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Linking Stellar Populations to H II Regions across Nearby Galaxies. II. Infrared Reprocessed and UV Direct Radiation Pressure in H II Regions

Authors: Debosmita Pathak, Adam K. Leroy, Todd A. Thompson, Laura A. Lopez, Ashley. T. Barnes, Daniel A. Dale, Ian Blackstone, Simon C. O. Glover, Shyam H. Menon, Jessica Sutter, Thomas G. Williams, Dalya Baron, Francesco Belfiore, Frank Bigiel, Alberto D. Bolatto, Médéric Boquien, Rupali Chandar, Mélanie Chevance, Ryan Chown, Kathryn Grasha, Brent Groves, Ralf S. Klessen, Kathryn Kreckel, Jing Li, J. Eduardo Méndez-Delgado, Erik Rosolowsky, Karin Sandstrom, Sumit K. Sarbadhicary, Jiayi Sun, Leonardo Úbeda

Debosmita Pathak et al 2025 The Astrophysical Journal 982 .

Provider: AAS Journals

Caption: Figure 16.

The impact of variation in R_V. Left panel: variation of the K. D. Gordon et al. (2023) extinction curves as a function of R_V. Additionally, the center panel shows the scaling of ﹩{P}_{{\rm{Direct}}}^{{\rm{Rad}}}﹩ while the right panel shows ﹩{P}_{{\rm{Reprocessed}}}^{{\rm{Rad}}}﹩ as a function of R_V for values between 2.3 and 5.6, normalized to a our fiducial R_V of 3.1. The variation in ﹩{P}_{{\rm{Direct}}}^{{\rm{Rad}}}﹩ relative to R_V = 3.1 depends on the attenuation, and we show a range of A_Hα between 0.4 and 4. The relative variation in ﹩{P}_{{\rm{Reprocessed}}}^{{\rm{Rad}}}﹩ depends to a smaller degree on the radiation field, shown for a range of log U between 0 and 4.

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