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The past, present and future of observations of externally irradiated disks

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arxiv 2502.12255 v3 pith:ZNBGLEN3 submitted 2025-02-17 astro-ph.SR astro-ph.EP

classification astro-ph.SRastro-ph.EP
keywords observationsfuturebroadcommunityfieldgoalmakeplanet
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Recent years have seen a surge of interest in the community studying the effect of ultraviolet radiation environment, predominantly set by OB stars, on protoplanetary disc evolution and planet formation. This is important because a significant fraction of planetary systems, potentially including our own, formed in close proximity to OB stars. This is a rapidly developing field, with a broad range of observations across many regions recently obtained or recently scheduled. In this paper, stimulated by a series of workshops on the topic, we take stock of the current and upcoming observations. We discuss how the community can build on this recent success with future observations to make progress in answering the big questions of the field, with the broad goal of disentangling how external photoevaporation contributes to shaping the observed (exo)planet population. Both existing and future instruments offer numerous opportunities to make progress towards this goal.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. JWST Edge-on Disk Ice (JEDIce): Vibrationally hot, rotationally cold H$_2$ in the outer disk of Oph 163131 non-thermally excited by UV and cosmic rays

    astro-ph.SR 2026-07 conditional novelty 6.5 of 10

    Outer-disk H2 in Oph 163131 is v-hot and J-cold from combined UV and cosmic-ray excitation plus collisions, implying an effective CR ionization rate of order 10^{-15} s^{-1}.

  2. The Impact of External Radiation on the Inner Disk Chemistry of Planet Formation

    astro-ph.EP 2025-08 conditional novelty 6.0 of 10

    External UV radiation up to 10^4 G0 barely changes the inner-disk chemistry of a typical planet-forming disk, but at 10^6 G0 the disk warms, snowlines move inward, and the midplane chemistry resets to atoms and simple...

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