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The cold classical Kuiper Belt Objects (KBOs) possess a high, $\gtrsim30\%$ binary fraction. Widely separated and dynamically fragile, these binary systems have been useful in tracing the origins of KBOs. A new class of binaries was…

The discovery of binaries in each of the major populations of minor bodies in the solar system is propelling a rapid growth of heretofore unattainable physical information. The availability of mass and density constraints for minor bodies…

Astrophysics · Physics 2009-11-11 Keith S. Noll

The dynamically cold component of the Kuiper Belt is host to a population of very widely separated, near-equal mass binary systems. Such binaries, representing the tail of the separation distribution of the more common, more tightly-bound…

Earth and Planetary Astrophysics · Physics 2012-07-04 Alex H. Parker

The direct detection of binary systems in wide-field surveys is limited by the size of the stars' point-spread-functions (PSFs). A search for elongated objects can find closer companions, but is limited by the precision to which the PSF…

Observations of the Kuiper Belt indicate that a larger than expected percentage of KBO's (approximately 8 out of 500) are in binary pairs. The formation and survival of such objects presents a conundrum [1]. Two competing theories have been…

Space Physics · Physics 2007-05-23 R. C. Nazzario , T. W. Hyde

It appears that at least several percent of large Kuiper belt objects are members of wide binaries. Physical collisions are too infrequent to account for their formation. Collisionless gravitational interactions are more promising. These…

Astrophysics · Physics 2009-11-07 Peter Goldreich , Yoram Lithwick , Re'em Sari

The discovery that a substantial fraction of Kuiper Belt objects (KBOs) exists in binaries with wide separations and roughly equal masses, has motivated a variety of new theories explaining their formation. Goldreich et al. (2002) proposed…

Astrophysics · Physics 2009-11-13 Hilke E. Schlichting , Re'em Sari

In this letter, we call attention to a gap in binaries in the Kuiper belt in the mass range between $\approx$10$^{19}$-10$^{20}$ kg, with a corresponding dearth in binaries between 4th and 5th absolute magnitude $H$. The low-mass end of the…

Earth and Planetary Astrophysics · Physics 2025-07-15 Wladimir Lyra

The discovery that many trans-neptunian objects exist in pairs, or binaries, is proving invaluable for shedding light on the formation, evolution and structure of the outer Solar system. Based on recent systematic searches it has been…

Astrophysics · Physics 2007-05-23 Sergey A. Astakhov , Ernestine A. Lee , David Farrelly

Almost all of the $>600$ known Kuiper belt objects (KBOs) have been discovered within 50 AU of the Sun. One possible explanation for the observed lack of KBOs beyond 50 AU is that the distant Kuiper belt is dynamically very cold, and thus…

Astrophysics · Physics 2016-08-30 R. Lynne Allen , Gary Bernstein , Renu Malhotra

Binaries have played a crucial role many times in the history of modern astronomy and are doing so again in the rapidly evolving exploration of the Kuiper Belt. The large fraction of transneptunian objects that are binary or multiple, 48…

Measuring the size distribution of small (km-scale) KBOs can help constrain models of Solar System formation and planetary migration. Such small, distant bodies are hard to detect with current or planned telescopes, but can be identified as…

Earth and Planetary Astrophysics · Physics 2023-10-06 Guy Nir , Eran O. Ofek , David Polishook , Barak Zackay , Sagi Ben-Ami

Asteroseismology may in principle be used to detect unresolved stellar binary systems comprised of solar-type stars and/or red giants. This novel method relies on the detection of the presence of two solar-like oscillation spectra in the…

Solar and Stellar Astrophysics · Physics 2015-06-18 A. Miglio , W. J. Chaplin , R. Farmer , U. Kolb , L. Girardi , Y. Elsworth , T. Appourchaux , R. Handberg

Binaries containing compact objects, if viewed close to edge on, can produce periodic brightening events under certain conditions on the masses, radii, and binary separation. Such flares are caused by one object gravitational lensing the…

Solar and Stellar Astrophysics · Physics 2023-11-27 Guy Nir , Joshua S. Bloom

As indicated by their special characteristics, the cold classical Kuiper belt objects (KBOs) formed and survived at 42-47 au. Notably, they show a large fraction of equal-size binaries whose formation is probably related to the accretion of…

Earth and Planetary Astrophysics · Physics 2019-05-29 David Nesvorny , David Vokrouhlicky

In the outer solar system, the Kuiper Belt contains dynamical sub-populations sculpted by a combination of planet formation and migration and gravitational perturbations from the present-day giant planet configuration. The subdivision of…

Earth and Planetary Astrophysics · Physics 2020-07-09 Rachel A. Smullen , Kathryn Volk

We present the results of a systematic search for massive black hole binaries in the Sloan Digital Sky Survey spectroscopic database. We focus on bound binaries, under the assumption that one of the black holes is active. In this framework,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 P. Tsalmantza , R. Decarli , M. Dotti , David W. Hogg

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

The non-resonant Kuiper belt objects (KBOs) between the 3:2 and 2:1 Neptunian mean motion resonances can be largely divided between a cold classical belt (CCB) and a hot classical belt (HCB). A notable difference between these two…

Earth and Planetary Astrophysics · Physics 2021-07-07 Lukas R Stone , Nathan A Kaib

I show that the WFIRST microlensing survey will enable detection and precision orbit determination of Kuiper Belt Objects (KBOs) down to H_=28.2 over an effective area of about 17 sq.deg. Typical fractional period errors will be about 1.5%…

Earth and Planetary Astrophysics · Physics 2015-06-19 Andrew Gould
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