50 citations · 194 across the 10 of their papers we have counts for
12 papers
Physical characterization of Earth's quasi-satellite 2025 PN7
Grigori Fedorets, Zuri Gray, Mikael Granvik +1
A hypothetical origin as lunar ejecta for Earth's quasi-satellites (QS) has gained initial support in recent years, but there is scarce photometric and/or spectroscopic data to sup…
Polarimetric Behaviour of (3200) Phaethon: New Observations with Implications for Surface Heterogeneity
Zuri Gray, Mikko Vuori, Eric MacLennan +4
The near-Earth asteroid (3200) Phaethon exhibits unusually high linear polarisation at large phase angles. Previous observations revealed a significant difference between apparitio…
Nordic-based observations of binary asteroid (163693) Atira reveal a hydrated CM chondrite composition
Eric M. MacLennan, Grigori Fedorets, Zuri Gray +5
We present photometric, spectroscopic, and polarimetric observations of (163693) Atira collected on the night of 05 March 2024. A dual-band lightcurve acquired in the V and R_C fil…
Thermal decomposition as an activity driver of near-Earth asteroid (3200) Phaethon
Eric MacLennan, Mikael Granvik
Near-Earth asteroid (3200) Phaethon is an active asteroid with a dust tail repeatedly observed over the past decade for 3 days during each perihelion passage down to a heliocentric…
Evidence of surface heterogeneity on active asteroid (3200) Phaethon
Eric MacLennan, Sean Marshall, Mikael Granvik
Thermal infrared emission and thermophysical modeling techniques are powerful tools in deciphering the surface properties of asteroids. The near-Earth asteroid (3200) Phaethon is a…
Thermophysical Investigation of Asteroid Surfaces II: Factors Influencing Grain Size
Eric M. MacLennan, Joshua P. Emery
Asteroid surfaces are subjected to mechanical weathering processes that result in the development and evolution of regolith. Two proposed mechanisms--impact bombardment and thermal…
Thermophysical Investigation of Asteroid Surfaces I: Characterization of Thermal Inertia
Eric M. MacLennan, Joshua P. Emery
The thermal inertia of an asteroid is an indicator of the thermophysical properties of the regolith and is determined by the size of grains on the surface. Previous thermophysical…
Dynamical Evolution and Thermal History of Asteroids (3200) Phaethon and (155140) 2005 UD
Eric M. MacLennan, Athanasia Toliou, Mikael Granvik
The near-Earth objects (NEOs) (3200) Phaethon and (155140) 2005 UD are thought to share a common origin, with the former exhibiting dust activity at perihelion that is thought to d…
Thermophysical Modeling of Asteroid Surfaces using Ellipsoid Shape Models
Eric M. MacLennan, Joshua P. Emery
Thermophysical Models (TPMs), which have proven to be a powerful tool in the interpretation of the infrared emission of asteroid surfaces, typically make use of a priori obtained s…
Search for the Return of Activity in Active Asteroid 176P/LINEAR
Henry H. Hsieh, Larry Denneau, Alan Fitzsimmons +18
We present the results of a search for the reactivation of active asteroid 176P/LINEAR during its 2011 perihelion passage using deep optical observations obtained before, during, a…
The Nucleus of Main-Belt Comet 259P/Garradd
Eric MacLennan, Henry Hsieh
We present observations of the main-belt comet 259P/Garradd, previously known as P/2008 R1 (Garradd), obtained in 2011 and 2012 using the Gemini North Telescope on Mauna Kea in Haw…
Observational and Dynamical Characterization of Main-Belt Comet P/2010 R2 (La Sagra)
Henry H. Hsieh, Bin Yang, Nader Haghighipour +36
We present observations of comet-like main-belt object P/2010 R2 (La Sagra) obtained by Pan-STARRS 1 and the Faulkes Telescope-North on Haleakala in Hawaii, the University of Hawai…