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exoALMA. XXIV. Formaldehyde Emission in Protoplanetary Disks of exoALMA Compared with Their Properties and Dynamical State

  • Authors: Felipe Alarcón, Stefano Facchini, Leon Trapman, Pietro Curone, Luna Rampinelli, Sean M. Andrews, Jaehan Bae, Marcelo Barraza-Alfaro, Myriam Benisty, Maria Galloway-Sprietsma, Cassandra Hall, John D. Ilee, Giuseppe Lodato, Christophe Pinte, Jochen Stadler, Richard Teague, David J. Wilner, Ke Zhang

Felipe Alarcón et al 2026 The Astrophysical Journal Letters 1000 .

  • Provider: AAS Journals

Caption: Figure 3.

Top: comparison between formaldehyde column density in the two 100 au radial bins, with the dashed line indicating the identity. Bottom: excitation temperature of H2CO between the inner 100 au and the successive 100–200 au radial bin. No significant difference between the two temperatures can be stated given the uncertainties due to the lower SNR of the emission in the outer 100 au.

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