The Altered State of $eta$Carinae: HSTs Photometric Record 1998--2021


الملخص بالإنكليزية

Hubble Space Telescope photometry of $eta$ Carinae spans 23 years, including five spectroscopic events. The rapid brightening rate decreased after 2010, and the spectroscopic events in 2014 and 2020 had light curves different from their predecessors. Together with other indicators, these developments probably foretell the conclusion of $eta$ Cars change of state.

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