
Publications of K. Nagashima
All genres
Journal Article (7)
1.
Journal Article
24, pp. 1 - 6 (2022)
The Solar System calcium isotopic composition inferred from Ryugu samples. Geochemical Perspectives Letters 2.
Journal Article
633, A109 (2020)
An improved multi-ridge fitting method for ring-diagram helioseismic analysis. Astronomy and Astrophysics 3.
Journal Article
613, A73 (2018)
Probing sunspots with two-skip time–distance helioseismology. Astronomy and Astrophysics 4.
Journal Article
599, A111 (2017)
The amplitude of the cross-covariance function of solar oscillations as a diagnostic tool for wave attenuation and geometrical spreading. Astronomy and Astrophysics 5.
Journal Article
834, 56 (2017)
Magnetic properties of solar active regions that govern large solar flares and eruptions. Astrophysical Journal 6.
Journal Article
593, A41 (2016)
Statistics of the two-point cross-covariance function of solar oscillations. Astronomy and Astrophysics 7.
Journal Article
289 (9), pp. 3457 - 3481 (2014)
Interpreting the Helioseismic and Magnetic Imager (HMI) multi-height velocity measurements. Solar Physics Book Chapter (1)
8.
Book Chapter
Local Helioseismology Analyses with Hinode/SOT Datasets. In: First Ten Years of Hinode Solar On-Orbit Observatory, pp. 183 - 198 (Eds. Shimizu, T.; Imada, S.; Kubo, M.). Springer, Singapore (2018)
Conference Paper (2)
9.
Conference Paper
160, 01011. TASC2 & KASC9 Workshop – SPACEINN & HELAS8 Conference, Açores Islands, Portugal, July 11, 2016 - July 15, 2016. (2017)
Promoting access to and use of seismic data in a large scientific community: SpaceInn data handling and archiving. In: EPJ Web of Conferences: Seismology of the Sun and the Distant Stars 2016 – Using Today’s Successes to Prepare the Future, Vol. 10.
Conference Paper
Helioseismic and Magnetic Imager multi-height Dopplergrams. In: Progress in Physics of the Sun and Stars: A New Era in Helio- and Asteroseismology, pp. 429 - 432 (Eds. Shibahashi, H.; Lynas-Gray, A. E.). (2013)
Talk (5)
11.
Talk
Measurement of the amplitude of the cross-covariance function. Observing the Sun, Santa Cruz, USA (2016)
12.
Talk
Measuring and interpreting the amplitude of the cross-covariance function of solar seismic waves. Astronomical Society of Japan spring meeting, Osaka, Japan (2015)
13.
Talk
Measurement of the amplitude of the solar cross-covariance function. Solarnet III / HELAS VII / SpaceInn Conference, Freiburg, Germany (2015)
14.
Talk
HMI multi-height Dopplergram study. LWS Helioseismology Workshop #4 "Solar Subsurface Flows from Helioseismology: Problems and Prospects", Stanford, CA, USA (2014)
15.
Talk
SDO/HMI multi-height velocity measurements. HELAS VI/ SOHO-28/ SPACEINN Conference "Helioseismology and Applications", Göttingen, Germany (2014)
Poster (5)
16.
Poster
Monte-Carlo test of an improved multi-ridge fitting code for ring-diagram analysis. Dynamics of the Sun & Stars: Honoring the Life & Work of Michael Thompson , Boulder, CO, USA (2019)
17.
Poster
Towards improved multi-ridge fitting method for ring-diagram analysis. SDO 2018 Science Workshop: Catalyzing Solar Connections , Ghent, Belgium (2018)
18.
Poster
Comparison between time-distance and ring-diagram helioseismology measurements of subsurface convective flows. Annual Meeting of the Astronomische Gesellschaft 2017, Göttingen, Germany (2017)
19.
Poster
SPACEINN WP4: Helioseismology. Joint TASC2 \& KASC9 Workshop - SPACEINN \& HELAS8 Conference, Angra do Heroísmo, Portugal (2016)
20.
Poster
Multi-height Dopplergrams made from SDO/HMI filtergrams. Astronomical Society of Japan spring meeting, Osaka, Japan (2015)