The locations of Parker Solar Probe (4 - 18 June 2020), mapped back to the Sun using the Current Sheet Source Surface model (CSSS, developed by Zhao and Hoeksema, 1995, see also Poduval and Zhao, 2014, Poduval, 2016, Chandorkar et al., 2020), and superimposed on an SDO/HMI synoptic magnetogram (Carrington rotation 2231, downsampled to 1 degree resolution). The red triangles are the map back locations at 15 R⊙ (the CSSS source surface) assuming a constant radial solar wind speed of 395 km/s. These are joined to their photospheric footpoints (blue filled circles) by thin gray lines to indicate connectivity. The CSSS deduced open magnetic field regions (coronal holes) are shown in white and gray in Northern and Southern hemispheres respectively, with the magnetic polarity inversion line (heliospheric current sheet) marked with dark gray plus symbols. Figure courtesy Poduval et al. (2020). The locations of Parker Solar Probe (4 - 18 June 2020), mapped back to the Sun using the Current Sheet Source Surface model (CSSS, developed by Zhao and Hoeksema, 1995, see also Poduval and Zhao, 2014, Poduval, 2016, Chandorkar et al., 2020), and superimposed on an SDO/HMI synoptic magnetogram (Carrington rotation 2231, downsampled to 1 degree resolution). The red triangles are the map back locations at 15 R⊙ (the CSSS source surface) assuming a constant radial solar wind speed of 395 km/s. These are joined to their photospheric footpoints (blue filled circles) by thin gray lines to indicate connectivity. The CSSS deduced open magnetic field regions (coronal holes) are shown in white and gray in Northern and Southern hemispheres respectively, with the magnetic polarity inversion line (heliospheric current sheet) marked with dark gray plus symbols.
Poduval et al. (2020)
The Daniel K. Inouye Solar Telescope (DKIST) will revolutionize our ability to measure, understand and model the basic physical processes that control the structure and dynamics of the Sun and its atmosphere. The first-light DKIST images, released publicly on 29 January 2020, only hint at the extraordinary capabilities which will accompany full commissioning of the five facility instruments. With this Critical Science Plan (CSP) we attempt to anticipate some of what those capabilities will enable, providing a snapshot of some of the scientific pursuits that the Daniel K. Inouye Solar Telescope hopes to engage as start-of-operations nears. The work builds on the combined contributions of the DKIST Science Working Group (SWG) and CSP Community members25, who generously shared their experiences, plans, knowledge and dreams. Discussion is primarily focused on those issues to which DKIST will uniquely contribute.