Results 11 to 20 of about 35,742 (267)

ASTEROIDS

open access: yesRudarsko-geološko-naftni Zbornik, 2016
Asteroids are the largest minor bodies in the Solar System. Nowadays they are in the research focus due to several facts about them: first, a subclass of asteroids can collide with Earth, and consequences of such a collision are dramatic.
Željko Andreić
doaj   +3 more sources

The Active Asteroids [PDF]

open access: yesThe Astronomical Journal, 2012
25 pages, 18 figures; This chapter is to appear in the book ASTEROIDS IV, part of the University of Arizona Space Science Series, edited by P. Michel, F.
Jessica Agarwal   +2 more
openaire   +7 more sources

Asteroid Family Associations of Active Asteroids [PDF]

open access: yesThe Astronomical Journal, 2018
Abstract We report on the results of a systematic search for associated asteroid families for all active asteroids known to date. We find that 10 out of 12 main-belt comets (MBCs) and five out of seven disrupted asteroids are linked with known or candidate families, rates that have ∼0.1% and ∼6% probabilities, respectively, of occurring ...
Yoonyoung Kim   +4 more
openaire   +3 more sources

Land‐use alters the form of larval density dependence to increase extinction risk in a grassland amphibian

open access: yesAnimal Conservation, Volume 25, Issue 6, Page 771-781, December 2022., 2022
We combined the results of a mesocosm experiment with demographic population modeling to investigate how the conversion of native prairie to agricultural grasslands dominated by Tall Fescue grass (Lolium arundinacea) affected larval density dependence and adult population size of an imperiled amphibian, Lithobates areolatus (Crawfish Frog).
C. S. Kross, J. D. Willson
wiley   +1 more source

Integrative biology of injury in animals

open access: yesBiological Reviews, Volume 98, Issue 1, Page 34-62, February 2023., 2023
ABSTRACT Mechanical injury is a prevalent challenge in the lives of animals with myriad potential consequences for organisms, including reduced fitness and death. Research on animal injury has focused on many aspects, including the frequency and severity of wounding in wild populations, the short‐ and long‐term consequences of injury at different ...
Corey W. Rennolds, Alexandra E. Bely
wiley   +1 more source

Reproductive biology of the bathyal asteroid Ctenodiscus crispatus in the northeastern Pacific

open access: yesInvertebrate Biology, Volume 141, Issue 4, December 2022., 2022
Abstract The mud star Ctenodiscus crispatus has a broad distribution from Arctic waters into the northern Atlantic and Pacific oceans. Populations in the Atlantic are well studied and show oocyte sizes indicative of continuous gametogenesis with aseasonal spawning.
Sinja Rist   +6 more
wiley   +1 more source

Asteroid Photometry [PDF]

open access: yes, 2015
Asteroid photometry has three major applications: providing clues about asteroid surface physical properties and compositions, facilitating photometric corrections, and helping design and plan ground-based and spacecraft observations. The most significant advances in asteroid photometry in the past decade were driven by spacecraft observations that ...
Li, Jian Yang   +4 more
openaire   +2 more sources

Asteroids and andesites [PDF]

open access: yesNature, 2009
The production of terrestrial andesites in subduction zones is well established. Day et al. describe two examples of meteorites (GRA 06128 and GRA 06129) that they claim to represent "an entirely new mode of generation of andesite crust compositions" on asteroids; this suggestion has wide implications for the generation of andesitic planetary crusts in
Arculus, Richard   +3 more
openaire   +4 more sources

Observational Data and Orbits of the Asteroids Discovered at the Molėtai Observatory in 2008–2009

open access: yesOpen Astronomy, 2016
We present the statistics of the asteroids observed and discovered at the Molėtai Observatory, Lithuania, in 2008–2009 within the project for astrometric observations of the near-Earth objects (NEOs), the main belt asteroids and comets.
Černis K.   +2 more
doaj   +1 more source

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