What’s New with Landstreet’s Star HD 37776 (V901 Ori)?
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F20%3A00114587" target="_blank" >RIV/00216224:14310/20:00114587 - isvavai.cz</a>
Result on the web
<a href="https://www.pta.edu.pl/proc/v11p46" target="_blank" >https://www.pta.edu.pl/proc/v11p46</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
What’s New with Landstreet’s Star HD 37776 (V901 Ori)?
Original language description
HD 37776 (V901 Ori, B2 Vp), also known as Landstreet's Star, is possibly the most remarkable magnetic chemically peculiar (mCP) star known. Zeeman Doppler Imaging revealed this young, rapidly rotating star's surface magnetic field to be not only the strongest (about 30 kG) of the He-strong class of hot mCP stars but also by far the most topologically complex. In contrast to the overwhelming majority of mCP stars, which are well described by tilted dipoles, Landstreet's Star's non-axisymmetric surface magnetic field is entirely dominated by high-order spherical harmonics. It is one of the handfuls of stars for which rotational period change has been measured, and over the past two decades of monitoring, the object has demonstrated an unexpected acceleration in its rotation that so far defies explanation. Recently acquired TESS data have provided a photometric data set of unprecedented precision. These data have revealed a highly stable yet multi-featured light curve, making Landstreet’s Star the prototype of hot mCP stars whose light curves are difficult to reproduce using the standard model of chemical/photometric spots modulated by solid-body rotation.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
<a href="/en/project/GA18-05665S" target="_blank" >GA18-05665S: Mass-loss in evolved massive stars</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the Polish Astronomical Society
ISBN
9788395043093
ISSN
2545-1022
e-ISSN
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Number of pages
8
Pages from-to
46-53
Publisher name
Polskie Towarzystwo Astronomiczne
Place of publication
Warzsawa, Poland
Event location
Canada
Event date
Jul 8, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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