Results 141 to 150 of about 806,786 (394)

3D-HST+CANDELS: THE EVOLUTION OF THE GALAXY SIZE–MASS DISTRIBUTION SINCE z = 3 [PDF]

, 2014
Spectroscopic+photometric redshifts, stellar mass estimates, and rest-frame colors from the 3D-HST survey are combined with structural parameter measurements from CANDELS imaging to determine the galaxy size–mass distribution over the redshift range 0 ...
A. V. D. Wel, M. Franx, P. V. Dokkum, R. Skelton, I. Momcheva, K. Whitaker, G. Brammer, E. Bell, H. Rix, S. Wuyts, H. Ferguson, B. Holden, G. Barro, A. Koekemoer, Yu-Yen Chang, E. McGrath, B. Haussler, B. Haussler, A. Dekel, P. Behroozi, M. Fumagalli, J. Leja, B. Lundgren, M. Maseda, E. Nelson, D. Wake, D. Wake, S. Patel, I. Labbé, S. Faber, N. Grogin, D. Kocevski   +31 more
semanticscholar   +1 more source

JWST Imaging of the Closest Globular Clusters—VI. The Lowest‐Mass Objects in M 4 and the Galactic Bulge

Astronomische Nachrichten, EarlyView.
ABSTRACT We present James Webb Space Telescope observations of M 4—the closest globular cluster—that probe the lower Main Sequence down to the hydrogen‐burning limit. The unveiled stellar sequence reaches much fainter luminosities than previously possible, revealing a few extremely red objects that are consistent with brown dwarfs as cool as Teff∼1000K$
L. R. Bedin, R. Gerasimov, A. Calamida, M. Libralato, M. Scalco, D. Nardiello, M. Griggio, D. Apai, J. Anderson, A. Bellini, A. Burgasser   +10 more
wiley   +1 more source

MASS AND ENVIRONMENT AS DRIVERS OF GALAXY EVOLUTION IN SDSS AND zCOSMOS AND THE ORIGIN OF THE SCHECHTER FUNCTION [PDF]

, 2010
We explore the simple inter-relationships between mass, star formation rate, and environment in the SDSS, zCOSMOS, and other deep surveys. We take a purely empirical approach in identifying those features of galaxy evolution that are demanded by the data
Yingjie Peng, S. Lilly, K. Kovač, M. Bolzonella, L. Pozzetti, A. Renzini, G. Zamorani, O. Ilbert, C. Knobel, A. Iovino, C. Maier, O. Cucciati, L. Tasca, C. Carollo, J. Silverman, Pawel Kampczyk, L. de Ravel, D. Sanders, N. Scoville, T. Contini, V. Mainieri, M. Scodeggio, J. Kneib, O. Le Fèvre, S. Bardelli, A. Bongiorno, K. Caputi, G. Coppa, S. de la Torre, P. Franzetti, B. Garilli, F. Lamareille, J. Le Borgne, V. Le Brun, M. Mignoli, E. P. Montero, R. Pelló, E. Ricciardelli, Masayuki Tanaka, L. Tresse, D. Vergani, N. Welikala, E. Zucca, P. Oesch, U. Abbas, L. Barnes, R. Bordoloi, D. Bottini, A. Cappi, P. Cassata, A. Cimatti, M. Fumana, G. Hasinger, A. Koekemoer, A. Leauthaud, D. Maccagni, C. Marinoni, H. McCracken, P. Memeo, B. Meneux, P. Nair, C. Porciani, V. Presotto, R. Scaramella   +63 more
semanticscholar   +1 more source

Leading Regenerative Transformation: Cognitive Frame Characteristics Shaping Leaders' Approaches to Organizational Development

Business Strategy and the Environment, EarlyView.
ABSTRACT As the urgency to address global crises such as climate change and inequality intensifies, the concept of regenerative development has emerged as a transformative approach going beyond sustainability to actively restore and enhance both ecological and social systems.
Leonie Paul, Juha Väätänen, Hardik Bhimani, Anne‐Laure Mention   +3 more
wiley   +1 more source

Stochastic Biasing and Galaxy-Mass Density Relation in the Weakly Non-linear Regime

, 1999
It is believed that the biasing of the galaxies plays an important role for understanding the large-scale structure of the universe. In general, the biasing of galaxy formation could be stochastic.
Chodorowski M. J., Mo H. J., Mo H. J.
core   +2 more sources

RECONCILING DWARF GALAXIES WITH ΛCDM COSMOLOGY: SIMULATING A REALISTIC POPULATION OF SATELLITES AROUND A MILKY WAY–MASS GALAXY [PDF]

, 2016
Low-mass “dwarf” galaxies represent the most significant challenges to the cold dark matter (CDM) model of cosmological structure formation. Because these faint galaxies are (best) observed within the Local Group (LG) of the Milky Way (MW) and Andromeda (
A. Wetzel, P. Hopkins, Ji-hoon Kim, C. Faucher-Giguére, D. Keres̆, E. Quataert   +5 more
semanticscholar   +1 more source

Origins And Evolution Of Galactic Type Diversity

International Scholastic Journal of Science, 2016
A study is presented into the origins of galactic type diversity and galaxy evolution through investigating the relationship between representative galaxy color index u-v and redshifts.
Kosuke Kanehisa
doaj  

A Bayesian Approach to the Vertical Structure of the Disk of the Milky Way

The Open Journal of Astrophysics, 2020
This work investigates the vertical profile of the stars in the disk of the Milky Way. The models investigated are of the form sech2/n(nz/(2H)) where, setting α = 2/n, the three functions of the sequence α= 0, 1, 2 correspond to exponential, sech, and ...
Phillip S. Dobbie , Stephen J. Warren
doaj   +1 more source

Towards an understanding of third-order galaxy-galaxy lensing

, 2012
Third-order galaxy-galaxy lensing (G3L) is a next generation galaxy-galaxy lensing technique that either measures the excess shear about lens pairs or the excess shear-shear correlations about lenses.
Bartelmann, Bartelmann, Bower, Brainerd, Cooray, D. Kübler, De Lucia, Fischer, Griffiths, Guzik, Hoekstra, Hoekstra, Johnston, Kaiser, Kleinheinrich, Mandelbaum, Mandelbaum, Mandelbaum, P. Schneider, P. Simon, Parker, Pen, Scherrer, Schneider, Schrabback, Seljak, Sheldon, Simon, Simon, Tyson, van Uitert, Weinberg   +31 more
core   +1 more source

Physical Models of Galaxy Formation in a Cosmological Framework [PDF]

, 2014
Modeling galaxy formation in a cosmological context presents one of the greatest challenges in astrophysics today due to the vast range of scales and numerous physical processes involved.
R. Somerville, R. Dav'e
semanticscholar   +1 more source