Articles with "upper limits" as a keyword



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Neptune’s HCl upper limit from Herschel/HIFI

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Published in 2021 at "Icarus"

DOI: 10.1016/j.icarus.2020.114045

Abstract: Abstract Here we search for hydrogen chloride (HCl) in Neptune’s stratosphere using observations of the 1876.22 GHz J=3–2 transition from the Heterodyne Instrument for the Far-Infrared (HIFI) on Herschel. Observations comprise a 7.2 hr disc-averaged integration, originally… read more here.

Keywords: transition pressure; upper limits; herschel; upper limit ... See more keywords
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Upper limits for phosphine (PH3) in the atmosphere of Mars

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Published in 2021 at "Astronomy and Astrophysics"

DOI: 10.1051/0004-6361/202140868

Abstract: Phosphine (PH3) is proposed to be a possible biomarker in planetary atmospheres and has been claimed to have been observed in the atmosphere of Venus, sparking interest in the habitability of Venus’s atmosphere. Observations of… read more here.

Keywords: upper limits; atmosphere mars; ph3 atmosphere; limits phosphine ... See more keywords
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Theoretical upper limits of the thermal conductivity of Si3N4

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Published in 2023 at "Applied Physics Letters"

DOI: 10.1063/5.0149298

Abstract: Silicon nitride (Si3N4) is a promising substrate for high-power electronics due to its superior mechanical properties and potential outstanding thermal conductivity (κ). As experiments keep pushing the upper limit of κ of Si3N4, it is… read more here.

Keywords: theoretical upper; si3n4; limits thermal; upper limits ... See more keywords
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Adaptive variation in the upper limits of avian body temperature

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Published in 2022 at "Proceedings of the National Academy of Sciences of the United States of America"

DOI: 10.1073/pnas.2116645119

Abstract: Significance We compared body temperatures (Tb) and the associated thermoregulatory traits of 53 bird species from three climatically distinct areas to test the idea that maximum Tb and hyperthermia tolerance evolve in response to climate-related… read more here.

Keywords: adaptive variation; upper limits; variation; limits avian ... See more keywords
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Upper limits for mass and radius of objects around Proxima Cen from SPHERE/VLT

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Published in 2017 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnrasl/slw241

Abstract: The recent discovery of an earth-like planet around Proxima Centauri has drawn much attention to this star and its environment. We performed a series of observations of Proxima Centauri using Spectro-Polarimetric High-contrast Exoplanet REsearch (SPHERE),… read more here.

Keywords: upper limits; radius; around proxima; mass ... See more keywords
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Upper limits on the mass and luminosity of Population III-dominated galaxies

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Published in 2017 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnrasl/slw249

Abstract: We here derive upper limits on the mass and luminosity of Population III (POPIII) dominated proto-galaxies based on the collapse of primordial gas under the effect of angular momentum loss via Ly$\alpha$ radiation drag and… read more here.

Keywords: upper limits; luminosity population; luminosity; limits mass ... See more keywords
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Upper limits to body size imposed by respiratory–structural trade-offs in Antarctic pycnogonids

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Published in 2017 at "Proceedings of the Royal Society B: Biological Sciences"

DOI: 10.1098/rspb.2017.1779

Abstract: Across metazoa, surfaces for respiratory gas exchange are diverse, and the size of those surfaces scales with body size. In vertebrates with lungs and gills, surface area and thickness of the respiratory barrier set upper… read more here.

Keywords: upper limits; size; body size; respiratory ... See more keywords
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Jointly setting upper limits on multiple components of an anisotropic stochastic gravitational-wave background

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Published in 2021 at "Physical Review D"

DOI: 10.1103/physrevd.104.102003

Abstract: With the increasing sensitivities of the gravitational wave (GW) detectors and more detectors joining the international network, the chances of detection of a stochastic GW background (SGWB) is progressively increasing. Different astrophysical and cosmological processes… read more here.

Keywords: gravitational wave; setting upper; background; upper limits ... See more keywords