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Mapping Interstellar Dust in the Foreground Outer Disk of Overlapping Galaxy Pair VV 191 with HST and JWST

  • Authors: Clayton D. Robertson, Benne W. Holwerda, Jessica M. Berkheimer, Trevor Butrum, Ian Castellano, Kyle W. Cook, William C. Keel, Anton M. Koekemoer, Divya Patel, Maria del Carmen Polletta, Rogier A. Windhorst

Clayton D. Robertson et al 2025 The Astronomical Journal 170 .

  • Provider: AAS Journals

Caption: Figure 7.

Left: the reddening slope ﹩{R}_{\widetilde{VI}}﹩ plotted against AV throughout all pixels that meet the criteria mentioned in Section 4.2. Right: the NIR attenuation power-law index α plotted against AV. Both plots are two-dimensional hexagonal-binned histogram density plots. To ensure high confidence that the reported pixels are sufficiently backlit by the background galaxy, additional thresholds for the galactocentric radius, R ≥ 8 kpc, and AV, AF090W ≥ 0, are imposed.

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