Results 41 to 50 of about 114,760 (309)

The Environmental Dependence of the Evolving S0 Fraction [PDF]

, 2010
We reinvestigate the dramatic rise in the S0 fraction, f_S0, within clusters since z ~ 0.5. In particular, we focus on the role of the global galaxy environment on f_S0 by compiling, either from our own observations or the literature, robust line-of ...
Andreon, Balogh, Balogh, Bekki, Christlein, Couch, Couch, David J. Sand, Dennis W. Just, Dennis Zaritsky, Desai, Dressler, Fasano, Finn, Gregory Rudnick, Hinz, Icke, Kannappan, Kautsch, Kendall, Mihos, Moore, Moran, Papovich, Poggianti, Poggianti, Poggianti, Postman, Sandage, Smail, Smith, Tran, Vandana Desai, Wechsler, Wilman, Yang, Yang, Zabludoff, Zabludoff   +38 more
core   +2 more sources

Combined Effects of Galaxy Interactions and Large-Scale Environment on Galaxy Properties

, 2008
We inspect the coupled dependence of physical parameters of the SDSS galaxies on the small-scale (distance to and morphology of the nearest neighbor galaxy) and the large-scale (background density smoothed over 20 nearby galaxies) environments.
Adelman-McCarthy, Allam, Balogh, Barnes, Barton, Barton, Barton, Bell, Binney, Blanton, Blanton, Blanton, Blanton, Brighenti, Brown, Brown, Changbom Park, Choi, Conroy, Coziol, D'Onghia, de Propris, Ellison, Evrard, Geller, Gomez, Gott, Graham, Henriksen, Hernandez-Toledo, Hogg, Jeltema, Kacprzak, Kim, Li, Maller, Matsushita, Mendes de Oliveira, Naab, Park, Park, Park, Park, Patton, Patton, Poggianti, Prada, Quintero, Robertson, Schlegel, Smith, Tanaka, Tegmark, Tran, Tully, Ulmer, van den Bergh, van der Wel, van Dokkum, Woods, Woods, Yang, York, Yun-Young Choi   +63 more
core   +1 more source

Deep Neutral Hydrogen Observations of the Early-type Galaxy NGC 2768: Collided by a Newly Discovered Satellite Galaxy?

The Astrophysical Journal
We present the results of a deep neutral hydrogen (H i ) observation of the early-type galaxy NGC 2768 using the Five-hundred-meter Aperture Spherical radio Telescope (FAST).
Nai-Ping Yu, Ming Zhu, Jin-Long Xu, Chuan-Peng Zhang, Xiao-Lan Liu, Peng Jiang   +5 more
doaj   +1 more source

A Comprehensive Perturbative Formalism for Phase Mixing in Perturbed Disks. II. Phase Spirals in an Inhomogeneous Disk Galaxy with a Nonresponsive Dark Matter Halo

The Astrophysical Journal, 2023
We develop a linear perturbative formalism to compute the response of an inhomogeneous stellar disk embedded in a nonresponsive dark matter (DM) halo to various perturbations like bars, spiral arms, and encounters with satellite galaxies.
Uddipan Banik, Frank C. van den Bosch, Martin D. Weinberg   +2 more
doaj   +1 more source

Galactic PeV Neutrinos

, 2013
IceCube experiment has detected two neutrinos with energies beween 1-10 PeV. They might have originated from Galactic or extragalactic sources of cosmic rays.
Gupta, Nayantara
core   +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   +2 more sources

Triazine‐Trione Thermosets with High Processability for Scaffold Applications in Bone Tissue Engineering

Advanced Healthcare Materials, EarlyView.
Novel photo‐clickable triazine‐trione thermosets can be shaped and cured under mild conditions, including room and physiological temperatures. These materials are biocompatible and support osteogenic differentiation of bone marrow–derived mesenchymal stem cells on their surface.
Åshild Johansen, Shuntaro Yamada, Daniel J. Hutchinson, Mohammed A. Yassin, Samih Mohamed‐Ahmed, Cecilie Gjerde, Michael Malkoch, Kamal Mustafa   +7 more
wiley   +1 more source

The Effect of Galaxy Interactions on Starbursts in Milky Way-mass Galaxies in FIRE Simulations

The Astrophysical Journal
Simulations and observations suggest that galaxy interactions may enhance the star formation rate (SFR) in merging galaxies. One proposed mechanism is the torque exerted on the gas and stars in the larger galaxy by the smaller galaxy.
Fei Li, Mubdi Rahman, Norman Murray, Dušan Kereš, Andrew Wetzel, Claude-André Faucher-Giguère, Philip F. Hopkins, Jorge Moreno   +7 more
doaj   +1 more source

Tidal Effects in Clusters of Galaxies [PDF]

, 1999
High-redshift clusters of galaxies show an over-abundance of spirals by a factor of 2-3, and the corresponding under-abundance of S0 galaxies, relative to the nearby clusters.
Eke V. R., Haynes M. P., Kochanski G. P., Oleg Y. Gnedin, Seguin P., White S. D. M.   +5 more
core   +5 more sources

Bar-spheroid interaction in galaxies

The Astrophysical Journal, 1992
The secular evolution of barred galaxies is explored using N-body simulation and linear analysis. In particular, we examine the interaction between bars and spheroidal components of galaxies. According to our calculations, this interaction drives secular transfer of angular momentum from bars to spheroids, primarily through resonant coupling.
Hernquist, Lars, Weinberg, Martin D.
openaire   +2 more sources