The Evolution of Disk Winds from a Combined Study of Optical and Infrared Forbidden Lines
| Autor: | Michael Meyer, Suzan Edwards, Colette Salyk, Uma Gorti, Inga Kamp, Cassandra Hall, Andres Carmona, Hans Ulrich Käufl, Klaus M. Pontoppidan, Andrea Banzatti, Min Fang, Gwendolyn Meeus, Simon Steendam, Geoffrey A. Blake, Giulia Ballabio, Ilaria Pascucci, Tyler A. Pauly, Michael Sterzik, Richard Alexander, Ettore Flaccomio, G. G. Sacco |
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| Přispěvatelé: | Astronomy |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Protoplanetary disks
010504 meteorology & atmospheric sciences Infrared FOS: Physical sciences Astrophysics 01 natural sciences Luminosity Stellar accretion disks Stellar jets 0103 physical sciences 010303 astronomy & astrophysics Solar and Stellar Astrophysics (astro-ph.SR) 0105 earth and related environmental sciences Line (formation) Earth and Planetary Astrophysics (astro-ph.EP) Physics Spectral index Astronomy and Astrophysics Astrophysics - Astrophysics of Galaxies Radial velocity Full width at half maximum Wavelength Astrophysics - Solar and Stellar Astrophysics 13. Climate action Space and Planetary Science Astrophysics of Galaxies (astro-ph.GA) Magnetohydrodynamics Astrophysics - Earth and Planetary Astrophysics |
| Zdroj: | The Astrophysical Journal, 903(2):78. IOP PUBLISHING LTD The Astrophysical Journal |
| ISSN: | 0004-637X 1538-3881 1538-3873 0004-6361 0067-0049 |
| Popis: | We analyze high-resolution (dv= 10$^{-8}$ Msun/yr) while LVCs are found in sources with low Macc, low [OI] luminosity, and large infrared spectral index (n13-31). Interestingly, the [NeII] and [OI] LVC luminosities display an opposite behaviour with n13-31: as the inner dust disk depletes (higher n13-31) the [NeII] luminosity increases while the [OI] weakens. The [NeII] and [OI] HVC profiles are generally similar with centroids and FWHMs showing the expected behaviour from shocked gas in micro-jets. In contrast, the [NeII] LVC profiles are typically more blueshifted and narrower than the [OI] profiles. The FWHM and centroid vs. disk inclination suggest that the [NeII] LVC predominantly traces unbound gas from a slow, wide-angle wind that has not lost completely the Keplerian signature from its launching region. We sketch an evolutionary scenario that could explain the combined [OI] and [NeII] results and includes screening of hard (~1keV) X-rays in inner, mostly molecular, MHD winds. Accepted for publication in The Astrophysical Journal |
| Databáze: | OpenAIRE |
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