Results 31 to 40 of about 49,316 (344)

Tracing kinematic (mis)alignments in CALIFA merging galaxies: Stellar and ionized gas kinematic orientations at every merger stage [PDF]

, 2015
We present spatially resolved stellar and/or ionized gas kinematic properties for a sample of 103 interacting galaxies, tracing all merger stages: close companions, pairs with morphological signatures of interaction, and coalesced merger remnants.
Aguerri, J. A. L., Barrera-Ballesteros, J. K., Bekeraite, Simona, Bland-Hawthorn, J., Bomans, D. J., Collaboration, the CALIFA, Cortijo-Ferrero, C., del Olmo, A., Delgado, R. M. González, Falcón-Barroso, J., García-Benito, R., García-Lorenzo, B., Husemann, B., Iglesias-Paramo, J., Kehrig, C., Lyubenova, M., Marino, R. A., Marquez, I., Masegosa, J., Mast, D., McIntosh, D. H., Monreal-Ibero, A., Méndez-Abreu, J., Sánchez, S. F., van de Ven, G., Verdes-Montenegro, L., Vílchez, J. M., Walcher, C. J., Wild, V., Ziegler, B.   +29 more
core   +5 more sources

DDO68 C: The Actual Appearance of a Ghost Satellite Dwarf through Adaptive Optics at the Large Binocular Telescope

The Astrophysical Journal Letters, 2023
Through adaptive optics (AO) imaging with the SOUL+LUCI instrument at the Large Binocular Telescope we were able to resolve, for the first time, individual stars in the gas-rich galaxy DDO68 C. This system was already suggested to be interacting with the
Francesca Annibali, Enrico Pinna, Leslie K. Hunt, Diego Paris, Felice Cusano, Michele Bellazzini, John M. Cannon, Raffaele Pascale, Monica Tosi, Fabio Rossi   +9 more
doaj   +1 more source

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

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

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

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

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 Great Observatories All-Sky LIRG Survey: Comparison of Ultraviolet and Far-Infrared Properties [PDF]

, 2010
The Great Observatories All-sky LIRG Survey (GOALS) consists of a complete sample of 202 Luminous Infrared Galaxies (LIRGs) selected from the IRAS Revised Bright Galaxy Sample (RBGS).
Appleton, Phil, Armus, Lee, Bothun, Greg, Bridge, Carrie, Chan, Ben H. P., Charmandaris, Vassilis, Evans, Aaron S., Frayer, David T., Haan, Sebastian, Howell, Justin H., Inami, Hanae, Kim, Dong-Chan, Lord, Steven, Madore, Barry F., Mazzarella, Joseph M., Melbourne, Jason, Petric, Andreea, Sanders, David B., Schulz, Bernhard, Surace, Jason A., U, Vivian, Vavilkin, Tatjana, Veilleux, Sylvain, Xu, Kevin   +23 more
core   +3 more sources

A Comparative Study of Knots of Star Formation in Interacting vs. Spiral Galaxies

, 2016
Interacting galaxies are known to have higher global rates of star formation on average than normal galaxies, relative to their stellar masses. Using UV and IR photometry combined with new and published H-alpha images, we have compared the star formation
Jones, Keith, Olmsted, Susan, Smith, Beverly J., Struck, Curtis, Zaragoza-Cardiel, Javier   +4 more
core   +1 more source

AstroSat-UVIT observations of a possibly interacting pair of galaxies in HCG 77

Astronomy & Astrophysics
Context. Interactions and mergers possibly enhance the star formation in dwarf galaxies in a group environment. Aims. We aim to study star-forming regions and the spectral energy distribution of two possibly interacting galaxies, PGC 56121 and PGC 56125,
Srivastava Anshul, Jassal Harvinder K., Gulati Mamta, Singh Kulinder P.   +3 more
doaj   +1 more source