Zobrazeno 1 - 10
of 234
pro vyhledávání: '"Emery, Joshua P."'
Publikováno v:
Scientific Reports (2024)
The asteroid (142) Polana is classified as a B-type asteroid located in the inner Main Belt. This asteroid is the parent of the New Polana family, which has been proposed to be the likely source of primitive near-Earth asteroids such as the B-type as
Externí odkaz:
http://arxiv.org/abs/2406.19902
Publikováno v:
2024 Planet. Sci. J. 5 108
Primitive asteroids with low albedos and red slopes in the visible and near infrared (VNIR) are found in both the Main Belt and the Jupiter Trojan clouds. In order to determine whether the VNIR spectral similarities of primitive Main Belt asteroids a
Externí odkaz:
http://arxiv.org/abs/2404.19388
Autor:
Wong, Ian, Brown, Michael E., Emery, Joshua P., Binzel, Richard P., Grundy, William M., Marchi, Simone, Martin, Audrey C., Noll, Keith S., Sunshine, Jessica M.
Publikováno v:
PSJ, 5, 87 (2024)
We present observations obtained with the Near Infrared Spectrograph on JWST of the five Jupiter Trojans that will be visited by the Lucy spacecraft -- the Patroclus-Menoetius binary, Eurybates, Orus, Leucus, and Polymele. The measured 1.7-5.3 $\mu$m
Externí odkaz:
http://arxiv.org/abs/2311.11531
In order to search for evidence of hydration on M-type asteroid (16) Psyche, we observed this object in the 3 mu m spectral region using the long-wavelength cross-dispersed (LXD: 1.9-4.2 mu m) mode of the SpeX spectrograph/imager at the NASA Infrared
Externí odkaz:
http://hdl.handle.net/10150/622751
http://arizona.openrepository.com/arizona/handle/10150/622751
http://arizona.openrepository.com/arizona/handle/10150/622751
Publikováno v:
Nat Astron (2023)
Low-albedo asteroids preserve a record of the primordial solar system planetesimals and the conditions in which the solar nebula was active. However, the origin and evolution of these asteroids are not well-constrained. Here we measured visible and n
Externí odkaz:
http://arxiv.org/abs/2302.08657
Publikováno v:
Planet. Sci. J. 3 190 (2022)
The recently launched Lucy mission aims to understand the dynamical history of the Solar System by examining the Jupiter Trojans, a population of primitive asteroids co-orbital with Jupiter. Using the G280 grism on the Hubble Space Telescope's Wide F
Externí odkaz:
http://arxiv.org/abs/2207.11390
Autor:
Rivkin, Andrew S., Emery, Joshua P., Howell, Ellen S., Kareta, Theodore, Noonan, John W., Richardson, Matthew, Sharkey, Benjamin N. L., Sickafoose, Amanda A., Woodney, Laura M., Cartwright, Richard J., Lindsay, Sean, Mcclure, Lucas T.
We present evidence, via a large survey of 191 new spectra along with previously-published spectra, of a divide in the 3-$\mu$m spectral properties of the low-albedo asteroid population. One group ("Sharp-types" or ST, with band centers $<$ 3 $\mu$m)
Externí odkaz:
http://arxiv.org/abs/2205.09166
Autor:
Cartwright, Richard J., Nordheim, Tom A., DeColibus, David, Grundy, William M., Holler, Bryan J., Beddingfield, Chloe B., Sori, Michael M., Lucas, Michael P., Elder, Catherine M., Regoli, Leonardo H., Cruikshank, Dale P., Emery, Joshua P., Leonard, Erin J., Cochrane, Corey J.
CO2 ice is present on the trailing hemisphere of Ariel but is mostly absent from its leading hemisphere. The leading/trailing hemispherical asymmetry in the distribution of CO2 ice is consistent with radiolytic production of CO2, formed by charged pa
Externí odkaz:
http://arxiv.org/abs/2111.14223
Autor:
MacLennan, Eric M., Emery, Joshua P.
Publikováno v:
The Planetary Science Journal (2022) Volume 3, Number 2
Asteroid surfaces are subjected to mechanical weathering processes that result in the development and evolution of regolith. Two proposed mechanisms--impact bombardment and thermal fatigue--have been proposed as viable and dominant weathering process
Externí odkaz:
http://arxiv.org/abs/2107.06255
Autor:
Emery, Joshua P.
The present surface composition of primitive objects provides clues to understanding the conditions under which the solar system formed. Characterization of the inner solar nebula progresses rapidly due to remote studies of asteroid and planetary sur
Externí odkaz:
http://hdl.handle.net/10150/280170