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On the rotation period and shape of the hyperbolic asteroid 1I/`Oumuamua (2017) U1 from its lightcurve
Matthew M. Knight, Silvia Protopapa, Michael S. P. Kelley +5
We observed the newly discovered hyperbolic minor planet 1I/`Oumuamua (2017 U1) on 2017 October 30 with Lowell Observatory's 4.3-m Discovery Channel Telescope. From these observati…
1I/2017 U1 (`Oumuamua) is Hot: Imaging, Spectroscopy and Search of Meteor Activity
Quan-Zhi Ye, Qicheng Zhang, Michael S. P. Kelley +1
1I/2017 U1 (`Oumuamua), a recently discovered asteroid in a hyperbolic orbit, is likely the first macroscopic object of extrasolar origin identified in the solar system. Here, we p…
Near-UV OH Prompt Emission in the Innermost Coma of 103P/Hartley 2
Fiorangela La Forgia, Dennis Bodewits, Michael F. A'Hearn +5
The Deep Impact spacecraft fly-by of comet 103P/Hartley 2 occurred on 2010 November 4, one week after perihelion with a closest approach (CA) distance of about 700 km. We used narr…
The Main Belt Comets and Ice in the Solar System
Colin Snodgrass, Jessica Agarwal, Michael Combi +11
We review the evidence for buried ice in the asteroid belt; specifically the questions around the so-called Main Belt Comets (MBCs). We summarise the evidence for water throughout…
Solar system science with the Wide-Field InfraRed Survey Telescope (WFIRST)
B. J. Holler, S. N. Milam, J. M. Bauer +30
We present a community-led assessment of the solar system investigations achievable with NASA's next-generation space telescope, the Wide Field InfraRed Survey Telescope (WFIRST).…
The Unusual Apparition of Comet 252P/2000 G1 (LINEAR) and Comparison with Comet P/2016 BA14 (PanSTARRS)
Jian-Yang Li, Michael S. P. Kelley, Nalin H. Samarasinha +7
We imaged Comet 252P/2000 G1 (LINEAR) (hereafter 252P) with the Hubble Space Telescope and both 252P and P/2016 BA (PanSTARRS) (hereafter BA) with the Discovery Chann…