189 citations · 1.2k across the 33 of their papers we have counts for
33 papers
Demise of Kreutz Sungrazing Comet C/2024 S1 (ATLAS)
David Jewitt, Jane Luu, Jing Li
Most Kreutz family sungrazing comets are discovered only days before perihelion, severely limiting observational opportunities to study their physical nature and decay. Kreutz sung…
The Wagging Plasma Tail of Comet C/2020 S3 (Erasmus)
Jing Li, Yoonyoung Kim, David Jewitt
Long-period comet C/2020 S3 (Erasmus) reached perihelion at 0.398 au on UT 2020 December 12.67, making it a bright, near-Sun object. Images taken between mid-November and December…
Physical Properties of the Young Asteroid Pair 2010 UM26 and 2010 RN221
David Jewitt, Yonyoung Kim, Jing Li +1
The main belt asteroids 458271 (2010 UM26) and 2010 RN221 share almost identical orbital elements and currently appear as comoving objects 30 arcsec apart in the plane of the sky.…
The Dimorphos Boulder Swarm
David Jewitt, Yoonyoung Kim, Jing Li +1
We present deep Hubble Space Telescope images taken to examine the ejecta from the DART spacecraft impact into asteroid Dimorphos. The images reveal an extensive population of co-m…
Comet 108P/Ciffreo: The Blob
Yoonyoung Kim, David Jewitt, Jane Luu +2
Short-period comet 108P/Ciffreo is known for its peculiar double morphology, in which the nucleus is accompanied by a co-moving, detached, diffuse 'blob'. We report new observation…
Disintegration of Long-Period Comet C/2021 A1 (Leonard)
David Jewitt, Yoonyoung Kim, Michael Mattiazzo +3
We present imaging observations of the disintegrating long-period comet C/2021 A1 (Leonard). High resolution observations with Hubble Space Telescope show no evidence for surviving…
Hubble Space Telescope Observations of Active Asteroid P/2020 O1 (Lemmon-PANSTARRS)
Yoonyoung Kim, David Jewitt, Jessica Agarwal +3
We present Hubble Space Telescope observations of active asteroid P/2020 O1 taken to examine its development for a year after perihelion. We find that the mass loss peaks <~1 kg/s…
Fragmenting Active Asteroid 331P/Gibbs
David Jewitt, Jing Li, Yoonyoung Kim
We describe active asteroid 331P/Gibbs (2012 F5) using archival Hubble Space Telescope data taken between 2015 and 2018. 331P is an outer main-belt active asteroid with a long-live…
Disintegration of Long-Period Comet C/2019 Y4 (ATLAS): I. Hubble Space Telescope Observations
Quanzhi Ye, David Jewitt, Man-To Hui +8
Near-Sun Comet C/2019 Y4 (ATLAS) is the first member of a long-period comet group observed to disintegrate well before perihelion. Here we present our investigation into this disin…
Cometary Activity Begins at Kuiper Belt Distances: Evidence from C/2017 K2
David Jewitt, Yoonyoung Kim, Max Mutchler +3
We study the development of activity in the incoming long-period comet C/2017 K2 over the heliocentric distance range 9 < r_H < 16 AU. The comet continues to be characterized by a…
Hubble Space Telescope Search for Activity in High Perihelion Objects
Jing Li, David Jewitt, Max Mutchler +2
Solar system objects with perihelia beyond the orbit of Jupiter ( 5 AU) are too cold for water ice to generate an appreciable coma via sublimation. Despite this, numerous high…
High Resolution Thermal Infrared Imaging of 3200 Phaethon
David Jewitt, Daniel Asmus, Bin Yang +1
We present thermal infrared observations of the active asteroid (and Geminid meteoroid stream parent) 3200 Phaethon using the Very Large Telescope. The images, at 10.7 micron wavel…
Active Asteroid P/2017 S5 (ATLAS)
David Jewitt, Yoonyoung Kim, Jayadev Rajagopal +7
Observations of active asteroid P/2017 S5 when near perihelion reveal the ejection of large (0.1 to 10 mm) particles at 0.2 to 2 m/s speeds, with estimated mass-loss rates of a few…
Distant Comet C/2017 K2 and the Cohesion Bottleneck
David Jewitt, Jessica Agarwal, Man-To Hui +3
Distant long-period comet C/2017 K2 has been outside the planetary region of the solar system for 3 Myr, negating the possibility that heat retained from the previous perihelion co…
Hubble Space Telescope Observations of 3200 Phaethon At Closest Approach
David Jewitt, Max Mutchler, Jessica Agarwal +1
We present Hubble Space Telescope observations of the active asteroid (and Geminid stream parent) 3200 Phaethon when at its closest approach to Earth (separation 0.07 AU) in 2017 D…
The Nucleus of Active Asteroid 311P/(2013 P5) PANSTARRS
David Jewitt, Harold Weaver, Max Mutchler +3
The unique inner-belt asteroid 311P/PANSTARRS (formerly P/2013 P5) is notable for its sporadic, comet-like ejection of dust in nine distinct epochs spread over 250 days in 20…
A Comet Active Beyond the Crystallization Zone
David Jewitt, Man-To Hui, Max Mutchler +3
We present observations showing in-bound long-period comet C/2017 K2 (PANSTARRS) to be active at record heliocentric distance. Nucleus temperatures are too low (60 K to 70 K) eithe…
Anatomy of an Asteroid Break-Up: The Case of P/2013 R3
Dave Jewitt, Jessica Agarwal, Jing Li +3
We present an analysis of new and published data on P/2013 R3, the first asteroid detected while disintegrating. Thirteen discrete components are measured in the interval between U…
Resurrection of (3200) Phaethon in 2016
Man-To Hui, Jing Li
We present a study of the active asteroid (3200) Phaethon in the 2016 apparition using the STEREO spacecraft and compare the results with data from the previous two perihelia in 20…
Fragmentation Kinematics in Comet 332P/Ikeya-Murakami
David Jewitt, Max Mutchler, Harold Weaver +9
We present initial time-resolved observations of the split comet 332P/Ikeya-Murakami taken using the Hubble Space Telescope. Our images reveal a dust-bathed cluster of fragments re…
Hubble Space Telescope Observations of Active Asteroid 324P/La Sagra
David Jewitt, Jessica Agarwal, Harold Weaver +3
Hubble Space Telescope observations of active asteroid 324P/La Sagra near perihelion show continued mass loss consistent with the sublimation of near-surface ice. Isophotes of the…
Nucleus and Mass Loss from Active Asteroid 313P/Gibbs
David Jewitt, Jing Li, Jessica Agarwal +3
We present Hubble Space Telescope observations of active asteroid 313P/Gibbs (formerly P/2014 S4) taken over the five month interval from 2014 October to 2015 March. This object ha…
Disappearance of Comet C/2010 X1 (Elenin): Gone with a Whimper, not a Bang
Jing Li, David Jewitt
We examine the rise and sudden demise of comet C/2010 X1 (Elenin) on its approach to perihelion. Discovered inbound at 4.2 AU, this long-period comet was predicted to become very b…
New Active Asteroid 313P/Gibbs
David Jewitt, Jessica Agarwal, Nuno Peixinho +5
We present initial observations of the newly-discovered active asteroid 313P/Gibbs (formerly P/2014 S4), taken to characterize its nucleus and comet-like activity. The central obje…