Evidence of enhanced magnetism in cool, polluted white dwarfs
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F19%3A00107345" target="_blank" >RIV/00216224:14310/19:00107345 - isvavai.cz</a>
Result on the web
<a href="https://academic.oup.com/mnras/article-abstract/482/4/5201/5185103" target="_blank" >https://academic.oup.com/mnras/article-abstract/482/4/5201/5185103</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnras/sty3048" target="_blank" >10.1093/mnras/sty3048</a>
Alternative languages
Result language
angličtina
Original language name
Evidence of enhanced magnetism in cool, polluted white dwarfs
Original language description
We report the discovery of a new, polluted, magnetic white dwarf in the Luyten survey of high-proper motion stars. High-dispersion spectra of NLTT 7547 reveal a complex heavy element line spectrum in a cool (approximate to 5200 K) hydrogen-dominated atmosphere showing the effect of a surface averaged field of 163 kG, consistent with a 240 kG centred dipole, although the actual field structure remains uncertain. The abundance pattern shows the effect of accreted material with a distinct magnesium-rich flavour. Combined with earlier identifications, this discovery supports a correlation between the incidence of magnetism in cool white dwarfs and their contamination by heavy elements.
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
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Monthly Notices of the Royal Astronomical Society
ISSN
0035-8711
e-ISSN
1365-2966
Volume of the periodical
482
Issue of the periodical within the volume
4
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
5201-5210
UT code for WoS article
000462327300067
EID of the result in the Scopus database
2-s2.0-85061083925