Abstract
The solar internal structure and dynamics have been probed by examining the oscillations of the Sun, or by “listening to the Sun”; helioseismology provides us with unique tools for these analyses. Starting from a brief introduction on local helioseismology, in this article I will describe what were our goals and what has been achieved, in learning from the local helioseismology analyses using observations by the Solar Optical Telescope aboard Hinode. This includes the detection of helioseismic signatures of flows in the solar atmosphere, study of supergranular cell structures in the solar polar regions, and sunspot seismology.
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- 1.
As I discussed in Sect. 17.3.3, the signal averaged over the annulus was used in the travel-time calculation of the polar supergranulation study (Nagashima et al. 2011). This alleviates the systematic effect, and the results in Nagashima et al. (2011) are robust. However, if we aim to measure the rotation speed or the meridional flow in the polar region, calibration taking account of the systematics is crucial.
References
Beckers, J.M., Tallant, P.E.: Chromospheric inhomogeneities in sunspot umbrae. Sol. Phys. 7, 351–365 (1969). https://doi.org/10.1007/BF00146140
Christensen-Dalsgaard, J.: Helioseismology. Rev. Mod. Phys. 74, 1073–1129 (2002). https://doi.org/10.1103/RevModPhys.74.1073
Deubner, F.L.: Observations of low wavenumber nonradial eigenmodes of the Sun. A&A 44, 371–375 (1975)
Domingo, V., Fleck, B., Poland, A.I.: The SOHO mission: an overview. Sol. Phys. 162, 1–37 (1995). https://doi.org/10.1007/BF00733425
Duvall, T.L. Jr, Jefferies, S.M., Harvey, J.W., Pomerantz, M.A.: Time-distance helioseismology. Nature 362, 430–432 (1993). https://doi.org/10.1038/362430a0
Gizon, L., Birch, A.C.: Local helioseismology. Living Rev. Sol. Phys. 2, 6 (2005). https://doi.org/10.12942/lrsp-2005-6
Golub, L., Deluca, E., Austin, G., Bookbinder, J., Caldwell, D., Cheimets, P., Cirtain, J., Cosmo, M., Reid, P., Sette, A., Weber, M., Sakao, T., Kano, R., Shibasaki, K., Hara, H., Tsuneta, S., Kumagai, K., Tamura, T., Shimojo, M., McCracken, J., Carpenter, J., Haight, H., Siler, R., Wright, E., Tucker, J., Rutledge, H., Barbera, M., Peres, G., Varisco, S.: The X-ray telescope (XRT) for the Hinode mission. Sol. Phys. 243, 63–86 (2007). https://doi.org/10.1007/s11207-007-0182-1
Harvey, J.W., Hill, F., Hubbard, R.P., Kennedy, J.R., Leibacher, J.W., Pintar, J.A., Gilman, P.A., Noyes, R.W., Title, A.M., Toomre, J., Ulrich, R.K., Bhatnagar, A., Kennewell, J.A., Marquette, W., Patron, J., Saa, O., Yasukawa, E.: The global oscillation network group (GONG) project. Science 272, 1284–1286 (1996). https://doi.org/10.1126/science.272.5266.1284
Kosovichev, A.G., Duvall, T.L. Jr: Acoustic tomography of solar convective flows and structures. In: Pijpers, F.P., Christensen-Dalsgaard, J., Rosenthal, C.S. (eds.) SCORe’96: Solar Convection and Oscillations and Their Relationship. Astrophysics and Space Science Library, vol. 225, pp. 241–260. Springer, Dordrecht (1997). https://doi.org/10.1007/978-94-011-5167-2_26
Kosovichev, A.G., Sekii, T.: Initial observations of sunspot oscillations excited by solar flare. ApJL 670, L147–L149 (2007). https://doi.org/10.1086/524298
Kosugi, T., Matsuzaki, K., Sakao, T., Shimizu, T., Sone, Y., Tachikawa, S., Hashimoto, T., Minesugi, K., Ohnishi, A., Yamada, T., Tsuneta, S., Hara, H., Ichimoto, K., Suematsu, Y., Shimojo, M., Watanabe, T., Shimada, S., Davis, J.M., Hill, L.D., Owens, J.K., Title, A.M., Culhane, J.L., Harra, L.K., Doschek, G.A., Golub, L.: The Hinode (Solar-B) mission: an overview. Sol. Phys. 243, 3–17 (2007). https://doi.org/10.1007/s11207-007-9014-6
