PDRs and XDRs: Theory and Observations

Sternberg, A.

doi:10.1017/s1743921306007137

Cited by 1 publication

(1 citation statement)

References 40 publications

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“…Since then, the physics and chemistry of XDRs has been examined from several different perspectives concentrating on protoplanetary disks (Glassgold et al 1997, Igea & Glassgold 1999, Stäuber et al 2005, Ercolano et al 2008, Owen et al 2011, Aresu et al 2012, galactic centers of AGN host sources (e.g., Meijerink et al 2007, García-Burillo et al 2010, Harada et al 2013, Mingozzi et al 2018, and X-ray binaries (Moser et al 2017, Lebouteiller et al 2017. Several previous reviews have been published on both PDRs and XDRs (e.g., Hollenbach & Tielens 1997, Sternberg 2005, Snow & McCall 2006, Bolatto et al 2013. In this review we provide the basic micro-physics required to understand the dominant thermal, chemical, and radiative processes in PDRs and XDRs while striving to summarize results from theoretical, observational, and laboratory work since the previous reviews.…”

Section: Introductionmentioning

confidence: 99%

Photodissociation and X-Ray Dominated Regions

Wolfire¹,

Vallini²,

Chevance³

2022

Preprint

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The radiation from stars and active galactic nuclei (AGN) creates photodissociation regions (PDRs) and X-ray dominated regions (XDRs), where the chemistry or heating are dominated by far-ultraviolet (FUV) radiation or X-ray radiation, respectively. PDRs include a wide range of environments from the diffuse interstellar medium to dense star-forming regions. XDRs are found in the center of galaxies hosting AGN, in protostellar disks, and in the vicinity of X-ray binaries. In this review, we describe the dominant thermal, chemical, and radiation transfer processes in PDRs and XDRs, as well as a brief description of models and their use to analyze observations. We then present recent results from Milky Way, nearby extragalactic, and high-redshift observations. Several important results are:

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