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The UV Legacy Library of Young Stars as Essential Standards (ULLYSES) Large Director’s Discretionary Program with Hubble. I. Goals, Design, and Initial Results

  • Authors: Julia Roman-Duval, William J. Fischer, Alexander W. Fullerton, Jo Taylor, Rachel Plesha, Charles Proffitt, TalaWanda Monroe, Travis C. Fischer, Alessandra Aloisi, Jean-Claude Bouret, Christopher Britt, Nuria Calvet, Joleen K. Carlberg, Paul A. Crowther, Gisella De Rosa, William V. Dixon, Catherine C. Espaillat, Christopher J. Evans, Andrew J. Fox, Kevin France, Miriam Garcia, Scott W. Fleming, Elaine M. Frazer, Ana I. Gómez de Castro, Gregory J. Herczeg, Svea Hernandez, Alec S. Hirschauer, Bethan L. James, Christopher M. Johns-Krull, Claus Leitherer, Sean Lockwood, Joan Najita, M. S. Oey, Cristina Oliveira, Tyler Pauly, I. Neill Reid, Adric Riedel, David R. Rodriguez, David Sahnow, Ravi Sankrit, Kenneth R. Sembach, Richard Shaw, Linda J. Smith, S. Tony Sohn, Debopam Som, Leonardo Úbeda, Daniel E. Welty

Julia Roman-Duval et al 2025 The Astrophysical Journal 985 .

  • Provider: AAS Journals

Caption: Figure 19.

Comparison of the observed (green) and modeled Lyα profiles in RECX-11. The red line corresponds to the profile modeled using the first approach (scaling based on accretion rate and upper envelope of the relation between accretion rate and Lyα luminosity in K. France et al. 2017), while the blue solid line corresponds to the profile modeled using the second approach (scaling based on accretion rate and relation between peak Lyα flux and accretion rate in C. E. Robinson & C. C. Espaillat 2019). The blue dashed line is also generated with the second approach, but the luminosity is multiplied by 4 for BOP checking purposes. The black line is obtained by assuming the same Lyα luminosity as GM Aur.

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