activity
20122023
most citedAmmonium salts are a reservoir of nitrogen on a cometary nucleus and possibly on some asteroids

180 citations · 962 across the 29 of their papers we have counts for

collaborators

29 papers

astro-ph.EP2023

The composition of Saturn's rings

Kelly E. Miller, Gianrico Filacchione, Jeffrey Cuzzi +12

The origin and evolution of Saturn's rings is critical to understanding the Saturnian system as a whole. Here, we discuss the physical and chemical composition of the rings, as a f…

astro-ph.EP2023★ 1 cited

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…

astro-ph.EP2023★ 17 cited

Volatile exposures on the 67P/Churyumov-Gerasimenko nucleus

S. Fornasier, H. V. Hoang, M. Fulle +2

We present the most extensive catalog of exposures of volatiles on the 67P/Churyumov-Gerasimenko nucleus generated from observations acquired with the OSIRIS cameras on board the R…

astro-ph.EP2023

Ceres as seen by VIR/ Dawn: spectral modeling and laboratory measurements suggest altered and pristine silicates within carbon chemistry

Andrea Raponi, Marco Ferrari, Maria Cristina De Sanctis +3

The NASA/Dawn mission has acquired an unprecedented amount of data from the surface of the dwarf planet Ceres, providing a thorough characterization of its surface composition. The…

astro-ph.HE2022

Jet Gravitational Waves

Tsvi Piran

The acceleration of a jet to relativistic velocities produces a unique memory type gravitational waves (GW) signal: {\it Jet-GW}. I discuss here resent result concerning properties…

astro-ph.EP2021

Saturn's icy satellites investigated by Cassini -- VIMS. V. Spectrophotometry

G. Filacchione, M. Ciarniello, E. D'Aversa +6

Albedo, spectral slopes, and water ice band depths maps for the five midsized saturnian satellites Mimas, Enceladus, Tethys, Dione, and Rhea have been derived from Cassini-Visual a…

astro-ph.EP2021★ 3 cited

The surface of (4) Vesta in visible light as seen by Dawn/VIR

B. Rousseau, M. C. De Sanctis, A. Raponi +9

We analyzed the surface of Vesta at visible wavelengths, using the data of the Visible and InfraRed mapping spectrometer (VIR) on board the Dawn spacecraft. We mapped the variation…

astro-ph.EP2020★ 13 cited

Bayesian analysis of Juno/JIRAM's NIR observations of Europa

Ishan Mishra, Nikole Lewis, Jonathan Lunine +4

Juno spacecraft's spectrometer JIRAM recently observed the moon Europa in the 2-5 μm wavelength region. Here we present analysis of the average spectrum of a set of observations ne…

astro-ph.EP2020★ 4 cited

Correction of the VIR-visible data set from the Dawn mission at Vesta

B. Rousseau, M. C De Sanctis, A. Raponi +7

This work describes the correction method applied to the dataset acquired at the asteroid (4) Vesta by the visible channel of the visible and infrared mapping spectrometer. The ris…

astro-ph.EP2020

A probabilistic approach to determination of Ceres' average surface composition from Dawn VIR and GRaND data

H. Kurokawa, B. L. Ehlmann, M. C. De Sanctis +6

The Visible-Infrared Mapping Spectrometer (VIR) on board the Dawn spacecraft revealed that aqueous secondary minerals -- Mg-phyllosilicates, NH4-bearing phases, and Mg/Ca carbonate…

astro-ph.EP2020★ 12 cited

The surface of (1) Ceres in visible light as seen by Dawn/VIR

B. Rousseau, M. C. De Sanctis, A. Raponi +9

We study the surface of Ceres at visible wavelengths, as observed by the Visible and InfraRed mapping spectrometer (VIR) onboard the Dawn spacecraft, and analyze the variations of…

astro-ph.EP2020★ 64 cited

Infrared detection of aliphatic organics on a cometary nucleus

A. Raponi, M. Ciarniello, F. Capaccioni +28

The ESA Rosetta mission has acquired unprecedented measurements of comet 67/P-Churyumov-Gerasimenko (hereafter 67P) nucleus surface, whose composition, as determined by in situ and…

astro-ph.EP2020★ 180 cited

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…

astro-ph.IM2019★ 12 cited

Correction of the VIR-Visible data set from the Dawn mission

B. Rousseau, A. Raponi, M. Ciarniello +6

Data acquired at Ceres by the visible channel of the Visible and InfraRed mapping spectrometer (VIR) on board the NASA Dawn spacecraft are affected by the temperatures of both the…

astro-ph.EP2019★ 14 cited

Diurnal variation of dust and gas production in comet 67P/Churyumov-Gerasimenko at the inbound equinox as seen by OSIRIS and VIRTIS-M on board Rosetta

