Results 91 to 100 of about 49,316 (344)

AGNs and galaxy interactions

, 2007
We perform a statistical analysis of AGN host characteristics and nuclear activity for AGNs in pairs and without companions. Our study concerns a sample of AGNs derived from the SDSS-DR4 data by Kauffmann et al (2003) and pair galaxies obtained from the same data set by Alonso et al. (2006).
Alonso, M. Sol, Lambas, Diego G., Tissera, Patricia, Coldwell, Georgina   +3 more
openaire   +2 more sources

Germanium‐Based Mid‐Infrared Integrated Photonics

Laser &Photonics Reviews, EarlyView.
The mid‐infrared (mid‐IR) spectral range is a part of the electromagnetic spectrum in which most of the molecules have vibrational and rotational resonances. Photonics integration in this wavelength range have thus seen a burst of interest in the recent years, mainly driven by applications related with the detection of chemical and biological ...
Delphine Marris‐Morini, Goran Z. Mashanovich, Milos Nedeljkovic, Carlos Alonso‐Ramos, Laurent Vivien, Jacopo Frigerio, Giovanni Isella   +6 more
wiley   +1 more source

A Fast Radio Burst in a Compact Galaxy Group at z ∼ 1

The Astrophysical Journal Letters
FRB 20220610A is a high-redshift fast radio burst (FRB) that has not been observed to repeat. Here, we present rest-frame UV and optical Hubble Space Telescope observations of the field of FRB 20220610A. The imaging reveals seven extended sources, one of
Alexa C. Gordon, Wen-fai Fong, Sunil Simha, Yuxin Dong, Charles D. Kilpatrick, Adam T. Deller, Stuart D. Ryder, Tarraneh Eftekhari, Marcin Glowacki, Lachlan Marnoch, August R. Muller, Anya E. Nugent, Antonella Palmese, J. Xavier Prochaska, Marc Rafelski, Ryan M. Shannon, Nicolas Tejos   +16 more
doaj   +1 more source

Fitting a self-interacting dark matter model to data ranging from satellite galaxies to galaxy clusters [PDF]

, 2023
Sudhakantha Girmohanta, Robert Shrock
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

Galaxy Protoclusters as Drivers of Cosmic Reionization: I. Bubble Overlap at Redshift z ∼ 7 in LAGER-z7OD1

The Astrophysical Journal
Since the launch of JWST, the sample size of reionization-era Ly α emitters (LAEs) has been steadily growing; yet inferences about the neutral hydrogen fraction in the intergalactic medium exhibit increasing variance at redshift z ≈ 7, possibly ...
Crystal L. Martin, Weida Hu, Isak G. B. Wold, Andreas Faisst, Cristóbal Moya-Sierralta, Sangeeta Malhotra, James E. Rhoads, Luis Felipe Barrientos, Yuichi Harikane, Leopoldo Infante, Anton M. Koekemoer, Jorge Gonzalez Lopez, Masami Ouchi, Junyan Xu, Jiayang Yang, L. Y. Aaron Yung, John R. Weaver, Henry McCracken, Zhenya Zheng, Junxian Wang   +19 more
doaj   +1 more source

Large Distance Modification of Newtonian Potential and Structure Formation in Universe

, 2017
In this paper, we study the effects of super-light brane world perturbative modes on structure formation in our universe. As these modes modify the large distance behavior of Newtonian potential, they effect the clustering of a system of galaxies. So, we
Fei Ma (113764), Guanyun Wei (2742748), Jean Thiery (5590757), Jun Zhang (48506), Lele Wu (5590748), Liming Chen (113761), Weiguang Liu (5590751), Xue Gong (144222), Yan Liu (25061), Yuzhi Wang (690944), Zhifang Ma (1547305)   +10 more
core   +4 more sources

Self-Interacting Dark Matter and the Origin of Ultradiffuse Galaxies NGC1052-DF2 and -DF4 [PDF]

, 2020
Daneng Yang, Hai-Bo Yu, Haipeng An
openalex   +1 more source

Discovery of Giant Bubbles in the Hot Gaseous Halo of the Massive Disk Galaxy NGC 6286

The Astrophysical Journal
Based on archival Chandra X-ray observation, optical integral-field spectroscopic data, and radio interferometric data, we report the discovery of a pair of giant bubbles (with a projected radius ∼5 kpc) of ionized gas emerging from a highly inclined ...
Lin He, Zhiyuan Li, Zongnan Li, Rubén García-Benito, Yuanqi Liu, Meicun Hou   +5 more
doaj   +1 more source

Arp 70: an interacting galaxy with extreme outflows [PDF]

, 2020
A. Camps-Fariña, J. E. Beckman, Joan Font, Ignacio del Moral-Castro, S. F. Sánchez, Alejandro S. Borlaff   +5 more
openalex   +1 more source