Results 131 to 140 of about 679,095 (339)

Multiwavelength Study of Massive Galaxies at z~2. I. Star Formation and Galaxy Growth [PDF]

, 2007
Examining a sample of massive galaxies at 1.4 < z < 2.5 with KVega < 22 from GOODS, we compare photometry from Spitzer at mid- and far-IR to submillimeter, radio, and rest-frame UV wavelengths, to test the agreement between different tracers of star ...
E. Daddi, M. Dickinson, G. Morrison, R. Chary, A. Cimatti, D. Elbaz, D. Frayer, A. Renzini, A. Pope, D. Alexander, F. Bauer, M. Giavalisco, M. Huynh, J. Kurk, M. Mignoli   +14 more
semanticscholar   +1 more source

Subterranean environments contribute to three‐quarters of classified ecosystem services

Biological Reviews, EarlyView.
ABSTRACT Beneath the Earth's surface lies a network of interconnected caves, voids, and systems of fissures forming in rocks of sedimentary, igneous, or metamorphic origin. Although largely inaccessible to humans, this hidden realm supports and regulates services critical to ecological health and human well‐being.
Stefano Mammola, David Brankovits, Tiziana Di Lorenzo, Isabel R. Amorim, Raluca Ioana Bancila, Adrià Bellvert, Enrico Bernard, Anna Blomberg, Paulo A.V. Borges, Martina Cappelletti, Rodrigo Lopes Ferreira, Rosalina Gabriel, Diana M. P. Galassi, Laura Garzoli, Vasilis Gerovasileiou, Grant C. Hose, Kathryn L. Korbel, Simone Martino, Ana Z Miller, Nataša Mori, Veronica Nanni, Giuseppe Nicolosi, Mattia Saccò, Troy S. Sakihara, Marconi Souza Silva, Anne E. Tamalavage, Maja Zagmajster, Efraín Chávez, Christian Griebler, Pedro Cardoso, Alejandro Martínez   +30 more
wiley   +1 more source

Environmental dependence of stellar velocity dispersion in the Main galaxy sample of SDSS DR10

Open Physics, 2014
The aim of this work is to examine the environmental dependence of stellar velocity dispersion in local galaxies. In studies that likely suffer from the radial selection effect, one has a preference for the use of volumelimited samples.
Deng Xin-Fa
doaj   +1 more source

Unveiling the Origin of the Fermi Bubbles

Galaxies, 2018
The Fermi bubbles, two giant structures above and below the Galactic center (GC), are among the most important discoveries of the Fermi Gamma-ray Space Telescope.
H.-Y. Karen Yang, Mateusz Ruszkowski, Ellen G. Zweibel   +2 more
doaj   +1 more source

Detection of a Star Forming Galaxy in the Center of a Low-Mass Galaxy Cluster

, 2018
Brightest Cluster Galaxies (BCGs) residing in the centers of galaxy clusters are typically quenched giant ellipticals. A recent study hinted that star-forming galaxies with large disks, so-called superluminous spirals and lenticulars, are the BCGs of a ...
Andrade-Santos, Felipe, Bogdan, Akos, Forman, William R., Jones, Christine, Kovacs, Orsolya E., Kraft, Ralph P., Lovisari, Lorenzo   +6 more
core   +1 more source

Galaxy Zoo: morphologies derived from visual inspection of galaxies from the Sloan Digital Sky Survey [PDF]

, 2008
In order to understand the formation and subsequent evolution of galaxies one must first distinguish between the two main morphological classes of massive systems: spirals and early-type systems.
C. Lintott, K. Schawinski, A. Slosar, K. Land, S. Bamford, D. Thomas, M. Raddick, R. Nichol, A. Szalay, D. Andreescu, P. Murray, J. V. D. Berg   +11 more
semanticscholar   +1 more source

Chlorinated Paracyclophanes: Composition Analysis and Direct Metal‐Free Alkylation with n‐BuLi

European Journal of Organic Chemistry, EarlyView.
A transition‐metal‐free alkylation of pseudo‐para dichloro[2.2]paracyclophane (Cl2‐PCP) is reported, utilizing the purified pseudo‐para isomer and n‐butyllithium (BuLi). Optimization with the chelating agent TMEDA and refluxing n‐heptane significantly boosted selectivity and reaction rate, providing the dialkylated product in 22% isolated yield.
Davide Frigatti, Alessandro Scarso, Stefan Bräse, Fabrizio Fabris   +3 more
wiley   +1 more source

UV Excess Galaxies: Wolf-Rayet Galaxies

The Astrophysical Journal, 2000
4 pages, including 4 figures. Uses AASTeX and emulateapj5.sty.
Brown, Warren R., Kenyon, Scott J., Geller, Margaret J., Fabricant, Daniel G.   +3 more
openaire   +2 more sources

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

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