brown dwarfs

GPTKB entity

Statements (54)
Predicate Object
gptkbp:instance_of gptkb:astronomy
gptkbp:are_cooler_than most stars
gptkbp:are_less_luminous_than red dwarfs
gptkbp:are_part_of the stellar population of galaxies
gptkbp:atmosphere hydrogen, helium, and heavier elements
contains clouds of dust and gas
gptkbp:average_temperature below 3000 K
gptkbp:can different rotation rates
gptkbp:can_be_found_in the solar neighborhood
various spectral classes
gptkbp:can_create in binary systems
gptkbp:can_detect gravitational microlensing
gptkbp:color reddish to brownish
gptkbp:contribution the mass function of stellar populations
gptkbp:detectable_by infrared observations
gptkbp:discovery first identified in the 1990s
predicted by stellar evolution models
gptkbp:emissions_standard radio waves
gptkbp:example gptkb:2_MASS_J01414527-4633574
gptkbp:exhibits variable brightness
gptkbp:formed from the same processes as stars
gptkbp:has_luminosity very low
gptkbp:has_spectral_type L, T, and Y
gptkbp:have_been_detected_in various star clusters
https://www.w3.org/2000/01/rdf-schema#label brown dwarfs
gptkbp:is_capable_of sustaining hydrogen fusion
gptkbp:is_characterized_by low metallicity
gptkbp:is_essential_for the study of exoplanets
understanding the lower mass limit for star formation
gptkbp:is_found_in star-forming regions
gptkbp:is_observed_in gptkb:Hubble_Space_Telescope
gptkbp:is_often_compared_to failed stars
gptkbp:is_often_seen_in other substellar objects
gptkbp:is_similar_to gas giants like Jupiter and Saturn
gptkbp:is_studied_for their potential to host life
gptkbp:is_studied_in the context of stellar evolution.
gptkbp:lifespan longer than stars of similar mass
gptkbp:located_in gptkb:the_Milky_Way_galaxy
gptkbp:mass between 13 and 80 times the mass of Jupiter
gptkbp:may_have complex chemistry in their atmospheres
planets orbiting them
gptkbp:model predict their characteristics
gptkbp:notable_examples gptkb:Luhman_16
gptkbp:notable_feature low surface gravity
gptkbp:number_in_the_milky_way estimated to be in the billions
gptkbp:originated_in cool and fade over time
gptkbp:research spectroscopy and photometry
gptkbp:research_importance helps understand star formation
gptkbp:role_in_astronomy bridge between planets and stars
gptkbp:scientific_classification isolated or binary
gptkbp:size similar to large planets
gptkbp:type gptkb:Dwarves
gptkbp:bfsParent gptkb:WISE
gptkbp:bfsLayer 4