1 Hinode Coordinated Observations: Plasma Composition Photospheric composition ~ 1 in coronal hole (CH) -> fast wind Coronal composition ~1.5-3 in active.

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Presentation transcript:

1 Hinode Coordinated Observations: Plasma Composition Photospheric composition ~ 1 in coronal hole (CH) -> fast wind Coronal composition ~1.5-3 in active region (AR) -> slow wind XRT EIS Composition Map Linking solar wind with source regions using plasma composition. Baker, Brooks, et al. 2013, ApJ 778, 69 Contributed by the Hinode/EIS team through the University College London / Mullard Space Sciences Laboratory

2 Hinode Coordinated Observations: Plasma Composition Composition of sigmoid channel in erupting active region – topology clues? EIS Composition Map Inverse S-channel of photospheric material within the active region where significant flux cancellation takes place. A sigmoid/flux rope forms and erupts as a CME (Baker et al 2012). Scenario for build up of a flux rope where the bottom of the flux rope is located low down and has a Bald Patch (BP) topology (Green et al 2011 and Green & Kliem 2009). ->Space weather implications - allows identification of early build up of a flux rope and potential CME. Baker, Brooks, et al. 2013, ApJ 778, 69 Sigmoid - XRT Contributed by the Hinode/EIS team through the University College London / Mullard Space Sciences Laboratory Sigmoid - EIS

3 Hinode Coordinated Observations: Plasma Composition Composition evolution in a decaying active region. From 4 th to 6 th January 2012, plasma composition evolves from coronal to photospheric in AR especially around supergranular cell boundary as repeated flux emergence supplies photospheric plasma to coronal loops via magnetic reconnection. Baker, Brooks, et al. 2014, in prep. Contributed by the Hinode/EIS team through the University College London / Mullard Space Sciences Laboratory