Results 21 to 30 of about 6,898,231 (288)

Galaxy Zoo: Mergers – Dynamical models of interacting galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2016
The dynamical history of most merging galaxies is not well understood. Correlations between galaxy interaction and star formation have been found in previous studies, but require the context of the physical history of merging systems for full insight into the processes that lead to enhanced star formation.
Holincheck, Anthony J., Wallin, John F., Borne, Kirk, Fortson, Lucy, Lintott, Chris, Smith, Arfon M., Bamford, Steven, Keel, William C., Parrish, Michael   +8 more
openaire   +5 more sources

Investigating the Effect of Galaxy Interactions on the Enhancement of Active Galactic Nuclei at 0.5 < z < 3.0

Astrophysical Journal, 2020
Galaxy interactions and mergers are thought to play an important role in the evolution of galaxies. Studies in the nearby universe show a higher fraction of active galactic nuclei (AGNs) in interacting and merging galaxies than in their isolated ...
Ekta A. Shah, J. Kartaltepe, Christina T. Magagnoli, I. Cox, Caleb T. Wetherell, B. Vanderhoof, A. Calabró, N. Chartab, C. Conselice, D. Croton, J. Donley, L. D. Groot, A. de la Vega, N. Hathi, O. Ilbert, H. Inami, D. Kocevski, A. Koekemoer, B. Lemaux, K. Mantha, S. Marchesi, M. Martig, D. Masters, E. McGrath, D. H. Mcintosh, J. Moreno, H. Nayyeri, B. A. Pampliega, M. Salvato, G. Snyder, A. Straughn, E. Treister, M. E. Weston   +32 more
semanticscholar   +1 more source

Galaxy Interactions Trigger Rapid Black Hole Growth: an unprecedented view from the Hyper Suprime-Cam Survey [PDF]

, 2017
Collisions and interactions between gas-rich galaxies are thought to be pivotal stages in their formation and evolution, causing the rapid production of new stars, and possibly serving as a mechanism for fueling supermassive black holes (BH).
A. Goulding, J. Greene, R. Bezanson, J. Greco, S. Johnson, A. Leauthaud, Y. Matsuoka, E. Medezinski, A. Price-Whelan   +8 more
semanticscholar   +1 more source

The changing GMC population in galaxy interactions [PDF]

Monthly notices of the Royal Astronomical Society, 2018
With the advent of modern observational efforts providing extensive giant molecular cloud catalogues, understanding the evolution of such clouds in a galactic context is of prime importance.
A. Pettitt, F. Egusa, C. Dobbs, E. Tasker, Y. Fujimoto, A. Habe   +5 more
semanticscholar   +1 more source

INTERACTIONS OF GALAXIES IN THE GALAXY CLUSTER ENVIRONMENT [PDF]

The Astrophysical Journal, 2009
We study the dependence of galaxy properties on the clustercentric radius and the environment attributed to the nearest neighbor galaxy using the SDSS galaxies associated with the Abell galaxy clusters. We find that there exists a characteristic scale where the properties of galaxies suddenly start to depend on the clustercentric radius at fixed ...
Park, Changbom, Hwang, Ho Seong
openaire   +2 more sources

Galaxy Zoo: quantifying morphological indicators of galaxy interaction★ [PDF]

Monthly Notices of the Royal Astronomical Society, 2012
We use Galaxy Zoo 2 visual classifications to study the morphological signatures of interaction between similar-mass galaxy pairs in the Sloan Digital Sky Survey. We find that many observable features correlate with projected pair separation; not only obvious indicators of merging, disturbance and tidal tails, but also more regular features, such as ...
Casteels, Kevin. R. V., Bamford, Steven P., Skibba, Ramin A., Masters, Karen L., Lintott, Chris J., Keel, William C., Schawinski, Kevin, Nichol, Robert C., Smith, Arfon M.   +8 more
openaire   +4 more sources

Galaxy Interactions: The Hi Signature [PDF]

Symposium - International Astronomical Union, 1999
HI observations are an excellent tool for investigating tidal interactions. Ongoing major and minor interactions which can lead to traumatic mergers or to accretion and the triggering of star formation, show distinct HI signatures. Interactions and mergers in the recent past can also be recognized in the HI structure and kinematics.
openaire   +2 more sources

Janus kinase 2 inhibition by pacritinib as potential therapeutic target for liver fibrosis

Hepatology, EarlyView., 2022
Diagram of the activation of the profibrotic and procontractile Janus kinase 2 (JAK2)/Ras homolog family member A/Rho‐kinase pathway and the inhibition of phosphorylated JAK2 by pacritinib to inhibit hepatic stellate cell activity. Abstract Background and Aims Janus kinase 2 (JAK2) signaling is increased in human and experimental liver fibrosis with ...
Sandra Torres, Cristina Ortiz, Nadine Bachtler, Wenyi Gu, Leon D. Grünewald, Nico Kraus, Robert Schierwagen, Christoph Hieber, Caroline Meier, Olaf Tyc, Maximilian Joseph Brol, Frank Erhard Uschner, Bart Nijmeijer, Christoph Welsch, Marie‐Luise Berres, Carmen Garcia‐Ruiz, Jose Carlos Fernandez‐Checa, Christian Trautwein, Thomas J. Vogl, Stefan Zeuzem, Jonel Trebicka, Sabine Klein   +21 more
wiley   +1 more source

The SEDs of interacting galaxies [PDF]

Proceedings of the International Astronomical Union, 2011
AbstractThe evolution of galaxies is greatly influenced by their interactions. As part of a program to study interacting galaxies, we have measured and modeled the spectral energy distributions (SEDs) from the ultraviolet (UV) to the far-infrared (FIR).
Lanz, Lauranne, Brassington, Nicola, Zezas, Andreas, Smith, Howard A., Ashby, Matthew L. N., da Cunha, Elisabete, Klein, Christopher, Jonsson, Patrik, Hayward, Christopher C., Hernquist, Lars, Fazio, Giovanni   +10 more
openaire   +2 more sources

Hidden Interaction in SBO galaxies [PDF]

International Astronomical Union Colloquium, 1990
Galaxies, like plants, show a large variety of grafts: an individual of some type connects physically with a neighborhood of same or different type. The effects of these interactions between galaxies have a broad range of morphologies depending, among other quantities, on the distance of the closest approach between systems and the relative size of the
GALLETTA, GIUSEPPE, BETTONI, DANIELA, OOSTERLOO T., FASANO G.   +3 more
openaire   +2 more sources