Results 11 to 20 of about 1,293 (185)
The Planetary Science Journal, 2023 The discovery of two interstellar objects passing through the solar system, 1I/‘Oumuamua and 2I/Borisov, implies that a galactic population exists with a spatial number density of order ∼0.1 au ^−3 .
Dušan Marčeta, Darryl Z. Seligman
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Identifying Interstellar Object Impact Craters
The Planetary Science Journal, 2022 Abstract The discoveries of two interstellar objects (ISOs) in recent years have generated significant interest in constraining their physical properties and the mechanisms behind their formation. However, their ephemeral passages through our solar system permitted only incomplete characterization.
Samuel H. C. Cabot, Gregory Laughlin
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The New Astronomical Frontier of Interstellar Objects
Astrobiology, 2022 The upcoming commencement of the Vera C. Rubin Observatory's Legacy Survey of Space of Time (LSST) will greatly enhance the discovery rate of interstellar objects (ISOs). `Oumuamua and Borisov were the first two ISOs confirmed in the Solar system, although the first interstellar meteor may have been discovered earlier.
Siraj, Amir, Loeb, Abraham
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Interstellar Objects Follow the Collapse of Molecular Clouds [PDF]
The Astrophysical Journal, 2021 Abstract Interstellar objects (ISOs), the parent population of 1i/‘Oumuamua and 2i/Borisov, are abundant in the interstellar medium of the Milky Way. This means that the interstellar medium, including molecular-cloud regions, has three components: gas, dust, and ISOs.
Susanne Pfalzner +3 more
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On the Proposed Interstellar Origin of the USG 20140108 Fireball
The Astrophysical Journal, 2023 A critical review of the evidence for the interstellar origin of the USG 20140108 fireball is presented. Examining United States Government (USG) fireball velocities where independent data are available shows the former to have significant (10–15 km s ...
Peter G. Brown, Jiří Borovička
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Spitzer Observations of Interstellar Object 1I/‘Oumuamua [PDF]
The Astronomical Journal, 2018 Abstract 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 for 30.2 hr at 4.5 μm (IRAC channel 2). We did not detect the object and place an upper limit on the flux of 0.3 μJy (3σ).
David E. Trilling +22 more
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The Astrophysical Journal, 2023 We investigate the thermal condensation caused by a massive object that passes through the interstellar medium with high velocity, and propose a mechanism for creating a filamentary gaseous object, or interstellar contrail.
Kanta Kitajima, Shu-ichiro Inutsuka
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The Planetary Science Journal, 2023 In this paper, we present an open-source software (Simulator of Asteroid Malformation Under Stress, SAMUS ) that simulates constant-density, constant-viscosity liquid bodies subject to tidal forces for a range of assumed viscosities and sizes.
Aster G. Taylor +4 more
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Interstellar Objects from Broken Dyson Spheres
Research Notes of the AAS, 2023 Abstract Without extensive maintenance, Dyson spheres inevitably disintegrate by asteroid impacts over billions of years. The resulting fragments would appear as anomalous interstellar objects, potentially sharing the unusual shape and motion of 1I/‘Oumuamua or the unusual material strength of the first two interstellar meteors, IM1 and ...
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Interstellar Object Accessibility and Mission Design
2023 IEEE Aerospace Conference, 2023 IEEE Aerospace Conference, Preprint Version, Accepted: November ...
Donitz, Benjamin P. S. +8 more
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