Results 21 to 30 of about 10,161 (254)

An Injection System for the CHIME/FRB Experiment

The Astronomical Journal, 2023
Dedicated surveys searching for fast radio bursts (FRBs) are subject to selection effects that bias the observed population of events. Software injection systems are one method of correcting for these biases by injecting a mock population of synthetic ...
Marcus Merryfield, Shriharsh P. Tendulkar, Kaitlyn Shin, Bridget Andersen, Alexander Josephy, Deborah Good, Fengqiu Adam Dong, Kiyoshi W. Masui, Dustin Lang, Moritz Münchmeyer, Charanjot Brar, Tomas Cassanelli, Matt Dobbs, Emmanuel Fonseca, Victoria M. Kaspi, Juan Mena-Parra, Ziggy Pleunis, Masoud Rafiei-Ravandi, Ketan R. Sand, Paul Scholz, Kendrick Smith, Ingrid H. Stairs   +21 more
doaj   +1 more source

Inferring the Energy and Distance Distributions of Fast Radio Bursts Using the First CHIME/FRB Catalog

The Astrophysical Journal, 2023
Fast radio bursts (FRBs) are brief, energetic, typically extragalactic flashes of radio emission whose progenitors are largely unknown. Although studying the FRB population is essential for understanding how these astrophysical phenomena occur, such ...
Kaitlyn Shin, Kiyoshi W. Masui, Mohit Bhardwaj, Tomas Cassanelli, Pragya Chawla, Matt Dobbs, Fengqiu Adam Dong, Emmanuel Fonseca, B. M. Gaensler, Antonio Herrera-Martín, Jane Kaczmarek, Victoria Kaspi, Calvin Leung, Marcus Merryfield, Daniele Michilli, Moritz Münchmeyer, Aaron B. Pearlman, Masoud Rafiei-Ravandi, Kendrick Smith, Ingrid Stairs, Shriharsh P. Tendulkar   +20 more
doaj   +1 more source

Temporal and Spectral Properties of the Persistent Radio Source Associated with FRB 20190520B with the VLA

The Astrophysical Journal, 2023
Among more than 800 known fast radio bursts (FRBs), only two, namely FRB 20121102A and FRB 20190520B, are confirmed to be associated with persistent radio sources (PRSs).
Xian Zhang, Wenfei Yu, Casey Law, Di Li, Shami Chatterjee, Paul Demorest, Zhen Yan, Chenhui Niu, Kshitij Aggarwal, Reshma Anna-Thomas, Sarah Burke-Spolaor, Liam Connor, Chao-Wei Tsai, Weiwei Zhu, Gan Luo   +14 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

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

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

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

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

A search for radio pulsars in globular clusters, supernova remnants and transient X-ray sources [PDF]

Monthly Notices of the Royal Astronomical Society, 1996
We present the results of a targeted search for radio pulsars in globular clusters, supernova remnants (SNRs) and transient X-ray sources. 85 globular clusters, 29 SNRs and three transient X-ray sources were observed in the course of the search, during which four pulsars were found. For each object searched, the sensitivity limit is given. The four new
J. D. Biggs, A. G. Lyne
openaire   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

FEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar, Xinqi Yan, Lucas F. Jansen Klomp, Stefano Schivo, Janine N. Post   +4 more
wiley   +1 more source