Results 91 to 100 of about 544 (157)

Simulations of cosmic ray propagation. [PDF]

Living Rev Comput Astrophys, 2021
Hanasz M, Strong AW, Girichidis P.
europepmc   +1 more source

A repeating fast radio burst associated with a persistent radio source. [PDF]

Nature, 2022
Niu CH, Aggarwal K, Li D, Zhang X, Chatterjee S, Tsai CW, Yu W, Law CJ, Burke-Spolaor S, Cordes JM, Zhang YK, Ocker SK, Yao JM, Wang P, Feng Y, Niino Y, Bochenek C, Cruces M, Connor L, Jiang JA, Dai S, Luo R, Li GD, Miao CC, Niu JR, Anna-Thomas R, Sydnor J, Stern D, Wang WY, Yuan M, Yue YL, Zhou DJ, Yan Z, Zhu WW, Zhang B.   +34 more
europepmc   +1 more source

The MOSDEF-KCWI Survey: Spectral Properties of Lyα Halos around z ∼ 2 Star-forming Galaxies

The Astrophysical Journal
We present Keck Cosmic Web Imager integral field observations of extended Ly α emission in the circumgalactic medium of 27 typical star-forming galaxies at z ∼ 2, drawn from the Multi-Object Spectrometer for Infra-Red Exploration (MOSFIRE) Deep Evolution
Andrew Weldon, Zhiyuan Song, Naveen A. Reddy, Alice E. Shapley   +3 more
doaj   +1 more source

Studying the Circumgalactic Medium with MeerKAT

In order to understand how galaxies accrete gas from their surroundings and the impacts of feedback on quenching this accretion, it is necessary to study the circumgalactic medium (CGM).  While we have estimates of the total mass and metallicity of the CGM from UV absorption line studies, in order to understand the flow of gas onto and out of galaxy ...
openaire   +2 more sources

Thermal Structure and Chemical Enrichment of the North and South Polar Spurs: Supersolar N/O and Ne/O in the X-Ray Plasma

The Astrophysical Journal
The North Polar Spur (NPS) is a prominent diffuse X-ray feature whose origin has remained uncertain for decades. Using a uniform analysis of archival Suzaku and XMM-Newton data with new Chandra observations, we constrain its thermal and chemical ...
Anjali Gupta, Smita Mathur, Joshua Kingsbury, Anthony Taylor, Sanskriti Das, Joy Bhattacharya, Manami Roy, Yair Krongold   +7 more
doaj   +1 more source

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

Making the Deepest Images of the Circumgalactic Medium

Proceedings of the International Astronomical Union
Abstract The aim of this research is to utilise data from the IMAGINE survey to probe deeper into the circumgalactic medium (CGM) of spiral galaxy NGC7424 and identify large scale HI structures using the high column densities achievable with ATCA.
Tasmiyah Rawoot, D.J. Pisano
openaire   +1 more source

Mapping the z ∼ 2 Circumgalactic Medium with KBSS Galaxy Pairs

The Astrophysical Journal
We present new results on the spatial structure and kinematics of the circumgalactic medium (CGM) of z  ∼ 2 star-forming galaxies drawn from the Keck Baryonic Structure Survey, using Ly α and metallic ion absorption recorded in spectra of background ...
Nikolaus Z. Prusinski, Charles C. Steidel, Yuguang Chen   +2 more
doaj   +1 more source

A Framework for Ultralow Surface-brightness Integral-field-unit Emission Mapping with the Keck Cosmic Web Imager

The Astronomical Journal
Detecting spatially resolved emission at surface-brightness levels of ∼10 ^−20 –10 ^−19  erg cm ^−2  s ^−1  arcsec ^−2  Å ^−1 in optical integral-field spectroscopy requires reduction procedures limited not by photon statistics, but by systematic effects
Zeren Lin, D. Christopher Martin
doaj   +1 more source

The Detection Rate of Associated Mg ii Absorption Lines in Quasars Depends on Their Radio Emission

The Astrophysical Journal
In active galactic nuclei, jet-driven feedback plays a significant role in influencing the properties of gas within their host galaxy and the circumgalactic medium.
Zhi-Fu Chen, Luis C. Ho
doaj   +1 more source