Periodicity of sub-pulses in a radio pulsar

Tian, Peng-Fu; Zhang, Ping; Yang, Wen; Wang, Wei; Wang, Pei

doi:10.1016/j.jheap.2024.03.002

Journal of High Energy Astrophysics

2024

DOI: 10.1016/j.jheap.2024.03.002

|View full text |Cite

Periodicity of sub-pulses in a radio pulsar

Peng-Fu Tian,

Ping Zhang,

Wen Yang

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 77 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Observations of Fast Radio Variations in Microquasars by FAST

Wang 王

2024

Chinese Phys. Lett.

View full text Add to dashboard Cite

Microquasars are the compact objects generally including accreting black holes which produce relativistic jets. The physical mechanisms of jet launching, collimation, and acceleration are poorly understood. Microquasars show strong variability in multi-wavelength observations. In X-rays, the sources show the fast variation features down to millisecond time scales, with the prominent quasiperiodic oscillations (QPOs) around 0.1 Hz - tens of Hz in light curves, however, physical origin of QPOs is still uncertain. FAST as the largest radio telescope provides the opportunity to study fast variability of both radio flux and polarization in microquasars. In the FAST observations from 2020 - 2022, we reported the first evidence of radio subsecond quasi-periodic oscillations of GRS 1915+105, providing the direct link between QPOs and the dynamics of relativistic jets. These QPOs with the centroid frequency around 5 Hz are transient, accompanied with strong evolution of the spectral index. Combined with multiwavelength observations, we discuss the possible physical models to produce radio QPOs in BH systems: the helical motion of jet knots or precession of the jet base. In near future, high time resolution radio monitoring of microquasars based on FAST is expected to discover more new phenomena in black hole systems, which will be important to understand the physics in strong gravity.

show abstract

Observations of Fast Radio Variations in Microquasars by FAST

Wang 王

2024

Chinese Phys. Lett.

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Periodicity of sub-pulses in a radio pulsar

Cited by 1 publication

References 77 publications

Observations of Fast Radio Variations in Microquasars by FAST

Observations of Fast Radio Variations in Microquasars by FAST

Contact Info

Product

Resources

About