Results 81 to 90 of about 345 (143)

Estimation of Magnetic Fields from Synchrotron Emission: Numerical Tests

The Astrophysical Journal
We use models of spectrally resolved cosmic-ray (CR) transport in TIGRESS MHD simulations of the local interstellar medium to produce synthetic synchrotron emission and to test, on scales from a few kiloparsecs down to ∼10 pc, the traditional estimate of
Nora B. Linzer, Lucia Armillotta, Eve C. Ostriker, Eliot Quataert   +3 more
doaj   +1 more source

The Central Engine of Low-luminosity Radio Galaxy 3C 270 (NGC 4261)

The Astrophysical Journal
We present the polarization spectra of the nucleus of 3C 270. We confirm that the polarization angles of both the continuum and the emission lines are close to perpendicular to the jet direction after careful correction of interstellar polarization ...
Chengzhang Jiang, Robert Antonucci, J. A. Acosta-Pulido, Patrick Ogle   +3 more
doaj   +1 more source

Chiroptical activity of gas-phase propylene oxide predicting the handedness of interstellar circular polarization in the presolar nebula. [PDF]

Sci Adv, 2022
Garcia AD, Topin J, Bocková J, Jones NC, Hoffmann SV, Meinert C.   +5 more
europepmc   +1 more source

synax: A Differentiable and GPU-accelerated Synchrotron Simulation Package

The Astrophysical Journal Supplement Series
We introduce synax ( https://github.com/dkn16/Synax ), a novel library for automatically differentiable simulation of Galactic synchrotron emission. Built on the JAX framework, synax leverages JAX’s capabilities, including batch acceleration, just-in ...
Kangning Diao, Zack Li, Richard D. P. Grumitt, Yi Mao   +3 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

Aryl radical addition-dehydrocyclization drives rapid polycyclic aromatic hydrocarbon growth. [PDF]

Nat Commun
Goettl SJ, Sun BJ, Turner AM, Drissi M, Garcia GA, Nahon L, Kadam KP, Chang AHH, Kaiser RI.   +8 more
europepmc   +1 more source

Gas-phase formation of the resonantly stabilized 1-indenyl (C₉H₇^•) radical in the interstellar medium. [PDF]

Sci Adv, 2023
Yang Z, Galimova GR, He C, Goettl SJ, Paul D, Lu W, Ahmed M, Mebel AM, Li X, Kaiser RI.   +9 more
europepmc   +1 more source

Shared cloud interactions unveil a candidate binary-system supernova pair with no known analogue. [PDF]

Nat Commun
Michailidis M, Lemoine-Goumard M, Willcox R, Gabici S, Di Lalla N, Omodei N.   +5 more
europepmc   +1 more source

Infrared Spectra of Small Radicals for Exoplanetary Spectroscopy: OH, NH, CN and CH: The State of Current Knowledge. [PDF]

Molecules, 2023
Civiš S, Pastorek A, Ferus M, Yurchenko SN, Boudjema NI.   +4 more
europepmc   +1 more source

A periodic system of polycyclic aromatic hydrocarbons for predictive molecular growth processes. [PDF]

Chem Sci
Li W, Ju H, Xu MG, Goettl SJ, Yang JZ, Zhao L, Kaiser RI.   +6 more
europepmc   +1 more source