X-ray polarization of the black hole X-ray binary 4U 1630-47 challenges the standard thin accretion disk scenario
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F24%3A00585062" target="_blank" >RIV/67985815:_____/24:00585062 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/24:10494057
Result on the web
<a href="https://hdl.handle.net/11104/0353543" target="_blank" >https://hdl.handle.net/11104/0353543</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3847/1538-4357/ad226e" target="_blank" >10.3847/1538-4357/ad226e</a>
Alternative languages
Result language
angličtina
Original language name
X-ray polarization of the black hole X-ray binary 4U 1630-47 challenges the standard thin accretion disk scenario
Original language description
A large energy-dependent X-ray polarization degree is detected by the Imaging X-ray Polarimetry Explorer (IXPE) in the high-soft emission state of the black hole X-ray binary 4U 1630-47. The highly significant detection (at approximate to 50 sigma confidence level) of an unexpectedly high polarization, rising from similar to 6% at 2 keV to similar to 10% at 8 keV, cannot be easily reconciled with standard models of thin accretion disks. In this work, we compare the predictions of different theoretical models with the IXPE data and conclude that the observed polarization properties are compatible with a scenario in which matter accretes onto the black hole through a thin disk covered by a partially ionized atmosphere flowing away at mildly relativistic velocities.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astrophysical Journal
ISSN
0004-637X
e-ISSN
1538-4357
Volume of the periodical
964
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
20
Pages from-to
77
UT code for WoS article
001190906900001
EID of the result in the Scopus database
2-s2.0-85188081835