Results 41 to 50 of about 6,679 (304)

Broadband VLA Spectral-line Survey of a Sample of Ionized Jet Candidates

The Astrophysical Journal Supplement Series, 2023
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 momentum outward ...
E. Sanchez-Tovar, E. D. Araya, V. Rosero, P. Hofner, S. Kurtz   +4 more
doaj   +1 more source

The Close AGN Reference Survey (CARS): An interplay between radio jets and AGN radiation in the radio-quiet AGN HE0040-1105 [PDF]

, 2023
We present a case study of HE 0040-1105, an unobscured radio-quiet active galactic nucleus (AGN) at a high accretion rate of λ Edd = 0.19 ± 0.04. This particular AGN hosts an ionized gas outflow with the largest spatial offset from its nucleus compared ...
McElroy, R., Combes, F., Baum, S. A., Perez Torres, M., Winkel, N., Rose, T., Neumann, J., Omoruyi, Osase, Omoruyi, O., O’Dea, C. P., Davis, T. A., Vaddi, S., Pérez-Torres, M., Smirnova-Pinchukova, I., Gaspari, M., Torres, M. Perez, O'Dea, C. P., Singha, M., Husemann, B., Lawlor-Forsyth, C., Tremblay, G. R., Baum, S.A.   +21 more
core   +1 more source

A STUDY OF RADIO POLARIZATION IN PROTOSTELLAR JETS [PDF]

The Astrophysical Journal, 2016
ABSTRACT Synchrotron radiation is commonly observed in connection with shocks of different velocities, ranging from relativistic shocks associated with active galactic nuclei, gamma-ray bursts, or microquasars, to weakly or non-relativistic flows such as those observed in supernova remnants. Recent observations of synchrotron emission in
Mariana Cécere, Pablo F. Velázquez, Anabella T. Araudo, Fabio De Colle, Alejandro Esquivel, Carlos Carrasco-González, Luis F. Rodríguez   +6 more
openaire   +2 more sources

Radio jet interactions in the radio galaxy PKS 2152—699 [PDF]

Monthly Notices of the Royal Astronomical Society, 1998
We present radio observations of the radio galaxy PKS 2152-699 obtained with the Australia Telescope Compact Array (ATCA). The much higher resolution and s/n of the new radio maps reveals the presence of a bright radio component about 10 arcsec NE of the nucleus.
Fosbury, R. A. E., Morganti, R., Wilson, W., Ekers, R. D., Alighieri, S. di Serego, Tadhunter, C. N.   +5 more
openaire   +2 more sources

Radio jets and gamma-ray emission in radio-silent narrow-line Seyfert 1 galaxies

, 2018
We have detected six narrow-line Seyfert 1 (NLS1) galaxies at 37 GHz that were previously classified as radio silent and two that were classified as radio quiet.
Lähteenmäki, A., Tornikoski, M., Ramakrishnan, V., V. Ramakrishnan, W. Chamani, A. Lähteenmäki, R. J. C. Vera, Vera, R. J.C., E. Järvelä, M. Tornikoski, Järvelä, E., Chamani, Wara, Chamani, W., Tammi, J., J. Tammi   +14 more
core   +2 more sources

A Transient Radio Jet in an Erupting Dwarf Nova [PDF]

Science, 2008
Astrophysical jets seem to occur in nearly all types of accreting objects, from supermassive black holes to young stellar objects. On the basis of x-ray binaries, a unified scenario describing the disc/jet coupling has evolved and been extended to many accreting objects.
Kording, Elmar, Rupen, Michael, Knigge, Christian, Fender, Rob, Dhawan, Vivek, Templeton, Matthew, Muxlow, Tom   +6 more
openaire   +5 more sources

Relativistic jets in narrow-line Seyfert 1 galaxies. New discoveries and open questions

EPJ Web of Conferences, 2013
Before the launch of the Fermi satellite only two classes of AGNs were known to produce relativistic jets and thus emit up to the γ-ray energy range: blazars and radio galaxies, both hosted in giant elliptical galaxies.
D’Ammando F., Orienti M., Finke J., Larsson J., Giroletti M.   +4 more
doaj   +1 more source

Jets from radio pulsars

Vistas in Astronomy, 1997
The observational evidence for jets and phenomena arising from rotation powered radio pulsars is reviewed, including many recent and exciting discoveries at X-ray wavelengths. The well studied jets of the Crab pulsar are summarised, including recent results from the HST.
openaire   +2 more sources

The Radio Jet of 3C273 [PDF]

Symposium - International Astronomical Union, 1982
Most radio sources are two-sided, like Cygnus A. A minority, however, are one-sided, and the first-known and brightest example is 3C273 (see Fig. 1), a high-luminosity QSO, showing ‘super-luminal’ proper motions in the core. The explanation of such one-sided sources may follow one of two lines (and it seems that both schools of thought are represented ...
openaire   +1 more source

VLBI Observations of the Radio Jet in 3C 273 [PDF]

Symposium - International Astronomical Union, 1988
We present a new high dynamic range map of the quasar 3C 273, made from observations with a VLBI network of 12 telescopes. This new map at 18 cm wavelength has one of the highest dynamic ranges yet achieved with VLBI, and it shows the ‘jet’ extending to at least 180 milliarcsec, or 330 pc from the nucleus of the quasar.
S. C. Unwin, R. J. Davis
openaire   +1 more source