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Related papers: Detectability of Oort cloud objects using Kepler

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The serendipitous detection of stellar occultations by Outer Solar System objects is a powerful method for ascertaining the small end ($r \lesssim 15$ km) of the size distribution of Kuiper Belt Objects and may potentially allow the…

Astrophysics · Physics 2008-11-26 T. C. Nihei , M. J. Lehner , F. B. Bianco , S. -K. King , J. M. Giammarco , C. Alcock

The Oort cloud is presumably a pristine relic of the Solar System formation. Detection of the Oort cloud may provide information regarding the stellar environment in which the Sun was born and on the planetesimal population during the outer…

Instrumentation and Methods for Astrophysics · Physics 2024-09-05 Eran O. Ofek , Sarah A. Spitzer , Guy Nir

The proposed field-of-view of the Kepler mission is at an ecliptic latitude of ~55 degrees, where the surface density of scattered Kuiper Belt Objects (KBOs) is a few percent that in the ecliptic plane. The rate of occultations of Kepler…

Astrophysics · Physics 2009-11-10 B. Scott Gaudi

The occultation of background stars by foreground Solar system objects, such as planets and asteroids, has been widely used as an observational probe to study physical properties associated with the foreground sample. Similarly, the…

Astrophysics · Physics 2007-05-23 Asantha Cooray

Knowledge of the Kuiper Belt is currently limited to those objects that can be detected directly. Objects with diameters less than $\sim$10km reflect too little light to be detected. These smaller bodies could contain most of the mass in…

Astrophysics · Physics 2007-12-11 R. Stevenson

The Kuiper belt is a remnant of the primordial Solar System. Measurements of its size distribution constrain its accretion and collisional history, and the importance of material strength of Kuiper belt objects (KBOs). Small, sub-km sized,…

Earth and Planetary Astrophysics · Physics 2015-05-14 H. E. Schlichting , E. O. Ofek , M. Wenz , R. Sari , A. Gal-Yam , M. Livio , E. Nelan , S. Zucker

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…

Earth and Planetary Astrophysics · Physics 2020-03-04 Amir Siraj , Abraham Loeb

The occultation of background stellar sources by foreground Kuiper Belt Objects (KBOs) can be used to survey physical properties of the KBO population. We discuss statistics related to a KBO occultation survey, such as the event duration…

Astrophysics · Physics 2009-11-07 Asantha Cooray , Alison J. Farmer

Using all the RXTE archival data of Sco X-1 and GX 5-1, which amount to about 1.6 mega seconds in total, we searched for possible occultation events caused by Oort Cloud Objects. The detection efficiency of our searching approach was…

Earth and Planetary Astrophysics · Physics 2016-08-31 Hsiang-Kuang Chang , Chih-Yuan Liu , Jie-Rou Shang

Microlensing and occultation are generally studied in the geometric optics limit. However, diffraction may be important when recently discovered Kuiper-Belt objects (KBOs) occult distant stars. In particular the effects of diffraction…

Earth and Planetary Astrophysics · Physics 2015-05-14 Jeeremy Heyl

Here we present observations of 7 large Kuiper Belt Objects. From these observations, we extract a point source catalog with $\sim0.01"$ precision, and astrometry of our target Kuiper Belt Objects with $0.04-0.08"$ precision within that…

Kuiper belt objects smaller than a few kilometers are difficult to observe directly. They can be detected when they randomly occult a background star. Close to the ecliptic plane, each star is occulted once every tens of thousands of hours,…

Instrumentation and Methods for Astrophysics · Physics 2023-10-06 Guy Nir , Eran O. Ofek , Barak Zackay

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 system. In particular, the size distribution…

Earth and Planetary Astrophysics · Physics 2019-10-23 K. Arimatsu , K. Tsumura , F. Usui , Y. Shinnaka , K. Ichikawa , T. Ootsubo , T. Kotani , T. Wada , K. Nagase , J. Watanabe

Most known trans-Neptunian objects (TNOs) gravitationally scattering off the giant planets have orbital inclinations consistent with an origin from the classical Kuiper belt, but a small fraction of these "scattering TNOs" have inclinations…

Stellar occultations provide a powerful tool to explore objects of the outer solar system. The Gaia mission now provides milli-arcsec accuracy on the predictions of these events and makes possible observations that were previously…

Earth and Planetary Astrophysics · Physics 2024-12-11 Bruno Sicardy , Felipe Braga-Ribas , Marc W. Buie , José Luis Ortiz , Françoise Roques

There are several observational campaigns under way to detect kilometer size foreground Kuiper Belt Objects (KBOs) through their occultation of background stars. The interpretation of an occultation light curve, unfortunately, is affected…

Astrophysics · Physics 2009-11-07 Asantha Cooray

We simulate the formation and evolution of Oort clouds around the 200 nearest stars (within 16pc according to the Gaia DR2) database. This study is performed by numerically integrating the planets and minor bodies in orbit around the parent…

Earth and Planetary Astrophysics · Physics 2021-03-24 Simon Portegies Zwart

We present here the analysis of about 19,500 new star hours of low ecliptic latitude observations (|b| < 20 deg) obtained by the Hubble Space Telescope's FGS over a time span of more than nine years; which is an addition to the 12,000 star…

A novel method of generating artificial scintillation noise is developed and used to evaluate occultation rates and false positive rates for surveys probing the Kuiper Belt with the method of serendipitous stellar occultations. A thorough…

Earth and Planetary Astrophysics · Physics 2009-11-13 Steven Bickerton , Doug Welch , JJ Kavelaars

In terms of scientific output, the best way to study solar system bodies is sending spacecraft to make in-situ measurements or to observe at close distance. Probably, the second best means to learn about important physical properties of…

Earth and Planetary Astrophysics · Physics 2019-05-14 J. L. Ortiz , B. Sicardy , J. I. B. Camargo , P. Santos-Sanz , F. Braga-Ribas
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