Leighton, R.B., Noyes, R.W., Simon, G.W.: Velocity fields in the solar atmosphere. I. Preliminary report. Astrophys. J. 135, 474 (1962). https://doi.org/10.1086/147285
Miesch, M.S., Brun, A.S., Toomre, J.: Solar differential rotation influenced by latitudinal entropy variations in the tachocline. Astrophys. J. 641, 618–625 (2006). https://doi.org/10.1086/499621
Mitra-Kraev, U., Kosovichev, A.G., Sekii, T.: Properties of high-degree oscillation modes of the Sun observed with Hinode/SOT. A&A 481, L1–L4 (2008). https://doi.org/10.1051/0004-6361:20079042
Moradi, H., Baldner, C., Birch, A.C., Braun, D.C., Cameron, R.H., Duvall, T.L., Gizon, L., Haber, D., Hanasoge, S.M., Hindman, B.W., Jackiewicz, J., Khomenko, E., Komm, R., Rajaguru, P., Rempel, M., Roth, M., Schlichenmaier, R., Schunker, H., Spruit, H.C., Strassmeier, K.G., Thompson, M.J., Zharkov, S.: Modeling the subsurface structure of sunspots. Sol. Phys. 267, 1–62 (2010). https://doi.org/10.1007/s11207-010-9630-4
Müller, D., Marsden, R.G., St. Cyr, O.C., Gilbert, H.R.: Solar orbiter: exploring the Sun-heliosphere connection. Sol. Phys. 285, 25–70 (2013). https://doi.org/10.1007/s11207-012-0085-7
Nagashima, K.: Local helioseismology with solar optical telescope onboard Hinode. Ph.D. thesis, The Graduate University for Advanced Studies (2010)
Nagashima, K., Sekii, T., Kosovichev, A.G., Shibahashi, H., Tsuneta, S., Ichimoto, K., Katsukawa, Y., Lites, B., Nagata, S., Shimizu, T., Shine, R.A., Suematsu, Y., Tarbell, T.D., Title, A.M.: Observations of sunspot oscillations in G band and Ca ii H line with solar optical telescope on Hinode. PASJ 59, S631–S636 (2007). https://doi.org/10.1093/pasj/59.sp3.S631
Nagashima, K., Sekii, T., Kosovichev, A.G., Zhao, J., Tarbell, T.D.: Helioseismic signature of chromospheric downflows in acoustic travel-time measurements from Hinode. ApJL 694, L115–L119 (2009a). https://doi.org/10.1088/0004-637X/694/2/L115
Nagashima, K., Sekii, T., Kosovichev, A.G., Zhao, J., Tarbell, T.D.: Travel-time analyses of an emerging-flux region. In: Lites, B., Cheung, M., Magara, T., Mariska, J., Reeves, K. (eds.) The Second Hinode Science Meeting: Beyond Discovery-Toward Understanding. Astronomical Society of the Pacific Conference Series, vol. 415. pp. 417–420. Astronomical Society of the Pacific, San Francisco (2009b)
Nagashima, K., Zhao, J., Kosovichev, A.G., Sekii, T.: Detection of supergranulation alignment in polar regions of the Sun by helioseismology. ApJL 726, L17 (2011). https://doi.org/10.1088/2041-8205/726/2/L17
Pesnell, W.D., Thompson, B.J., Chamberlin, P.C.: The solar dynamics observatory (SDO). Sol. Phys. 275, 3–15 (2012). https://doi.org/10.1007/s11207-011-9841-3
Rouppe van der Voort, L.H.M., Rutten, R.J., Sütterlin, P., Sloover, P.J., Krijger, J.M.: La Palma observations of umbral flashes. A&A 403, 277–285 (2003). https://doi.org/10.1051/0004-6361:20030237
Scherrer, P.H., Bogart, R.S., Bush, R.I., Hoeksema, J.T., Kosovichev, A.G., Schou, J., Rosenberg, W., Springer, L., Tarbell, T.D., Title, A., Wolfson, C.J., Zayer, I., MDI Engineering Team: The solar oscillations investigation – Michelson Doppler imager. Sol. Phys. 162, 129–188 (1995). https://doi.org/10.1007/BF00733429
