Results 31 to 40 of about 8,445,656 (161)

Black hole masses and starbursts in X-shaped radio sources [PDF]

, 2011
It has been suggested that the X-shaped morphology observed in some radio sources can reflect either a recent merger of two supermassive black holes (SMBHs) or the presence of a second active black hole in the galactic nucleus. These scenarios are tested
Jonathan Francisco León Tavares, Vahram Chavushyan   +1 more
core  

FIRST Winged and X-shaped Radio Source Candidates: II. New Redshifts [PDF]

, 2008
We report optical spectroscopic observations of X-shaped radio sources with the Hobby-Eberly Telescope and Multiple-Mirror Telescope, focused on the sample of candidates from the FIRST survey presented in a previous paper.
Landt, Hermine, Kleijn, Gijs Verdoes, Cheung, C. C., Healey, Stephen E., Jordán, A., Cheung, C.C., Jordán Colzani, Andrés Cristóbal, Jordán, Andrés   +7 more
core   +1 more source

X-ray synchrotron emission from the oblique shock in the jet of the powerful radio galaxy 3C 346 [PDF]

, 2005
We report the first detection, with Chandra, of X-ray emission from the jet of the powerful narrow-line radio galaxy 3C 346. X-rays are detected from the bright radio and optical knot at which the jet apparently bends by approximately 70°.
Worrall, DM, Birkinshaw, M, Birkinshaw, M., Worrall, D. M.   +3 more
core   +1 more source

Principal Component‐Based Classification of Blazar Candidates of Uncertain Type in the 4FGL/LAT

Astronomische Nachrichten, EarlyView.
ABSTRACT We adopted principal component analysis (PCA), linear discriminant analysis (LDA), and support vector machines (SVM), to study classification for a sample of 2708 Fermi blazars: 1142 BL Lac objects (BLLs), 759 flat spectrum radio quasars (FSRQs), and 807 blazar candidates of uncertain type (BCUs).
Wen‐Xin Yang, Guo‐Hai Chen, Jing‐Tian Zhu, Hong‐Guang Wang, Denis Bastieri, Xu‐Hong Ye, Jing‐Chao Liang, De‐Xiang Wu, Jiang‐He Yang, Anton A. Strigachev, Rumen S. Bachev, Jun‐Jie Feng, Yi Liu, Jun‐Hui Fan   +13 more
wiley   +1 more source

Simulating Radio Synchrotron Morphology, Spectra, and Polarization of Cosmic Ray Driven Galactic Winds

The Astrophysical Journal
The formation of galaxies is significantly influenced by galactic winds, possibly driven by cosmic rays due to their long cooling times and better coupling to plasma compared to radiation.
H.-H. Sandy Chiu, Mateusz Ruszkowski, Timon Thomas, Maria Werhahn, Christoph Pfrommer   +4 more
doaj   +1 more source

EBHIS Local Volume Galaxy Hi Survey (LVGHIS)

Astronomische Nachrichten, EarlyView.
ABSTRACT Here, we present the “Local Volume Galaxy Hi Survey” (LVGHIS). It is based on the first data release of the Milky Way portion of the Effelsberg Bonn Hi‐Survey (EBHIS). We homogeneously measured the mass and dynamics of the local volume galaxies within the radial velocity limit of |vLSR|≤600kms−1$$ \mid {v}_{\mathrm{LSR}}\mid \le 600\kern0.6em \
V. A. Schulz, J. Kerp, A. C. Schröder, B. Winkel   +3 more
wiley   +1 more source

Giant metrewave radio telescope observations of X-shaped radio sources

, 2007
We present results from a study of X-shaped sources based on observations using the Giant Metrewave Radio Telescope (GMRT). These observations were motivated by our low-frequency study of 3C 223.1, an X-shaped radio source, which showed that the wings ...
Pramesh Rao, A., Vir Lal, Dharam
core   +1 more source

NGC 326: X-shaped no more [PDF]

, 2019
We present new 144-MHz LOFAR observations of the prototypical ‘X-shaped’ radio galaxy NGC 326, which show that the formerly known wings of the radio lobes extend smoothly into a large-scale, complex radio structure.
Gurkan Uygun, Gulay, Tasse, C., Croston, J H, Röttgering, H, Morganti, R., Shimwell, T.W., Hardcastle, M, Gürkan, G., Croston, J, Weeren, R. J. van, Röttgering, H J A, Röttgering, H. J. A., van Weeren, R. J., Shimwell, T W, Murgia, M., Röttgering, H.J.A., Murgia, M, Van weeren, R, Weeren, R.J. van, Williams, W.L., Hardcastle, M.J., Hardcastle, M. J., Morganti, R, Hardcastle, M J, Croston, J. H., MURGIA, MATTEO, Williams, W L, Croston, J.H., Shimwell, T. W., Tasse, C, Shimwell, T, van Weeren, R J, Williams, W, Gürkan, G, Williams, W. L.   +34 more
core   +1 more source

A Deep Chandra View of A2597: Bubbles, Shocks, Cold Fueling, and a Plasma Depletion Layer

The Astrophysical Journal
To examine how active galactic nucleus (AGN) feedback shapes the intracluster medium (ICM) and fuels black hole accretion in the cool-core galaxy cluster A2597, we present deep (∼600 ks) Chandra X-ray observations complemented by archival GMRT radio and ...
Osase Omoruyi, Grant Tremblay, Stefi A. Baum, Tracy E. Clarke, Pratik Dabhade, Andrew Fabian, Massimo Gaspari, Sanna Gulati, Preeti Kharb, Maxim Markevitch, Paul Nulsen, Christopher P. O’Dea, Scott Randall, Somak Raychaudhury, Sravani Vaddi, Alexey Vikhlinin, John Zuhone   +16 more
doaj   +1 more source

Artificial intelligence‐driven bioinformatics: From analytical pipelines to model‐centered biological discovery

iMetaOmics, EarlyView.
AI‐driven bioinformatics is best viewed as an emerging model‐centered discovery framework in which learned representations increasingly support prediction, intervention design, and workflow orchestration, while classical pipelines remain essential for validation and reproducibility.
Songming Chen, Wei Zhang, Luohuan Dai, Zujian Xiong, Sicen Lai, Haitao Xu, Jia Gu, Kang Peng, Nian Jiang, Hongwei Liu, Xuejun Li   +10 more
wiley   +1 more source