scholarly journals Remote-sensing characterization of major Solar System bodies with the Twinkle space telescope

2019 ◽  
Vol 5 (01) ◽  
pp. 1 ◽  
Author(s):  
Billy Edwards ◽  
Giorgio Savini ◽  
Giovanna Tinetti ◽  
Marcell Tessenyi ◽  
Claudio Arena ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Solar System ◽  
Space Telescope ◽  
Solar System Bodies

scholarly journals James Webb Space Telescope Observations of Stellar Occultations by Solar System Bodies and Rings

2016 ◽  
Vol 128 (959) ◽  
pp. 018011 ◽  
Author(s):  
P. Santos-Sanz ◽  
R. G. French ◽  
N. Pinilla-Alonso ◽  
J. Stansberry ◽  
Z-Y. Lin ◽  
...  
Keyword(s):  
Solar System ◽  
Space Telescope ◽  
James Webb Space Telescope ◽  
Stellar Occultations ◽  
Solar System Bodies

Electromagnetic characterization of a crushed L-chondrite for subsurface radar investigations of solar system bodies

Icarus ◽  
2021 ◽  
pp. 114800
Author(s):  
Alessandro Brin ◽  
Sebastian Emanuel Lauro ◽  
Barbara Cosciotti ◽  
Elisabetta Mattei ◽  
Elena Pettinelli
Keyword(s):  
Solar System ◽  
Solar System Bodies

scholarly journals DEEP-South: Automated Observation Scheduling, Data Reduction and Analysis Software Subsystem

2015 ◽  
Vol 10 (S318) ◽  
pp. 311-312
Author(s):  
Hong-Suh Yim ◽  
Myung-Jin Kim ◽  
Young-Ho Bae ◽  
Hong-Kyu Moon ◽  
Young-Jun Choi ◽  
...  
Keyword(s):  
Solar System ◽  
Data Reduction ◽  
Primary Objective ◽  
Physical Characterization ◽  
Deep South ◽  
Human Intervention ◽  
Analysis Software ◽  
Solar System Bodies ◽  
Automated Observation

AbstractWe started ‘DEep Ecliptic Patrol of the Southern sky’ (DEEP-South, DS) (Moon et al. 2015) in late 2012, and conducted test runs with the first Korea Microlensing Telescope Network (KMTNet) (Park et al. 2012), a 1.6 m telescope with 18k x 18k CCD stationed at CTIO in early 2015. While the primary objective of DEEP-South is the physical characterization of small Solar System bodies, it is also expected to discover a large number of such bodies, many of them previously unknown. An automated observation scheduling, data reduction and analysis software subsystem called ‘DEEP-South Scheduling and Data reduction System’ (DS SDS) is thus being designed and implemented to enable observation planning, data reduction and analysis with minimal human intervention.

scholarly journals Linear spectropolarimetry: a new tool for the physical characterization of asteroids

2014 ◽  
Vol 10 (S305) ◽  
pp. 319-324
Author(s):  
S. Bagnulo ◽  
A. Cellino ◽  
M. F. Sterzik
Keyword(s):  
Remote Sensing ◽  
Solar System ◽  
Linear Polarization ◽  
Scattered Light ◽  
Wavelength Dependence ◽  
Reflectance Spectra ◽  
The Moon ◽  
Polarization Spectra ◽  
Reflectance Measurements

AbstractThe surfaces of the atmosphere-less objects of our solar system are traditionally probed via reflectance measurements and/or broadband linear polarimetry. Little attention has been paid so far to the wavelength dependence of the linear polarization of the scattered light. We decided to explore the potential of spectropolarimetry as a remote sensing tool for asteroids in addition to the more traditional reflectance measurements, and we carried out a spectropolarimetric survey of asteroids – to our best knolwedge, the first of its kind. We observed a sample of asteroids of different albedo and taxonomic classes, as well as a few regions at the limb of the Moon. We show that objects exhibiting similar reflectance spectra may display totally different polarization spectra, and we suggest that both intensity and polarization spectra should be used for asteroid classification. We also found that in some cases the Umov law is violated, that is, in contrast to what is expected from simple physical considerations, the fraction of linear polarization and the reflectance spectra may be correlated positively. We conclude that future modelling attempts of the surface structure of asteroids should be aimed at explaining both reflectance and polarization spectra.

scholarly journals Towards polarimetry as a tool for the detection of extra-terrestrial life

2014 ◽  
Vol 10 (S305) ◽  
pp. 346-350 ◽  
Author(s):  
Stefano Bagnulo ◽  
Michael F. Sterzik ◽  
Alberto Cellino
Keyword(s):  
Remote Sensing ◽  
Solar System ◽  
Circular Polarization ◽  
Diagnostic Tool ◽  
Diffuse Reflectance ◽  
Laboratory Data ◽  
High Signal ◽  
Polarization Measurements ◽  
Terrestrial Life

AbstractLinear broadband polarimetry is used to characterize the objects of our solar system, and has also been proposed as a diagnostic tool for the atmospheres of exo-solar planets. Homochirality characterizes life as we know it and induces circular polarization in the diffuse reflectance spectra of biotic material. Hence it has been suggested that circular polarimetry may be used as a remote sensing tool for the search of extra-terrestrial life. With this motivation in mind we have decided to explore the potential of both linear and circular spectropolarimetry as a diagnostic tool for remote sensing of biotic material. We have used the calibration unit of the EFOSC2 instrument of the La Silla Observatory to obtain low resolution, but high signal to noise circular and linear spectropolarimetric measurements of a number of inorganic and organic materials. We then compare our “laboratory data” with spectropolarimetric observations of atmosphere-less bodies of our solar system and of Earthshine obtained with instruments very similar to that one used for our laboratory samples. We conclude that linear polarization measurements are more suitable than circular polarization measurements for the characterization of planetary surfaces and atmospheres, and for the search of extra-terrestrial life.

scholarly journals Lunar-like silicate material forms the Earth quasi-satellite (469219) 2016 HO3 Kamoʻoalewa

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Benjamin N. L. Sharkey ◽  
Vishnu Reddy ◽  
Renu Malhotra ◽  
Audrey Thirouin ◽  
Olga Kuhn ◽  
...  
Keyword(s):  
Solar System ◽  
Reflectance Spectrum ◽  
Space Weathering ◽  
The Sun ◽  
Silicate Material ◽  
Lunar Material ◽  
The Earth ◽  
Solar System Bodies ◽  
Near Earth Objects

AbstractLittle is known about Earth quasi-satellites, a class of near-Earth small solar system bodies that orbit the sun but remain close to the Earth, because they are faint and difficult to observe. Here we use the Large Binocular Telescope (LBT) and the Lowell Discovery Telescope (LDT) to conduct a comprehensive physical characterization of quasi-satellite (469219) Kamoʻoalewa and assess its affinity with other groups of near-Earth objects. We find that (469219) Kamoʻoalewa rotates with a period of 28.3 (+1.8/−1.3) minutes and displays a reddened reflectance spectrum from 0.4–2.2 microns. This spectrum is indicative of a silicate-based composition, but with reddening beyond what is typically seen amongst asteroids in the inner solar system. We compare the spectrum to those of several material analogs and conclude that the best match is with lunar-like silicates. This interpretation implies extensive space weathering and raises the prospect that Kamo’oalewa could comprise lunar material.

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