The Altered State of $\eta$Carinae: HST's Photometric Record 1998--2021
John C. Martin, Kris Davidson, Roberta M. Humphreys, and Kazunori, Ishibashi
TL;DR
This study analyzes 23 years of HST photometry of $ ta$ Carinae, revealing a slowdown in brightening, altered spectroscopic event light curves, and signs of the star's evolving state.
Contribution
It provides the longest photometric record of $ ta$ Carinae, documenting its changing behavior and potential transition phase.
Findings
Decreased brightening rate after 2010
Altered light curves during 2014 and 2020 spectroscopic events
Indicators suggest $ ta$ Carinae is undergoing a significant state change
Abstract
Hubble Space Telescope photometry of 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 Car's change of state.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.