Results 41 to 50 of about 84,680 (165)

Radio properties of FIRST radio sources at 1 mJy [PDF]

Monthly Notices of the Royal Astronomical Society, 2002
9 pages, 6 figures, to appear in ...
Magliocchetti M, Celotti, Anna Lisa, Danese, Luigi   +2 more
openaire   +3 more sources

An Updated Catalog of Giant Radio Sources [PDF]

The Astrophysical Journal Supplement Series, 2018
Abstract We present a catalog of 349 giant radio sources (GRSs including both galaxies and quasars). The database contains all giants known to date from the literature. These GRSs cover the redshift range of 0.016 < z < 3.22 and include radio sources of projected linear sizes larger than 0.7 Mpc, which extend up to 4.7 Mpc.
Agnieszka Kuźmicz, Marek Jamrozy, Katarzyna Bronarska, Katarzyna Janda-Boczar, D. J. Saikia   +4 more
openaire   +3 more sources

Continued Radio Observations of the Persistent Radio Source Associated with FRB 20190520B Provide Insights into Its Origin

The Astrophysical Journal
Follow-up studies of persistent emission from fast radio burst (FRB) sources are critical for understanding their elusive emission mechanisms and the nature of their progenitors.
Arvind Balasubramanian, Mohit Bhardwaj, Shriharsh P. Tendulkar   +2 more
doaj   +1 more source

A CHIME/FRB Study of Burst Rate and Morphological Evolution of the Periodically Repeating FRB 20180916B

The Astrophysical Journal, 2023
FRB 20180916B is a repeating fast radio burst (FRB) with a 16.3 day periodicity in its activity. In this study, we present morphological properties of 60 FRB 20180916B bursts detected by CHIME/FRB between 2018 August and 2021 December.
Ketan R. Sand, Daniela Breitman, Daniele Michilli, Victoria M. Kaspi, Pragya Chawla, Emmanuel Fonseca, Ryan Mckinven, Kenzie Nimmo, Ziggy Pleunis, Kaitlyn Shin, Bridget C. Andersen, Mohit Bhardwaj, P. J. Boyle, Charanjot Brar, Tomas Cassanelli, Amanda M. Cook, Alice P. Curtin, Fengqiu Adam Dong, Gwendolyn M. Eadie, B. M. Gaensler, Jane Kaczmarek, Adam Lanman, Calvin Leung, Kiyoshi W. Masui, Mubdi Rahman, Ayush Pandhi, Aaron B. Pearlman, Emily Petroff, Masoud Rafiei-Ravandi, Paul Scholz, Vishwangi Shah, Kendrick Smith, Ingrid Stairs, David C. Stenning   +33 more
doaj   +1 more source

3C 236: Radio Source, Interrupted? [PDF]

The Astronomical Journal, 2001
We present new HST STIS/MAMA near-UV images and archival WFPC2 V and R band images which reveal the presence of four star forming regions in an arc along the edge of the dust lane in the giant (4 Mpc) radio galaxy 3C236. Two of the star forming regions are relatively young with ages of order 1E7 yr, while the other two are older with ages of order 1E8 -
O'Dea, Christopher P., Koekemoer, Anton M., Baum, Stefi A., Sparks, William B., Martel, Andre R., Allen, Mark G., Macchetto, Ferdinando D., Miley, George K.   +7 more
openaire   +2 more sources

A Possible Periodic Rotation Measure Evolution in the Repeating FRB 20220529

The Astrophysical Journal Letters
Fast radio bursts (FRBs) are mysterious millisecond-duration radio transients of extragalactic origin. Some of them repeat, while others apparently do not.
Yi-Fang Liang, Ye Li, Zhen-Fan Tang, Xuan Yang, Song-Bo Zhang, Yuan-Pei Yang, Fa-Yin Wang, Bao Wang, Di Xiao, Qing Zhao, Jun-Jie Wei, Jin-Jun Geng, Jia-Rui Niu, Jun-Shuo Zhang, Guo Chen, Min Fang, Xue-Feng Wu, Zi-Gao Dai, Wei-Wei Zhu, Peng Jiang, Bing Zhang   +20 more
doaj   +1 more source

The Optical Properties of Host Galaxies of Radio Sources in the Coma Cluster

Galaxies
We present a comprehensive study of host galaxies of radio sources within the 1.35R200 of the Coma cluster by combining deep 144MHz observations from the LOFAR Two-Metre Sky Survey (LoTSS-DR2) with optical spectroscopy and photometry from DESI and SDSS ...
Xiaolan Hou, Heng Yu, Tong Pan, Hu Zou, Haoran Dou, Emily Moravec, Chengkui Li   +6 more
doaj   +1 more source

A Search for Persistent Radio Sources toward Repeating Fast Radio Bursts Discovered by CHIME/FRB

The Astrophysical Journal
The identification of persistent radio sources (PRSs) coincident with two repeating fast radio bursts (FRBs) supports FRB theories requiring a compact central engine.
Adaeze L. Ibik, Maria R. Drout, B. M. Gaensler, Paul Scholz, Navin Sridhar, Ben Margalit, T. E. Clarke, Casey J. Law, Shriharsh P. Tendulkar, Daniele Michilli, Tarraneh Eftekhari, Mohit Bhardwaj, Sarah Burke-Spolaor, Shami Chatterjee, Amanda M. Cook, Jason W. T. Hessels, Franz Kirsten, Ronniy C. Joseph, Victoria M. Kaspi, Mattias Lazda, Kiyoshi W. Masui, Kenzie Nimmo, Ayush Pandhi, Aaron B. Pearlman, Ziggy Pleunis, Masoud Rafiei-Ravandi, Kaitlyn Shin, Kendrick M. Smith   +27 more
doaj   +1 more source

Quantifying radio source morphology

Publications of the Astronomical Society of Australia
Abstract The advent of next-generation telescope facilities brings with it an unprecedented amount of data, and the demand for effective tools to process and classify this information has become increasingly important. This work proposes a novel approach to quantify the radio galaxy morphology, through the development of a series of algorithmic ...
Lachlan J. Barnes, Andrew M. Hopkins, Lawrence Rudnick, Heinz Andernach, Michael Cowley, Nikhel Gupta, Ray P. Norris, Stanislav S. Shabala, Tayyaba Zafar   +8 more
openaire   +2 more sources

Polarization Characteristics of the Hyperactive FRB 20240114A

The Astrophysical Journal Supplement Series
Fast radio bursts (FRBs) are transient radio bursts of extragalactic origin characterized by millisecond durations and high luminosities. We report on observations of FRB 20240114A conducted with the Robert C.
Jin-Tao Xie, Yi Feng, Di Li, Yong-Kun Zhang, Deng-Ke Zhou, Yuanhong Qu, Xiang-han Cui, Jian-Hua Fang, Jia-Ying Xu, Chen-Chen Miao, Mao Yuan, Chao-Wei Tsai, Pei Wang, Chen-Hui Niu, Xianglei Chen, Mengyao Xue, Junshuo Zhang   +16 more
doaj   +1 more source