Chemically peculiar stars identified in large photometric
surveys

J 2015

Chemically peculiar stars identified in large photometric surveys

PAUNZEN, Ernst, Martin NETOPIL, Klaus BERNHARD a Stefan HUEMMERICH

Základní údaje

Originální název

Chemically peculiar stars identified in large photometric surveys

Autoři

PAUNZEN, Ernst (40 Rakousko, garant, domácí), Martin NETOPIL (40 Rakousko, domácí), Klaus BERNHARD (40 Rakousko) a Stefan HUEMMERICH (276 Německo)

Vydání

Bulgarian Astronomical Journal, Sofia, Institute of Astronomy Bulgarian Academy of Sciences, 2015, 1313-2709

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Bulharsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Kód RIV

RIV/00216224:14310/15:00088053

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000413254600008

Klíčová slova anglicky

Binaries: eclipsing; stars: chemically peculiar; variables: general; techniques: photometric

Štítky

AKR, rivok

Změněno: 23. 4. 2020 12:27, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

The chemically peculiar (CP) stars of the upper main sequence are mainly characterized by strong overabundances of heavy elements. Two subgroups (CP2 and CP4) have strong local magnetic fields which make them interesting targets for astrophysical studies. This star group, in general, is often used for the analysis of stellar formation and evolution in the context of diffusion as well as meridional circulation. The overabundant elements in CP2/4 star atmospheres are concentrated into large spot regions that persist for decades to centuries. Periodic variations of the brightness, spectrum, and magnetic field are observed. The stars are slow rotators and it is believed that the slow rotation is owed to the strong magnetic field. Recent and future surveys that aim to obtain photometric time series are ideally suited to provide a detailed view of the stars' rotational behaviour. We present our efforts to analyze the rotational periods of CP stars and to identify new candidates in the Kepler, SuperWASP, and ASAS-3 surveys, but also in the photometric data that were extracted as valuable by-product of the STEREO satellite mission.

Návaznosti

GP14-26115P, projekt VaV

Název: Vstříc k jednotné škále metalicity pro otevřené hvězdokupy

Investor: Grantová agentura ČR, Vstříc k jednotné škále metalicity pro otevřené hvězdokupy

3SGA5916, interní kód MU

Název: Hvězdy a hvězdokupy v Magellanových mračnech (Akronym: Webda MaC)

Investor: Jihomoravský kraj, Hvězdy a hvězdokupy v Magellanových mračnech, Granty pro zahraniční vědce

Citovat

PAUNZEN, Ernst, Martin NETOPIL, Klaus BERNHARD a Stefan HUEMMERICH. Chemically peculiar stars identified in large photometric surveys. Bulgarian Astronomical Journal. Sofia: Institute of Astronomy Bulgarian Academy of Sciences, 2015, roč. 24, č. 1, s. 97-100. ISSN 1313-2709.

@article{1350548,
   author = {Paunzen, Ernst and Netopil, Martin and Bernhard, Klaus and Huemmerich, Stefan},
   article_location = {Sofia},
   article_number = {1},
   keywords = {Binaries: eclipsing; stars: chemically peculiar; variables: general; techniques: photometric},
   language = {eng},
   issn = {1313-2709},
   journal = {Bulgarian Astronomical Journal},
   title = {Chemically peculiar stars identified in large photometric surveys},
   url = {http://www.astro.bas.bg/AIJ/issues/n24/EPaunzen.pdf},
   volume = {24},
   year = {2015}
}

TY  - JOUR
ID  - 1350548
AU  - Paunzen, Ernst - Netopil, Martin - Bernhard, Klaus - Huemmerich, Stefan
PY  - 2015
TI  - Chemically peculiar stars identified in large photometric surveys
JF  - Bulgarian Astronomical Journal
VL  - 24
IS  - 1
SP  - 97-100
EP  - 97-100
PB  - Institute of Astronomy Bulgarian Academy of Sciences
SN  - 13132709
KW  - Binaries: eclipsing
KW  - stars: chemically peculiar
KW  - variables: general
KW  - techniques: photometric
UR  - http://www.astro.bas.bg/AIJ/issues/n24/EPaunzen.pdf
L2  - http://www.astro.bas.bg/AIJ/issues/n24/EPaunzen.pdf
N2  - The chemically peculiar (CP) stars of the upper main sequence are mainly characterized by strong overabundances of heavy elements. Two subgroups (CP2 and CP4) have strong local magnetic fields which make them interesting targets for astrophysical studies. This star group, in general, is often used for the analysis of stellar formation and evolution in the context of diffusion as well as meridional circulation. The overabundant elements in CP2/4 star atmospheres are concentrated into large spot regions that persist for decades to centuries. Periodic variations of the brightness, spectrum, and magnetic field are observed. The stars are slow rotators and it is believed that the slow rotation is owed to the strong magnetic field. Recent and future surveys that aim to obtain photometric time series are ideally suited to provide a detailed view of the stars' rotational behaviour. We present our efforts to analyze the rotational periods of CP stars and to identify new candidates in the Kepler, SuperWASP, and ASAS-3 surveys, but also in the photometric data that were extracted as valuable by-product of the STEREO satellite mission.
ER  -

PAUNZEN, Ernst, Martin NETOPIL, Klaus BERNHARD a Stefan HUEMMERICH. Chemically peculiar stars identified in large photometric surveys. \textit{Bulgarian Astronomical Journal}. Sofia: Institute of Astronomy Bulgarian Academy of Sciences, 2015, roč.~24, č.~1, s.~97-100. ISSN~1313-2709.

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