Search Publications
Volcanic craters and cones in central Kachchh mainland, western India: Potential analogue for the Martian studies?
Chavan, Anil; Bhandari, Subhash
The role of pre-existing faults and fractures in shaping polygonal impact craters and its tectonic implications in the southern Margaritifer Terra region, Mars
Bhattacharya, Satadru; Dasgupta, Dipayan; Kundu, Abhik +2 more
The presence of polygonal-shaped craters, i.e., craters with complete or incomplete polygonal rims along with circular or elliptical outlines, on the surface of celestial bodies has been known for nearly a century. However, many investigations on their distribution and formation have not been carried out, until recently. Scientists have proposed t…
Simulation of photoelectron flux, electron density, emission rate and limb intensity of CO(a3π) Cameron bands in the Martian thermosphere: Comparisons with (1) SPICAM and IUVS observations and (2) other model calculations
Haider, S. A.; Thirupathaiah, P.; Masoom, J.
Using analytical yield spectrum approach based on Monte Carlo method, the current study calculated the photoelectron flux, electron density, emission rate and limb intensity of carbon monoxide (CO)(a3π) bands between altitudes 90 and 200 km. The observation conditions that prevailed when the spectroscopy for investigation of the charact…
Characterisation of surface topography and mineralogy of Cardanus and Krafft craters in the western Procellarum region of Moon
Singh, Deepali; Singh, Priyadarshini; Roy, Nidhi +1 more
The craters on the lunar surface represent unique morphological and mineralogical characteristics. Cardanus (13.2°N; 72.4°W) and Krafft craters (16.6°N; 72.6°W) present in the equatorial transition region of the Moon represents distinctive features. The morphology of crater is studied using high-resolution data of Narrow Angle Camera (NAC) and Wid…
Landform evolution of Tharsis Montes and Olympus Mons of Mars: Insights from morphometric, hypsometric and chronologic evidences
Ahmad, Adnan; Nair, Archana M.
We studied the growth and evolutionary history of four major volcanoes of the Tharsis Province based on morphometry, age and hypsometric studies. Shield volcanoes of Tharsis volcanic province demonstrate marginally dissimilar landform evolutionary trends. Arsia Mons is distinct with a single caldera of large diameter and showed the highest asymmet…
Retrieval of Martian ozone and dust from SPICAM spectrometer for MY27-MY28
Montmessin, Franck; Modak, Ashimananda; Sheel, Varun
Ozone (O3) is important in the stabilisation of CO_{{2}} in the Martian atmosphere and thus it is important to study the spatio-temporal variability of O_{{3}}. We retrieve two years of total columnar O_{{3}} from raw spectral data provided by the SPectroscopy for the Investigation of the Characteristics of the Atmosphere of Mars (SPICA…
Morphometric and rheological study of lunar domes of Marius Hills volcanic complex region using Chandrayaan-1 and recent datasets
Suresh, K.; Arya, A. S.; Rajasekhar, R. P. +10 more
Marius Hills volcanic complex is one of the most important regions on the lunar surface having an abundant number of volcanic features like domes and cones. Systematic mapping of 106 domes/cones in the Marius Hills region was carried out in this study using high-resolution orthoimage and digital elevation models of Chandrayaan-1 and Kaguya mission…
Compositional diversity of near-, far-side transitory zone around Naonobu, Webb and Sinus Successus craters: Inferences from Chandrayaan-1 Moon Mineralogy Mapper (M3) data
Bharti, Rishikesh; Ramakrishnan, D.; Singh, K. D.
This study investigated the potential of Moon Mineralogy Mapper (M3) data for studying compositional variation in the near-, far-side transition zone of the lunar surface. For this purpose, the radiance values of the M3 data were corrected for illumination and emission related effects and converted to apparent reflectance. Di…
Detection of Mg spinel lithologies on central peak of crater Theophilus using Moon Mineralogy Mapper (M3) data from Chandrayaan-1
Bhattacharya, S.; Kiran Kumar, A. S.; Chauhan, P. +3 more
Spectral reflectance data derived from Moon Mineralogy Mapper (M3) onboard India's Chandrayaan-1 has revealed Fe bearing Mg-spinel-rich lithology on central peaks of the crater Theophilus. These newly identified Fe bearing Mg-spinel-rich rock types are defined by their strong 2-µm absorption and lack of 1-µm absorptions in s…
Chandrayaan-1: Science goals
Bhandari, N.
The primary objectives of the Chandrayaan-1 mission are simultaneous chemical, mineralogical and topographic mapping of the lunar surface at high spatial resolution. These data should enable us to understand compositional variation of major elements, which in turn, should lead to a better understanding of the stratigraphic relationships between va…