1.4k citations · 1.6k across the 8 of their papers we have counts for
5 papers · 1 filter
On-Orbit Performance of the Helioseismic and Magnetic Imager Instrument onboard the Solar Dynamics Observatory
J. Todd Hoeksema, Charles S. Baldner, Rock I. Bush +2
The Helioseismic and Magnetic Imager (HMI) instrument is a major component of NASA's Solar Dynamics Observatory (SDO) spacecraft. Since beginning normal science operations on 1 May…
A Poynting-Robertson-like drag at the Sun's surface
Ian Cunnyngham, Marcelo Emilio, Jeff Kuhn +2
The Sun's internal rotation Ω(r,Θ) has previously been measured using helioseismology techniques and found to be a complex function of co-latitude, θ, and radius, r. From helioseis…
Observables Processing for the Helioseismic and Magnetic Imager Instrument on the Solar Dynamics Observatory
Sebastien Couvidat, Jesper Schou, J. Todd Hoeksema +6
NASA's Solar Dynamics Observatory (SDO) was launched 11 February 2010 with 3 instruments on board, including the Helioseismic and Magnetic Imager (HMI). Since beginning normal oper…
Indications of r-mode Oscillations in SOHO/MDI Solar Radius Measurements
P. A. Sturrock, R. Bush, D. O. Gough +1
Analysis of solar radius measurements acquired by the Michelson Doppler Imager on the SOHO spacecraft supports previously reported evidence of solar internal r-mode oscillations in…
The Interface Region Imaging Spectrograph (IRIS)
B. De Pontieu, A. M. Title, J. Lemen +85
The Interface Region Imaging Spectrograph (IRIS) small explorer spacecraft provides simultaneous spectra and images of the photosphere, chromosphere, transition region, and corona…