Results 91 to 100 of about 230,790 (340)

Metallicity and Star Formation Activities of the Interacting System Arp 86 from Observation with MOS on Xinglong 2.16m Telescope

, 2014
We present an analysis of the metallicity and star formation activities of HII regions in the interacting system Arp 86, based on the first scientific observation of the multi-object spectroscopy on the 2.16m Telescope at Xinglong Observatory.
Huang, Lei, Jia, Jun-Jun, Lam, Man-I, Li, Hong-Bin, Wu, Hong, Zhou, Zhi-Min, Zhou, Zhi-Zhong, Zhu, Yi-Nan   +7 more
core   +1 more source

Back to the Green Valley: How to Rejuvenate an S0 Galaxy through Minor Mergers

Galaxies, 2015
About half of the S0 galaxies in the nearby Universe show signatures of recent or ongoing star formation. Whether these S0 galaxies were rejuvenated by the accretion of fresh gas is still controversial.
Michela Mapelli
doaj   +1 more source

Observational Evidence for an Age Dependence of Halo Bias

, 2006
We study the dependence of the cross-correlation between galaxies and galaxy groups on group properties. Confirming previous results, we find that the correlation strength is stronger for more massive groups, in good agreement with the expected mass ...
Frank C. van den Bosch, Gao L., H. J. Mo, Mo H. J., Weinmann S. M., Xiaohu Yang   +5 more
core   +2 more sources

The imprint of bursty star formation on alpha-element abundance patterns in Milky Way-like galaxies [PDF]

, 2023
Hanna Parul, Jeremy Bailin, Andrew Wetzel, Alexander B. Gurvich, Claude‐André Faucher‐Giguère, Zachary Hafen, Jonathan Stern, Owain Snaith   +7 more
openalex   +1 more source

The Evolution of Half-mass Radii and Color Gradients for Young and Old Quiescent Galaxies at 0.5 < z < 3 with JWST/PRIMER

The Astrophysical Journal
We present a study of the size growth of the red sequence between 0.5 
Maike Clausen, Ivelina G. Momcheva, Katherine E. Whitaker, Sam E. Cutler, Rachel S. Bezanson, James S. Dunlop, Norman A. Grogin, Anton M. Koekemoer, Derek J. McLeod, Ross J. McLure, Tim B. Miller, Erica J. Nelson, Arjen van der Wel, David A. Wake, Stijn Wuyts   +14 more
doaj   +1 more source

And the winner is: galaxy mass

, 2011
The environment is known to affect the formation and evolution of galaxies considerably best visible through the well-known morphology-density relationship.
A Dressler, A Pasquali, B Rogers, CJ Lintott, D Thomas, D Thomas, D Thomas, DG York, H Kuntschner, IK Baldry, K Schawinski, LAM Tasca, M Cappellari, M Postman, M Sarzi, YJ Peng   +15 more
core   +1 more source

A Comprehensive Study on Galaxies at z~9-16 Found in the Early JWST Data: UV Luminosity Functions and Cosmic Star-Formation History at the Pre-Reionization Epoch [PDF]

, 2022
Yuichi Harikane, Masami Ouchi, Masamune Oguri, Yoshiaki Ono, Kimihiko Nakajima, Yuki Isobe, Hiroya Umeda, Ken Mawatari, Yechi Zhang   +8 more
openalex   +1 more source

Patterns of wild meat and other protein consumption in the periphery of Salonga National Park, Democratic Republic of the Congo

People and Nature, EarlyView.
Abstract In Central Africa, human activities are severely impacting terrestrial and aquatic wildlife, threatening the food security of millions of people. Accordingly, sustainable use of wildlife is crucial for the nutrition and livelihoods of many rural communities in the region.
Zolo Admettons, Mattia Bessone, Josué Ausse Baraka, Josué Engombe Botomia, Espérance Miezi, Bénédicte Nsilu, Jonathan Nkamisha Mukole, Michel Opelele Omeno, Jean Semeki Ngabinzeke, Barbara Fruth   +9 more
wiley   +1 more source

How Do Uncertainties in Galaxy Formation Physics Impact Field-level Galaxy Bias?

The Astrophysical Journal
Our ability to extract cosmological information from galaxy surveys is limited by uncertainties in the galaxy–dark matter halo relationship for a given galaxy population, which are governed by the intricacies of galaxy formation.
Mahlet Shiferaw, Nickolas Kokron, Risa H. Wechsler   +2 more
doaj   +1 more source

The interaction-driven starburst contribution to the cosmic star formation rate density

, 2013
An increasing amount of observational evidence supports the notion that there are two modes of star formation: a quiescent mode in disk-like galaxies, and a starburst mode, which is generally interpreted as driven by merging.
Fiore, Fabrizio, Lamastra, Alessandra, Menci, Nicola, Santini, Paola   +3 more
core   +1 more source