Schou, J., Scherrer, P.H., Bush, R.I., Wachter, R., Couvidat, S., Rabello-Soares, M.C., Bogart, R.S., Hoeksema, J.T., Liu, Y., Duvall, T.L., Akin, D.J., Allard, B.A., Miles, J.W., Rairden, R., Shine, R.A., Tarbell, T.D., Title, A.M., Wolfson, C.J., Elmore, D.F., Norton, A.A., Tomczyk, S.: Design and ground calibration of the helioseismic and magnetic imager (HMI) instrument on the solar dynamics observatory (SDO). Sol. Phys. 275, 229–259 (2012). https://doi.org/10.1007/s11207-011-9842-2
Schunker, H., Gizon, L., Cameron, R.H., Birch, A.C.: Helioseismology of sunspots: how sensitive are travel times to the Wilson depression and to the subsurface magnetic field? A&A 558, A130 (2013). https://doi.org/10.1051/0004-6361/201321485
Sekii, T.: SOT local-helioseismology programme. In: Sakurai, T., Sekii, T. (eds.) The Solar-B Mission and the Forefront of Solar Physics. Astronomical Society of the Pacific Conference Series, vol. 325. pp. 87–92. Astronomical Society of the Pacific, San Francisco (2004)
Sekii, T., Kosovichev, A.G., Zhao, J., Tsuneta, S., Shibahashi, H., Berger, T.E., Ichimoto, K., Katsukawa, Y., Lites, B., Nagata, S., Shimizu, T., Shine, R.A., Suematsu, Y., Tarbell, T.D., Title, A.M.: Initial helioseismic observations by Hinode/SOT. PASJ 59, S637–S641 (2007). https://doi.org/10.1093/pasj/59.sp3.S637
Tsuneta, S., Ichimoto, K., Katsukawa, Y., Lites, B.W., Matsuzaki, K., Nagata, S., Orozco Suárez, D., Shimizu, T., Shimojo, M., Shine, R.A., Suematsu, Y., Suzuki, T.K., Tarbell, T.D., Title, A.M.: The magnetic landscape of the Sun’s polar region. Astrophys. J. 688, 1374–1381 (2008a). https://doi.org/10.1086/592226
Tsuneta, S., Ichimoto, K., Katsukawa, Y., Nagata, S., Otsubo, M., Shimizu, T., Suematsu, Y., Nakagiri, M., Noguchi, M., Tarbell, T., Title, A., Shine, R., Rosenberg, W., Hoffmann, C., Jurcevich, B., Kushner, G., Levay, M., Lites, B., Elmore, D., Matsushita, T., Kawaguchi, N., Saito, H., Mikami, I., Hill, L.D., Owens, J.K.: The solar optical telescope for the Hinode mission: an overview. Sol. Phys. 249, 167–196 (2008b). https://doi.org/10.1007/s11207-008-9174-z
Ulrich, R.K.: The five-minute oscillations on the solar surface. Astrophys. J. 162, 993–1002 (1970). https://doi.org/10.1086/150731
Zhao, J., Kosovichev, A.G., Duvall, T.L. Jr: Investigation of mass flows beneath a sunspot by time-distance helioseismology. Astrophys. J. 557, 384–388 (2001). https://doi.org/10.1086/321491
Zhao, J., Kosovichev, A.G., Sekii, T.: High-resolution helioseismic imaging of subsurface structures and flows of a solar active region observed by Hinode. Astrophys. J. 708, 304–313 (2010). https://doi.org/10.1088/0004-637X/708/1/304
Zhao, J., Nagashima, K., Bogart, R.S., Kosovichev, A.G., Duvall, T.L. Jr: Systematic center-to-limb variation in measured helioseismic travel times and its effect on inferences of solar interior meridional flows. ApJL 749, L5 (2012). https://doi.org/10.1088/2041-8205/749/1/L5
Acknowledgements
I thank Aaron C. Birch, Hannah Schunker, Takashi Sekii, and Masahito Kubo for useful comments on this article. Hinode is a Japanese mission developed and launched by ISAS/JAXA, with NAOJ as domestic partner and NASA and STFC (UK) as international partners. It is operated by these agencies in cooperation with ESA and NSC (Norway). I would like to thank Editage (www.editage.jp) for English language editing.
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Nagashima, K. (2018). Local Helioseismology Analyses with Hinode/SOT Datasets. In: Shimizu, T., Imada, S., Kubo, M. (eds) First Ten Years of Hinode Solar On-Orbit Observatory. Astrophysics and Space Science Library, vol 449. Springer, Singapore. https://doi.org/10.1007/978-981-10-7742-5_17
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