Tootfinder

Atmospheric parameters and chemical abundances of young stars with APOGEE. I. Orion star-forming region
Ricardo L\'opez-Valdivia, Luc\'ia Adame, Carlos G. Rom\'an-Z\'u\~niga, Jes\'us Hern\'andez, Edilberto S\'anchez, Itzarel Herrn\'andez-Aburto, Jos\'e G. Fern\'andez-Trincado, Eduardo Zagala Lagunas, Leticia Carigi, J. E. M\'endez-Delgado, Marina Kounkel, Javier Serna, Richard R. Lane, Keivan G. Stassun, Sandro Villanova, Jinyoung Serena Kim,…

Atmospheric parameters and chemical abundances of young stars with APOGEE. I. Orion star-forming region
We derive atmospheric parameters and chemical abundances in young G-, K-, and M-type stars (temperatures between 6500 and 3100 K) using infrared APOGEE-2 spectra. Atmospheric parameters were determined for 548 young stars in the Orion complex (Orion A, B, OB1, and $λ$ Ori) using the TONALLI code. For 340 slow rotators v sini $\leq$ 30 km s$^{-1}$), we derived C, Mg, Si, K, Ti, and Fe abundances using 19 atomic lines, MARCS model atmospheres, and BACCHUS. To mitigate the impact of circumstellar…

Diamond-loaded polyimide aerogel scattering filters and their applications in astrophysical and planetary science observations
Kyle R. Helson, Carol Yan Yan Chan, Stefan Arseneau, Alyssa Barlis, Charles L. Bennett, Thomas M. Essinger-Hileman, Haiquan Guo, Tobias Marriage, Manuel A. Quijada, Ariel E. Tokarz, Stephanie L. Vivod, Edward J. Wollack
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Diamond-loaded polyimide aerogel scattering filters and their applications in astrophysical and planetary science observations
Infrared-blocking, aerogel-based scattering filters have a broad range of potential applications in astrophysics and planetary science instruments in the far-infrared, sub-millimeter, and microwave regimes. This paper demonstrates the ability of conductively-loaded, polyimide aerogel filters to meet the mechanical and science instrument requirements for several experiments, including the Cosmology Large Angular Scale Surveyor (CLASS), the Experiment for Cryogenic Large-Aperture Intensity Mappin…