Aperture Synthesis Polarimetry of the Moon at 21 cm
نویسندگان
چکیده
منابع مشابه
Regolith properties in the south polar region of the Moon from 70-cm radar polarimetry
The south polar region of the Moon contains areas permanently shadowed from solar illumination, which may provide cold traps for volatiles such as water ice. Previous radar studies have emphasized the search for diagnostic polarization signatures of thick ice in areas close to the pole, but near-surface regolith properties and regional geology are also important to upcoming orbital studies of t...
متن کاملCompact Polarimetry at the Moon: The Mini-RF Radars
The Mini-RF radar aboard India’s lunar Chandrayaan-1 satellite [1] (2008-9) was the first polarimetric synthetic aperture radar (SAR) outside of Earth orbit. The architecture of that radar—and of its more advanced two-frequency sibling on NASA’s Lunar Reconnaissance Orbiter [2] (2009)—is hybrid dual-polarimetric [3][4]. This architecture is a form of compact polarimetry [5] in which the dual-re...
متن کاملDrifting subpulse survey at 21 cm
We present the statistical results of a systematic, unbiased search for subpulse modulation of 187 pulsars performed with the Westerbork Synthesis Radio Telescope (WSRT) in the Netherlands at an observing wavelength of 21 cm (Weltevrede et al. 2006a). We have increased the list of pulsars that show the drifting subpulse phenomenon by 42, indicating that more than 55% of the pulsars that show th...
متن کاملThe subpulse modulation properties of pulsars at 21 cm
We present the results of a systematic, unbiased search for subpulse modulation of 187 pulsars performed with the Westerbork Synthesis Radio Telescope (WSRT) in the Netherlands at an observing wavelength of 21 cm. Using new observations and archival WSRT data we have expanded the list of pulsars which show the drifting subpulse phenomenon by 42, indicating that at least one in three pulsars exh...
متن کاملApplications of Synthetic Aperture Radar Polarimetry
The work reported in this paper was carried out under an ESA contract (15600/01/I-LG) with the purpose of demonstrating the potential of polarimetric SAR compared with single-polarization data for some key application areas to support the decisions on future satellite SAR systems. Three key application areas were identified (a) SAR polarimetry for agriculture classification, (b) SAR polarimetry...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1972
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/160.2.139