TimeTubes: Visual Exploration of Observed Blazar Datasets

Issei Fujishiro, Naoko Sawada, Masanori Nakayama, Hsiang Yun Wu, Kazuho Watanabe, Shigeo Takahashi, Makoto Uemura

Research output: Contribution to journalConference articlepeer-review

9 Citations (Scopus)


Blazars are attractive objects for astronomers to observe in order to burrow into the magnetic field in the relativistic jet. This paper presents TimeTubes as a novel visualization scheme that allows astronomers to interactively explore characteristic temporal variation patterns in observed blazar datasets. In the TimeTubes spatialization, the two Stokes parameters and their errors with a common timestamp are transformed into an ellipse. A series of such ellipses are aligned in parallel along the timeline to form a 3D volumetric tube. The resulting tube is then colorized by the observed intensities and colors of the blazar, and finally volume-rendered. A designated user interface is provided with visual exploration functions according to Shneiderman's Visual Information Seeking Mantra. In the latest version, an auxiliary mechanism, called visual data fusion, was incorporated to ameliorate data- and mapping-inherent uncertainties for more efficient and effective visual exploration.

Original languageEnglish
Article number012011
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 2018 Jun 27
EventInternational Meeting on High-Dimensional Data-Driven Science, HD3 2017 - Kyoto, Japan
Duration: 2017 Sept 102017 Sept 13

ASJC Scopus subject areas

  • General Physics and Astronomy


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