Results 31 to 40 of about 141,201 (236)

Do Bars Trigger Activity in Galactic Nuclei?

, 2012
We investigate the connection between the presence of bars and AGN activity, using a volume-limited sample of $\sim$9,000 late-type galaxies with axis ratio $b/a>0.6$ and $M_{r} < -19.5+5{\rm log}h$ at low redshift ($0.02\le z\lesssim 0.055$), selected ...
Hwang, Ho Seong, Lee, Gwang-Ho, Lee, Jong Chul, Lee, Jong Hwan, Lee, Myung Gyoon, Sohn, Jubee, Woo, Jong-Hak   +6 more
core   +1 more source

Are There Higher Electron Densities in Narrow Emission Line Regions of Type-1 AGNs than in Type-2 AGNs?

The Astrophysical Journal
In the manuscript, we check properties of electron densities n _e traced by flux ratio R _sii of [S ii ] λ 6716 Å to [S ii ] λ 6731 Å in narrow emission line regions (NLRs) between Type-1 active galactic nucleus (AGN) and Type-2 AGN in SDSS Data Release ...
XueGuang Zhang
doaj   +1 more source

The impact of cosmic voids on AGN activity

Astronomy & Astrophysics
Aims. Our goal is to carry out a comparative study of the properties of central galaxies hosting active galactic nuclei (AGN) in cosmic voids and their surrounding structures (i.e.
Rouse Benedict L., Tissera Patricia B., Rosas-Guevara Yetli, Lagos Claudia del P.   +3 more
doaj   +1 more source

Broadband multi-wavelength study of LHAASO detected AGN [PDF]

, 2023
Ze-Rui Wang, Rui Xue, Dingrong Xiong, Hai-Qin Wang, Luming Sun, Fang‐Kun Peng, Mao, Jirong   +6 more
openalex   +1 more source

Archivos e investigación. Reflexiones en torno a las posibilidades de indagación de las relaciones de género en los archivos

Anuario Digital (Escuela de Historia. Facultad de Humanidades y Artes. Universidad Nacional de Rosario), 2011

Yamila BALBUENA, Mariana NAZAR
doaj  

Different Dependence of Narrow Hα Line Luminosity on Optical Continuum Luminosity between Star-forming Galaxies and Type 2 Active Galactic Nuclei: Globally Negative AGN Feedback in Local Type 2 AGN?

The Astrophysical Journal
In this manuscript, clues are provided to support globally negative active galactic nuclei (AGN) feedback on star formation in the host galaxies of the local low-redshift Sloan Digital Sky Survey (SDSS) Type 2 AGN, based on the different dependence of ...
XueGuang Zhang
doaj   +1 more source

The VLA Survey of the Chandra Deep Field South. V. Evolution and Luminosity Functions of sub-mJy radio sources and the issue of radio emission in radio-quiet AGN

, 2011
We present the evolutionary properties and luminosity functions of the radio sources belonging to the Chandra Deep Field South VLA survey, which reaches a flux density limit at 1.4 GHz of 43 microJy at the field center and redshift ~5, and which includes
Kellermann, K. I., Mainieri, V., Miller, N., Padovani, P., Rosati, P., Tozzi, P.   +5 more
core   +1 more source

Effect of Ultrafine Powderization and Solid Dispersion Formation via Hot-Melt Extrusion on Antioxidant, Anti-Inflammatory, and the Human Kv1.3 Channel Inhibitory Activities of Angelica gigas Nakai

Bioinorganic Chemistry and Applications, 2020
Angelica gigas Nakai (AGN) was first processed by ultrafine grinding technology and hot-melt extrusion (HME). The potential antioxidant and anti-inflammatory activities of AGN with a different process were compared, and the effect on the human Kv1.3 ...
Yunyao Jiang, Jingpei Piao, Nan Liu, Jincai Hou, Jianxun Liu, Weicheng Hu   +5 more
doaj   +1 more source

PRIMUS: The relationship between Star formation and AGN accretion

, 2015
We study the evidence for a connection between active galactic nuclei (AGN) fueling and star formation by investigating the relationship between the X-ray luminosities of AGN and the star formation rates (SFRs) of their host galaxies.
Aird, James, Azadi, Mojegan, Blanton, Michael, Coil, Alison, Cool, Richard, Eisenstein, Daniel, Mendez, Alexander, Moustakas, John, Wong, Kenneth, Zhu, Guangtun   +9 more
core   +2 more sources

Spitzer-IRS high resolution spectroscopic survey of the 12 micron Seyfert galaxies: II. Results for the Complete Dataset

, 2009
We present the Spitzer 10-37um IRS high resolution (R~600) spectroscopic survey of the Seyfert galaxies of the 12 micron Galaxy Sample. The new spectra of 61 galaxies, with those already published, gives us a total of 91 12micron Seyfert galaxies ...
Antonucci, Armus, Bernard-Salas, Bird, Buchanan, Cardamone, Coziol, Dale, Dasyra, de Grijp, Deo, Dudik, Dudik, Durret, Genzel, Giovanni Fazio, Gorjian, Greene, Higdon, Houck, Hunt, Kollatschny, Krongold, Levenson, Luigi Spinoglio, Lutz, Malizia, Malkan, Matthew A. Malkan, Meléndez, Meléndez, Moran, Nelson, Osterbrock, Pence, Schulz, Shu, Silvia Tommasin, Spinoglio, Storchi-Bergmann, Terashima, Thornley, Tommasin, Tran, Tran, Veilleux, Weedman, Werner, Wu, Zhang   +49 more
core   +1 more source