Constraints on the Density and Internal Strength of 1I/'Oumuamua
@article{McNeill2018ConstraintsOT, title={Constraints on the Density and Internal Strength of 1I/'Oumuamua}, author={Andrew McNeill and David E. Trilling and Michael Mommert}, journal={arXiv: Earth and Planetary Astrophysics}, year={2018} }
1I/'Oumuamua was discovered by the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS 1) on 19 October 2017. Unlike all previously discovered minor planets this object was determined to have eccentricity $e > 1.0$, suggesting an interstellar origin. Since this discovery and within the limited window of opportunity, several photometric and spectroscopic studies of the object have been made. Using the measured light curve amplitudes and rotation periods we find that, under the…
Tables from this paper
15 Citations
Spitzer Observations of Interstellar Object 1I/‘Oumuamua
- Physics, GeologyThe Astronomical Journal
- 2018
1I/'Oumuamua is the first confirmed interstellar body in our solar system. Here we report on observations of 'Oumuamua made with the Spitzer Space Telescope on 2017 November 21–22 (UT). We integrated…
On the Anomalous Acceleration of 1I/2017 U1 ‘Oumuamua
- Physics, GeologyThe Astrophysical Journal
- 2019
We show that the P ~ 8 hr photometric period and the astrometrically measured A_(ng) ~ 2.5 × 10^(−4) cm s^(−2) non-gravitational acceleration (at r ~ 1.4 au) of the interstellar object 1I/2017…
The natural history of ‘Oumuamua
- Physics, GeologyNature Astronomy
- 2019
4 The discovery of the first interstellar object (ISO) passing through the Solar System, 1I/2017 U1 5 (‘Oumuamua), provoked intense and continuing interest from the scientific community and the…
Spin Evolution and Cometary Interpretation of the Interstellar Minor Object 1I/2017 ’Oumuamua
- Physics, GeologyThe Astrophysical Journal
- 2018
Observations of the first interstellar minor object 1I/2017 'Oumuamua did not reveal direct signs of outgassing that would have been natural if it had volatile-rich composition. However, a recent…
Evidence Suggesting That ‘Oumuamua Is the ∼30 Myr Old Product of a Molecular Cloud
- Physics, Geology
- 2021
The appearance of interstellar objects (ISOs) in the solar system—and specifically the arrival of 1I/‘Oumuamua—points to a significant number density of free-floating bodies in the solar…
On the aspect ratio of ’Oumuamua : less elongated shape for irregular surface properties
- Geology, Physics
- 2020
The large brightness variation in the observed lightcurve of Oumuamua is probably related to its shape, i.e., to the ratio between its longest axis and its shortest axis (aspect ratio). Several…
The natural history of 'Oumuamua
- Geology, Physics
- 2019
How the observed characteristics of `Oumuamua are explained by the extensive knowledge of natural minor bodies in the authors' Solar System and the current knowledge of the evolution of planetary systems is discussed.
Tidal fragmentation as the origin of 1I/2017 U1 (‘Oumuamua)
- Physics, Geology
- 2020
The first discovered interstellar object (ISO), ‘Oumuamua (1I/2017 U1) shows a dry and rocky surface, an unusually elongated shape, with short-to-long axis ratio c ∕ a ≲ 1∕6, a low velocity relative…
Asteroid Photometry from the Transiting Exoplanet Survey Satellite: A Pilot Study
- Physics, GeologyThe Astrophysical Journal Supplement Series
- 2019
The {\it Transiting Exoplanet Survey Satellite} (TESS) searches for planets transiting bright and nearby stars using high-cadence, large-scale photometric observations. Full Frame Images provided by…
The Population of Interstellar Objects Detectable with the LSST and Accessible for In Situ Rendezvous with Various Mission Designs
- Physics, GeologyThe Planetary Science Journal
- 2022
The recently discovered population of interstellar objects presents us with the opportunity to characterize material from extrasolar planetary and stellar systems up close. The forthcoming Vera C.…
References
SHOWING 1-6 OF 6 REFERENCES
Rotation of Cometary Nuclei
- Physics
- 2005
The current understanding of cometary rotation is reviewed from both theoretical and observational perspectives. Rigid-body dynamics for principal axis and non-principal-axis rotators are described…
Problems of Cosmology and Stellar Dynamics
- Physics, Geology
- 1920
1. Introductory chapter 2. General dynamical principles 3. Ellipsoidal configurations of equilibrium 4. The gravitational potential of a distorted ellipsoid 5. Pear-shaped configurations of…
Palomar Optical Spectrum of Hyperbolic Near-Earth Object A/2017 U1
- Physics, Geology
- 2017
We present optical spectroscopy of the recently discovered hyperbolic near-Earth object A/2017 U1, taken on 25 Oct 2017 at Palomar Observatory. Although our data are at a very low signal-to-noise,…
Rotation of cometary nuclei, ed
- G.W. Kronk,
- 2004
Asteroid Rotations, ed
- 2002