Investigating the free-floating planet mass by Euclid observations [PDF]
Astrophysics and Space Science, 2016 Astrophysics and Space Science ...
Lindita Hamolli +3 more
openalex +4 more sources
Free-floating Planet Mass Function from MOA-II 9 yr Survey toward the Galactic Bulge
The Astronomical Journal, 2023 We present the first measurement of the mass function of free-floating planets (FFPs), or very wide orbit planets down to an Earth mass, from the MOA-II microlensing survey in 2006–2014.
Takahiro Sumi +28 more
doaj +1 more source
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
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
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
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
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
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
Microlensing due to free-floating moon-planet systems
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT Gravitational microlensing is a powerful method for detecting and characterizing free-floating planetary-mass objects (FFPs). FFPs could have exomoons rotating them. In this work, we study the probability of realizing these systems (i.e. free-floating moon-planet ones) through microlensing observations. These systems make mostly
Sedighe Sajadian, Parisa Sangtarash
openaire +2 more sources
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