Results 21 to 30 of about 741,496 (215)

Carbon and oxygen in H II regions of the Magellanic Clouds: abundance discrepancy and chemical evolution [PDF]

open access: yes, 2017
We present C and O abundances in the Magellanic Clouds derived from deep spectra of HII regions. The data have been taken with the Ultraviolet-Visual Echelle Spectrograph at the 8.2-m VLT. The sample comprises 5 HII regions in the Large Magellanic Cloud (
L. Cipriano   +15 more
semanticscholar   +1 more source

THE STUDY OF GALACTIC BEAT CEPHEIDS WITH APPLICATION OF ITS RESULTS TO THOSE IN THE MAGELLANIC CLOUDS

open access: yesOdessa Astronomical Publications, 2014
A thorough study of the correlation between P1=P0 ratio, fundamental period, and chemical composition (abundances of metals that compose Z) was conducted to investigate the significance of the iron-peak elements on the ratio. The results suggested a more
F. A. Chekhonadskikh   +2 more
doaj   +1 more source

BEASTS OF THE SOUTHERN WILD: DISCOVERY OF NINE ULTRA FAINT SATELLITES IN THE VICINITY OF THE MAGELLANIC CLOUDS [PDF]

open access: yes, 2015
We have used the publicly released Dark Energy Survey (DES) data to hunt for new satellites of the Milky Way (MW) in the southern hemisphere. Our search yielded a large number of promising candidates.
Sergey E. Koposov   +3 more
semanticscholar   +1 more source

Snake in the Clouds: a new nearby dwarf galaxy in the Magellanic bridge* [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
We report the discovery of a nearby dwarf galaxy in the constellation of Hydrus, between the Large and the Small Magellanic Clouds. Hydrus 1 is a mildy elliptical ultra-faint system with luminosity MV ∼ −4.7 and size 53 ± 3 pc, located 28 kpc from the
Sergey E. Koposov   +11 more
semanticscholar   +1 more source

The Dependence of Iron-rich Metal-poor Star Occurrence on Galactic Environment Supports an Origin in Thermonuclear Supernova Nucleosynthesis

open access: yesThe Astronomical Journal, 2023
It has been suggested that a class of chemically peculiar metal-poor stars called iron-rich metal-poor (IRMP) stars formed from molecular cores with metal contents dominated by thermonuclear supernova nucleosynthesis.
Zachary Reeves   +2 more
doaj   +1 more source

Identifying true satellites of the Magellanic Clouds. [PDF]

open access: yes, 2016
The hierarchical nature of ΛCDM suggests that the Magellanic Clouds must have been surrounded by a number of satellites before their infall into the Milky Way halo. Many of those satellites should still be in close proximity to the Clouds, but some could
L. Sales   +3 more
semanticscholar   +1 more source

THE ABUNDANCES OF THE ELEMENTS OF THE MAGELLANIC CLOUDS

open access: yesOdessa Astronomical Publications, 2010
The results of the spectroscopic researches of classical Chepheids of the Magellanic Clouds (MC) are presented in this paper. 21 spec tra for the Large Magellanic Cloud (LMC) and 10 for the Small Magellanic Cloud (SMC) were investigated.
F. A. Chekhonadskikh
doaj   +1 more source

Discovery of Extended Main-sequence Turnoffs in Four Young Massive Clusters in the Magellanic Clouds [PDF]

open access: yes, 2017
An increasing number of young massive clusters (YMCs) in the Magellanic Clouds have been found to exhibit bimodal or extended main sequences (MSs) in their color–magnitude diagrams (CMDs).
Chengyuan Li   +3 more
semanticscholar   +1 more source

FIRST GAIA LOCAL GROUP DYNAMICS: MAGELLANIC CLOUDS PROPER MOTION AND ROTATION [PDF]

open access: yes, 2016
We use the Gaia data release 1 (DR1) to study the proper motion (PM) fields of the Large and Small Magellanic Clouds (LMC, SMC). This uses the Tycho-Gaia Astrometric Solution (TGAS) PMs for 29 Hipparcos stars in the LMC and 8 in the SMC.
R. P. van der Marel, J. Sahlmann
semanticscholar   +1 more source

New Insights on 30 Dor B Revealed by High-quality Multiwavelength Observations

open access: yesThe Astronomical Journal, 2023
The supernova remnant (SNR) 30 Dor B is associated with the H ii region ionized by the OB association LH99. The complex interstellar environment has made it difficult to study the physical structure of this SNR.
Wei-An Chen   +6 more
doaj   +1 more source

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