Results 51 to 60 of about 274,720 (148)

New 20-cm radio-continuum study of the Small Magellanic Cloud, part II: Point sources [PDF]

open access: yesSerbian Astronomical Journal, 2011
We present a new catalogue of radio-continuum sources in the field of the Small Magellanic Cloud (SMC). This catalogue contains sources previously not found in 2370 MHz (λ=13 cm) with sources found at 1400 MHz (λ=20 cm) and 843 MHz (λ=36 cm). 45
Wong G.F.   +8 more
doaj   +1 more source

INTEGRAL observations of the Small Magellanic Cloud

open access: yes, 2007
The first INTEGRAL observations of the Small Magellanic Cloud (carried out in 2003) are reported in which two sources are clearly detected. The first source, SMC X-1, shows a hard X-ray eclipse and measurements of its pulse period indicate a continuation
Bird, A. J.   +12 more
core   +1 more source

Scylla. III. The Outside-in Radial Age Gradient in the Small Magellanic Cloud and the Star Formation Histories of the Main Body, Wing, and Outer Regions

open access: yesThe Astrophysical Journal
The proximity of the Large and Small Magellanic Clouds (LMC and SMC) provides the opportunity to study the impact of dwarf–dwarf interactions on their mass assembly with a unique level of detail. To this end, we analyze two-filter broadband imaging of 83
Roger E. Cohen   +15 more
doaj   +1 more source

New 20-cm radio-continuum study of the small Magellanic cloud - part III: Compact Hii regions [PDF]

open access: yesSerbian Astronomical Journal, 2012
We present and discuss a new catalogue of 48 compact Hii regions in the Small Magellanic Cloud (SMC) and a newly created deep 1420 MHz (λ=20 cm) radio-continuum image of the N19 region located in the southwestern part of the SMC.
Wong G.F.   +5 more
doaj   +1 more source

Rotation of the Milky Way and the formation of the Magellanic Stream [PDF]

open access: yes, 2010
We studied the impact of the revisited values for the LSR circular velocity of the Milky Way (Reid et al. 2004) on the formation of the Magellanic Stream. The LSR circular velocity was varied within its observational uncertainties as a free parameter of the interaction between the Large (LMC) and the Small (SMC) Magellanic Clouds and the Galaxy.
arxiv   +1 more source

New limb-darkening coefficients and synthetic photometry for model-atmosphere grids at Galactic, LMC, and SMC abundances

open access: yes, 2010
New grids of Atlas9 models have been calculated using revised convection parameters and updated opacity-distribution functions, for chemical compositions intended to be representative of solar, [M/H] = +0.3, +0.5, Large Magellanic Cloud (LMC), and Small ...
Allen   +83 more
core   +1 more source

ABOUT CHEMICAL COMPOSITION OF SUPERGIANT PMMR145 IN SMALL MAGELLANIC CLOUD. OSMIUM.

open access: yesOdessa Astronomical Publications, 2012
The abundance analysis of six Ksupergiants of the Small Magellanic Cloud (Hill 1997) showed that the heavier elements (La, Ce, Nd, Eu) have the excess relative to iron [El/Fe]=+0.4 dex, on average, for the sample of five stars (PMMR23, PMMR27, PMMR48 ...
V. F. Gopka   +3 more
doaj   +1 more source

The Diffuse Ionized Gas Halo of the Large Magellanic Cloud

open access: yesThe Astrophysical Journal, 2023
The Large Magellanic Cloud (LMC) has an extensive H α emission halo that traces an extended, warm ionized component of its interstellar medium. Using the Wisconsin H α Mapper telescope, we present the first kinematic H α survey of an extensive region ...
B. M. Smart   +6 more
doaj   +1 more source

A bright millisecond radio burst of extragalactic origin

open access: yes, 2007
Pulsar surveys offer one of the few opportunities to monitor even a small fraction (~0.00001) of the radio sky for impulsive burst-like events with millisecond durations.
D. J. Narkevic   +5 more
core   +1 more source

COSMIC-S: A Photometric Catalog of Observed Stars in the Small Magellanic Cloud

open access: yesThe Astrophysical Journal Supplement Series
The Dark Energy Camera (DECam) is a wide-field instrument mounted on the 4 m V. Blanco Telescope (Cerro Tololo Inter-American Observatory). Its impressive technical characteristics make it one of the most suitable ground-based telescopes for the ...
Antonio Franco   +3 more
doaj   +1 more source

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