Study on magnetic flux transportation from sunspots to quiet Sun

• Project/Area Number: 22840047
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Astronomy
• Research Institution: National Astronomical Observatory of Japan
• Principal Investigator: KUBO Masahito 国立天文台, 太陽天体プラズマ研究部, 助教 (80425777)
• Project Period (FY): 2010 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥1,742,000 (Direct Cost: ¥1,340,000、Indirect Cost: ¥402,000); Fiscal Year 2011: ¥598,000 (Direct Cost: ¥460,000、Indirect Cost: ¥138,000); Fiscal Year 2010: ¥1,144,000 (Direct Cost: ¥880,000、Indirect Cost: ¥264,000)
• Keywords: 太陽物理学

Research Abstract

We establish a method to estimate a magnetic flux budget from sunspots to the quiet Sun. In addition, we find a possibility that the distribution of the horizontal magnetic field is determined by a different mechanism for the distribution of the vertical magnetic field that is closely related to supergranular advection.

Research Products

• [Presentation] 活動領域の磁場構造-黒点磁場構造- (2012)
  • Author(s): 久保雅仁
  • Organizer: 『「ひので」5年間の成果と今後の展望』研究会
  • Place of Presentation: 宇宙科学研究所(神奈川県)
  • Year and Date: 2012-02-27
• [Presentation] Magnetic Flux Budget of a Decaying Active Region (2011)
  • Author(s): 久保雅仁
  • Organizer: ISSI meeting
  • Place of Presentation: スイス・ベルン
  • Year and Date: 2011-11-23
• [Presentation] Comparing Photospheric Magnetic Fields and Subsurface Flows in the Quiet Sun (2011)
  • Author(s): 久保雅仁
  • Organizer: Hinode-5 meeting
  • Place of Presentation: アメリカ・ボストン
  • Year and Date: 2011-10-11
• [Presentation] Comparing Photospheric Magnetic Fields and Subsurface Flows in the Quiet S (2011)
  • Author(s): 久保雅仁
  • Organizer: Hinode-5 meeting
  • Place of Presentation: アメリカ・ボストン
  • Year and Date: 2011-10-11
• [Presentation] 太陽静穏領域における光球磁場と対流層の超粒状斑流との関係 (2011)
  • Author(s): 久保雅仁
  • Organizer: 日本天文学会
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2011-09-21
• [Presentation] Diffusion & Decay of Sunspots (2010)
  • Author(s): 久保雅仁
  • Organizer: Hinode-4 meeting
  • Place of Presentation: イタリア・パレルモ
  • Year and Date: 2010-10-11
• [Presentation] Diffusion & Decay of Sunspots (2010)
  • Author(s): 久保雅仁
  • Organizer: Hinode-4 meeting
  • Place of Presentation: イタリア・パレルモ(招待講演)
  • Year and Date: 2010-10-11