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The Accretion History of EX Lup: A Century of Bursts, Outbursts, and Quiescence
Mu-Tian Wang, Gregory J. Herczeg, Hui-Gen Liu +11
EX Lup is the archetype for the class of young stars that undergoes repeated accretion outbursts of mag at optical wavelengths and that last for months. Despite extensive…
Complex Organic Molecules in a Very Young Hot Corino, HOPS 373SW
Jeong-Eun Lee, Giseon Baek, Seokho Lee +6
We present the spectra of Complex Organic Molecules (COMs) detected in HOPS 373SW with the Atacama Large Millimeter/submillimeter Array (ALMA). HOPS 373SW, which is a component of…
Photometric and Spectroscopic monitoring of YSOs in nearby star forming regions. I. Eruptive YSOs
Carlos Contreras Peña, Gregory J. Herczeg, Mizna Ashraf +7
Mid-infrared (mid-IR) variability in young stellar objects (YSOs) is driven by several physical mechanisms, which produce a variety of amplitudes and light curve shapes. One of the…
FAUST VII. Detection of A Hot Corino in the Prototypical Warm Carbon-Chain Chemistry Source IRAS 15398-3359
Yuki Okoda, Yoko Oya, Logan Francis +16
We have observed the low-mass protostellar source, IRAS 153983359, at a resolution of 0.2-0.3, as part of the Atacama Large Millimeter/Submillimeter Array Large Program…
JWST Observations of the Enigmatic Y Dwarf WISE 1828+2650: I. Limits to a Binary Companion
Matthew De Furio, Ben W. Lew, Charles A. Beichman +20
The Y-dwarf WISE 1828+2650 is one of the coldest known Brown Dwarfs with an effective temperature of 300 K. Located at a distance of just 10 pc, previous model-based estimate…
First Observations of the Brown Dwarf HD 19467 B with JWST
Alexandra Z. Greenbaum, Jorge Llop-Sayson, Ben Lew +21
We observed HD 19467 B with JWST's NIRCam in six filters spanning 2.5-4.6 with the Long Wavelength Bar coronagraph. The brown dwarf HD 19467 B was initially identified through…