2019 Fiscal Year Annual Research Report
| Project/Area Number |
18J21778
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| Research Institution | The University of Tokyo |
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Principal Investigator |
OMAND CONOR 東京大学, 理学系研究科, 特別研究員(DC1)
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| Project Period (FY) |
2018-04-25 – 2021-03-31
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| Keywords | Magnetar / Pulsar / Supernova / Pulsar Wind Nebula / Radio Emission / Superluminous Supernova / Fast Radio Burst / Spectra |
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| Outline of Annual Research Achievements |
My collaborators and I published our radio observations of superluminous supernova (SLSNe) remnants, where we were able to detect the first ever radio source in these remnants, which is consistent with the pulsar-driven model for SLSN. I did the theoretical modelling for these supernovae and was able to constrain parameters of the model, showing that faster pulsars and heavier ejecta is preferred.
I developed an analytical model to predict the broadband spectrum of a pulsar wind nebula (PWN) powered by a rotating millisecond magnetar within the first century after the explosion. I've begun to apply this new model to previous radio observations and observations of Fast Radio Bursts to derive constraints.
I'm also beginning to write code that can predict late-time optical spectra of SLSNe.
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| Current Status of Research Progress |
Current Status of Research Progress
3: Progress in research has been slightly delayed.
Reason
Writing the code and developing the analytical model for the broadband pulsar wind nebula spectrum took longer than anticipated, and the numerical code that the analytical model needs to be compared to also had problems, meaning that a significant amount of time had to be spent debugging that.
Recently, the quarantine due to the coronavirus has slowed down the project significantly. Not being able to go to the office has meant that it's more difficult to discuss with my supervisor and other collaborators about the next steps, or share ideas about how to fix the various issues with the code.
I also attended a few conferences in the past year, where I was able to meet new potential collaborators and gain a broader understanding of the field, but slowed down the progress on my own project.
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| Strategy for Future Research Activity |
Progress in the next year will be difficult, both because of the possible continued quarantine due to the coronavirus as well as a significant amount of time needing to be spent writing my PhD thesis.
Once the analytical model for PWNe is finished, and has been successfully compared to numerical code, we can use it to derive constraints on the engines of Fast Radio Bursts and SLSNe. We have submitted several proposals for telescope time with NuSTAR (x-ray), ALMA (Submillimeter), and VLA (radio); some of which were already accepted. This means that tere will be plenty of new data that will need to be modelled within the next year or so. We also still have submillimeter observations that need to be published.
After these, I will focus on predicting late-time optical spectroscopy for SLSNe.
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Research Products
(9 results)
