Gas Evolution in Inner Disk Cavities from a Synergic Analysis of IR-CO and UV-H2 Spectra

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dc.contributor.authorSanchez, Michael A.
dc.contributor.authorBanzatti, Andrea
dc.contributor.authorHoadley, Keri
dc.contributor.authorFrance, Kevin
dc.contributor.authorBruderer, Simon
dc.date.accessioned2021-08-24T15:48:49Z
dc.date.available2021-08-24T15:48:49Z
dc.date.issued2021-04
dc.description.abstractWe are conducting a multi-wavelength analysis of high-resolution molecular spectra that probe the evolution of gas in the inner 10 au in protoplanetary disks. A sample of 15 disks has been combined to probe a range of inner disk structures including small and large dust cavities. Half of the sample has been observed in far-ultraviolet H2 emission with a new HST-COS program (GO-14703), that we have combined to near-infrared spectra of CO emission as observed with VLT-CRIRES and IRTF-iSHELL. This synergic dataset traces the evolution and depletion of CO and H2 in inner disk cavities and shows an evolving radial stratification of the molecular gas, where CO lines are narrower than H2 lines in disks with cavities. CO rotation diagrams also show significant evolution, suggesting a change in gas excitation as CO emission recedes to larger disk radii.
dc.description.departmentPhysics
dc.formatText
dc.format.extent7 pages
dc.format.medium1 file (.pdf)
dc.identifier.citationSánchez, M. A., Banzatti, A., Hoadley, K., France, K., & Bruderer, S. (2021). Gas evolution in inner disk cavities from a synergic analysis of IR-CO and UV-H2 spectra. Research Notes of the AAS, 5(4).
dc.identifier.doihttps://doi.org/10.3847/2515-5172/abf43c
dc.identifier.urihttps://hdl.handle.net/10877/14438
dc.language.isoen
dc.publisherAmerican Astronomical Society
dc.rights.holder© 2021 The Author(s).
dc.rights.licenseThis work is licensed under a Creative Commons Attribution 4.0 International License.
dc.sourceResearch Notes of teh AAS, April 2021, Vol. 5, No. 4.
dc.subjectprotoplanetary disks
dc.subjectmolecular spectroscopy
dc.subjectexoplanet formation
dc.subjectcircumstellar disks
dc.subjectnear infrared astronomy
dc.subjectultraviolet astronomy
dc.subjectmolecular gas
dc.subjectpre-main sequence stars
dc.subjectPhysics
dc.titleGas Evolution in Inner Disk Cavities from a Synergic Analysis of IR-CO and UV-H2 Spectra
dc.typeArticle

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