Results 61 to 70 of about 166 (155)

Evidence for a Black Hole in a Radio-Quiet Quasar Nucleus [PDF]

The Astrophysical Journal, 1996
10 pages including 1 postscript figure; uses aaspp4.sty. Accepted for publication in Ap. J. Lett. Also available from http://www-astro.physics.ox.ac.uk/research/preprints/
Blundell, K, Beasley, A, Lacy, M, Garrington, S   +3 more
openaire   +2 more sources

VLASS-based Survey of Transition State Galaxies and Their Relationship to Compact Peaked-spectrum Radio Sources

The Astrophysical Journal Supplement Series
We present multifrequency and high-resolution studies of a sample of 24 radio transient sources discovered by comparing the NRAO VLA Sky Survey and the Very Large Array Sky Survey.
Magdalena Kunert-Bajraszewska, Aleksandra Krauze, Amy E. Kimball, Łukasz Stawarz, Preeti Kharb, Daniel Stern, Kunal Mooley, Kristina Nyland, Dorota Kozieł-Wierzbowska   +8 more
doaj   +1 more source

Experimental demonstration of real‐time cardiac physiology‐based radiotherapy gating for improved cardiac radioablation on an MR‐linac

Medical Physics, Volume 51, Issue 4, Page 2354-2366, April 2024.
Abstract Background Cardiac radioablation is a noninvasive stereotactic body radiation therapy (SBRT) technique to treat patients with refractory ventricular tachycardia (VT) by delivering a single high‐dose fraction to the VT isthmus. Cardiorespiratory motion induces position uncertainties resulting in decreased dose conformality.
Osman Akdag, Pim T. S. Borman, Stefano Mandija, Peter L. Woodhead, Prescilla Uijtewaal, Bas W. Raaymakers, Martin F. Fast   +6 more
wiley   +1 more source

VLBA Imaging of Central Engines in Radio‐Quiet Quasars [PDF]

The Astrophysical Journal, 2005
Accepted for ApJ, Vol. 621, March 1, 2005.
Ulvestad, James S., Antonucci, Robert R. J., Barvainis, Richard   +2 more
openaire   +2 more sources

ASCA view on high-redshift radio-quiet quasars [PDF]

AIP Conference Proceedings, 2001
We briefly discuss the latest ASCA results on the X-ray spectral properties of high-redshift radio-quiet quasars.
Vignali, C., Comastri, A., Cappi, M., Palumbo, G. G. C., Matsuoka, M.   +4 more
openaire   +2 more sources

The Hosts Galaxies of Radio-Loud and Radio-Quiet Quasars

, 2001
Latex, 10 pages, including 6 postscript figures.
openaire   +2 more sources

Broad Emission-Line Shifts in Quasars: An Orientation Measure for Radio-Quiet Quasars? [PDF]

The Astronomical Journal, 2002
37 pages, 11 figures (2 color), 2 tables. AJ in press.
Richards, GT, Berk, DEV, Reichard, TA, Hall, PB, Schneider, DP, SubbaRao, M, Thakar, AR, York, DG   +7 more
openaire   +4 more sources

Probing the Low-radio-frequency Emission in PG Quasars with the uGMRT. II

The Astrophysical Journal Supplement Series
We present results from uGMRT 685 MHz observations of 87 QSOs belonging to the Palomar–Green (PG) quasar sample with z  
Sanna Gulati, S. Silpa, P. Kharb, Luis C. Ho, S. Ghosh, J. Baghel   +5 more
doaj   +1 more source

Discovery of a Radio-loud/Radio-quiet Binary Quasar

The Astrophysical Journal, 1999
8 pages, 3 figures, to appear in Astrophysical Journal ...
Brotherton, M. S., Gregg, Michael D., Becker, R. H., Laurent-Muehleisen, S. A., White, R. L., Stanford, S. A.   +5 more
openaire   +2 more sources

The Jet-Disk Coupling of Seyfert Galaxies from a Complete Hard X-ray Sample

Universe, 2020
We analyze the jet-disk coupling for different subsamples from a complete hard X-ray Seyfert sample to study the coupling indices and their relation to accretion rate.
Xiang Liu, Ning Chang, Zhenhua Han, Xin Wang   +3 more
doaj   +1 more source