Results 101 to 110 of about 849,819 (226)

Star Formation Histories of Dwarf Galaxies from the Colour‐Magnitude Diagrams of Their Resolved Stellar Populations

open access: yesAdvances in Astronomy, Volume 2010, Issue 1, 2010., 2010
In this tutorial paper we summarize how the star formation (SF) history of a galactic region can be derived from the colour‐magnitude diagram (CMD) of its resolved stars. The procedures to build synthetic CMDs and to exploit them to derive the SF histories (SFHs) are described, as well as the corresponding uncertainties.
Michele Cignoni   +2 more
wiley   +1 more source

The Truncated Circumgalactic Medium of the Large Magellanic Cloud

open access: yesThe Astrophysical Journal Letters
The Large Magellanic Cloud (LMC) is the nearest massive galaxy to the Milky Way (MW). Its circumgalactic medium (CGM) is complex and multiphase, containing both stripped H i structures like the Magellanic Stream and Bridge and a diffuse warm corona seen ...
Sapna Mishra   +8 more
doaj   +1 more source

Principal sensory experiences of forest visitors in four countries, for evidence‐based nature therapy

open access: yesPeople and Nature, Volume 6, Issue 6, Page 2480-2493, December 2024.
Abstract To advance the theoretical and practical underpinnings for nature therapies, i.e. nature exposure as a means to improve mental health, we compared the most memorable sensory experiences reported by forest tourists in Australia, Chile, China and Japan. Sensory experiences are a fundamental driver of the psychological effects of nature exposure.
Ralf C. Buckley   +2 more
wiley   +1 more source

The Relevance of Dynamical Friction for the MW/LMC/SMC Triple System

open access: yesUniverse
Simulations of structure formation in the standard cold dark matter cosmological model quantify the dark matter halos of galaxies. Taking into account dynamical friction between dark matter halos, we investigate the past orbital dynamical evolution of ...
Wolfgang Oehm, Pavel Kroupa
doaj   +1 more source

The Magellanic Stream. II

open access: yesThe Astronomical Journal, 1985
New high-sensitivity observations of the Magellanic Stream have been carried out from the Instituto Argentino de Radioastronomia. The Stream was surveyed between dec. -44 deg and -20 deg. The data are presented in the form of maps of H I column density distribution and velocity distribution.
openaire   +1 more source

Rutting and rambling: Movement characteristics reveal partial migration in adult male white‐tailed deer at a latitude void of chronic and severe environmental fluctuations

open access: yesEcology and Evolution, Volume 14, Issue 2, February 2024.
Some white‐tailed deer populations are migratory in locations with severe and chronic seasonal resource limitations, but biological justification for such behaviors is lacking at lower latitudes. We document migratory behavior termed the "mobile" movement strategy in 33% of adult male deer in a low‐latitude system void of such environmental pressures ...
Luke Resop   +4 more
wiley   +1 more source

The Metallicities of Five Small High-velocity Clouds

open access: yesThe Astrophysical Journal
High-velocity clouds (HVCs) are multiphase gas structures whose velocities (∣ v _LSR ∣ ≥ 100 km s ^−1 ) are too high to be explained by Galactic disk rotation.
Trisha Ashley   +7 more
doaj   +1 more source

Towards a fundamental astrometric reference system behind the Malleganic clouds : spectroscopic confirmation of new quasar candidates selected in the near-infrared [PDF]

open access: yes, 2016
Quasi-stellar objects (quasars) located behind nearby galaxies provide an excellent absolute reference system for astrometric studies, but they are difficult to identify because of fore- and background contamination.
Bekki, Kenji   +9 more
core   +1 more source

The Magellanic Corona and the formation of the Magellanic Stream

open access: yes, 2020
32 pages, 7 figures. Published in the September 20 issue of Nature. This is the authors' version before final edits.
Lucchini, Scott   +5 more
openaire   +2 more sources

The Small‐Scale Structure of the Magellanic Stream [PDF]

open access: yesThe Astrophysical Journal, 2002
We have mapped in neutral hydrogen (HI) two regions at the northern tip of the Magellanic Stream, known as MS V and MS VI, using the Arecibo telescope. The small-scale structure of the MS shows clumpy and head-tail morphology. The spatial power spectrum of this star-free intergalactic medium has a power-law behavior with the density slope of -3.8.
Snežana Stanimirović   +3 more
openaire   +2 more sources

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