activity
20112025
most citedOrbital Period Change of Dimorphos Due to the DART Kinetic Impact

164 citations · 251 across the 15 of their papers we have counts for

collaborators

15 papers

astro-ph.EP2025

Considerations on the process of target selection for the Comet Interceptor mission

C. Snodgrass, E. Mazzotta Epifani, C. Tubiana +27

Comet Interceptor is an ESA science mission with payload contributions from ESA Member States and with an international participation by JAXA. It is the first mission that is being…

astro-ph.EP2025★ 1 cited

Evolutionary Processes in the Centaur Region

Rosita Kokotanekova, Aurélie Guilbert-Lepoutre, Matthew M. Knight +1

Centaurs populate relatively short-lived and rapidly evolving orbits in the giant-planet region and are believed to be one of the solar system's most complex and diverse population…

astro-ph.SR2025★ 17 cited

Very Large Telescope Observations of Interstellar Comet 3I/ATLAS. II. From Quiescence to Glow: Dramatic Rise of Ni i Emission and Incipient CN Outgassing at Large Heliocentric Distances*

Rohan Rahatgaonkar, Juan Pablo Carvajal, Thomas H. Puzia +25

We report VLT spectroscopy of the interstellar comet 3I/ATLAS (C/2025~N1) from to ~au using X-shooter (300--550\,nm, ) and UVES (opt…

astro-ph.EP2025

Recent Chemo-morphological Coma Evolution of Comet 67P/Churyumov-Gerasimenko

Brian P. Murphy, Cyrielle Opitom, Colin Snodgrass +5

We present VLT/MUSE observations of comet 67P/Churyumov-Gerasimenko during its 2021 perihelion passage, from which we generated simultaneous maps of dust, [OI], C, NH, and…

astro-ph.EP2025

Snapshot of a new interstellar comet: 3I/ATLAS has a red and featureless spectrum

Cyrielle Opitom, Colin Snodgrass, Emmanuel Jehin +19

The interstellar comet 3I/ATLAS is only the third interstellar object to be discovered. Pre-perihelion measurements provide a unique opportunity to study its activity and compositi…

astro-ph.EP2025★ 8 cited

NSF-DOE Vera C. Rubin Observatory Observations of Interstellar Comet 3I/ATLAS (C/2025 N1)

Colin Orion Chandler, Pedro H. Bernardinelli, Mario Jurić +305

We report on the observation and measurement of astrometry, photometry, morphology, and activityof the interstellar object 3I/ATLAS, also designated C/2025 N1 (ATLAS) with the NSF-…

astro-ph.EP2025★ 2 cited

Multi-wavelength JWST observations of (3200) Phaethon show a dehydrated object with an aqueously altered origin

Cristina A. Thomas, Andrew S. Rivkin, Ian Wong +10

We present JWST observations of the near-Earth asteroid (3200) Phaethon using the Near-Infrared Camera (NIRCam), Near-Infrared Spectrograph (NIRSpec), and Mid-Infrared Instrument (…

astro-ph.EP2025

First JWST spectrum of distant activity in Long Period Comet C/2024 E1 (Wierzchos)

Colin Snodgrass, Carrie E. Holt, Michael S. P. Kelley +10

We observed the new Long Period Comet C/2024 E1 (Wierzchos), inbound at 7 au from the Sun, using the NIRSpec integral field unit on JWST. The spectrum shows absorption features due…

astro-ph.EP2024

The Volatile Composition and Activity Evolution of Main-Belt Comet 358P/PANSTARRS

Henry H. Hsieh, John W. Noonan, Michael S. P. Kelley +17

We report the detection of water vapor associated with main-belt comet 358P/PANSTARRS on UT 2024 January 8-9 using the NIRSPEC instrument aboard JWST. We derive a water production…

astro-ph.IM2024★ 6 cited

Rubin ToO 2024: Envisioning the Vera C. Rubin Observatory LSST Target of Opportunity program

Igor Andreoni, Raffaella Margutti, John Banovetz +86

The Legacy Survey of Space and Time (LSST) at Vera C. Rubin Observatory is planned to begin in the Fall of 2025. The LSST survey cadence has been designed via a community-driven pr…

astro-ph.EP2023

VLT/MUSE Characterisation of Dimorphos Ejecta from the DART Impact

Brian P. Murphy, Cyrielle Opitom, Colin Snodgrass +8

We have observed the Didymos-Dimorphos binary system with the MUSE integral field unit spectrograph mounted at the Very Large Telescope (VLT) pre and post-DART impact, and captured…

astro-ph.EP2023★ 1 cited

Photometry of the Didymos system across the DART impact apparition

Nicholas Moskovitz, Cristina Thomas, Petr Pravec +78

On 26 September 2022, the Double Asteroid Redirection Test (DART) spacecraft impacted Dimorphos, the satellite of binary near-Earth asteroid (65803) Didymos. This demonstrated the…

astro-ph.EP2023★ 2 cited

Ejecta Evolution Following a Planned Impact into an Asteroid: The First Five Weeks

Theodore Kareta, Cristina Thomas, Jian-Yang Li +85

The impact of the DART spacecraft into Dimorphos, moon of the asteroid Didymos, changed Dimorphos' orbit substantially, largely from the ejection of material. We present results fr…

astro-ph.EP2023★ 164 cited

Orbital Period Change of Dimorphos Due to the DART Kinetic Impact

Cristina A. Thomas, Shantanu P. Naidu, Peter Scheirich +46

The Double Asteroid Redirection Test (DART) spacecraft successfully performed the first test of a kinetic impactor for asteroid deflection by impacting Dimorphos, the secondary of…

astro-ph.EP2011★ 50 cited

Observational and Dynamical Characterization of Main-Belt Comet P/2010 R2 (La Sagra)

Henry H. Hsieh, Bin Yang, Nader Haghighipour +36

We present observations of comet-like main-belt object P/2010 R2 (La Sagra) obtained by Pan-STARRS 1 and the Faulkes Telescope-North on Haleakala in Hawaii, the University of Hawai…