atmospheric composition 1dayside emission 1high-resolution spectroscopy 1thermal inversion 1ultra-hot jupiters 1
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astro-ph.SR2026
Accretion Properties of the Young Brown Dwarf 2MASS J08440915-7833457
Toni V. Panzera, Laura S. Flagg, Margaret A. Mueller +2
We present HST-COS FUV and -STIS optical observations towards the young accreting brown dwarf 2MASS-J08440915-7833457 (J0844) from the ULLYSES DDT Program. We analyse hot FUV lines…
astro-ph.SR2025
Discovery of an Accretion Burst in a Free-Floating Planetary-Mass Object
V. Almendros-Abad, A. Scholz, B. Damian +7
We report the discovery of a long-lasting burst of disk accretion in Cha J11070768-7626326 (Cha 1107-7626), a young, isolated, 5-10 M object. In spectra taken…