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Uncovering a Massive z ∼ 7.7 Galaxy Hosting a Heavily Obscured Radio-loud Active Galactic Nucleus Candidate in COSMOS-Web

  • Authors: Erini Lambrides, Marco Chiaberge, Arianna S. Long, Daizhong Liu, Hollis B. Akins, Andrew F. Ptak, Irham Taufik Andika, Alessandro Capetti, Caitlin M. Casey, Jaclyn B. Champagne, Katherine Chworowsky, Tracy E. Clarke, Olivia R. Cooper, Xuheng Ding, Dillon Z. Dong, Andreas L. Faisst, Jordan Y. Forman, Maximilien Franco, Steven Gillman, Ghassem Gozaliasl, Kirsten R. Hall, Santosh Harish, Christopher C. Hayward, Michaela Hirschmann, Taylor A. Hutchison, Knud Jahnke, Shuowen Jin, Jeyhan S. Kartaltepe, Emma T. Kleiner, Anton M. Koekemoer, Vasily Kokorev, Sinclaire M. Manning, Crystal L. Martin, Jed McKinney, Colin Norman, Kristina Nyland, Masafusa Onoue, Brant E. Robertson, Marko Shuntov, John D. Silverman, Massimo Stiavelli, Benny Trakhtenbrot, Eleni Vardoulaki, Jorge A. Zavala, Natalie Allen, Olivier Ilbert, Henry Joy McCracken, Louise Paquereau, Jason Rhodes, Sune Toft

Erini Lambrides et al 2024 The Astrophysical Journal Letters 961 .

  • Provider: AAS Journals

Caption: Figure 4.

Left panel: optical-IR-radio SED fitting with BC03 stellar (Bruzual & Charlot 2003), mid-IR AGN (Mullaney et al. 2011), Draine & Li dust (Draine & Li 2007), and power-law radio templates (using the MICHI2 code; Liu et al. 2021). The black line indicates the composite best-fit model, and the blue symbols are photometric data points, with upper limits shown as downward arrows. The stellar, mid-IR AGN, dust, and radio components are indicated by the cyan, yellow, red, and magenta dashed lines, respectively. Right panels: the 1/ χ 2 distributions from the fitting for the four parameters: stellar mass, dust attenuation E(B − V), AGN component’s luminosity integrated over 10–1000 μm, and dust component’s luminosity integrated over 8–1000 μm. The yellow highlighted regions correspond to the 95% confidence intervals.

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