Results 91 to 100 of about 12,566,242 (368)

The local group of galaxies

Astronomy and Astrophysics Review, 1999
To be published in The Astronomy and Astrophysics ...
openaire   +3 more sources

AhR‐Dependent Induction of β‐Defensin 1 in Colonic Epithelial Cells Regulates Cross‐Talk between Gut Microbiota and Immune Response Leading to Attenuation of Colitis

Advanced Science, EarlyView.
This study identifies a key signaling pathway involving the environmental sensor AhR and antimicrobial peptides, such as BD‐1, in the regulation of intestinal homeostasis. It highlights the role of BD‐1 in regulating gut microbiota and the intestinal immune response.
Manikandan Palrasu, Amarnath Marudamuthu, Khadija Kakar, Hamida Hamida, Shruthi Thada, Rohan Gupta, Kiesha Wilson, Taylor Carter, Yin Zhong, Archana Saxena, Xiaoming Yang, Narendra Singh, Philip Brandon Busbee, Jie Li, Monica Garcia‐Buitrago, Prakash Nagarkatti, Mitzi Nagarkatti   +16 more
wiley   +1 more source

The Importance of Gas Starvation in Driving Satellite Quenching in Galaxy Groups at z ~ 0.8

The Astrophysical Journal
We present results from a Keck/DEIMOS survey to study satellite quenching in group environments at z  ~ 0.8 within the Extended Groth Strip (EGS). We target 11 groups in the EGS with extended X-ray emission. We obtain high-quality spectroscopic redshifts
Devontae C. Baxter, Sean P. Fillingham, Alison L. Coil, Michael C. Cooper   +3 more
doaj   +1 more source

The GEEC2 spectroscopic survey of Galaxy groups at 0.8 < z < 1 [PDF]

, 2014
We present the data release of the Gemini-South GMOS spectroscopy in the fields of 11 galaxy groups at $0.8 50$ per cent complete for galaxies within the virial radius, and with stellar mass $M_{\rm star}>10^{10.3}M_\odot$.
M. Balogh, S. McGee, A. Mok, D. Wilman, A. Finoguenov, R. Bower, J. Mulchaey, L. Parker, Masayuki Tanaka Waterloo, Leiden, McMaster, Mpie, Helsinki, Durham, Ociw, Naoj   +15 more
semanticscholar   +1 more source

Using member galaxy luminosities as halo mass proxies of galaxy groups

, 2015
Reliable halo mass estimation for a given galaxy system plays an important role both in cosmology and galaxy formation studies. Here we set out to find the way that can improve the halo mass estimation for those galaxy systems with limited brightest ...
Lu, Yi, Shen, Shiyin, Yang, Xiaohu
core   +1 more source

STUDYING GALAXY FORMATION IN LOOSE GALAXY GROUPS [PDF]

, 2007
4 pages, To appear in the proceedings of the "Island Universes: Structure and Evolution of Disk Galaxies" conference held in Terschelling, Netherlands, July 2005, ed. R. de Jong (Springer: Dordrecht)
Kenneth C. Freeman, Brad K. Gibson, Daniel J. Pisano, Daniel J. Pisano, David G. Barnes, Virginia A. Kilborn, Lister Staveley-Smith   +6 more
openaire   +3 more sources

The 2dF Galaxy Redshift Survey: the clustering of galaxy groups [PDF]

Monthly Notices of the Royal Astronomical Society, 2004
16 pages.
Terry J. Bridges, Peder Norberg, Chris A. Collins, Richard S. Ellis, Matthew Colless, Joss Bland-Hawthorn, Russell D. Cannon, Darren Madgwick, George Efstathiou, Ivan K. Baldry, Simon P. Driver, Carlos S. Frenk, Nelson D. Padilla, Gavin Dalton, Gavin Dalton, Warrick J. Couch, Stephen J. Maddox, Darren J. Croton, Keith Taylor, Vincent R. Eke, Roberto De Propris, Ian Lewis, Carlton M. Baugh, Carole Jackson, Stuart Lumsden, Ofer Lahav, William J. Sutherland, William J. Sutherland, Karl Glazebrook, Bruce A. Peterson, Shaun Cole, John A. Peacock   +31 more
openaire   +8 more sources

Genomic Variation Underpins Genetic Divergence and Differing Salt Resilience in Sesbania bispinosa

Advanced Science, EarlyView.
Sesbania, a leguminous halophyte, thrives in saline soils. Comparative genomics reveals key genomic variations—particularly chromosomal inversions—are identified as contributors to population differentiation and salt resilience. These findings advance the understanding of genomic variation driving evolution and phenotypic differentiation and offer ...
Gai Huang, Xiaofei Wang, Chengli Liu, Kaixuan He, Xiu‐Li Hou, Haofei Luo, Shuaibin Zhang, Changqing You, Yajun Jia, Fuqiang Wang, Xianwei Song, Guodao Liu, Xian Deng, Xiaofeng Cao   +13 more
wiley   +1 more source

Testing Galaxy Formation Models with the Stellar Mass–Halo Mass Relations for Star-forming and Quiescent Galaxies

The Astrophysical Journal
The tight relationship between the stellar mass and halo mass of galaxies is one of the most fundamental scaling relations in galaxy formation and evolution. It has become a critical constraint for galaxy formation models.
Kai Wang, Yingjie Peng
doaj   +1 more source

Ultimate age-dating method for galaxy groups; clues from the Millennium Simulations [PDF]

, 2014
There have been a number of studies dedicated to identification of fossil galaxy groups, arguably groups with a relatively old formation epoch. Most of such studies identify fossil groups, primarily based on a large luminosity gap, which is the magnitude
Mojtaba Raouf, H. Khosroshahi, T. Ponman, A. Dariush, A. Molaeinezhad, S. Tavasoli   +5 more
semanticscholar   +1 more source