Results 101 to 110 of about 25,844 (181)

Neutron Monitor Based Incoming Flux Correction for Cosmic‐Ray Neutron Sensing of Environmental Water

Water Resources Research, Volume 61, Issue 9, September 2025.
Abstract Monitoring of near‐surface water content with cosmic‐ray neutrons is strongly dependent on heliospheric and geomagnetic conditions. Neutron monitor (NM) stations are commonly used as a reference for the incoming cosmic radiation to correct the hydrological neutron signal.
Lasse Hertle, Steffen Zacharias, Nicholas Larsen, Daniel Rasche, David McJannet, Martin Schrön   +5 more
wiley   +1 more source

Galactic and Extragalactic Magnetic Fields

, 2009
The strength of the total magnetic field in our Milky Way from radio Zeeman and synchrotron measurements is about 6 muG near the Sun and several mG in dense clouds, pulsar wind nebulae, and filaments near the Galactic Center.
Felix A. Aharonian, Frank Rieger, Rainer Beck, Werner Hofmann   +3 more
core   +1 more source

Gravity Wave Variability in the Arctic Winter Mesosphere in Relation With the Stratospheric Polar Vortex

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 16, 28 August 2025.
Abstract In this study, we have investigated short‐period (< ${< } $1 hr) atmospheric gravity waves (AGWs) in the Arctic mesosphere‐lower thermosphere (MLT) region during January of 2014, 2015, and 2016. We used OH (3,1) band emission data from the Advanced Mesospheric Temperature Mapper (AMTM) at the Arctic Lidar Observatory for Middle Atmosphere ...
Subir Mandal, Tracy Moffat‐Griffin, Corwin J. Wright, Pierre‐Dominique Pautet, Mike J. Taylor, Takuji Nakamura   +5 more
wiley   +1 more source

Probing the Physics of Narrow Line Regions in Active Galaxies III: Accretion and Cocoon Shocks in the LINER NGC1052

, 2015
We present Wide Field Spectrograph (WiFeS) integral field spectroscopy and HST FOS spectroscopy for the LINER galaxy NGC 1052. We infer the presence of a turbulent accretion flow forming a small-scale accretion disk.
Banfield, Julie, Bhatt, Harish, Davies, Rebecca, Dopita, Michael A., Dressell, Linda L., Hampton, Elise, Ho, I-Ting, James, Bethan, Jin, Chichuan, Jose, Jessy, Juneau, Stéphanie, Kewley, Lisa, Kharb, Preeti, Ramya, S., Scharwächter, Julia, Shastri, Prajval, Srivastava, Shweta, Sutherland, Ralph, Zaw, Ingyin   +18 more
core   +2 more sources

Practical Modeling of Large-Scale Galactic Magnetic Fields: Status and Prospects

, 2019
This is a review of the status of efforts to model the large-scale Galactic magnetic field (GMF). Though important for a variety of astrophysical processes, the GMF remains poorly understood despite some interesting new tracers being used in the field ...
Jaffe, Tess R.
core   +1 more source

Massive black hole binaries as sources of low-frequency gravitational waves and X-shaped radio galaxies

Monthly Notices of the Royal Astronomical Society
ABSTRACT We present the study of multimessenger signatures of massive black hole (MBH) binaries residing in the centres of galaxy merger remnants. In particular, we first focus on the gravitational wave background (GWB) produced by an ensemble of MBH binary inspirals in the frequency range probed by the Pulsar Timing Array (PTA ...
Małgorzata Curyło, Tomasz Bulik
openaire   +2 more sources

Cosmic ray feedback in galaxies and galaxy clusters: A pedagogical introduction and a topical review of the acceleration, transport, observables, and dynamical impact of cosmic rays. [PDF]

Astron Astrophys Rev, 2023
Ruszkowski M, Pfrommer C.
europepmc   +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

From 100 MHz to 10 GHz: Unveiling the spectral evolution of the X-shaped radio galaxy in Abell 3670

Astronomy & Astrophysics
Context. X-shaped radio galaxies (XRGs) are characterised by two pairs of misaligned lobes: active lobes hosting radio jets and the wings. None of the formation mechanisms proposed thus far are able to exhaustively reproduce the diverse features observed among XRGs.
L. Bruno, M. Brienza, A. Zanichelli, M. Gitti, F. Ubertosi, K. Rajpurohit, T. Venturi, D. Dallacasa   +7 more
openaire   +3 more sources

Magnetic fields and relativistic electrons fill entire galaxy cluster. [PDF]

Sci Adv, 2022
Botteon A, van Weeren RJ, Brunetti G, Vazza F, Shimwell TW, Brüggen M, Brüggen M, Röttgering HJA, de Gasperin F, Akamatsu H, Bonafede A, Cassano R, Cuciti V, Dallacasa D, Di Gennaro G, Gastaldello F.   +15 more
europepmc   +1 more source