C. Tubiana, G. Rinaldi, C. Güttler +53

On 27 Apr 2015, when 67P/C-G was at 1.76 au from the Sun and moving towards perihelion, the OSIRIS and VIRTIS-M instruments on Rosetta observed the evolving dust and gas coma durin…

astro-ph.EP2019★ 23 cited

VIRTIS-H observations of comet 67P's dust coma: spectral properties and color temperature variability with phase and elevation

D. Bockelée-Morvan, C. Leyrat, S. Erard +14

We analyze 2-5 micrometre spectroscopic observations of the dust coma of comet 67P/Churyumov-Gerasimenko obtained with the VIRTIS-H instrument onboard Rosetta from 3 June to 29 Oct…

astro-ph.EP2018★ 33 cited

Spectrophotometric Modeling and Mapping of Ceres

Jian-Yang Li, Stefan E. Schröder, Stefano Mottola +8

We report a comprehensive analysis of the global spectrophotometric properties of Ceres using Dawn Framing Camera images collected from April to June 2015 during the RC3 and Survey…

astro-ph.EP2018★ 11 cited

Ceres' opposition effect observed by the Dawn framing camera

Stefan E. Schröder, Jian-Yang Li, Marc D. Rayman +12

The surface reflectance of planetary regoliths may increase dramatically towards zero phase angle, a phenomenon known as the opposition effect (OE). Two physical processes that are…

astro-ph.EP2018★ 8 cited

The SSDC contribution to the improvement of knowledge by means of 3D data projections of minor bodies

Angelo Zinzi, Mauro Ciarniello, Vincenzo Della Corte +6

The latest developments of planetary exploration missions devoted to minor bodies required new solutions to correctly visualize and analyse data acquired over irregularly shaped bo…

astro-ph.EP2017★ 35 cited

Laboratory simulations of the Vis-NIR spectra of comet 67P using sub-μm sized cosmochemical analogues

Batiste Rousseau, Stéphane Érard, Pierre Beck +15

Laboratory spectral measurements of relevant analogue materials were performed in the framework of the Rosetta mission in order to explain the surface spectral properties of comet…

astro-ph.EP2017★ 83 cited

Resolved Spectrophotometric Properties of the Ceres Surface from Dawn Framing Camera Images

S. E. Schröder, S. Mottola, U. Carsenty +9

We present a global spectrophotometric characterization of the Ceres surface using Dawn Framing Camera (FC) images. We identify the photometric model that yields the best results f…

astro-ph.EP2016★ 39 cited

The temporal evolution of exposed water ice-rich areas on the surface of 67P/Churyumov-Gerasimenko: spectral analysis

A. Raponi, M. Ciarniello, F. Capaccioni +16

Water ice-rich patches have been detected on the surface of comet 67P/Churyumov-Gerasimenko by the VIRTIS hyperspectral imager on-board the Rosetta spacecraft, since the orbital in…

astro-ph.EP2016★ 45 cited

Detection of exposed HO ice on the nucleus of comet 67P/Churyumov-Gerasimenko

M. A. Barucci, G. Filacchione, S. Fornasier +42

Since the orbital insertion of the Rosetta spacecraft, comet 67P/Churyumov-Gerasimenko (67P/C-G) has been mapped by OSIRIS camera and VIRTIS spectro-imager, producing a huge quanti…

astro-ph.EP2016★ 76 cited

Spectrophotometric properties of dwarf planet Ceres from the VIR spectrometer on board the Dawn mission

M. Ciarniello, M. C. De Sanctis, E. Ammannito +14

We study the spectrophotometric properties of dwarf planet Ceres in the VIS-IR spectral range by means of hyper-spectral images acquired by the VIR imaging spectrometer on board th…