53 citations · 138 across the 4 of their papers we have counts for
10 papers
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…