Results 121 to 130 of about 2,956 (261)
Analysis of spectral characteristics of long-period comets
, 1992 Изучается зависимость числа открытий комет с различными спектральными характеристиками от фазы солнечной активности. Показано, что кометы, в спектре которых преобладает континуум, чаще обнаруживаются вблизи фазы солнечной активности 0.550, т.е.
Гулиев, А.С.
core +4 more sources
Prediscovery Activity of New Interstellar Object 3I/ATLAS: Rapid Brightening from 6 to 4 au
The Astrophysical Journal LettersWe report on the prediscovery observations and constraints of the new interstellar comet 3I/2025 N1 (ATLAS), made by the Zwicky Transient Facility, for the inbound leg of the comet out to a heliocentric distance of r _h = 17 au, or approximately a year ...
Quanzhi Ye +11 more
doaj +1 more source
Journal of Animal Breeding and Genetics, EarlyView.ABSTRACT Recent studies suggest that variations in milk yield during lactation can serve as a metric for assessing individual resilience, with minimum fluctuations reflecting greater resilience in cows. With automatic milking systems, multiple records can be obtained from many cows on a daily basis. Given that animals are continually exposed to a range
M. Agyiri +7 more
wiley +1 more source
Long-term orbital evolution of short-period comets found in Project Cosmo-DICE
, 1992 Orbital evolutions of about 160 short-period (SP) comets are numerically integrated for 4400 years in the framework of a realistic dynamical model. By the round-trip error in closure test, a reliable time space of the integrated orbits is estimated for ...
Nakamura, Tsuko, Yoshikawa, Makoto
core
, 2002 This is the first of a series of papers presenting an attempt to reproduce the mechanisms acting currently on the Oort cloud of comets and producing the observed long-period comets.
P. A. Dybczyński
core +1 more source
Testing MOND on Small Bodies in the Remote Solar System
The Astrophysical JournalModified Newtonian dynamics (MOND), which postulates a breakdown of Newton's laws of gravity/dynamics below some critical acceleration threshold, can explain many otherwise puzzling observational phenomena on galactic scales.
David Vokrouhlický +2 more
doaj +1 more source
A description of dental microanatomy and implantation geometry in Chamaeleonidae
Journal of Anatomy, EarlyView.A reassessment of the dental histology in adult chamaeleons reveals the presence of periodontal ligament. Alongside alveolar bone and cementum, these tissues together constitute a compacted and remodelled tripartite periodontium. Our findings include the novel observation of plicidentine‐like protuberances of dentine within underlying bone.
Giles D. Sukkert +4 more
wiley +1 more source
The Astronomical JournalHyperactive comet activity typically becomes evident beyond the frost line (∼3–4 au) where it becomes too cold for water-ice to sublimate. If carbon monoxide (CO) and carbon dioxide (CO _2 ) are the species that drive activity at sufficiently large ...
Dave G. Milewski +5 more
doaj +1 more source
Local Elites in Chile's Pisco Valley: Dispossession, Legal Mobilisation and Intertwined Citizenship
Journal of Agrarian Change, EarlyView.ABSTRACT In countries in the Global South, citizenship is often closely tied to access to water and land ownership. In Latin America, the literature has primarily explored social mobilisation and identity reconfiguration in response to development‐driven processes of land and water dispossession affecting peasants, rural and Indigenous communities ...
Chloé Nicolas‐Artero
wiley +1 more source
The Astronomical JournalComets, relics from the early solar system, consist of dust and ice. The ice sublimates as comets approach the Sun, ejecting dust from their nuclei seen as activity.
Yuna G. Kwon +6 more
doaj +1 more source