Results 21 to 30 of about 480,960 (375)
Publications of the Astronomical Society of the Pacific, 1973 Electrographic and spectroscopic observations have been obtained of the peculiar galaxy NGC 523. The observations suggest that the pecularities of the system result from a close encounter by two dwarf galaxies, with tidal interaction responsible for the formation of the galactic bridge and tails.
Guido Chincarini, Harry M. Heckathorn
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A local measurement of the growth rate from peculiar velocities and galaxy clustering correlations in the 6dF Galaxy Survey [PDF]
Monthly notices of the Royal Astronomical Society, 2022 Galaxy peculiar velocities provide an integral source of cosmological information that can be harnessed to measure the growth rate of large scale structure and constrain possible extensions to General Relativity.
R. Turner, C. Blake, R. Ruggeri
semanticscholar +1 more source
Joint growth-rate measurements from redshift-space distortions and peculiar velocities in the 6dF Galaxy Survey [PDF]
, 2020 We present a new model for the cross-covariance between galaxy redshift-space distortions and peculiar velocities. We combine this with the auto-covariance models of both probes in a fully self-consistent, maximum-likelihood method, allowing us to ...
Caitlin J. Adams, C. Blake
semanticscholar +1 more source
Merging cold front and AGN feedback in the peculiar galaxy cluster Abell 2626 [PDF]
Monthly notices of the Royal Astronomical Society, 2019 This paper presents the analysis of a combined 134 ks {\it Chandra} data of a peculiar galaxy cluster Abell 2626. This study confirms the earlier detection of the east cavity at $\sim$13 kpc and reports detection of a new cavity at $\sim$39 kpc on the ...
S. Kadam +3 more
semanticscholar +1 more source
The Peculiar Galaxy NGC 1097 [PDF]
Monthly Notices of the Royal Astronomical Society, 1975 R. D. Wolstencroft, W. J. Zealey
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The Astrophysical Journal, 2023 The detonation of a thin (≲0.03 M _⊙ ) helium shell (He-shell) atop a ∼1 M _⊙ white dwarf (WD) is a promising mechanism to explain normal Type Ia supernovae (SNe Ia), while thicker He-shells and less massive WDs may explain some recently observed ...
Chang Liu +27 more
doaj +1 more source
Properties of Galaxies with Peculiar Nuclei [PDF]
Publications of the Astronomical Society of the Pacific, 1967 In a former note (Sersic and Pastoriza 1965) we published the results of a survey of bright southern galaxies which were inspected for peculiarities in their nuclei. Although the sample was small ( 35 galaxies) it suggested a relationship between the existence of a bar and the presence of abnormal features in their nuclei.
Sérsic, José Luis, 1933-1993 +1 more
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Automatic detection and quantitative assessment of peculiar galaxy pairs in Sloan Digital Sky Survey [PDF]
, 2014 We applied computational tools for automatic detection of peculiar galaxy pairs. We rst detected in SDSS DR7 400,000 galaxy images with i magnitude
L. Shamir, J. Wallin
semanticscholar +1 more source
Cosmological Parameter Constraints from the SDSS Density and Momentum Power Spectra
The Astrophysical Journal, 2023 We extract the galaxy density and momentum power spectra from a subset of early-type galaxies in the Sloan Digital Sky Survey (SDSS) DR7 main galaxy catalog. Using galaxy distance information inferred from the improved fundamental plane described in Yoon
Stephen Appleby +5 more
doaj +1 more source
The Impact of Peculiar Velocities on the Estimation of the Hubble Constant from Gravitational Wave Standard Sirens [PDF]
, 2020 In this work we investigate the systematic uncertainties that arise from the calculation of the peculiar velocity when estimating the Hubble constant ($H_0$) from gravitational wave standard sirens.
Braden, Jonathan +4 more
core +2 more sources