Results 51 to 60 of about 139,790 (125)
NO THE HOLMBERG EFFECT FOR GALAXY PAIRS SELECTED FROM THE SDSS DR9 AT Z ≤ 0:06
Odessa Astronomical Publications, 2016 We studied the Holmberg effect in galaxy pairs selected from the SDSS DR9, where 60561galaxies were limited by redshift 0.02 < z < 0.06 and absolute magnitude: Mr ≤ −20.7 m for central galaxies (N=18578) and Mr > −21.5 m for neighbor galaxies (N=41983 ...
D. V. Dobrycheva, I. B. Vavilova
doaj +1 more source
A Provocative Summary: Is There Any Unified Model for Triggering Active Galactic Nuclei ? [PDF]
arXiv, 2013 A provocative summary of the conference on "Galaxy Mergers in an Evolving Universe" is presented. The conference includes the following issues; 1) Mergers at low redshift, 2) Merger dynamics and numerical simulations, 3) Mergers in galaxy evolution, 4) Mergers and active galactic nuclei (AGNs), 5) Mergers at high redshift and submm galaxies, 6 ...
arxiv
The Astrophysical JournalThe morphology of a galaxy reflects the mix of physical processes occurring within and around it, offering indirect clues to its formation and evolution.
Nina Bonaventura +24 more
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AGN Feedback Signatures in UV Emission
GalaxiesSupermassive black holes (SMBH) are believed to influence galaxy evolution through AGN (active galactic nuclei) feedback. Galaxy mergers are key processes of galaxy formation that lead to AGN activity and star formation.
K. Rubinur
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The Astrophysical JournalThe formation pathways of lenticular galaxies (S0s) in field environments remain a matter of debate. We utilize the cosmological hydrodynamic simulation, NewHorizon , to investigate the issue. We select two massive star formation quenched S0s as our main
Seongbong Han +11 more
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Automatic quantitative morphological analysis of interacting galaxies [PDF]
arXiv, 2013 The large number of galaxies imaged by digital sky surveys reinforces the need for computational methods for analyzing galaxy morphology. While the morphology of most galaxies can be associated with a stage on the Hubble sequence, morphology of galaxy mergers is far more complex due to the combination of two or more galaxies with different morphologies
arxiv
A Study of the Merging Dwarf Galaxy VCC322
The Astrophysical JournalGalaxy interactions and mergers can enhance or reduce star formation, but a complete understanding of the involved processes is still lacking. The effect of dwarf galaxy mergers is even less clear than their massive counterpart.
Lan-Yue Zhang +2 more
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A Luminous X-Ray Active Galactic Nucleus in the Dwarf–Dwarf Galaxy Merger RGG 66
The Astrophysical JournalWe present the discovery of a luminous X-ray active galactic nucleus (AGN) in the dwarf galaxy merger RGG 66. The black hole is predicted to have a mass of M _BH ∼ 10 ^5.4 M _⊙ and to be radiating close to its Eddington limit ( L _bol / L _Edd ∼ 0.75 ...
Seth J. Kimbrell, Amy E. Reines
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The Astrophysical Journal LettersA crucial yet challenging task in galaxy evolution studies is the identification of distant merging galaxies, a task that suffers from a variety of issues ranging from telescope sensitivities and limitations to the inherently chaotic morphologies of ...
Caitlin Rose +34 more
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Tidal Tales of Minor Mergers: Star Formation in the Tidal Debris of Minor Mergers [PDF]
arXiv, 2009 How does the tidal debris of minor galaxy mergers contribute to structures in spiral galaxies or in the intergalactic medium? While major mergers are known to create structures such as tidal dwarf galaxies and star clusters within their tidal debris, less is known about minor mergers (mass ratios between a dwarf galaxy and disk galaxy of less than one ...
arxiv