180 citations · 443 across the 19 of their papers we have counts for
19 papers
Identification of Ammonium Salts on Comet 67P/C-G Surface from Infrared VIRTIS/Rosetta Data Based on Laboratory Experiments. Implications and Perspectives
Olivier Poch, Istiqomah Istiqomah, Eric Quirico +29
The nucleus of comet 67P/Churyumov-Gerasimenko exhibits a broad spectral reflectance feature around 3.2 m, which is omnipresent in all spectra of the surface, and whose attribut…
Cross-section of the production on natural molybdenum at the bremsstrahlung end-point energy up to 95 MeV
I. S. Timchenko, O. S. Deiev, S. M. Olejnik +4
The photoproduction of Nb on was studied using the electron beam of the LUE-40 linac RDC "Accelerator" NSC KIPT. Measurements were performed using…
Study the isomeric ratios in photonuclear experiments on the LUE-40 linac RDC "Accelerator" NSC KIPT
I. S. Timchenko, O. S. Deiev, S. M. Olejnik +4
The results of the photoproduction of isomeric pairs from the (γ,xn) and (γ,pxn) reactions on nuclei from Zr up to Ta at the bremsstrahlung end-point energy range 30-100 MeV are sy…
Isomeric pair in photonuclear reactions on Mo at end-point bremsstrahlung energy of 35-95 MeV
I. S. Timchenko, O. S. Deiev, S. M. Olejnik +5
The Nb photonuclear reaction was studied using the electron beam from the NSC KIPT linear accelerator LUE-40. Experiment was performed u…
Photonuclear reactions cross-sections at energies up to 100 MeV for different experimental setups
O. S. Deiev, I. S. Timchenko, S. M. Olejnik +6
In experiments on the electron linac LUE-40 of RDC "Accelerator" NSC KIPT, the flux-averaged cross-sections of photonuclear reactions…
Photonuclear reactions and cross-sections in the energy range = 35-94 MeV
O. S. Deiev, I. S. Timchenko, S. M. Olejnik +5
The bremsstrahlung flux-averaged cross-sections for the photonuclear reactions , ${^{63}\rm{Cu}}(γ,n)^{62}\rm{Cu…
Photonuclear reactions Ni(,xn)Ni and Ni(,xn)Ni in the energy range E = 35...94 MeV
O. S. Deiev, I. S. Timchenko, S. M. Olejnik +5
The total bremsstrahlung flux-averaged cross-sections <(E)> for the photonuclear reactions Ni(,xn)Ni and Ni(,xn)Ni have been measure…
Water abundance at the surface of C-complex main-belt asteroids
Pierre Beck, Jolantha Eschrig, Sandra Potin +4
Recently published space-based observations of main-belt asteroids with the AKARI telescope provide a full description of the 3 μm band, related to the presence of OH bearing miner…
Mineralogy, chemistry and composition of organic compounds in the fresh carbonaceous chondrite Mukundpura: CM1 or CM2?
S. Potin, P. Beck, L. Bonal +7
We present here several laboratory analyses performed on the freshly fallen Mukundpura CM chondrite. Results of infrared transmission spectroscopy, thermogravimetry analysis and re…
Low-phase spectral reflectance and equivalent geometric albedo of meteorites powders
Pierre Beck, Bernard Schmitt, Sandra Potin +2
The reflectance of a particulate surface depends on the phase angle at which it is observed. This is true for laboratory measurements on powders of natural materials as well as rem…
Style and intensity of hydration among C-complex asteroids: a comparison to dessicated carbonaceous chondrites
S. Potin, P. Beck, F. Usui +3
Here we report a comparison between reflectance spectroscopy of meteorites under asteroidal environment (high vacuum and temperature) and Main Belt and Near Earth Asteroids spectra…
Ammonium salts are a reservoir of nitrogen on a cometary nucleus and possibly on some asteroids
O. Poch, I. Istiqomah, E. Quirico +29
The measured nitrogen-to-carbon ratio in comets is lower than for the Sun, a discrepancy which could be alleviated if there is an unknown reservoir of nitrogen in comets. The nucle…
SHADOWS: a spectro-gonio radiometer for bidirectional reflectance studies of dark meteorites and terrestrial analogs: design, calibrations, and performances on challenging surfaces
S. Potin, O. Brissaud, P. Beck +5
We have developed a new spectro-gonio radiometer, SHADOWS, to study in the laboratory the bidirectional reflectance distribution function of dark and precious samples. The instrume…
A model of the 3-μm hydration band with Exponentially Modified Gaussian (EMG) profiles: application to hydrated chondrites and asteroids
S. Potin, S. Manigand, P. Beck +2
We present here a new method to model the shape of the 3-μm absorption band in the reflectance spectra of meteorites and small bodies. The band is decomposed into several OH/H2O co…
Some things special about NEAs: Geometric and environmental effects on the optical signatures of hydration
S. Potin, P. Beck, B. Schmitt +1
Here were report on a laboratory study aiming to reproduce specificities of near-Earth Asteroid. We study how the elevated surface temperature, their surface roughness (rock or reg…
A detector interferometric calibration experiment for high precision astrometry
A. Crouzier, F. Malbet, F. Henault +23
Context: Exoplanet science has made staggering progress in the last two decades, due to the relentless exploration of new detection methods and refinement of existing ones. Yet ast…
The latest results from DICE (Detector Interferometric Calibration Experiment)
A. Crouzier, F. Malbet, F. Henault +23
Theia is an astrometric mission proposed to ESA in 2014 for which one of the scientific objectives is detecting Earth-like exoplanets in the habitable zone of nearby solar-type sta…
Metrology calibration and very high accuracy centroiding with the NEAT testbed
A. Crouzier, F. Malbet, O. Preis +19
NEAT is an astrometric mission proposed to ESA with the objectives of detecting Earth-like exoplanets in the habitable zone of nearby solar-type stars. NEAT requires the capability…
First experimental results of very high accuracy centroiding measurements for the neat astrometric mission
A. Crouzier, F. Malbet, O. Preis +19
NEAT is an astrometric mission proposed to ESA with the objectives of detecting Earth-like exoplanets in the habitable zone of nearby solar-type stars. NEAT requires the capability…