Results 71 to 80 of about 7,156,946 (172)

Blackbody Quasar and Radio Source (BBQSORS): A Candidate of Transitional Little Red Dots with a T ∼ 104 K Blackbody Spectrum

The Astrophysical Journal Letters
JWST surveys have identified a new class of active galactic nuclei (AGNs) called little red dots (LRDs). Their observational properties challenge the canonical AGN paradigm and provide key insights into the early growth phase of the supermassive black ...
Yuxing Zhong, Xiaoyang Chen, Kohei Ichikawa, Youwen Kong, Kentaro Aoki, Satoshi Yamada, Tohru Nagao, Daisaburo Kido, Toshihiro Kawaguchi, Yoshiki Matsuoka, Toru Misawa, Shoichiro Mizukoshi, Masafusa Onoue, Ayumi Takahashi, Yoshiki Toba   +14 more
doaj   +1 more source

Collisionless Shocks: Contemporary State After Three Quarters of a Century of Research

Reviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract The collisionless shock research started in the late 1950s. Since then, plenty of data have been accumulated due to the large number of missions in the heliosphere, providing in situ measurements of the fields and particles. The quality of these measurements has vastly improved, especially in the last two decades.
M. Gedalin, M. Balikhin, V. Krasnoselskikh   +2 more
wiley   +1 more source

AChandraStudy of the Multicomponent X‐Ray Emission from the X‐shaped Radio Galaxy 3C 403 [PDF]

The Astrophysical Journal, 2005
35 pages, 12 figures, 3 tables - accepted for publication in the Astrophysical ...
Kraft, RP, Hardcastle, MJ, Worrall, DM, Murray, SS   +3 more
openaire   +2 more sources

The SVP–FRO6 Module Integrates the Control of Leaf Senescence and Flowering in Arabidopsis

Plant, Cell &Environment, Volume 49, Issue 9, Page 7191-7209, September 2026.
ABSTRACT Plants coordinate major developmental transitions by integrating intrinsic genetic programs with environmental signals, where nutrient availability serves as a critical external factor shaping growth and fitness. Iron (Fe), an essential micronutrient for cellular respiration and photosynthesis, is strictly regulated through sophisticated ...
Hyunsu Park, Yeong Seon Yoon, Sanghoon Park, Ukcheol Jeong, Hyeyoung Choi, Hyunwoo Oh, Dovran Shamamedov, Zhonghai Li, Hye Ryun Woo   +8 more
wiley   +1 more source

Origin and Evolution of Large-scale Magnetic Fields [PDF]

, 2015
Magnetic elds are ubiquitous at all scales in the Universe and have been observed in galaxies and clusters of galaxies via observations of di use radio emission and Faraday Rotation Measures.
Barnes, DJ
core  

The particle content of low-power radio galaxies in groups and clusters [PDF]

, 2013
The synchrotron-radiating particles and magnetic fields in low-power radio galaxies (including most nearby cluster-centre sources), if at equipartition, can provide only a small fraction of the total internal energy density of the radio lobes or plumes ...
Croston, J.H., J. H. Croston, Hardcastle, M.J., M. J. Hardcastle   +3 more
core   +1 more source

Optically and x-ray selected galaxy groups at intermediate redshift [PDF]

, 2012
In this thesis I present the properties of two samples of galaxy groups containing 39 high quality X-ray selected systems and 38 optically (spectroscopically) selected systems in coincident spatial regions at 0 ...
Connelly, Jennifer L.
core   +1 more source

MHD numerical simulations in a cosmological context [PDF]

, 2011
Magnetic fields in the Universe are found in almost all studied environments. In particular, their presence in the inter-galactic medium and in the intra-cluster medium is confirmed by diffuse radio emission as well as by observations of Faraday ...
Stasyszyn, Federico Andrés
core   +1 more source

Broad line emission from iron K- and L-shell transitions in the active galaxy 1H 0707-495

, 2009
Since the 1995 discovery of the broad iron K-line emission from the Seyfert galaxy MCG-6-30-15 (ref. 1), broad iron K lines have been found in emission from several other Seyfert galaxies, from accreting stellar-mass black holes and even from accreting ...
T. Boller, Reynolds, C., Tanaka, Y, Larsson, J., Reynolds, C.S., Boller, T., Zoghbi, A., Y. Tanaka, G. Miniutti, Brandt, W.N., Zoghbi, A, Blustin, A., Reis, R.C., W. N. Brandt, Ponti, G, Ross, R., Uttley, P., Cadallero-Garcia, M., C. S. Reynolds, Blustin, A. J., Caballero-Garcia, M.D., Young, A.J., P. Uttley, Reynolds, C.S, Miller, J.M., Ross, R.R., A. C. Fabian, Uttley, P, Tanaka, Y., Young, A.J, L. C. Gallo, J. M. Miller, Miniutti, G, Brandt, W. N., G. Ponti, Fabian, A.C., Brandt, W, Blustin, A.J, Reis, R., Reis, R. C., Blustin, A.J., A. J. Blustin, J. Larsson, Ross, R. R., Miller, J.M, A. Zoghbi, R. C. Reis, M. D. Caballero-Garcia, A. J. Young, Ross, R.R, Miller, Jon M., Brandt, W., Gallo, L. C., Fabian, A., Caballero-Garcia, M. D., Ponti, G., Miniutti, G., Larsson, J, R. R. Ross, Gallo, L., Young, A., Fabian, A.C, Fabian, Andy C., Caballero-Garcia, M.D, Boller, T, Reynolds, Christopher S., Miniutti, Giovanni, Gallo, L.C., Miller, J., Reis, R.C, Young, A. J.   +70 more
core   +1 more source

A MeerKAT exploration of X-shaped Radio Galaxies

SKA pathfinders and precursors have, over the past few years, uncovered radio galaxies with unforeseen morphological features and revealed unknown aspects of sources we thought we knew very well. We may expect to find larger populations of what for now are rare sources, thus shedding light on some of the current astrophysical mysteries.
openaire   +1 more source