The edge-on protoplanetary disk HH 48 NE
Astronomy and Astrophysics, vol. 677, pp. A17
Abstract
Context. Observations of edge-on disks are an important tool for constraining general protoplanetary disk properties that cannot be determined in any other way. However, most radiative transfer models cannot simultaneously reproduce the spectral energy distributions (SEDs) and resolved scattered light and submillimeter observations of these systems because the geometry and dust properties are different at different wavelengths. Aims. We simultaneously constrain the geometry of the edge-on protoplanetary disk HH 48 NE and the characteristics of the host star. HH 48 NE is part of the JWST early-release science program Ice Age. This work serves as a stepping stone toward a better understanding of the physical structure of the disk and of the icy chemistry in this particular source. This type of modeling lays the groundwork for studying other edge-on sources that are to be observed with the JWST. Methods. We fit a parameterized dust model to HH 48 NE by coupling the radiative transfer codeRADMC-3Dand a Markov chain Monte Carlo framework. The dust structure was fit independently to a compiled SED, a scattered light image at 0.8 µm, and an ALMA dust continuum observation at 890 µm. Results. We find that 90% of the dust mass in HH 48 NE is settled to the disk midplane. This is less than in average disks. The atmospheric layers of the disk also exclusively contain large grains (0.3–10 µm). The exclusion of small grains in the upper atmosphere likely has important consequences for the chemistry because high-energy photons can penetrate very deeply. The addition of a relatively large cavity (~50 au in radius) is necessary to explain the strong mid-infrared emission and to fit the scattered light and continuum observations simultaneously.
Authors 14
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Leiden University · Leiden Observatory
Affiliation as printed
Leiden Observatory , Leiden University , PO Box 9513 , N2300 RA Leiden , The Netherlands
Leiden Observatory, Leiden University, PO Box 9513, N2300 RA Leiden, The Netherlands
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Leiden University · Leiden Observatory
Affiliation as printed
Leiden Observatory , Leiden University , PO Box 9513 , N2300 RA Leiden , The Netherlands
Leiden Observatory, Leiden University, PO Box 9513, N2300 RA Leiden, The Netherlands
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Center for Astrophysics Harvard & Smithsonian
Affiliation as printed
Center for Astrophysics | Harvard & Smithsonian , 60 Garden St. , Cambridge , MA 02138 , USA
Center for Astrophysics | Harvard & Smithsonian, 60 Garden St., Cambridge, MA 02138, USA
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Affiliation as printed
Institute of Astronomy , Department of Physics , National Tsing Hua University , Hsinchu , Taiwan
Institute of Astronomy, Department of Physics, National Tsing Hua University, Hsinchu, Taiwan
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University of California, Berkeley
Affiliation as printed
Department of Chemistry , University of California , Berkeley , California 94720-1460 , USA
Department of Chemistry, University of California, Berkeley, California 94720-1460, USA
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Centre National de la Recherche Scientifique · Institut des Sciences Moléculaires d'Orsay
Affiliation as printed
Institut des Sciences Moléculaires d'Orsay , CNRS , Univ. Paris-Saclay , 91405 Orsay , France
Institut des Sciences Moléculaires d'Orsay, CNRS, Univ. Paris-Saclay, 91405 Orsay, France
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University of Bern · Center for Space and Habitability
Affiliation as printed
Center for Space and Habitability , Universität Bern , Gesellschaftsstrasse 6 , 3012 Bern , Switzerland
Center for Space and Habitability, Universität Bern, Gesellschaftsstrasse 6, 3012 Bern, Switzerland
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Affiliation as printed
Center for Interstellar Catalysis , Department of Physics and Astronomy , Aarhus University , Ny Munkegade 120 , Aarhus C 8000 , Denmark
Center for Interstellar Catalysis, Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, Aarhus C 8000, Denmark
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Center for Astrophysics Harvard & Smithsonian
Affiliation as printed
Center for Astrophysics | Harvard & Smithsonian , 60 Garden St. , Cambridge , MA 02138 , USA
Center for Astrophysics | Harvard & Smithsonian, 60 Garden St., Cambridge, MA 02138, USA
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Osservatorio Astrofisico di Catania · National Institute for Astrophysics
Affiliation as printed
INAF -Osservatorio Astrofisico di Catania , via Santa Sofia 78 , 95123 Catania , Italy
INAF -Osservatorio Astrofisico di Catania, via Santa Sofia 78, 95123 Catania, Italy
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Affiliation as printed
Department of Physics , University of Central Florida , Orlando , FL 32816 , USA
Department of Physics, University of Central Florida, Orlando, FL 32816, USA
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Leiden University · Leiden Observatory
Affiliation as printed
Laboratory for Astrophysics , Leiden Observatory , Leiden University , PO Box 9513 , 2300 RA Leiden , The Netherlands
Leiden Observatory , Leiden University , PO Box 9513 , N2300 RA Leiden , The Netherlands
Laboratory for Astrophysics, Leiden Observatory, Leiden University, PO Box 9513, 2300 RA Leiden, The Netherlands
Leiden Observatory, Leiden University, PO Box 9513, N2300 RA Leiden, The Netherlands
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National Institutes of Natural Sciences · TMT Observatory · National Astronomical Observatory of Japan
Affiliation as printed
National Astronomical Observatory of Japan , National Institutes of Natural Sciences (NINS) , 2-21-1 Osawa , Mitaka , Tokyo 181-8588 , Japan
TMT International Observatory , 100 W Walnut St , Suite 300 , Pasadena , CA USA
National Astronomical Observatory of Japan, National Institutes of Natural Sciences (NINS), 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
TMT International Observatory, 100 W Walnut St, Suite 300, Pasadena, CA USA
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Osservatorio Astrofisico di Catania · National Institute for Astrophysics
Affiliation as printed
INAF -Osservatorio Astrofisico di Catania , via Santa Sofia 78 , 95123 Catania , Italy
INAF -Osservatorio Astrofisico di Catania, via Santa Sofia 78, 95123 Catania, Italy
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