Results 151 to 160 of about 709,246 (279)
The Elliptical-Spheroidal and Elliptical-Elliptical Galaxy Dichotomies
, 2008 8 pages, 4 figures, requires asp2006.sty, to be published in Galaxy Evolution: Emerging Insights and Future Challenges, ed. S. Jogee et al., Astron. Soc.
openaire +2 more sources
A Method of Moments Estimator of Tail Dependence in Elliptical Copula Models [PDF]
An elliptical copula model is a distribution function whose copula is that of an elliptical distri- bution. The tail dependence function in such a bivariate model has a parametric representation with two parameters: a tail parameter and a correlation ...
Krajina, A.
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The Astrophysical JournalWe report the discovery of J1218+1813, a circular diffuse radio source detected in the Very Large Array (VLA) FIRST survey at 1400 MHz. The source has an angular diameter of approximately one arcminute, corresponding to a physical size of ∼180 kpc, and ...
Shobha Kumari +2 more
doaj +1 more source
Posterior moments of scale parameters in elliptical regression models. [PDF]
In the general multivariate elliptical class of data densities we define a scalar precision parameter r through a normalization of the scale matrix V. Using the improper prior on r which preserves the results under Normality for all other parameters and ...
Osiewalski, Jacek, Steel, Mark F.J.
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Automatic Detection of Galaxy Type From Datasets of Galaxies Image Based on Image Retrieval Approach
Scientific Reports, 2017 This paper presents a new approach for the automatic detection of galaxy morphology from datasets based on an image-retrieval approach. Currently, there are several classification methods proposed to detect galaxy types within an image.
Mohamed Abd El Aziz +2 more
doaj +1 more source
The Distribution of Elliptical Galaxy Shapes
, 2007 : An estimate of the parent distribution function of the intrinsic shapes of elliptical galaxies is calculated by fitting photometric and kinematic data from the Davies and Birkinshaw sample to a set of dynamical models. 1.
Stromlo Symposium +5 more
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The Astrophysical JournalHow a seemingly “dead” host galaxy provides fuel for its active galactic nucleus (AGN) remains an unresolved problem. Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we present a new high-sensitivity atomic-hydrogen (H i ...
Jin-Long Xu +6 more
doaj +1 more source
Absorption Line Gradients of an Elliptical Galaxy NGC 5322 [PDF]
Journal of Astronomy and Space Sciences, 1999 Archival long-slit spectra, covering the wavelength range 4050Å - 5150Å, have been used to investigate the radial behavior of absorption line features (G4300, Fe4383, Ca4455, Fe44531, Fe4668, and Hα) of an eliptical galaxy NGC 5322.
Young-Jong Sohn +2 more
doaj
Star formation outside the elliptical galaxy NGC2865 [PDF]
, 2013 We have searched for young stellar complexes\ud around the elliptical galaxy NGC2865.\ud We find them in a ring of HI around the\ud galaxy. Using the Multi-Slit Imaging Spectroscopy\ud Technique (MSIS), we detected a total\ud of seven Hα emitters in the ...
Oliveira, Claudia Lucia Mendes de +5 more
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88th Annual Meeting of the Meteoritical Society 2026: Abstracts
Meteoritics &Planetary Science, Volume 61, Issue S1, Page S48-S551, August 2026.
wiley +1 more source