Near-infrared Spectral Homogeneity of the Didymos System Before and After the DART Impact*

Abstract We spectroscopically characterized the Didymos system, target of the Double Asteroid Redirection Test (DART)/Light Italian Cubesat for Imaging of Asteroids (LICIACube) space mission, close in time to the DART impact event, during six nights between 2022 August and November at Telescopio Nazionale Galileo. Here, we show that near-infrared (NIR) spectra (0.75–2.25 μ m) look mostly similar within the same night and between different nights. They are in good agreement with the only spectrum previously available in the literature, observed almost 20 years before those reported in this paper. During one of the observing nights we also obtain spectroscopy information on the ejecta tail induced by the DART impact. The spectrum of the ejecta tail is also very similar to Didymos/Dimorphos itself. All of these aspects seem to suggest that the Didymos system in the NIR looks mostly homogeneous, with very subtle spectral variations.

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Publication Details

Journal
The Planetary Science Journal
Published
2024-10-01
DOI
https://doi.org/10.3847/psj/ad793e
Citations
1
Primary Topic
Astro and Planetary Science
Type
article
Field-Weighted Citation Impact
0.33

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article

Near-infrared Spectral Homogeneity of the Didymos System Before and After the DART Impact*

Nicholas Moskovitz, Cristina A. Thomas, Marilena Amoroso, Alice Lucchetti et al.
1 citations
The Planetary Science Journal
Astro and Planetary Science
0.33
article

Near-infrared Spectral Homogeneity of the Didymos System Before and After the DART Impact*

Nicholas Moskovitz, Cristina A. Thomas, Marilena Amoroso, Alice Lucchetti, Ivano Bertini, Michèle Lavagna, J. R. Brucato, Filippo Tusberti, Luis Gomez Casajus, Andrea Capannolo, Marco Zannoni, M. Dall’Ora, Giovanni Poggiali, Dario Modenini, N. L. Chabot, Marco Ceresoli, G. Cremonese, Simone Pirrotta, P. Palumbo, Vincenzo Della Corte, D. Perna, V. Petropoulou, Angelo Zinzi, E. Dotto, Theodore Kareta, Giovanni Zanotti, A. Rossi, E. Mazzotta Epifani, Stavro Ivanovski, Gabriele Impresario, M. Pajola, J. de León, A. S. Rivkin, P. H. Hasselmann, Riccardo Lasagni Manghi, J. D. P. Deshapriya, Edoardo Gramigna, Igor Gai, S. Caporali, Paolo Tortora, M. Lombardo, Simone Ieva
article en
1 citations

Abstract

Abstract We spectroscopically characterized the Didymos system, target of the Double Asteroid Redirection Test (DART)/Light Italian Cubesat for Imaging of Asteroids (LICIACube) space mission, close in time to the DART impact event, during six nights between 2022 August and November at Telescopio Nazionale Galileo. Here, we show that near-infrared (NIR) spectra (0.75–2.25 μ m) look mostly similar within the same night and between different nights. They are in good agreement with the only spectrum previously available in the literature, observed almost 20 years before those reported in this paper. During one of the observing nights we also obtain spectroscopy information on the ejecta tail induced by the DART impact. The spectrum of the ejecta tail is also very similar to Didymos/Dimorphos itself. All of these aspects seem to suggest that the Didymos system in the NIR looks mostly homogeneous, with very subtle spectral variations.

The Planetary Science JournalVol. 5(10)
Centre National de la Recherche Scientifique (FR), Universidad de La Laguna (ES), Parthenope University of Naples (IT), Northern Arizona University (US), Université Paris Cité (FR), Université Paris Sciences et Lettres (FR), Lowell Observatory (US), Arcetri Astrophysical Observatory (IT), Observatoire de Paris (FR), Astronomical Observatory of Rome (IT), Agenzia Spaziale Italiana (IT), Trieste Astronomical Observatory (IT), Astronomical Observatory of Capodimonte (IT), Johns Hopkins University Applied Physics Laboratory (US), Sorbonne Université (FR), Nello Carrara Institute of Applied Physics (IT), Institute for Space Astrophysics and Planetology (IT), Laboratoire d’études spatiales et d’instrumentation en astrophysique (FR), Instituto de Astrofísica de Canarias (ES), Allentown Public Library (US), Osservatorio Astronomico di Padova (IT), National Institute for Astrophysics (IT), University of Bologna (IT), Politecnico di Milano (IT)
Istituto Nazionale di Astrofisica
Openalex Percentile: Top 34%
Astro and Planetary Science
0.33
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