Results 21 to 30 of about 370,836 (359)
The Merger Rate of Massive Galaxies [PDF]
The Astrophysical Journal, 2006 We calculate the projected two point correlation function for samples of luminous and massive galaxies in the COMBO-17 photometric redshift survey, focusing particularly on the amplitude of the correlation function at small projected radii and exploring the constraints such measurements can place on the galaxy merger rate.
Bell, E +5 more
openaire +4 more sources
Using transfer learning to detect galaxy mergers [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We investigate the use of deep convolutional neural networks (deep CNNs) for automatic visual detection of galaxy mergers. Moreover, we investigate the use of transfer learning in conjunction with CNNs, by retraining networks first trained on pictures of
Sandro Ackermann +4 more
semanticscholar +1 more source
Effect of galaxy mergers on star-formation rates [PDF]
Astronomy & Astrophysics, 2019 Context. Galaxy mergers and interactions are an integral part of our basic understanding of how galaxies grow and evolve over time. However, the effect that galaxy mergers have on star-formation rates (SFRs) is contested, with observations of galaxy ...
W. J. Pearson +13 more
semanticscholar +1 more source
The Chandra view of galaxy mergers [PDF]
Monthly Notices of the Royal Astronomical Society, 2007 From a Chandra survey of nine interacting galaxy systems the evolution of X-ray emission during the merger process has been investigated. It is found that the X-ray luminosity peaks ~300 Myr before nuclear coalescence, and then dips, even though we know that rapid and increasing activity is still taking place at this time.
Brassington, N. J. +2 more
openaire +4 more sources
Identifying galaxy mergers in observations and simulations with deep learning [PDF]
Astronomy & Astrophysics, 2019 Context. Mergers are an important aspect of galaxy formation and evolution. With large upcoming surveys, such as Euclid and LSST, accurate techniques that are fast and efficient are needed to identify galaxy mergers for further study. Aims.
W. Pearson +4 more
semanticscholar +1 more source
Creating lenticular galaxies with mergers [PDF]
Proceedings of the International Astronomical Union, 2016 AbstractLenticular galaxies (S0s) represent the majority of early-type galaxies in the local Universe, but their formation channels are still poorly understood. While galaxy mergers are obvious pathways to suppress star formation and increase bulge sizes, the marked parallelism between spiral and lenticular galaxies (e.g.
Alejandro Borlaff +10 more
openaire +6 more sources
Modelling feedback from stars and black holes in galaxy mergers [PDF]
, 2004 We describe techniques for incorporating feedback from star formation and black hole (BH) accretion into simulations of isolated and merging galaxies. At present, the details of these processes cannot be resolved in simulations on galactic scales.
V. Springel, T. Matteo, L. Hernquist
semanticscholar +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
Accurate Identification of Galaxy Mergers with Imaging [PDF]
Astrophysical Journal, 2019 Merging galaxies play a key role in galaxy evolution, and progress in our understanding of galaxy evolution is slowed by the difficulty of making accurate galaxy merger identifications.
R. Nevin +3 more
semanticscholar +1 more source
Chemie Ingenieur Technik, EarlyView., 2023 Let us consider an alternative perspective on climate change: The sum of solar radiation and heat generated by human activity result in a net energy input of 1.96 times that of the Sun on the Earth's surface. The expanding global population is expected to exacerbate this issue. Potential solutions are proposed, including replacement and heat recycling.
Martin Bertau, Gerald Steiner
wiley +1 more source