Results 21 to 30 of about 114,760 (309)

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

On the Effects of Local Environment on Active Galactic Nucleus (AGN) in the Horizon Run 5 Simulation

The Astrophysical Journal, 2023
We use the Horizon Run 5 cosmological simulation to study the effect of galaxy intrinsic properties and the local environment on active galactic nuclei (AGNs) characterized by their threshold of the accretion rate.
Ankit Singh, Changbom Park, Ena Choi, Juhan Kim, Hyunsung Jun, Brad K. Gibson, Yonghwi Kim, Jaehyun Lee, Owain Snaith   +8 more
doaj   +1 more source

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

A Multiwavelength Study of Active Galactic Nuclei in Post-merger Remnants

The Astrophysical Journal, 2023
We investigate the role of galaxy mergers in triggering active galactic nuclei (AGN) in the nearby universe. Our analysis is based on a sample of 79 post-merger remnant galaxies with deep X-ray observations from Chandra/XMM-Newton capable of detecting a ...
Wenhao Li, Preethi Nair, Jimmy Irwin, Sara Ellison, Shobita Satyapal, Niv Drory, Amy Jones, William Keel, Karen Masters, David Stark, Russell Ryan, Kavya Mukundan   +11 more
doaj   +1 more source

Formation of a Massive Lenticular Galaxy Under the Tidal Interaction with a Group of Dwarf Galaxies

The Astrophysical Journal Letters, 2023
Based on the atomic-hydrogen (H i ) observations using the Five-hundred-meter Aperture Spherical radio Telescope, we present a detailed study of the gas-rich massive S0 galaxy NGC 1023 in a nearby galaxy group.
Jin-Long Xu, Ming Zhu, Kelley M. Hess, Naiping Yu, Chuan-Peng Zhang, Xiao-Lan Liu, Mei Ai, Peng Jiang, Jie Wang   +8 more
doaj   +1 more source

Self-interacting dark matter on small and large scales

SciPost Physics Proceedings, 2023
In the self-interacting dark matter paradigm (hereafter SIDM), dark matter (DM) is assumed to have non-gravitational interactions with itself. SIDM has been constrained by observations of galaxy clusters. More recently, measurements of large DM densities
Camila A. Correa
doaj   +1 more source

The Environment of ``E+A'' Galaxies [PDF]

, 1995
The violent star formation history of ``E+A'' galaxies and their detection almost exclusively in distant clusters is frequently used to link them to the ``Butcher-Oemler effect'' and to argue that cluster environment influences galaxy evolution.
Hashimoto, Y., Kirshner, R. P., Lin, H., Oemler, A., Shectman, S. A., Tucker, D., Zabludoff, A. I., Zaritsky, D.   +7 more
core   +2 more sources

Catching Tidal Dwarf Galaxies at a Later Evolutionary Stage with ALFALFA

The Astronomical Journal, 2023
We present deep optical imaging and photometry of four objects classified as “Almost-Dark” galaxies in the Arecibo Legacy Fast Arecibo L-band Feed Array (ALFALFA) survey because of their gas-rich nature and extremely faint or missing optical emission in ...
Laurin M. Gray, Katherine L. Rhode, Lukas Leisman, Pavel E. Mancera Piña, John M. Cannon, John J. Salzer, Lexi Gault, Jackson Fuson, Gyula I. G. Józsa, Elizabeth A. K. Adams, Nicholas J. Smith, Martha P. Haynes, Steven Janowiecki, Hannah J. Pagel   +13 more
doaj   +1 more source

The HI content of the Eridanus group of galaxies [PDF]

, 2004
The HI content of galaxies in the Eridanus group is studied using the GMRT observations and the HIPASS data. A significant HI deficiency up to a factor of 2-3 is observed in galaxies in the high galaxy density regions.
A. Biviano, A. Dressler, A. Omar, A. Omar, A. Schroder, A. Toomre, B. Binggeli, B. M. Poggianti, B. Moore, B. Vollmer, C. Magri, C. N. A. Willmer, G. Fasano, G. L. Hoffman, G. Paturel, H. Bravo-Alfaro, J. E. Gunn, J. M. Solanes, J. S. Mulchaey, K. S. Dwarakanath, L. L. Cowie, L. N. Costa da, L. Verdes-Montenegro, M. Colless, M. J. Meyer, M. P. Haynes, M. Valluri, P. E. J. Nulsen, R. B. Larson, R. D. Davies, R. Giovanelli, V. Cayatte   +31 more
core   +3 more sources

Signatures of Galaxy-Cluster Interactions: Spiral Galaxy Rotation Curve Asymmetry, Shape, and Extent [PDF]

, 2000
The environmental dependencies of the characteristics of spiral galaxy rotation curves are studied in this work. We use our large, homogeneously collected sample of 510 cluster spiral galaxy rotation curves to test the claim that the shape of a galaxy's ...
Adabi M. G., Adami C., Adami C., Amram P., Beauvais C., Boselli A., Daniel A. Dale, Distefano A., Eduardo Hardy, Haynes M. P., Haynes M. P., Luis E. Campusano, Martha P. Haynes, Persic M., Riccardo Giovanelli, Richter O.-G., Sperandio M.   +16 more
core   +4 more sources