Results 121 to 130 of about 113,078 (269)

The stellar and substellar mass function in central region of the old open cluster Praesepe from deep LBT observations

open access: yesEPJ Web of Conferences, 2011
Studies of the mass function of open clusters of different ages allow us to study the efficiency with which brown dwarfs are evaporated from clusters to populate the field.
Goldman B.   +5 more
doaj   +1 more source

ROME. IV. An Arecibo Search for Substellar Magnetospheric Radio Emissions in Purported Exoplanet-hosting Systems at 5 GHz

open access: yesThe Astrophysical Journal
Plasma flow–obstacle interactions, such as those between an exoplanet’s magnetosphere and the host star’s stellar wind, may lead to detectable radio emissions.
Matthew Route
doaj   +1 more source

Atmospheric Waves Driving Variability and Cloud Modulation on a Planetary-mass Object

open access: yesThe Astrophysical Journal
Planetary-mass objects and brown dwarfs at the transition ( T _eff ∼ 1300 K) from relatively red L dwarfs to bluer mid-T dwarfs show enhanced spectrophotometric variability.
Michael K. Plummer   +4 more
doaj   +1 more source

Microphysical Prescriptions for Parameterized Water Cloud Formation on Ultra-cool Substellar Objects

open access: yesThe Astrophysical Journal
Water must condense into ice clouds in the coldest brown dwarfs and exoplanets. When they form, these icy clouds change the emergent spectra, temperature structure, and albedo of the substellar atmosphere. The properties of clouds are governed by complex
James Mang   +3 more
doaj   +1 more source

English as an additional language (EAL): Decolonising provision and practice

open access: yesThe Curriculum Journal, Volume 34, Issue 1, Page 62-82, March 2023., 2023
Abstract This paper examines ways in which approaches to English as Additional Language (EAL) can be decolonised in schools. In an attempt to break traditional divides between academic research and pedagogical practice in this area, this article adopts a collaborative perspective, between an EAL advisory and support teacher and an academic member of ...
Oakleigh Welply
wiley   +1 more source

Preliminary Trigonometric Parallaxes of 184 Late-T and Y Dwarfs and an Analysis of the Field Substellar Mass Function into the “Planetary” Mass Regime [PDF]

open access: bronze, 2019
J. Davy Kirkpatrick   +18 more
openalex   +1 more source

Functional diversity of farmland bees across rural–urban landscapes in a tropical megacity

open access: yesEcological Applications, Volume 32, Issue 8, December 2022., 2022
Abstract Urbanization poses a major threat to biodiversity and food security, as expanding cities, especially in the Global South, increasingly compete with natural and agricultural lands. However, the impact of urban expansion on agricultural biodiversity in tropical regions is overlooked.
Gabriel Marcacci   +8 more
wiley   +1 more source

Analysis of the fractional relativistic polytropic gas sphere. [PDF]

open access: yesSci Rep, 2023
Aboueisha MS   +5 more
europepmc   +1 more source

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