Results 41 to 50 of about 46,946 (311)

Large-Scale Searches for Brown Dwarfs and Free-Floating Planets [PDF]

open access: green, 2018
Searches of large scale surveys have resulted in the discovery of over 1000 brown dwarfs in the Solar neighbourhood. In this chapter we review the progress in finding brown dwarfs in large datasets, highlighting the key science goals, and summarising the surveys that have contributed most significantly to the current sample.
Ben Burningham
openalex   +4 more sources

Hunting for Cold Exoplanets via Microlensing

open access: yesComptes Rendus. Physique, 2023
Microlensing can detect planets at distances ranging from a few hundred parsecs all the way to the Galactic center. The maximum sensitivity is reached for systems that are located half way to the galactic center, with planets orbiting the lens star at a ...
Beaulieu, Jean-Philippe
doaj   +1 more source

Are There Terrestrial Planets Lurking in the Outer Solar System?

open access: yesThe Astrophysical Journal Letters, 2023
Motivated by recent measurements of the free-floating-planet mass function at terrestrial masses, we consider the possibility that the solar system may have captured a terrestrial planet early in its history.
Amir Siraj
doaj   +1 more source

On the detection of free-floating planets through microlensing towards the Magellanic Clouds [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2021
In this work, we study detecting free-floating planets (FFPs) by microlensing observations towards the Magellanic Clouds (MCs). In comparison to similar events towards the Galactic bulge, an FFP in the Galactic halo produces on average longer ...
S. Sajadian
semanticscholar   +1 more source

Presence of water on exomoons orbiting free-floating planets: a case study [PDF]

open access: yesInternational Journal of Astrobiology, 2021
A free-floating planet (FFP) is a planetary-mass object that orbits around a non-stellar massive object (e.g. a brown dwarf) or around the Galactic Centre. The presence of exomoons orbiting FFPs has been theoretically predicted by several models.
P. Ávila   +6 more
semanticscholar   +1 more source

Impact of Water-latent Heat on the Thermal Structure of Ultra-cool Objects: Brown Dwarfs and Free-floating Planets [PDF]

open access: yesAstrophysical Journal, 2021
Brown dwarfs are essential targets for understanding planetary and sub-stellar atmospheres across a wide range of thermal and chemical conditions. As surveys continue to probe ever deeper and as observing capabilities continue to improve, the number of ...
S. Tang   +5 more
semanticscholar   +1 more source

Interaction of free-floating planets with a star–planet pair [PDF]

open access: yesCelestial Mechanics and Dynamical Astronomy, 2012
The recent discovery of free-floating planets and their theoretical interpretation as celestial bodies, either condensed independently or ejected from parent stars in tight clusters, introduced an intriguing possibility. Namely, that some exoplanets are not condensed from the protoplanetary disk of their parent star.
Varvoglis, Harry   +2 more
openaire   +2 more sources

Primordial Planets with an Admixture of Dark Matter Particles and Baryonic Matter

open access: yesUniverse, 2023
It has been suggested that primordial planets could have formed in the early universe and the missing baryons in the universe could be explained by primordial free-floating planets of solid hydrogen.
O. V. Kiren   +2 more
doaj   +1 more source

Investigating the free-floating planet mass by Euclid observations [PDF]

open access: greenAstrophysics and Space Science, 2016
Astrophysics and Space Science ...
Lindita Hamolli   +7 more
openalex   +4 more sources

Free-floating Planet Mass Function from MOA-II 9 yr Survey toward the Galactic Bulge

open access: yesThe 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

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