Results 61 to 70 of about 53,883 (266)

The size evolution of elliptical galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2014
11 pages, 8 figures, 1 table, submitted to ...
Xie, L., Guo, Q., Cooper, A. P., Frenk, C. S., Li, R., Gao, L.   +5 more
openaire   +3 more sources

Improving Cycle Life and Capacity Retention in PVMPO‖Li Dual‐Ion Lithium‐Organic Batteries Using an EC‐Free and FEC Additive Containing Electrolyte

Small Methods, EarlyView.
The major bottleneck of PVMPO‐based positive electrodes is electrode degradation during extended cycling with EC‐containing electrolytes. This issue is mitigated by using EC‐free electrolytes with FEC additives, which exhibit reduced interfacial resistance, fewer surface cracks, improved capacity retention, and suppressed electrode degradation, thereby
Sathiya Priya Panjalingam, Somayeh Ahadi, Jakob Michael Hesper, Uta Rodehorst, Sascha Nowak, Birgit Esser, Martin Winter, Peter Bieker   +7 more
wiley   +1 more source

Where Have All the Little Red Dots Gone? Supermassive Black Hole Binary Dynamics and Its Impact on Galaxy Properties

The Astrophysical Journal Letters
Recent James Webb Space Telescope observations have revealed a peculiar class of galaxies at redshifts z  ≳ 6, characterized by extremely high central stellar densities and overmassive central supermassive black holes (SMBHs), “little red dots” (LRDs). A
Fazeel Mahmood Khan, Benjamin L. Davis, Andrea Valerio Macciò, Kelly Holley-Bockelmann   +3 more
doaj   +1 more source

Giant Halos in Dwarf Irregular Galaxies vs. Dwarf Elliptical Galaxies

, 2005
We present a discovery of a giant stellar halo in NGC 6822, a dwarf irregular galaxy in the Local Group. This halo is mostly made of old red giants, showing striking features: 1) it is several times larger than the main body of the galaxy seen in the ...
Hwang, Narae, Lee, Myung Gyoon
core   +1 more source

Weak Homology of Bright Elliptical Galaxies [PDF]

, 2003
Studies of the Fundamental Plane of early-type galaxies, from small to intermediate redshifts, are often carried out under the guiding principle that the Fundamental Plane reflects the existence of an underlying mass-luminosity relation for such galaxies,
Bertin, Giuseppe
core   +3 more sources

Kinematics of diffuse elliptical galaxies

Astrophysics and Space Science, 2003
To be published in "The Evolution of Galaxies. III. From Simple Approaches to Self-Consistent Models", G.
Prugniel, Philippe, Simien, Francois
openaire   +2 more sources

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Galactic Density and Evolution Based on the Virial Theorem, Energy Minimization, and Conservation of Angular Momentum

Galaxies, 2018
Spiral galaxies are spinning, internally densified objects. The Virial Theorem explains galactic rotation curves via its linkage of the rotation rate to the gravitational self-potential (Ug) and the moment of inertia of oblate spheroids.
Robert E. Criss, Anne M. Hofmeister
doaj   +1 more source

The Central Dark Matter Fraction of Massive Early-Type Galaxies

Frontiers in Astronomy and Space Sciences, 2022
Dark matter (DM) is predicted to be the dominant mass component in galaxies. In the central region of early-type galaxies it is expected to account for a large amount of the total mass, although the stellar mass should still represent the majority of the
C. Tortora, N. R. Napolitano, N. R. Napolitano   +2 more
doaj   +1 more source

Cold gas in elliptical galaxies [PDF]

, 2001
We explore the evolution of the cold gas (molecular and neutral hydrogen) of elliptical galaxies and merger remnants ordered into a time sequence on the basis of spectroscopic age estimates.
A. Caulton, A. Georgakakis, A.I. Terlevich, A.M. Hopkins, Andreani, Arnault, Becker, Bottinelli, Bottinelli, Braine, Bregman, Brodie, Bruzual, Burstein, Burstein, Casoli, Chamaraux, Condon, Condon, Condon, Crabtree, Duncan A. Forbes, Elfhag, Eskridge, Faber, Forbes, Forbes, Garcia, Georgakakis, Heckman, Hibbard, Hibbard, Hibbard, Ho, Hopkins, Huchtmeier, Huchtmeier, Huchtmeier, Huchtmeier, Huchtmeier, Hummel, Isobe, Keel, Knapp, LaValley, Lees, Maloney, Martin, McNamara, Miller, O'Sullivan, Roberts, Sage, Sanders, Sanders, Sanders, Sansom, Schiminovich, Schweizer, Sofue, Solomon, T. Wiklind, Toomre, Tully, van den Bergh, Veron-Cetty, Whitmore, Wiklind, Worthey, Wrobel, Young, Yun, Zepf   +72 more
core   +2 more sources