Results 21 to 30 of about 139,917 (298)

Cooperative Search of Multiple Unknown Transient Radio Sources Using Multiple Paired Mobile Robots [PDF]

IEEE Transactions on Robotics, 2014
We develop a localization method to enable a team of mobile robots to search for multiple unknown transient radio sources. Because of signal source anonymity, short transmission durations, and dynamic transmission patterns, robots cannot treat the radio sources as continuous radio beacons.
Chang-Young Kim, Dezhen Song, Yiliang Xu, Jingang Yi, Xinyu Wu   +4 more
openaire   +2 more sources

The Allen Telescope Array Pi GHz Sky Survey I. Survey Description and Static Catalog Results for the Bootes Field [PDF]

, 2010
The Pi GHz Sky Survey (PiGSS) is a key project of the Allen Telescope Array. PiGSS is a 3.1 GHz survey of radio continuum emission in the extragalactic sky with an emphasis on synoptic observations that measure the static and time-variable properties of ...
Abazajian, Abdo, Amber Bauermeister, Andrew Siemion, Artyom Vitouchkine, Ashby, Baars, Becker, Billy Barott, Bower, Bower, Calvin Cheng, Carilli, Carl Heiles, Casey Law, Chat Hull, Chris Cork, Colby Gutierrez-Kraybill, Condon, Croft, Dan Werthimer, Dave DeBoer, Dave MacMahon, David Whysong, de Vries, Don Backer, Douglas Bock, Douglas Thornton, Ed Fields, Falcke, Fassnacht, Frail, G. R. Harp, Gal-Yam, Garrett Keating, Geoffrey C. Bower, Greg Engargiola, Healey, Hessels, Hopkins, Hull, Hyman, Hyman, Ivezić, Jack Welch, Jane Jordan, Jannuzi, Jill Tarter, Joeri van Leeuwen, John Dreher, John Lugten, John Ross, Karen Randall, Keating, Ken Smolek, Law, Leo Blitz, Levinson, Lynn Urry, Matsumura, Matt Dexter, Matt Fleming, Melvyn Wright, Mike Davis, Niklas Wadefalk, Ofek, Oren Milgrome, Osten, Peter Backus, Peter K. G. Williams, Peter McMahon, R. James Forster, Rob Ackermann, Sandy Weinreb, Sault, Schilizzi, Senkbeil, Sesar, Seth Shostak, Shannon Atkinson, Steve Croft, Susanne Jorgensen, Tamara Helfer, Tom Kilsdonk, Tom Pierson, Tucker Bradford, Voges, Welch, Williams   +88 more
core   +5 more sources

Calculation and Uncertainty of Fast Radio Burst Structure Based on Smoothed Data

The Astrophysical Journal, 2023
Studies of the time-domain structure of fast radio bursts (FRBs) require an accurate estimate of the FRB dispersion measure in order to recover the intrinsic burst shape.
Adrian T. Sutinjo, Danica R. Scott, Clancy W. James, Marcin Glowacki, Keith W. Bannister, Hyerin Cho, Cherie K. Day, Adam T. Deller, Timothy P. Perrett, Ryan M. Shannon   +9 more
doaj   +1 more source

A Search for Single Radio Pulses and Bursts from Southern AXPs [PDF]

, 2007
We observed four southern AXPs in 1999 near 1400 MHz with the Parkes 64-m radio telescope to search for periodic radio emission. No Fourier candidates were discovered in the initial analysis, but the recent radio activity observed for the AXP XTE J1810 ...
A. Cumming, C. Bassa, F. Crawford, J. W. T. Hessels, V. M. Kaspi, V. M. Kaspi, Z. Wang   +6 more
core   +4 more sources

VAST: An ASKAP Survey for Variables and Slow Transients [PDF]

