1.4k citations · 1.6k across the 8 of their papers we have counts for
8 papers
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…
Magnetic field vector retrieval with the Helioseismic and Magnetic Imager
J. M. Borrero, S. Tomczyk, A. Norton +5
We investigate the accuracy to which we can retrieve the solar photospheric magnetic field vector using the Helioseismic and Magnetic Imager (HMI) that will fly onboard of the Sola…
Magnetic field vector retrieval with HMI
J. M. Borrero, S. Tomczyk, A. Norton +5
The Helioseismic and Magnetic Imager (HMI), on board the Solar Dynamics Observatory (SDO), will begin data acquisition in 2008. It will provide the first full disk, high temporal c…
Characteristics of Magnetohydrodynamic Oscillations Observed with Michelson Doppler Imager
A. A. Norton, R. K. Ulrich, R. I. Bush +1
We report on the spatial distribution of magnetogram oscillatory power and phase angles between velocity and magnetogram signals as observed with the Michelson Doppler Imager. The…