Results 51 to 60 of about 95,570 (274)
An efficient way to use MS‐CLEAN associated with Shannon's entropy
IET Image Processing, Volume 15, Issue 10, Page 2319-2331, August 2021., 2021 Abstract This article covers deconvolution methods in the context of radio astronomical images. A new formulation is proposed to deal with negative brightness, deconvoluting separately the positive and negative brightness of the sky. The positive brightness is physically possible, but negative brightness is a degradation product.
Ramon G. Campos, Evandro O. T. Salles
wiley +1 more source
Odessa 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
New 6 and 3-cm radio-continuum maps of the Small Magellanic Cloud, Part I: The maps [PDF]
Serbian Astronomical Journal, 2011 We present new 6 and 3-cm radio-continuum maps of the Small Magellanic Cloud (SMC), created with the "peeling" technique and a joint deconvolution. The maps have resolutions of 3000 and 2000 and r.m.s., noise of 0.7 and 0.8 mJy/beam at 6 and 3 ...
Crawford E. J. +7 more
doaj +1 more source
Discovery of 14 radio pulsars in a survey of the Magellanic Clouds [PDF]
, 2006 A systematic survey of the Large and Small Magellanic Clouds for radio pulsars using the Parkes radio telescope and the 20-cm multibeam receiver has resulted in the discovery of 14 pulsars and the redetection of five of the eight previously known spin ...
Crawford, Fronefield +4 more
core +3 more sources
The supernova remnant population of the Small Magellanic Cloud [PDF]
Astronomy & Astrophysics, 2019 Aims.We present a comprehensive study on the supernova remnant (SNR) population of the Small Magellanic Cloud (SMC). We measured multiwavelength properties of the SMC SNRs and compare them to those of the Large Magellanic Cloud (LMC) population.Methods ...
P. Maggi +8 more
semanticscholar +1 more source
Heavy-element yields and abundances of asymptotic giant branch models with a Small Magellanic Cloud metallicity [PDF]
, 2018 We present new theoretical stellar yields and surface abundances for asymptotic giant branch (AGB) models with a metallicity appropriate for stars in the Small Magellanic Cloud (SMC, $Z= 0.0028$, [Fe/H] $\approx -0.7$).
Amanda I. Karakas +5 more
semanticscholar +1 more source
An Updated Small Magellanic Cloud and Magellanic Bridge Catalog of Star Clusters, Associations, and Related Objects [PDF]
Astronomical Journal, 2019 We present a catalog of star clusters, associations, and related extended objects in the Small Magellanic Cloud (SMC) and the Magellanic Bridge with 2741 entries, a factor 2 more than a previous version from a decade ago.
E. Bica +7 more
semanticscholar +1 more source
X‐Ray Pulsars in the Small Magellanic Cloud [PDF]
The Astrophysical Journal, 2004 final version accepted in The Astrophysical ...
Majid, W. A., Lamb, R. C., Macomb, D. J.
openaire +2 more sources
The Small Magellanic Cloud [PDF]
Symposium - International Astronomical Union, 1959 In 1957 a two-year photometric study of the Small Magellanic Cloud, sponsored by Indiana University and supported by the National Science Foundation was completed. Six region swere investigated. They are three on the edge of the SMC centered on conspicuous star clusters and three nearer the center.
openaire +1 more source
Small Dwarf Galaxies Within Larger Dwarfs: Why Some Are Luminous While Most Go Dark [PDF]
, 2008 We consider the possibility that the Magellanic Clouds were the largest members of a group of dwarf galaxies that entered the Milky Way (MW) halo at late times. Seven of the eleven brightest satellites of the MW may have been part of this system.
Alcock +40 more
core +1 more source