Results 61 to 70 of about 37,734 (223)

Radio Afterglows from Tidal Disruption Events: An Unbiased Sample from ASKAP RACS

The Astrophysical Journal
Late-time (∼a year) radio follow-up of optically discovered tidal disruption events (TDEs) is increasingly resulting in detections at radio wavelengths, and there is growing evidence for this late-time radio activity to be common to the broad class of ...
Akash Anumarlapudi, Dougal Dobie, David L. Kaplan, Tara Murphy, Assaf Horesh, Emil Lenc, Laura Driessen, Stefan W. Duchesne, Hannah Dykaar, B. M. Gaensler, Timothy J. Galvin, Joe Grundy, George Heald, Aidan W. Hotan, Minh Huynh, James K. Leung, David McConnell, Vanessa A. Moss, Joshua Pritchard, Wasim Raja, Kovi Rose, Gregory Sivakoff, Yuanming Wang, Ziteng Wang, Mark H. Wieringa, Matthew T. Whiting   +25 more
doaj   +1 more source

Powerful Radio Sources in the Southern Sky. II. A Swift X-Ray Perspective

The Astrophysical Journal Supplement Series, 2023
We recently constructed the G4Jy-3CRE, a catalog of extragalactic radio sources based on the GLEAM 4-Jy (G4Jy) sample, with the aim of increasing the number of powerful radio galaxies and quasars with similar selection criteria to those of the revised ...
F. Massaro, S. V. White, A. Paggi, A. Jimenez-Gallardo, J. P. Madrid, C. Mazzucchelli, W. R. Forman, A. Capetti, C. Leto, A. García-Pérez, C. C. Cheung, V. Chavushyan, N. P. H. Nesvadba, I. Andruchow, H. A. Peña-Herazo, E. Sani, R. Grossová, V. Reynaldi, R. P. Kraft, B. Balmaverde, S. Cellone   +20 more
doaj   +1 more source

Updating the First CHIME/FRB Catalog of Fast Radio Bursts with Baseband Data

The Astrophysical Journal
In 2021, a catalog of 536 fast radio bursts (FRBs) detected with the Canadian Hydrogen Intensity Mapping Experiment (CHIME) radio telescope was released by the CHIME/FRB Collaboration.
The CHIME/FRB Collaboration, Mandana Amiri, Bridget C. Andersen, Shion Andrew, Kevin Bandura, Mohit Bhardwaj, P. J. Boyle, Charanjot Brar, Daniela Breitman, Tomas Cassanelli, Pragya Chawla, Amanda M. Cook, Alice P. Curtin, Matt Dobbs, Fengqiu Adam Dong, Gwendolyn Eadie, Emmanuel Fonseca, B. M. Gaensler, Utkarsh Giri, Antonio Herrera-Martin, Hans Hopkins, Adaeze L. Ibik, Ronniy C. Joseph, J. F. Kaczmarek, Zarif Kader, Victoria M. Kaspi, Adam E. Lanman, Mattias Lazda, Calvin Leung, Siqi Liu, Kiyoshi W. Masui, Ryan Mckinven, Juan Mena-Parra, Marcus Merryfield, Daniele Michilli, Cherry Ng, Kenzie Nimmo, Gavin Noble, Ayush Pandhi, Chitrang Patel, Aaron B. Pearlman, Ue-Li Pen, Emily Petroff, Ziggy Pleunis, Masoud Rafiei-Ravandi, Mubdi Rahman, Scott M. Ransom, Ketan R. Sand, Paul Scholz, Vishwangi Shah, Kaitlyn Shin, Yuliya Shpunarska, Seth R. Siegel, Kendrick Smith, Ingrid Stairs, David C. Stenning, Keith Vanderlinde, Haochen Wang, Henry White, Dallas Wulf   +59 more
doaj   +1 more source

The CHILES Continuum and Polarization Survey. I. Survey Design and Noise Characterization

The Astronomical Journal
We introduce and describe the CHILES Continuum and Polarisation (CHILES Con Pol) Survey, a 1000 hr 1.4 GHz wideband full polarization radio continuum deepfield with the Very Large Array, commensurate with the CHILES H i deepfield.
Nicholas M. Luber, Min S. Yun, Hansung B. Gim, Daniel Krista-Kelsey, D.J. Pisano, Emmanuel Momjian, Chris Hales   +6 more
doaj   +1 more source

