Kavli Affiliate: Bruce Macintosh | First 5 Authors: Jean-Baptiste Ruffio, Quinn M. Konopacky, Travis Barman, Bruce Macintosh, Kielan K. Wilcomb | Summary: The four directly imaged planets orbiting the star HR 8799 are an ideal laboratory to probe atmospheric physics and formation models. We present more than a decade’s worth of Keck/OSIRIS observations of these […]
Kavli Affiliate: Huawei Zhang | First 5 Authors: Xiao-Wei Duan, Weijia Sun, Xiaodian Chen, Licai Deng, Huawei Zhang | Summary: The behavior of the shock wave in the atmosphere of the non-fundamental mode RR Lyrae pulsator remains a mystery. In this work, we firstly report a blueshifted Mg triplet emission in continuous spectroscopic observations for […]
Kavli Affiliate: Subo Dong | First 5 Authors: Thomas W. -S. Holoien, Jack M. M. Neustadt, Patrick J. Vallely, Katie Auchettl, Jason T. Hinkle | Summary: We present observations of the extremely luminous but ambiguous nuclear transient (ANT) ASASSN-17jz, spanning roughly 1200 days of the object’s evolution. ASASSN-17jz was discovered by the All-Sky Automated Survey […]
Kavli Affiliate: Jia Liu | First 5 Authors: Katsuya Hashino, Jia Liu, Xiao-Ping Wang, Ke-Pan Xie, | Summary: The cosmological evolution can modify the dark matter (DM) properties in the early Universe to be vastly different from the properties today. Therefore, the relation between the relic abundance and the DM constraints today needs to be […]
Kavli Affiliate: Yukinobu Toda | First 5 Authors: Yukinobu Toda, , , , | Summary: We prove wall-crossing formula for categorical Donaldson-Thomas invariants on the resolved conifold, which categorifies Nagao-Nakajima wall-crossing formula for numerical DT invariants on it. The categorified Hall products are used to describe the wall-crossing formula as semiorthogonal decompositions. A successive application […]