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Intense, millisecond-duration bursts of radio waves have been detected from beyond the Milky Way [1]. Their extragalactic origins are evidenced by their large dispersion measures, which are greater than expected for propagation through the…

High Energy Astrophysical Phenomena · Physics 2019-07-03 V. Ravi , M. Catha , L. D'Addario , S. G. Djorgovski , G. Hallinan , R. Hobbs , J. Kocz , S. R. Kulkarni , J. Shi , H. K. Vedantham , S. Weinreb , D. P. Woody

We observed the X-ray-bright ultra-luminous infrared galaxy, IRAS 05189$-$2524, with XRISM during its performance verification phase. The unprecedented energy resolution of the onboard X-ray microcalorimeter revealed complex spectral…

The extremely high redshift (z=5.3) radio source SDSS J102623.61+254259.5 (J1026+2542) is among the most distant and most luminous radio-loud active galactic nuclei (AGN) known to date. Its one-sided radio jet structure on milli-arcsecond…

Astrophysics of Galaxies · Physics 2014-12-03 S. Frey , Z. Paragi , J. O. Fogasy , L. I. Gurvits

Large scale X-ray jets that extend to >100 kpc distances from the host galaxy indicate the importance of jets interactions with the environment on many different physical scales. Morphology of X-ray clusters indicate that the radio-jet…

Cosmology and Nongalactic Astrophysics · Physics 2010-03-02 Aneta Siemiginowska , Bozena Czerny , Agnieszka Janiuk , Lukasz Stawarz , Matteo Guainazzi , Annalisa Celotti , Giulia Migliori , Olaf Tengstrand

A recent Chandra observation of the nearby galaxy cluster Abell 585 has led to the discovery of an extended X-ray jet associated with the high-redshift background quasar B3 0727+409, a luminous radio source at redshift z=2.5. This is one of…

High Energy Astrophysical Phenomena · Physics 2016-01-13 A. Simionescu , Ł. Stawarz , Y. Ichinohe , C. C. Cheung , M. Jamrozy , A. Siemiginowska , K. Hagino , P. Gandhi , N. Werner

We present Very Long Baseline Interferometry (VLBI) observations of the high mass X-ray binary LSI+61303, carried out with the European VLBI Network (EVN). Over the 11 hour observing run, performed 10 days after a radio outburst, the radio…

Astrophysics · Physics 2007-05-23 M. Massi , M. Ribo , J. M. Paredes , M. Peracaula , R. Estalella

We present high angular resolution ALMA CO(2-1) and 1.7 mm continuum observations of the far-infrared-bright galaxy PKS0023-26, which hosts a young radio source and a luminous optical AGN. Although young, the powerful radio source has grown…

Astrophysics of Galaxies · Physics 2021-12-08 Raffaella Morganti , Tom Oosterloo , Clive Tadhunter , Emmanuel P. Bernhard , J. B. Raymond Oonk

The orientation of the jet axis to the line of sight of the observer plays a major role in explaining the phenomena observed from blazars and radio galaxies. In the gamma-ray band, only a handful of radio galaxies have been identified, all…

High Energy Astrophysical Phenomena · Physics 2023-01-04 Vaidehi S. Paliya , D. J. Saikia , C. S. Stalin

In radio bands, the study of compact radio sources can be affected by propagation effects through the Interstellar Medium. These are usually attributed to the presence of turbulent intervening plasma along the line of sight. Here, two of…

Astrophysics · Physics 2013-09-26 K. É. Gabányi , S. Britzen , T. P. Krichbaum , U. Bach , L. Fuhrmann , A. Kraus , A. Witzel , J. A. Zensus

We present a multiwavelength analysis of 20 EUV jets which occurred at the periphery of active regions close to sunspots. We discuss the physical parameters of the jets and their relation with other phenomena such as H alpha surges,…

Solar and Stellar Astrophysics · Physics 2016-04-20 Sargam M. Mulay , Durgesh Tripathi , Giulio Del Zanna , Helen Mason

Recent imaging observations with the Interface Region Imaging Spectrograp (IRIS) have revealed prevalent intermittent jets with apparent speeds of 80--250 km~s$^{-1}$ from the network lanes in the solar transition region (TR). On the other…

Solar and Stellar Astrophysics · Physics 2019-03-13 Yajie Chen , Hui Tian , Zhenghua Huang , Hardi Peter , Tanmoy Samanta

Fast (~1000 km/s) outflows of neutral gas (from 21-cm HI absorption) are detected in strong radio sources. The outflows occur, at least in some cases, at distances from the radio core that range between few hundred parsecs and kpc. These HI…

Astrophysics · Physics 2007-05-23 Raffaella Morganti , Clive Tadhunter , Tom Oosterloo , Joanna Holt , Bjorn Emonts

Type III radio bursts are intense radio emissions triggered by beams of energetic electrons often associated with solar flares. These exciter beams propagate outwards from the Sun along an open magnetic field line in the corona and in the…

Solar and Stellar Astrophysics · Physics 2015-08-19 Vratislav Krupar , Eduard P. Kontar , Jan Soucek , Ondrej Santolik , Milan Maksimovic , Oksana Kruparova

IRAS 09104+4109 is a rare example of a dust enshrouded type 2 QSO in the centre of a cool-core galaxy cluster. Previous observations of this z=0.44 system showed that as well as powering the hyper-luminous infrared emission of the…

We present an update of our on-going project to characterise the impact of radio jets on the ISM by tracing molecular gas at high spatial resolution using ALMA. The radio active galactic nuclei (AGN) studied show recently born radio jets.…

High Energy Astrophysical Phenomena · Physics 2021-07-01 Raffaella Morganti , Tom Oosterloo , Clive N. Tadhunter

We present results of temporal and spectral analyses on four XMM-Newton EPIC pn observations of IRAS 17020+4544, a narrow-line Seyfert 1 galaxy with evidence of a radio jet. Analysis of the light curves reveals that this radio-loud source…

High Energy Astrophysical Phenomena · Physics 2020-06-17 A. G. Gonzalez , L. C. Gallo , P. Kosec , A. C. Fabian , W. N. Alston , M. Berton , D. R. Wilkins

We present new high spatial resolution VLT and VLA observations of a sample of nine low-power (P_{1.4 GHz} < 10^{25} W/Hz) radio hotspots. Infrared/optical emission is definitely detected in four of the nine observed objects, resulting in a…

Astrophysics · Physics 2009-11-13 K. -H. Mack , M. A. Prieto , G. Brunetti , M. Orienti

We investigate the correlations between spectral index, jet side and extent of the radio lobes for a sample of nearby FRII radio galaxies. In Dennett-Thorpe et al. (1997) we studied a sample of quasars and found that the high surface…

Astrophysics · Physics 2009-10-31 J. Dennett-Thorpe , A. H. Bridle , R. A. Laing , P. A. G. Scheuer

We present high-spatial resolution Plateau de Bure Interferometer CO(2-1) and SiO(2-1) observations of one intermediate-mass and one high-mass star-forming region. The intermediate-mass region IRAS20293+3952 exhibits four molecular…

Astrophysics · Physics 2009-11-10 H. Beuther , P. Schilke , F. Gueth

F00183-7111 is one of the most extreme Ultra-Luminous Infrared Galaxies known. Here we present a VLBI image which shows that F00183-7111 is powered by a combination of a radio-loud Active Galactic Nucleus surrounded by vigorous starburst…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Ray P. Norris , Emil Lenc , Alan L. Roy , Henrik Spoon