Results 21 to 30 of about 1,645,813 (249)

The Asymmetry of Galaxies: Physical Morphology for Nearby and High‐Redshift Galaxies [PDF]

The Astrophysical Journal, 2000
We present a detailed study of rotational asymmetry in galaxies for both morphological and physical diagnostic purposes. An unambiguous method for computing asymmetry is developed, robust for both distant and nearby galaxies. By degrading real galaxy images, we test the reliability of this asymmetry measure over a range of observational conditions, e.g.
Conselice, Christopher J., Bershady, Matthew A., Jangren, Anna   +2 more
openaire   +2 more sources

Toward Accurate Modeling of Galaxy Clustering on Small Scales: Halo Model Extensions and Lingering Tension

The Astrophysical Journal, 2023
This paper represents an effort to provide robust constraints on the galaxy–halo connection and simultaneously test the Planck ΛCDM cosmology using a fully numerical model of small-scale galaxy clustering.
Gillian D. Beltz-Mohrmann, Adam O. Szewciw, Andreas A. Berlind, Manodeep Sinha   +3 more
doaj   +1 more source

Galaxy And Mass Assembly (GAMA) : the galaxy luminosity function within the cosmic web [PDF]

, 2015
EE acknowledges support from the Science and Technology Facilities Council. TMR acknowledges support from a ERC Starting Grant (DEGAS-259586). CH acknowledges support from the ERC under the EC FP7 grant number 240185.
Loveday, J, Baldry, I., E Eardley (16219808), T McNaught-Roberts (16161611), Driver, S. P., M E Cluver (16161572), M Alpaslan (16114469), I Baldry (16191140), Robotham, ASG, Robotham, A., Liske, J, Jonathan Loveday (4460899), Norberg, P, Driver, S.P., Eardley, E, Brough, S ; https://orcid.org/, Alpaslan, M., J Bland-Hawthorn (16111139), D J Farrow (16219811), Farrow, DJ, A S G Robotham (16143614), McNaught-Roberts, T., Brough, S., Loveday, J., Driver, SP, Liske, J., Farrow, D., Heymans, C, P Norberg (16143575), Peacock, JA, Alpaslan, M, J A Peacock (16045217), Robotham, A. S. G., Heymans, C., Bland-Hawthorn, J., Farrow, D. J., Bland-Hawthorn, J, Robotham, A.S.G., Baldry, I, Farrow, D.J., Peacock, J. A., Cluver, M., Driver, S., S Brough (16143590), McNaught-Roberts, T, Peacock, J.A., Norberg, P., J Liske (7814738), Eardley, E., Cluver, ME, Peacock, J., Cluver, M.E., C Heymans (16161599), Cluver, M. E., S P Driver (16143581)   +54 more
core   +1 more source

Cluster Physics with Merging Galaxy Clusters

Frontiers in Astronomy and Space Sciences, 2016
Collisions between galaxy clusters provide a unique opportunity to study matter in a parameter space which cannot be explored in our laboratories on Earth.
Sandor M. Molnar
doaj   +1 more source

Forward Modeling of Galaxy Populations for Cosmological Redshift Distribution Inference

The Astrophysical Journal Supplement Series, 2023
We present a forward-modeling framework for estimating galaxy redshift distributions from photometric surveys. Our forward model is composed of: a detailed population model describing the intrinsic distribution of the physical characteristics of galaxies,
Justin Alsing, Hiranya Peiris, Daniel Mortlock, Joel Leja, Boris Leistedt   +4 more
doaj   +1 more source

Multimessenger Probes for New Physics in Light of A. Sakharov’s Legacy in Cosmoparticle Physics

Universe, 2021
A.D. Sakharov’s legacy in now standard model of the Universe is not reduced to baryosynthesis but extends to the foundation of cosmoparticle physics, which studies the fundamental relationship of cosmology and particle physics.
Maxim Khlopov
doaj   +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.
Cullen, Harriet, Alexander, Paul, Clemens, Marcel   +2 more
openaire   +2 more sources

Physical Properties and Environments of Nearby Galaxies [PDF]

Annual Review of Astronomy and Astrophysics, 2009
We review the physical properties of nearby, relatively luminous galaxies, using results from newly available massive data sets together with more detailed observations. First, we present the global distribution of properties, including the optical and ultraviolet (UV) luminosity, stellar mass, and atomic gas mass functions.
Blanton, Michael R., Moustakas, John
openaire   +2 more sources

Physical laboratory at the center of the Galaxy [PDF]

Uspekhi Fizicheskih Nauk, 2015
Review paper, 16 pages, 9 ...
Vyacheslav I. Dokuchaev, Yurii N. Eroshenko   +1 more
openaire   +3 more sources

Physical Classification of Galaxies with MOPED∕VESPA [PDF]

AIP Conference Proceedings, 2008
Invited talk at the class2008 meeting in ...
Raul Jimenez, Alan F. Heavens, Ben Panter, Rita Tojeiro, Coryn A.L. Bailer-Jones   +4 more
openaire   +2 more sources