Results 1 to 10 of about 47,912 (274)

The AGN Luminosity Fraction in Merging Galaxies [PDF]

, 2018
Galaxy mergers are key events in galaxy evolution, often causing massive starbursts and fueling active galactic nuclei (AGN). In these highly dynamic systems, it is not yet precisely known how much starbursts and AGN respectively contribute to the total ...
Ashby, Matthew L. N., Dietrich, Jeremy, Hayward, Christopher C., Martínez-Galarza, Juan Rafael, Padilla, Andrés F. Ramos, Rosenthal, Lee, Smith, Howard A., Weiner, Aaron S., Willner, S. P., Zezas, Andreas   +9 more
core   +2 more sources

Two Candidates for Dual AGN in Dwarf-dwarf Galaxy Mergers

The Astrophysical Journal, 2023
Dual active galactic nuclei (DAGN) are important for understanding galaxy-merger-triggered fueling of black holes and the hierarchical growth of structures.
Marko Mićić, Olivia J. Holmes, Brenna N. Wells, Jimmy A. Irwin   +3 more
doaj   +1 more source

Deep Learning for Galaxy Mergers in the Galaxy Main Sequence [PDF]

, 2019
Starburst galaxies are often found to be the result of galaxy mergers. As a result, galaxy mergers are often believed to lie above the galaxy main sequence: the tight correlation between stellar mass and star formation rate.
Pearson, William J., Petrillo, Carlo E., Trayford, James, van der Tak, Floris F. S., Wang, Lingyu   +4 more
core   +3 more sources

The Effect of Mass Ratio on the Morphology and Time-scales of Disc Galaxy Mergers [PDF]

, 2009
The majority of galaxy mergers are expected to be minor mergers. The observational signatures of minor mergers are not well understood, thus there exist few constraints on the minor merger rate.
Abadi, Abazajian, Barnes, Bell, Bell, Bell, Bell, Binney, Bournaud, Bournaud, Boylan-Kolchin, Boylan-Kolchin, Broeils, Conselice, Conselice, Cox, Cox, Cox, Croton, Darg, De Jong, Di Matteo, Fakhouri, Genel, Guo, Hopkins, Hopkins, Jennifer M. Lotz, Joel R. Primack, Jogee, Johansson, Johnston, Jonsson, Jonsson, Jonsson, Katz, Kennicutt, Kitzbichler, Lacey, Leitherer, Lotz, Lotz, Lotz, Lotz, Moster, Naab, Naab, Patrik Jonsson, Patton, Purcell, Reichard, Robertson, Rocha, Rudnick, Shen, Somerville, Springel, Springel, Springel, Stewart, T. J. Cox, Velazquez   +61 more
core   +1 more source

Automatic quantitative morphological analysis of interacting galaxies [PDF]

, 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 ...
Holincheck, Anthony, Shamir, Lior, Wallin, John   +2 more
core   +1 more source

Back to the Green Valley: How to Rejuvenate an S0 Galaxy through Minor Mergers

Galaxies, 2015
About half of the S0 galaxies in the nearby Universe show signatures of recent or ongoing star formation. Whether these S0 galaxies were rejuvenated by the accretion of fresh gas is still controversial.
Michela Mapelli
doaj   +1 more source

The Role of AGN in Luminous Infrared Galaxies from the Multiwavelength Perspective

Universe, 2022
Galaxy mergers provide a mechanism for galaxies to effectively funnel gas and materials toward their nuclei and fuel the central starbursts and accretion of supermassive black holes.
Vivian U
doaj   +1 more source

Building the red sequence through gas-rich major mergers [PDF]

, 2009
Understanding the details of how the red sequence is built is a key question in galaxy evolution. What are the relative roles of gas-rich vs. dry mergers, major vs. minor mergers or galaxy mergers vs. gas accretion? In Wild et al.
Arnouts, C. Jakob Walcher, Peter H. Johansson, Vivienne Wild, Walcher   +4 more
core   +1 more source

Stellar populations in gas-rich galaxy mergers II. Feedback effects of Type Ia and II supernovae [PDF]

, 1998
We numerically investigate chemodynamical evolution of major disk-disk galaxy mergers in order to explore the origin of mass-dependent chemical, photometric, and spectroscopic properties observed in elliptical galaxies.
Aragon-Salamanca A., Arimoto N., Bower R. G., Bressan A., Bressan A., Davies R. L., Fall S. M., Fioc M., Fritze, Jorgensen I., Kenji Bekki, Kodama T., Larson R. B., Matteucci F., Matteucci F., Navarro J., Peletier R. F., Sandage A., Schmidt M., Tantalo R., Wielen R., Yasuhiro Shioya, Ziegler B.   +22 more
core   +3 more sources

SDSS-IV MaNGA: How Galaxy Interactions Influence Active Galactic Nuclei

The Astrophysical Journal, 2023
We present a comparative study of active galactic nuclei (AGN) between galaxy pairs and isolated galaxies with the final data release of the MaNGA integral field spectroscopic survey.
Joshua L. Steffen, Hai Fu, Joel R. Brownstein, J. M. Comerford, I. Cruz-González, Y. Sophia Dai, Niv Drory, Arran C. Gross, C. Alenka Negrete, Renbin Yan   +9 more
doaj   +1 more source