The Altered State of $\eta$Carinae: HST's Photometric Record 1998--2021

Abstract

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 $\eta$ Car's change of state.

arXiv comment8 pages, 1 figure, 1 table

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Cited by in corpus (1)

• Changes in the Na D${}_1$ Absorption Components of $\eta$ Carinae Provide Clues on the Location of the Dissipating Central Occulter