Average fractional polarization of extragalactic sources at Planck frequencies

, 2018
Recent detailed simulations have shown that an insufficiently accurate characterization of the contamination of unresolved polarized extragalactic sources can seriously bias measurements of the primordial cosmic microwave background (CMB) power spectrum ...
Burigana, C., De Zotti, G., Galluzzi, V., Massardi, M., Trombetti, T.   +4 more
core   +1 more source

Rotation Measure Jitter: Wavelength-dependent Scatter in Rotation Measure Related to Faraday Complexity

The Astrophysical Journal
The relation between Faraday rotation measure (RM) and differential Faraday rotation by unresolved structure of a turbulent plasma is investigated for extragalactic radio sources.
Jeroen M. Stil
doaj   +1 more source

Flaring γ-Ray Emission from High Redshift Blazars

Galaxies, 2016
High redshift blazars are among the most powerful objects in the Universe. Although they represent a significant fraction of the extragalactic hard X-ray sky, they are not commonly detected in γ-rays. High redshift ( z > 2 ) objects represent
Monica Orienti, Filippo D’Ammando, Marcello Giroletti, Justin Finke, Daniele Dallacasa   +4 more
doaj   +1 more source

GMRT observations of the field of INTEGRAL X-ray sources- II (newly discovered hard X-ray sources)

, 2005
We have conducted low-frequency radio observations with the Giant Metrewave Radio Telescope (GMRT) of 40 new hard X-ray sources discovered by the INTEGRAL satellite.
A. P. Rao, Altenhoff, Bamba, Barlow, Becker, Belanger, Bird, C. H. Ishwara-Chandra, Capitanio, Condon, Condon, Corbel, Gursky, Jackson, Lutovinov, M. Pandey, Markwardt, Masetti, Monet, P. Durouchoux, Pandey, Pappa, R. Manchanda, Reig, Revnivtsev, Revnivtsev, Sidoli, Steeghs, Stephen, Swank, Ubertini, Voges, Zoonematkermani   +32 more
core   +1 more source

Radio properties of Compact Steep Spectrum and GHz-Peaked Spectrum radio sources [PDF]

, 2015
Compact steep spectrum (CSS) and GHz-peaked spectrum (GPS) radio sources represent a large fraction of the extragalactic objects in flux density-limited samples.
Alexander, Araya, Bicknell, Brocksopp, Burns, Cassaro, Conway, Cotton, Cotton, Dallacasa, Dallacasa, Dallacasa, Dasyra, Fanaroff, Fanti, Fanti, Fanti, Fanti, Fanti, Fanti, Garcia-Burillo, Giroletti, Gugliucci, Gupta, Hancock, Kellermann, Kunert, Kunert-Bajraszewska, Kunert-Bajraszewska, Kunert-Bajraszewska, Labiano, Luo, Mack, Mantovani, Mantovani, Mantovani, Marr, Marr, Mingaliev, Morganti, Morganti, Morganti, Morganti, Morganti, Murgia, Murgia, Murgia, Nagai, O'Dea, Ocaña-Flaquer, Orienti, Orienti, Orienti, Orienti, Orienti, Orienti, Orienti, Orienti, Parma, Peck, Peck, Pihlström, Polatidis, Polatidis, Readhead, Rossetti, Rossetti, Rossetti, Saikia, Saikia, Scott, Shulevski, Siemiginowska, Snellen, Snellen, Snellen, Spencer, Stanghellini, Stanghellini, Sutherland, Tingay, Tingay, Tinti, Torniainen, Torniainen, Tremblay, Vermeulen, Wilkinson   +87 more
core   +2 more sources

Observational Evidence of Accretion Disk-Caused Jet Precession in Galactic Nuclei

, 2005
We show that the observational data of extragalactic radio sources tend to support the theoretical relationship between the jet precession period and the optical luminosity of the sources, as predicted by the model in which an accretion disk causes the ...
Appl S., Bo-Yan Zhou, Collin-Souffrin S., Fanti C., Florido E., Hummel C. A., Hummel C. A., Hunstead R. W., Ju-Fu Lu, Klein U., Lu J. F., Nan R., Parma P., Rieger F. M., Roos N., Saikia D. J., Shakura N., van Ojik R., Vicente L.   +18 more
core   +2 more sources