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Related papers: A search for ionized jets towards massive young st…

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We report 3 mm continuum, CH3CN(5-4) and 13CS(2-1) line observations with CARMA, in conjunction with 6 and 1.3 cm continuum VLA data, and 12 and 25 micron broadband data from the Subaru Telescope toward the massive proto-star…

Astrophysics of Galaxies · Physics 2017-07-26 P. Hofner , R. Cesaroni , S. Kurtz , V. Rosero , C. Anderson , R. S. Furuya , E. D. Araya , S. Molinari

We present a survey of H2 jets from young protostars in the Vela-D molecular cloud (VMR-D), based on Spitzer -IRAC data between 3.6 and 8.0 micron. Our search has led to the identification of 15 jets and about 70 well aligned knots within…

Astrophysics of Galaxies · Physics 2015-06-15 T. Giannini , D. Lorenzetti , M. De Luca , F. Strafella , D. Elia , B. Maiolo , M. Marengo , Y. Maruccia , F. Massi , B. Nisini , L. Olmi , A. Salama , H. A. Smith

Ultraviolet observations of classical T Tauri Stars (cTTSs) have shown that there is a hot (Te ~ 80,000 K) and dense (ne ~ 1e10 cm-3) component associated with the large scale jet. This hot component is formed very close to the base of the…

Solar and Stellar Astrophysics · Physics 2015-05-20 Ana I. Gomez de Castro , Brigitta von Rekowski

We study a sample of 44 low-luminosity radio-loud AGN, which represent a range of nuclear radio-power spanning 5 orders of magnitude, to unveil the accretion mechanism in these galaxies. We estimate the accretion rate of gas associated with…

Astrophysics · Physics 2009-11-13 Barbara Balmaverde , Ranieri D. Baldi , Alessandro Capetti

We study a series of X-ray-bright, rapidly-evolving active-region coronal jets outside the leading sunspot of AR 12259, using Hinode/XRT, SDO/AIA and HMI, and IRIS data. The detailed evolution of such rapidly evolving "violent" jets…

Solar and Stellar Astrophysics · Physics 2017-07-26 Alphonse C. Sterling , Ronald L. Moore , David A. Falconer , Navdeep K. Panesar , Francisco Martinez

Protostellar jets appear at all stages of star formation when the accretion process is still at work. Jets travel at velocities of hundreds of km/s, creating strong shocks when interacting with interstellar medium. Several cases of jets…

Astrophysics of Galaxies · Physics 2015-06-17 J. Lopez-Santiago , C. S. Peri , R. Bonito , M. Miceli , J. F. Albacete-Colombo , P. Benaglia , E. de Castro

We present spatially resolved maps of morphology, kinematics, and energetics of warm ionized gas in six powerful radio galaxies at z=3.5-4, using JWST/NIRSpec IFU to quantify jet-driven feedback in the early universe. All sources exhibit…

Astrophysics of Galaxies · Physics 2025-08-12 Namrata Roy , Timothy Heckman , Alaina Henry

To investigate the impact of radio jets during the formation epoch of their massive host galaxies, we present an analysis of two massive, log(M_stel/ M_sun)~10.6 and 11.3, compact radio galaxies at z=3.5, TNJ0205+2242 and TNJ0121+1320.…

Astrophysics · Physics 2009-11-13 N. P. H. Nesvadba , M. D. Lehnert , C. De Breuck , A. Gilbert , W. van Breugel

Relativistic jets are believed to have a substantial impact on the gas dynamics and evolution of the interstellar medium (ISM) of their host galaxies. In this paper, we aim to draw a link between the simulations and the observable…

Newly born and young radio sources are in a delicate phase of their life. Their jets are fighting their way through the surrounding gaseous medium, strongly experiencing this interaction while, at the same time, impacting and affecting the…

Astrophysics of Galaxies · Physics 2016-03-16 R. Morganti , T. Oosterloo , F. M. Maccagni , K. Gereb , J. B. R. Oonk , C. N. Tadhunter

Context: Hot coronal jets are a basic observed feature of the solar atmosphere whose physical origin is still being actively debated. Aims: We study six recurrent jets occurring in the active region NOAA 12644 on April 04, 2017. They are…

The study of the interaction between ionized jets, molecular outflows and their environments is critical to understanding high-mass star formation, especially because jets and outflows are thought to be key in the transfer of angular…

Astrophysics of Galaxies · Physics 2023-08-16 E. Sanchez-Tovar , E. D. Araya , V. Rosero , P. Hofner , S. Kurtz

It is commonly accepted that jets have not been observed in CVs so far. This absence was recently explained by their low mass transfer rates compared with objects with jets. A mass accretion limit for jets in CVs was proposed to be about…

Astrophysics · Physics 2009-11-10 Alon Retter

Decameter hectometric (DH; 1-14 MHz) type-IV radio bursts are produced by flare-accelerated electrons trapped in post-flare loops or the moving magnetic structures associated with the CMEs. From a space weather perspective, it is important…

Solar and Stellar Astrophysics · Physics 2024-07-09 Atul Mohan , Nat Gopalswamy , Anshu Kumari , Sachiko Akiyama , Sindhuja G

Observations of free-free continuum radio emission of four young main-sequence solar-type stars (EK Dra, Pi1 UMa, Chi1 Ori; and Kappa1 Cet) are studied to detect stellar winds or at least to place upper limits on their thermal radio…

The Chandra X-ray observatory has proven to be a vital tool for studying high-energy emission processes in jets associated with Active Galactic Nuclei (AGN).We have compiled a sample of 27 AGN selected from the radio flux-limited MOJAVE…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Brandon Hogan , Matthew Lister , Preeti Kharb , Herman Marshall , Nathan Cooper

Wide-angle tail radio galaxies (WATs) are an uncommon class of radio sources with luminosities near the FRI/FRII break, and are usually associated with central cluster galaxies. Their defining characteristic when imaged sensitively at high…

Astrophysics · Physics 2009-11-10 M. J. Hardcastle , I. Sakelliou

We have imaged the enigmatic radio source-I (Orion-I) in the Orion-KL nebula with the VLA at 43 GHz with 34 mas angular resolution. The continuum emission is highly elongated and is consistent with that expected from a nearly edge-on disk.…

Astrophysics · Physics 2009-06-23 M. J. Reid , K. M. Menten , L. J. Greenhill , C. J. Chandler

Jets (transient/collimated plasma ejections) occur frequently throughout the solar corona and contribute mass/energy to the corona and solar wind. By combining numerical simulations and high-resolution observations, we have made substantial…

Solar and Stellar Astrophysics · Physics 2019-03-20 Pankaj Kumar , Judith T. Karpen , Spiro K. Antiochos , Peter F. Wyper , C. Richard DeVore , Craig E. DeForest

(Abridged) We present a comprehensive study of the relation between radio and X-ray emission in neutron star X-ray binaries, use this to infer the general properties of the disc-jet coupling in such systems, and compare the results…

Astrophysics · Physics 2009-11-13 S. Migliari , R. P. Fender