Early Stage of Chemically Peculiar Stars

D 2015

Early Stage of Chemically Peculiar Stars

NETOPIL, Martin, Luca FOSSATI, Konstanze ZWINTZ, Ernst PAUNZEN, Stefano BAGNULO et. al.

Základní údaje

Originální název

Early Stage of Chemically Peculiar Stars

Autoři

NETOPIL, Martin (40 Rakousko, domácí), Luca FOSSATI (380 Itálie), Konstanze ZWINTZ (40 Rakousko), Ernst PAUNZEN (40 Rakousko, domácí), Stefano BAGNULO (380 Itálie) a Olga PINTADO (32 Argentina)

Vydání

494. vyd. San Francisco, Physics and Evolution of Magnetic and Related Stars, od s. 148-156, 9 s. 2015

Nakladatel

Astronomical Society of the Pacific

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

10308 Astronomy

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Forma vydání

tištěná verze "print"

Kód RIV

RIV/00216224:14310/15:00081366

Organizační jednotka

Přírodovědecká fakulta

ISBN

978-1-58381-873-2

UT WoS

000366452300018

Klíčová slova anglicky

pre-main-sequence cp stars

Štítky

AKR, rivok

Změněno: 28. 4. 2016 15:14, Ing. Andrea Mikešková

Anotace

V originále

Chemically peculiar stars are known to be the main sequence objects and are characterized by a wide variety of element abundance patterns. They display abundance peculiarities of various chemical elements from helium to mercury in their photospheres. These are explained by the diffusion processes driven by the competition between the radiative levitation and gravitational settling. Current estimates suggest that about 10% of all the stars in the corresponding spectral range (B to F-type) belong to various CP groups. The most populous groups are the metallic line (Am) stars and the magnetic Bp/Ap objects. The reason and the time-scale for the rise of chemical peculiarities is still not known, so is for the role of the magnetic field. The investigation of very young CP stars can help to shed more light on these issues and to test the diffusion theory. However, so far only one pre-main sequence (PMS) Bp star is known. We present here the discovery of a PMS CP candidate, which very probably belongs to the group of Am CP stars.

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

NETOPIL, Martin, Luca FOSSATI, Konstanze ZWINTZ, Ernst PAUNZEN, Stefano BAGNULO a Olga PINTADO. Early Stage of Chemically Peculiar Stars. In Kudryavtsev, D. O.; Balega, Yu. Yu.; Romanyuk, I. I. Physics and Evolution of Magnetic and Related Stars. 494. vyd. San Francisco: Astronomical Society of the Pacific, 2015, s. 148-156. ISBN 978-1-58381-873-2.

@inproceedings{1322379,
   author = {Netopil, Martin and Fossati, Luca and Zwintz, Konstanze and Paunzen, Ernst and Bagnulo, Stefano and Pintado, Olga},
   address = {San Francisco},
   booktitle = {Physics and Evolution of Magnetic and Related Stars},
   edition = {494},
   editor = {Kudryavtsev, D. O.; Balega, Yu. Yu.; Romanyuk, I. I.},
   keywords = {pre-main-sequence cp stars},
   howpublished = {tištěná verze "print"},
   language = {eng},
   location = {San Francisco},
   isbn = {978-1-58381-873-2},
   pages = {148-156},
   publisher = {Astronomical Society of the Pacific},
   title = {Early Stage of Chemically Peculiar Stars},
   year = {2015}
}

TY  - JOUR
ID  - 1322379
AU  - Netopil, Martin - Fossati, Luca - Zwintz, Konstanze - Paunzen, Ernst - Bagnulo, Stefano - Pintado, Olga
PY  - 2015
TI  - Early Stage of Chemically Peculiar Stars
PB  - Astronomical Society of the Pacific
CY  - San Francisco
SN  - 9781583818732
KW  - pre-main-sequence cp stars
N2  - Chemically peculiar stars are known to be the main sequence objects and are characterized by a wide variety of element abundance patterns. They display abundance peculiarities of various chemical elements from helium to mercury in their photospheres. These are explained by the diffusion processes driven by the competition between the radiative levitation and gravitational settling. Current estimates suggest that about 10% of all the stars in the corresponding spectral range (B to F-type) belong to various CP groups. The most populous groups are the metallic line (Am) stars and the magnetic Bp/Ap objects. The reason and the time-scale for the rise of chemical peculiarities is still not known, so is for the role of the magnetic field. The investigation of very young CP stars can help to shed more light on these issues and to test the diffusion theory. However, so far only one pre-main sequence (PMS) Bp star is known. We present here the discovery of a PMS CP candidate, which very probably belongs to the group of Am CP stars.
ER  -

NETOPIL, Martin, Luca FOSSATI, Konstanze ZWINTZ, Ernst PAUNZEN, Stefano BAGNULO a Olga PINTADO. Early Stage of Chemically Peculiar Stars. In Kudryavtsev, D. O.; Balega, Yu. Yu.; Romanyuk, I. I. \textit{Physics and Evolution of Magnetic and Related Stars}. 494. vyd. San Francisco: Astronomical Society of the Pacific, 2015, s.~148-156. ISBN~978-1-58381-873-2.

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