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Oumuamuas passing through molecular clouds
- Source :
- The astrophysical journal / 1 903(2), 114-(2020). doi:10.3847/1538-4357/abb9ae
- Publication Year :
- 2020
-
Abstract
- The detections of 1I/Oumuamua and 2I/Borisov within just two years demonstrate impressively that interstellar objects (ISOs) must be common in the Milky Way. Once released from their parent system, these ISOs travel for Gyr through interstellar space. While often imagined as empty, interstellar space contains gas and dust most prominent in the form of molecular clouds. Performing numerical simulations, we test how often ISOs cross such molecular clouds. We find that the ISOs pass amazingly often through molecular clouds. In the solar neighbourhood, ISOs typically spend 0.1-0.2% of their journey inside molecular clouds, for relative slow ISOs ($<br />Comment: 12 pages, 7 figures, accepted by ApJ
- Subjects :
- Physics
010504 meteorology & atmospheric sciences
Molecular cloud
Milky Way
Galactic Center
FOS: Physical sciences
Astronomy and Astrophysics
Astrophysics
Astrophysics::Cosmology and Extragalactic Astrophysics
01 natural sciences
Astrophysics - Astrophysics of Galaxies
Space and Planetary Science
Astrophysics of Galaxies (astro-ph.GA)
0103 physical sciences
ddc:520
Astrophysics::Solar and Stellar Astrophysics
Astrophysics::Earth and Planetary Astrophysics
010303 astronomy & astrophysics
Astrophysics::Galaxy Astrophysics
0105 earth and related environmental sciences
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- The astrophysical journal / 1 903(2), 114-(2020). doi:10.3847/1538-4357/abb9ae
- Accession number :
- edsair.doi.dedup.....e8ef0a553a0ce7ea75059ec047fbab8a