Results 31 to 40 of about 48,188 (324)

Are Disks of Satellites Comprised of Tidal Dwarf Galaxies?

Galaxies, 2021
It was found that satellites of nearby galaxies can form flattened co-rotating structures called disks of satellites or planes of satellites. Their existence is not expected by the current galaxy formation simulations in the standard dark matter-based ...
Michal Bílek, Ingo Thies, Pavel Kroupa, Benoit Famaey   +3 more
doaj   +1 more source

The CFHTLS Deep Catalog of Interacting Galaxies I. Merger Rate Evolution to z=1.2 [PDF]

, 2010
We present the rest-frame optical galaxy merger fraction between 0 ...
Bridge, Carrie R., Carlberg, Raymond G., Sullivan, Mark   +2 more
core   +2 more sources

GOALS-JWST: Pulling Back the Curtain on the AGN and Star Formation in VV 114

The Astrophysical Journal Letters, 2023
We present results from the James Webb Space Telescope Director’s Discretionary Time Early Release Science program 1328 targeting the nearby, luminous infrared galaxy, VV 114.
J. Rich, S. Aalto, A. S. Evans, V. Charmandaris, G. C. Privon, T. Lai, H. Inami, S. Linden, L. Armus, T. Diaz-Santos, P. Appleton, L. Barcos-Muñoz, T. Böker, K. L. Larson, D. R. Law, M. A. Malkan, A. M. Medling, Y. Song, V. U, P. van der Werf, T. Bohn, M. J. I. Brown, L. Finnerty, C. Hayward, J. Howell, K. Iwasawa, F. Kemper, J. Marshall, J. M. Mazzarella, J. McKinney, F. Muller-Sanchez, E. J. Murphy, D. Sanders, B. T. Soifer, S. Stierwalt, J. Surace   +35 more
doaj   +1 more source

Tidal Disruption of Milky Way Satellites with Shallow Dark Matter Density Profiles

Galaxies, 2016
Dwarf galaxies of the Local Group provide unique possibilities to test current theories of structure formation. Their number and properties have put the broadly accepted cold dark matter model into question, posing a few problems. These problems now seem
Ewa L. Łokas
doaj   +1 more source

Scale Interactions and Galaxy Evolution [PDF]

Astrophysics and Space Science, 2003
To understand galaxies and their evolution, it is necessary to describe how the different scales interact: how the microscopic physics, such as star formation, or the large scale physics, such as galaxy interactions may modify the galaxy global shapes.
openaire   +3 more sources

Modelling ISO Galaxy Counts with Luminosity and Merger Rate Evolution [PDF]

, 1998
We model galaxy evolution in the 6.75 and 15 micron passbands of the ISO satellite, by combining models of galaxy evolution at optical wavelengths (which are consistent with the optical galaxy counts) with observed spectral energy distributions in the ...
Eales, Steve, Roche, Nathan
core   +2 more sources

The Larson-Tinsley Effect in the UV: Interacting vs. `Normal' Spiral Galaxies

, 2010
We compare the UV-optical colors of a well-defined set of optically-selected pre-merger interacting galaxy pairs with those of normal spirals. The shorter wavelength colors show a larger dispersion for the interacting galaxies than for the spirals.
Abazajian, Arp, Barton, Barton, Barton Gillespie, Beverly J. Smith, Boissier, Conroy, Conroy, Curtis Struck, de Vaucouleurs, de Vaucouleurs, Gil de Paz, Gil de Paz, Gómez, Hancock, Hancock, Keel, Krüger, Leitherer, Martin, Muñoz-Mateos, Neff, Sandage, Smith, Smith, Smith, Smith, Struck, Thilker, Thilker, Vázquez, West   +32 more
core   +1 more source

Probing the Physics of Interacting Galaxies

Astrophysics and Space Science, 2003
Both Arp 140 and Arp 104 reveal extended tidal tails in the HI. The Halpha and FIR fluxes of Arp 140 yield similar SFR of ~0.8 solar masses per year. In contrast the Halpha flux of Arp 104 yields a SFR of ~0.05 solar masses per year, ~ 20 times smaller than that obtained from the FIR flux.
Paul Alexander, Marcel Clemens, H. Cullen   +2 more
openaire   +3 more sources

Central star formation and metallicity in CALIFA interacting galaxies

, 2015
We use optical integral-field spectroscopic (IFS) data from 103 nearby galaxies at different stages of the merging event, from close pairs to merger remnants provided by the CALIFA survey, to study the impact of the interaction in the specific star ...
B. García-Lorenzo, B. Husemann, C. J. Walcher, C. Kehrig, collaboration the CALIFA, D. Mast, F. F. Rosales-Ortega, G. van de Ven, I. Márquez, J. Falcón-Barroso, J. Iglesias-Páramo, J. K. Barrera-Ballesteros, J. M. Vilchez, L. Galbany, M. A. Pérez-Torres, R. A. Marino, R. García-Benito, S. F. Sánchez, Á. R. López-Sánchez   +18 more
core   +2 more sources

The Radio Emission of Interacting Galaxies [PDF]

Symposium - International Astronomical Union, 1982
Gravitational interaction is a straightforward interpretation of some of the peculiar optical morphologies shown by galaxies. There have also been attempts to study the effects of a gravitational interaction on the radio continuum emission. Statistically, the central radio sources (inner 1 kpc) in interacting spiral galaxies are about three times ...
J. M. van der Hulst, E. Hummel, C. G. Kotanyi, J. H. van Gorkom   +3 more
openaire   +2 more sources