Results 151 to 160 of about 49,023 (273)

Astrometry and Precise Radial Velocities Yield a Complete Orbital Solution for the Nearby Eccentric Brown Dwarf LHS 1610 b

open access: yesThe Astronomical Journal
The LHS 1610 system consists of a nearby ( d = 9.7 pc) M5 dwarf hosting a candidate brown dwarf companion in a 10.6 days, eccentric ( e ∼ 0.37) orbit.
Evan Fitzmaurice   +20 more
doaj   +1 more source

Chemical constitutions in the Colour Index™: A century of colourant classification

open access: yesColoration Technology, EarlyView.
Abstract This article details how the Colour Index™ (CI) system categorises and unambiguously labels commercial dyes and pigments based upon their chemical constitutions. It outlines the current process by which colourants that are new to the market find a place within CI and acquire generic identifiers.
Andrew Towns
wiley   +1 more source

Norwegian lemmings, Lemmus lemmus: a case for a strong herbivore–plant interaction

open access: yesEcography, EarlyView.
In his classical contributions, Olavi Kalela proposed that, due to the low primary productivity of the tundra, Norwegian lemmings are locked in a strong interaction with their winter forage plants. Proposedly, Norwegian lemmings respond to the threat of critical resource depletion by conducting long‐range migrations at their population peaks.
Lauri Oksanen   +7 more
wiley   +1 more source

The Discovery of a Second Field Methane Brown Dwarf from Sloan Digital Sky Survey Commissioning Data [PDF]

open access: green, 2000
Z. Tsvetanov   +25 more
openalex   +1 more source

Tests of Global Flights to Safety With US Financial Firm Bankruptcy Announcements

open access: yesEuropean Financial Management, EarlyView.
ABSTRACT This paper investigates whether bankruptcy announcements by large US financial institutions can induce flights to safety, leading investors to seek safer investments. To test this relationship, we employ a short‐horizon event study methodology and show that low‐risk investments—such as the US dollar, sovereign bonds and gold—exhibit ...
Theodosis L. Kallenos   +3 more
wiley   +1 more source

The Initial Mass Function of Low‐Mass Stars and Brown Dwarfs in Young Clusters [PDF]

open access: bronze, 2000
K. L. Luhman   +7 more
openalex   +1 more source

A focus on females can improve science and conservation

open access: yesIbis, EarlyView.
As a field, ecology has historically misunderstood or overlooked female organisms, or assumed that they are ‘similar enough’ to males. The typical unit of study for ecology research stops at the species level, but that can be too coarse and can obscure important intraspecific differences.
Joanna X. Wu   +4 more
wiley   +1 more source

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