Proper Motion and Natal Kick in the Galactic Black Hole X-Ray Binary AT2019wey Article Swipe
Lang Cui
,
Pengfei Jiang
,
Tao An
,
Hongmin Cao
,
Ning Chang
,
Giulia Migliori
,
M. Giroletti
,
S. Frey
,
Jun Yang
,
K. É. Gabányi
,
Xiaoyu Hong
,
Wenda Zhang
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3847/1538-4357/adc0f7
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3847/1538-4357/adc0f7
Understanding the formation mechanisms of stellar-mass black hole X-ray binaries (BHXBs) remains a fundamental challenge in astrophysics. The natal kick velocities imparted during black hole (BH) formation provide crucial constraints on these formation channels. In this work, we present a new-epoch very long baseline interferometry (VLBI) observation of the Galactic BHXB AT2019wey carried out in 2023. Combining with archival VLBI data from 2020, we successfully measure the proper motion of AT2019wey over a 3 yr timescale, namely, 0.78 ± 0.12 mas yr −1 in R.A. and −0.42 ± 0.07 mas yr −1 in decl. Employing the measured proper motion, we estimate its peculiar velocity and the potential kick velocity (PKV) through Monte Carlo simulations, incorporating uncertainties of its distance and radial velocity. The estimated PKV distributions and height above the Galactic plane suggest that AT2019wey’s BH likely formed through a supernova explosion rather than direct collapse.
Related Topics
Concepts
Physics
Astrophysics
Binary number
Motion (physics)
X-ray binary
Astronomy
Proper motion
Black hole (networking)
Binary black hole
Classical mechanics
Neutron star
Stars
Gravitational wave
Computer network
Arithmetic
Routing protocol
Mathematics
Computer science
Routing (electronic design automation)
Link-state routing protocol
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3847/1538-4357/adc0f7
- https://iopscience.iop.org/article/10.3847/1538-4357/adc0f7/pdf
- OA Status
- gold
- References
- 45
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4409509652
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4409509652Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.3847/1538-4357/adc0f7Digital Object Identifier
- Title
-
Proper Motion and Natal Kick in the Galactic Black Hole X-Ray Binary AT2019weyWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2025Year of publication
- Publication date
-
2025-04-16Full publication date if available
- Authors
-
Lang Cui, Pengfei Jiang, Tao An, Hongmin Cao, Ning Chang, Giulia Migliori, M. Giroletti, S. Frey, Jun Yang, K. É. Gabányi, Xiaoyu Hong, Wenda ZhangList of authors in order
- Landing page
-
https://doi.org/10.3847/1538-4357/adc0f7Publisher landing page
- PDF URL
-
https://iopscience.iop.org/article/10.3847/1538-4357/adc0f7/pdfDirect link to full text PDF
- Open access
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YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
-
https://iopscience.iop.org/article/10.3847/1538-4357/adc0f7/pdfDirect OA link when available
- Concepts
-
Physics, Astrophysics, Binary number, Motion (physics), X-ray binary, Astronomy, Proper motion, Black hole (networking), Binary black hole, Classical mechanics, Neutron star, Stars, Gravitational wave, Computer network, Arithmetic, Routing protocol, Mathematics, Computer science, Routing (electronic design automation), Link-state routing protocolTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
0Total citation count in OpenAlex
- References (count)
-
45Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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