Journal article
UV spectropolarimetry with Polstar: protoplanetary disks
Astrophysics and space science, Vol.367(12), p.122
12/01/2022
DOI: 10.1007/s10509-022-04125-7
Abstract
Polstar is a proposed NASA MIDEX mission that carries a high resolution UV spectropolarimeter capable of measure all four Stokes parameters onboard a 60 cm telescope. The mission has been designed to pioneer the field of time-domain UV spectropolarimetry. Time domain UV spectropolarimetry offers the best resource to determine the geometry and physical conditions of protoplanetary disks from the stellar surface to < 5 AU. We detail two key objectives that a dedicated time domain UV spectropolarimetry survey, such as that enabled by Polstar or a similar mission concept, could achieve: 1) Test the hypothesis that magneto-accretion operating in young planet-forming disks around lower-mass stars transitions to boundary layer accretion in planet-forming disks around higher mass stars; and 2) Discriminate whether transient events in the innermost regions of planet-forming disks of intermediate mass stars are caused by inner disk mis-alignments or from stellar or disk emissions.
Details
- Title: Subtitle
- UV spectropolarimetry with Polstar: protoplanetary disks
- Creators
- John P. Wisniewski - George Mason UniversityAndrei V. Berdyugin - University of TurkuSvetlana V. Berdyugina - Leibniz Inst Sonnenphys, Freiburg, GermanyWilliam C. Danchi - NASA GSFC, Greenbelt, MD USARuobing Dong - University of VictoriaRene D. Oudmaijer - University of LeedsVladimir S. Airapetian - NASA GSFC, Greenbelt, MD USASean D. Brittain - Clemson UniversityKen Gayley - University of IowaRichard Ignace - East Tennessee State UniversityMaud Langlois - UCBL, CNRS, Observ Lyon, ENS, St Genis Laval, FranceKellen D. Lawson - University of OklahomaJamie R. Lomax - US Naval Acad, Phys Dept, 572C Holloway Rd, Annapolis, MD 21402 USAEvan A. Rich - Univ Michigan, Dept Astron, Ann Arbor, MI USAMotohide Tamura - NAOJ, Tokyo, JapanJorick S. Vink - Armagh Observ & Planetarium, Armagh, North IrelandPaul A. Scowen - NASA GSFC, Greenbelt, MD USA
- Resource Type
- Journal article
- Publication Details
- Astrophysics and space science, Vol.367(12), p.122
- DOI
- 10.1007/s10509-022-04125-7
- ISSN
- 0004-640X
- eISSN
- 1572-946X
- Publisher
- Springer Nature
- Number of pages
- 16
- Grant note
- 15437 / HST-GO NASA Goddard Space Flight Center; National Aeronautics & Space Administration (NASA) AST-2009412 / National Science Foundation (NSF) ERC-2011-AdG-291659 / ERC Advanced Grant HotMol; European Research Council (ERC)
- Language
- English
- Date published
- 12/01/2022
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984428764402771
Metrics
6 Record Views