a review chapter on the topic, now published online by the Royal Society Open Science. In addition, the project enabled the training of one graduate student and a postdoctoral fellow at the University of Arizona and three other non-local students. Discoveries from this investigation were also mentioned in classrooms and public talks to help the general public understand how planets form and how their fomation can be halted.
Last Modified: 11/21/2018
Modified by: IlariaPascucci
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