Results 51 to 60 of about 46,946 (311)
Gravitational Microlensing: A Tool for Detecting and Characterizing Free‐Floating Planets [PDF]
The Astrophysical Journal, 2004 total 8 pages, including 3 figures, ApJ, in press (Mar 1, 2004)
Cheongho Han +6 more
openalex +4 more sources
Direct imaging constraints on planet populations detected by microlensing [PDF]
, 2012 Results from gravitational microlensing suggested the existence of a large population of free-floating planetary mass objects. The main conclusion from this work was partly based on constraints from a direct imaging survey.
Beaulieu +14 more
core +1 more source
Implications of the discovery of AF Lep b. The mass-luminosity relation for planets in the Beta Pic Moving Group and the L-T transition for young companions and free-floating planets [PDF]
Astronomy & AstrophysicsDynamical masses of young planets aged between 10 and 200 Myr detected in imaging play a crucial role in shaping models of giant planet formation. Regrettably, only a few such objects possess these characteristics.
R. Gratton +9 more
semanticscholar +1 more source
KMT-2022-BLG-2397: Brown Dwarf at the Upper Shore of the Einstein Desert
The Astronomical Journal, 2023 We measure the Einstein radius of the single-lens microlensing event KMT-2022-BLG-2397 to be θ _E = 24.8 ± 3.6 μ as, placing it at the upper shore of the Einstein Desert, 9 ≲ θ _E / μ as ≲ 25, between free-floating planets (FFPs) and bulge brown dwarfs ...
Andrew Gould +20 more
doaj +1 more source
Interpreting the M22 Spike Events [PDF]
, 2001 Recently Sahu et al., using the Hubble Space Telescope to monitor stars in the direction of the old globular cluster M22, detected six events in which otherwise constant stars brightened by ~50% during a time of 1 AU would have been ionized by random ...
Armitage P. J. +11 more
core +2 more sources
Free‐floating Planets in Stellar Clusters: Not So Surprising [PDF]
The Astrophysical Journal, 2002 We find that free-floating planets can remain bound to an open cluster for much longer than was previously calculated: of the order of the cluster half-mass relaxation timescale as opposed to the crossing time. This result is based on N-body simulations performed with the new GRAPE-6 special purpose hardware and is important in the context of the ...
Hurley, Jarrod R., Shara, Michael M.
openaire +2 more sources
Geosciences, 2018 “Free-floating, non-deuterium-burning, substellar objects” are isolated bodies of a few Jupiter masses found in very young open clusters and associations, nearby young moving groups, and in the immediate vicinity of the Sun.
José A. Caballero
doaj +1 more source
The invasion of a free-floating planet and the number asymmetry of Jupiter Trojans
Astronomy & Astrophysics, 2023 Context. This paper extends our previous study of the early evolution of Jupiter and its two Trojan swarms by introducing the possible perturbations of a free-floating planet (FFP) invading the Solar System. Aims. In the framework of the invasion of a FFP, we aim to provide some new scenarios to explain the number asymmetry of the L4 and L5 Jupiter ...
Li, Jian +3 more
openaire +2 more sources
Linking the formation and fate of exo-Kuiper belts within solar system analogues [PDF]
, 2020 Escalating observations of exo-minor planets and their destroyed remnants both passing through the solar system and within white dwarf planetary systems motivate an understanding of the orbital history and fate of exo-Kuiper belts and planetesimal discs.
Cai, Maxwell X. +9 more
core +3 more sources
Microlensing Characterization of Wide-Separation Planets
, 2004 With their excellent photometric precision and dramatic increase in monitoring frequency, future microlensing survey experiments are expected to be sensitive to very short time-scale, isolated events caused by free-floating and wide-separation planets ...
Andrew Gould +8 more
core +1 more source