78 citations · 161 across the 8 of their papers we have counts for
8 papers
Examining Uranus' zeta ring in Voyager 2 Wide-Angle-Camera Observations: Quantifying the Ring's Structure in 1986 and its Modifications prior to the Year 2007
M. M. Hedman, I. Regan, T. Becker +3
The zeta ring is the innermost component of the Uranian ring system. It is of scientific interest because its morphology changed significantly between the Voyager 2 encounter in 19…
New Insights into Variations in Enceladus Plume Particle Launch Velocities from Cassini-VIMS spectral data
H. Sharma, M. M. Hedman, S. Vahidinia
Enceladus' plume consists mainly of a mixture of water vapor and solid ice particles that may originate from a subsurface ocean. The physical processes underlying Enceladus' plume…
Kronoseismology VI: Reading the recent history of Saturn's gravity field in its rings
M. M. Hedman, P. D. Nicholson, M. El Moutamid +1
Saturn's C ring contains multiple structures that appear to be density waves driven by time-variable anomalies in the planet's gravitational field. Semi-empirical extensions of den…
Constraining low-altitude lunar dust using the LADEE-UVS data
H. Sharma, M. M. Hedman, D. H. Wooden +2
Studying lunar dust is vital to the exploration of the Moon and other airless planetary bodies. The Ultraviolet and Visible Spectrometer (UVS) on board the Lunar Atmosphere and Dus…
Changes in a Dusty Ringlet in the Cassini Division after 2010
M. M. Hedman, B. Bridges
A dusty ringlet designated R/2006 S3, also known as the "Charming Ringlet", is located around 119,940 km from the center of Saturn within the Laplace Gap in the Cassini Division. P…
New Measurements of Fine-Scale CMB Polarization Power Spectra from CAPMAP at Both 40 and 90 GHz
CAPMAP Collaboration, C. Bischoff, L. Hyatt +12
We present new measurements of the cosmic microwave background (CMB) polarization from the final season of the Cosmic Anisotropy Polarization MAPper (CAPMAP). The data set was obta…
New Limits on the Polarized Anisotropy of the Cosmic Microwave Background at Subdegree Angular Scales
M. M. Hedman, D. Barkats, J. O. Gundersen +3
We update the limit from the 90 GHz PIQUE ground-based polarimeter on the magnitude of any polarized anisotropy of the cosmic microwave radiation. With a second year of data, we ha…
A Limit on the Polarized Anisotropy of the Cosmic Microwave Background at Subdegree Angular Scales
M. M. Hedman, D. Barkats, J. O. Gundersen +2
A ground-based polarimeter, PIQUE, operating at 90 GHz has set a new limit on the magnitude of any polarized anisotropy in the cosmic microwave background. The combination of the s…