The PhotoDissociation Region Toolbox: Software and Models for Astrophysical Analysis [PDF]
The Astronomical Journal, 2022 The PhotoDissociation Region Toolbox provides comprehensive, easy-to-use, public software tools and models that enable an understanding of the interaction of the light of young, luminous, massive stars with the gas and dust in the Milky Way and in other ...
Marc W. Pound, Mark G. Wolfire
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High-resolution Observations of H i in the IC 63 Reflection Nebula
The Astronomical Journal, 2023 Photodissociation regions (PDRs), where the (far-)ultraviolet light from hot young stars interact with the gas in surrounding molecular clouds, provide laboratories for understanding the nature and role of feedback by star formation on the interstellar ...
Lars Bonne +9 more
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SOFIA FEEDBACK Survey: The Pillars of Creation in [C ii] and Molecular Lines
The Astronomical Journal, 2023 We investigate the physical structure and conditions of photodissociation regions (PDRs) and molecular gas within the Pillars of Creation in the Eagle Nebula using SOFIA FEEDBACK observations of the [C ii ] 158 μ m line.
Ramsey L. Karim +13 more
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PDFCHEM: Fast simulations of the chemical ISM using probability distributions [PDF]
EPJ Web of Conferences, 2022 We present PDFCHEM, a new numerical method able to compute the photodissociation region (PDR) chemistry of large-scale inhomogeneous ISM regions using probability distributions of physical parameters as an input.
Bisbas Thomas G. +3 more
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Multi-line Observations, Models, and Data Needed to Understand the Nature of UV-irradiated Interstellar Matter [PDF]
EPJ Web of Conferences, 2022 Far-ultraviolet photons from OB-type massive stars regulate the heating, ionization, and chemistry of much of the neutral interstellar gas in star-forming galaxies.
Goicoechea Javier R. +2 more
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The Photodissociation and Ionization Fronts in M17-SW Localized with FIFI-LS on Board SOFIA
The Astrophysical Journal, 2023 To understand star formation rates, studying feedback mechanisms that regulate star formation is necessary. The radiation emitted by nascent massive stars play a significant role in feedback by photodissociating and ionizing their parental molecular ...
Randolf Klein +7 more
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Irradiation Investigation: Exploring the Molecular Gas in NGC 7293
Galaxies, 2020 Background: Many planetary nebulae retain significant quantities of molecular gas and dust despite their signature hostile radiation environments and energetic shocks.
Jesse Bublitz +7 more
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Structure of the W3A Low-density Foreground Region
The Astrophysical Journal, 2023 We present analysis of [O i ] 63 μ m and CO J = 5 − 4 and 8 − 7 multiposition data in the W3A region and use it to develop a model for the extended low-density foreground gas that produces absorption features in the [O i ] and J = 5 − 4 CO lines.
Paul. F. Goldsmith +7 more
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CI Traces the Disk Atmosphere in the IM Lup Protoplanetary Disk
The Astrophysical Journal Letters, 2023 The central star and its energetic radiation fields play a vital role in setting the vertical and radial chemical structure of planet-forming disks.
Charles J. Law +4 more
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The Origin of Dust Polarization in the Orion Bar
The Astrophysical Journal, 2023 The linear polarization of thermal dust emission provides a powerful tool to probe interstellar and circumstellar magnetic fields, because aspherical grains tend to align themselves with magnetic field lines.
Valentin J. M. Le Gouellec +10 more
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