Detecting Interstellar Objects through Stellar Occultations

@article{Siraj2020DetectingIO,
  title={Detecting Interstellar Objects through Stellar Occultations},
  author={Amir Siraj and Abraham Loeb},
  journal={arXiv: Earth and Planetary Astrophysics},
  year={2020}
}
  • A. Siraj, A. Loeb
  • Published 8 January 2020
  • Physics
  • arXiv: Earth and Planetary Astrophysics
Stellar occultations have been used to search for Kuiper Belt and Oort Cloud objects. We propose a search for interstellar objects based on the characteristic durations ($\sim 0.1 \mathrm{s}$) of their stellar occultation signals and high inclination relative to the ecliptic plane. An all-sky monitoring program of all $\sim 7 \times 10^6$ stars with $R \lesssim 12.5$ using 1-m telescopes with $0.1 \; \mathrm{s}$ cadences is predicted to discover $\sim 1$ interstellar object per year. 
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References

SHOWING 1-10 OF 47 REFERENCES
Detectability of Occultations of Stars by Objects in the Kuiper Belt and Oort Cloud
The serendipitous detection of stellar occultations by outer solar system objects is a powerful method for ascertaining the small end (r 15 km) of the size distribution of Kuiper Belt objects and may
Discovery of a Meteor of Interstellar Origin
The first interstellar object, `Oumuamua, was discovered in the Solar System by Pan-STARRS in 2017, allowing for a calibration of the abundance of interstellar objects of its size $\sim 100\;$ m. One
Probing Extrasolar Planetary Systems with Interstellar Meteors
The first interstellar object, `Oumuamua, was discovered in the Solar System by Pan-STARRS in 2017, allowing for a calibration of the impact rate of interstellar meteors of its size $\sim 100\;$m.
A Detection Method for Small Kuiper Belt Objects: The Search for Stellar Occultations
We explore the possibility of detecting small Kuiper belt objects (KBO) by serendipitous observation of stellar occultations: We show that such unpredictable occultations may allow us to detect a
Measuring the Abundance of Sub-kilometer-sized Kuiper Belt Objects Using Stellar Occultations
We present here the analysis of about 19,500 new star hours of low ecliptic latitude observations (|b| ≤ 20°) obtained by the Hubble Space Telescope's Fine Guidance Sensors over a time span of more
A single sub-kilometre Kuiper belt object from a stellar occultation in archival data
TLDR
An analysis of archival data reveals an occultation by a body with an approximately 500-metre radius at a distance of 45 astronomical units that implies that sub-kilometre-sized Kuiper belt objects are undergoing collisional erosion, just like debris disks observed around other stars.
An Observational Upper Limit on the Interstellar Number Density of Asteroids and Comets
We derived 90% confidence limits (CL) on the interstellar number density ($\rho_{IS}^{CL}$) of interstellar objects (ISO; comets and asteroids) as a function of the slope of their size-frequency
Identifying Interstellar Objects Trapped in the Solar System through Their Orbital Parameters
The first interstellar object, `Oumuamua, was discovered in the Solar System by Pan-STARRS in 2017, allowing for a calibration of the abundance of interstellar objects of its size and an estimation
Amateur telescopes discover a kilometre-sized Kuiper belt object from stellar occultation
Kuiper belt objects (KBOs) are thought to be the remnant of the early solar system, and their size distribution provides an opportunity to explore the formation and evolution of the outer solar
APO Time Resolved Color Photometry of Highly-Elongated Interstellar Object 1I/'Oumuamua
We report on $g$, $r$ and $i$ band observations of the Interstellar Object 'Oumuamua (1I) taken on 2017 October 29 from 04:28 to 08:40 UTC by the Apache Point Observatory (APO) 3.5m telescope's
...
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5
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