PHANGS–JWST First Results: Variations in PAH Fraction as a Function of ISM Phase and Metallicity

PHANGS–JWST First Results: Variations in PAH Fraction as a Function of ISM Phase and Metallicity

We present maps tracing the fraction of dust in the form of polycyclic aromatic hydrocarbons (PAHs) in IC 5332, NGC 628, NGC 1365, and NGC 7496 from JWST/MIRI observations. We trace the PAH fraction by combining the F770W (7.7 μ m) and F1130W (11.3 μ m) filters to track ionized and neutral PAH emiss...

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Bibliographic Details
Main Authors: Jérémy Chastenet, Jessica Sutter, Karin Sandstrom, Francesco Belfiore, Oleg V. Egorov, Kirsten L. Larson, Adam K. Leroy, Daizhong Liu, Erik Rosolowsky, David A. Thilker, Elizabeth J. Watkins, Thomas G. Williams, Ashley. T. Barnes, Frank Bigiel, Médéric Boquien, Mélanie Chevance, I-Da Chiang, Daniel A. Dale, J. M. Diederik Kruijssen, Eric Emsellem, Kathryn Grasha, Brent Groves, Hamid Hassani, Annie Hughes, Kathryn Kreckel, Sharon E. Meidt, Ryan J. Rickards Vaught, Amy Sardone, Eva Schinnerer
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:The Astrophysical Journal Letters
Subjects:
Dust physics
Interstellar dust
Polycyclic aromatic hydrocarbons
Online Access:https://doi.org/10.3847/2041-8213/acadd7

Internet

https://doi.org/10.3847/2041-8213/acadd7

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