, 2012
The Australian Square Kilometre Array Pathfinder (ASKAP) will give us an unprecedented opportunity to investigate the transient sky at radio wavelengths. In this paper we present VAST, an ASKAP survey for Variables and Slow Transients.
Alard, ANNE J. GREEN, ATISH KAMBLE, B. M. GAENSLER, Barnacka, Bloom, BRIAN SCHMIDT, BRUCE GENDRE, Brunthaler, Burke-Spolaor, CASEY J. LAW, Chakraborti, Cordes, CORMAC REYNOLDS, Cortes, DALE A. FRAIL, DAVID L. KAPLAN, DAVID M. COWARD, Donalek, DUNCAN K. GALLOWAY, Esquej, Esquej, Falcke, Fiedler, Fielder, Fridman, GEOFFREY C. BOWER, Grupe, Gunn, HAYLEY E. BIGNALL, Heald, Hunstead, INGRID H. STAIRS, JAMES M. CORDES, JAMES R. CURRAN, JAY BANYER, JEAN-PIERRE MACQUART, Johnston, KIRI WAGSTAFF, KITTY K. LO, Komossa, Komossa, Komossa, Körding, Lyutikov, Mahabal, Mahabal, Mahabal, Mahabal, MARK WALKER, MARTIN E. BELL, McClintock, Metzger, NANDA REA, PAUL J. HANCOCK, Pestalozzi, PETER K. G. WILLIAMS, Quinlan, RANDALL B. WAYTH, ROBERT A. CAMERON, ROBERTO SORIA, S. G. DJORGOVSKI, SEAN A. FARRELL, Sesana, SHAMI CHATTERJEE, SIMON JOHNSTON, Soderberg, Spangler, STEVE CROFT, STEVEN J. TINGAY, STUART D. RYDER, T. JOSEPH W. LAZIO, TARA MURPHY, ULF TORKELSSON, UMAA REBBAPRAGADA, Walker, Wang   +76 more
core   +3 more sources

Changing-look AGNs or short-lived radio sources? [PDF]

, 2017
The evolution of extragalactic radio sources has been a fundamental problem in the study of active galactic nuclei for many years. A standard evolutionary model has been created based on observations of a wide range of radio sources.
Hallinan, Gregg, Kunert-Bajraszewska, Magdalena, Mooley, Kunal, Wołowska, Aleksandra   +3 more
core   +4 more sources

Nasu 1.4 GHz Interferometer Transient Radio Source Survey and Improvement in Detection of Radio Sources

Journal of Physics: Conference Series, 2006
We have surveyed 1.4GHz transient radio sources in Nasu Pulsar Observatory. To investigate such sources, both immediacy and accuracy are severely maintained. We have developed Data Transfer System and improved antenna control system. Now we have received the fringe data from transient radio source candidates.
Nobuo Matsumura, Masaya Kuniyoshi, Kazuhiro Takefuji, Kotaro Niinuma, Sumiko Kida, Akihiko Takeuchi, Kuniyuki Asuma, Tsuneaki Daishido   +7 more
openaire   +1 more source

MULTI-MESSENGER ASTRONOMY OF GRAVITATIONAL-WAVE SOURCES WITH FLEXIBLE WIDE-AREA RADIO TRANSIENT SURVEYS [PDF]

The Astrophysical Journal, 2015
We explore opportunities for multi-messenger astronomy using gravitational waves (GWs) and prompt, transient low-frequency radio emission to study highly energetic astrophysical events. We review the literature on possible sources of correlated emission of gravitational waves and radio transients, highlighting proposed mechanisms that lead to a short ...
Cregg C. Yancey, Brandon E. Bear, Bernadine Akukwe, Kevin Chen, Jayce Dowell, Jonathan D. Gough, Jonah Kanner, Michael Kavic, Kenneth Obenberger, Peter Shawhan, John H. Simonetti, Gregory B. Taylor, Jr-Wei Tsai   +12 more
openaire   +3 more sources

Subarcminute Localization of 13 Repeating Fast Radio Bursts Detected by CHIME/FRB

The Astrophysical Journal, 2023
We report on improved sky localizations of 13 repeating fast radio bursts (FRBs) discovered by CHIME/FRB via the use of interferometric techniques on channelized voltages from the telescope.
Daniele Michilli, Mohit Bhardwaj, Charanjot Brar, B. M. Gaensler, Victoria M. Kaspi, Aida Kirichenko, Kiyoshi W. Masui, Ryan Mckinven, Cherry Ng, Chitrang Patel, Ketan R. Sand, Paul Scholz, Kaitlyn Shin, Seth R. Siegel, Ingrid Stairs, Tomas Cassanelli, Amanda M. Cook, Matt Dobbs, Fengqiu Adam Dong, Emmanuel Fonseca, Adaeze Ibik, Jane Kaczmarek, Calvin Leung, Aaron B. Pearlman, Emily Petroff, Ziggy Pleunis, Masoud Rafiei-Ravandi, Pranav Sanghavi, J. Richard Shaw, Shriharsh P. Tendulkar   +29 more
doaj   +1 more source

Limits on Simultaneous and Delayed Optical Emission from Well-localized Fast Radio Bursts

The Astrophysical Journal Letters, 2023
We present the largest compilation to date of optical observations during and following fast radio bursts (FRBs). The data set includes our dedicated simultaneous and follow-up observations, as well as serendipitous archival survey observations, for a ...
Daichi Hiramatsu, Edo Berger, Brian D. Metzger, Sebastian Gomez, Allyson Bieryla, Iair Arcavi, D. Andrew Howell, Ryan Mckinven, Nozomu Tominaga   +8 more
doaj   +1 more source