Magnetic Field Studies of Herbig Ae/Be Stars

J 2012

Magnetic Field Studies of Herbig Ae/Be Stars

HUBRIG, S.; M. SCHOELLER; I. ILYIN; M. A. POGODIN; R. V. YUDIN et al.

Základní údaje

Originální název

Magnetic Field Studies of Herbig Ae/Be Stars

Název česky

Studie magnetických polí Herbigových Ae/Be hvězd

Autoři

HUBRIG, S.; M. SCHOELLER; I. ILYIN; M. A. POGODIN; R. V. YUDIN; B. STELZER; C. R. COWLEY a Zdeněk MIKULÁŠEK

Vydání

AIP Conference Proceedings, American Institute of Physics, 2012, 0094-243X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/12:00063301

Organizační jednotka

Přírodovědecká fakulta

DOI

https://doi.org/10.1063/1.3701895

UT WoS

000307648200002

Klíčová slova česky

hvězdy: před hlavní posloupností; hvězdy: atmosféry; hvězdy: magnetické pole; hvězdy: proměnné: obecné

Klíčová slova anglicky

stars: pre-main sequence; stars: atmospheres; stars: magnetic field; stars: variables: general

Štítky

AKR, rivok

Příznaky

Mezinárodní význam

Změněno: 13. 3. 2013 15:52, prof. RNDr. Zdeněk Mikulášek, CSc.

Anotace

V originále

We report on the status of our spectropolarimetric studies of Herbig Ae/Be stars carried out during the last years. For the first time we examined the relation of the measured field strengths with various parameters that characterise the star-disk system. We could show that stronger magnetic fields tend to be found in younger Herbig stars and completely disappear when stars arrive on the ZAMS, indicating that the magnetic fields of Ap/Bp stars are not fossil. New determinations of the mean longitudinal magnetic field for several Herbig Ae/Be stars are presented. The longitudinal magnetic field measurements of MWC 480 reveal the presence of a strong kG field, which was undetected in our previous low-resolution polarimetric observations with FORS 1. The magnetic field geometries of Herbig Ae/Be stars studied with spectropolarimetric time series can likely be described by centred dipoles with polar magnetic field strengths of several hundred Gauss. The sharp-lined young Herbig Ae star HD101412 with a strong surface magnetic field has become in the last years one of the best-studied targets among the Herbig Ae/Be stars.

Citovat

HUBRIG, S.; M. SCHOELLER; I. ILYIN; M. A. POGODIN; R. V. YUDIN; B. STELZER; C. R. COWLEY a Zdeněk MIKULÁŠEK. Magnetic Field Studies of Herbig Ae/Be Stars. AIP Conference Proceedings. American Institute of Physics, 2012, roč. 1429, 05/2012, s. 21-28. ISSN 0094-243X. Dostupné z: https://doi.org/10.1063/1.3701895.

@article{1084413,
   author = {Hubrig, S. and Schoeller, M. and Ilyin, I. and Pogodin, M. A. and Yudin, R. V. and Stelzer, B. and Cowley, C. R. and Mikulášek, Zdeněk},
   article_number = {05/2012},
   doi = {https://doi.org/10.1063/1.3701895},
   keywords = {stars: pre-main sequence; stars: atmospheres; stars: magnetic field; stars: variables: general},
   language = {eng},
   issn = {0094-243X},
   journal = {AIP Conference Proceedings},
   title = {Magnetic Field Studies of Herbig Ae/Be Stars},
   volume = {1429},
   year = {2012}
}

TY  - JOUR
ID  - 1084413
AU  - Hubrig, S. - Schoeller, M. - Ilyin, I. - Pogodin, M. A. - Yudin, R. V. - Stelzer, B. - Cowley, C. R. - Mikulášek, Zdeněk
PY  - 2012
TI  - Magnetic Field Studies of Herbig Ae/Be Stars
JF  - AIP Conference Proceedings
VL  - 1429
IS  - 05/2012
SP  - 21-28
EP  - 21-28
PB  - American Institute of Physics
SN  - 0094243X
KW  - stars: pre-main sequence
KW  - stars: atmospheres
KW  - stars: magnetic field
KW  - stars: variables: general
N2  - We report on the status of our spectropolarimetric studies of Herbig Ae/Be stars carried out during the last years. For the first time we examined the relation of the measured field strengths with various parameters that characterise the star-disk system. We could show that stronger magnetic fields tend to be found in younger Herbig stars and completely disappear when stars arrive on the ZAMS, indicating that the magnetic fields of Ap/Bp stars are not fossil. New determinations of the mean longitudinal magnetic field for several Herbig Ae/Be stars are presented. The longitudinal magnetic field measurements of MWC 480 reveal the presence of a strong kG field, which was undetected in our previous low-resolution polarimetric observations with FORS 1. The magnetic field geometries of Herbig Ae/Be stars studied with spectropolarimetric time series can likely be described by centred dipoles with polar magnetic field strengths of several hundred Gauss. The sharp-lined young Herbig Ae star HD101412 with a strong surface magnetic field has become in the last years one of the best-studied targets among the Herbig Ae/Be stars.
ER  -

HUBRIG, S.; M. SCHOELLER; I. ILYIN; M. A. POGODIN; R. V. YUDIN; B. STELZER; C. R. COWLEY a Zdeněk MIKULÁŠEK. Magnetic Field Studies of Herbig Ae/Be Stars. \textit{AIP Conference Proceedings}. American Institute of Physics, 2012, roč.~1429, 05/2012, s.~21-28. ISSN~0094-243X. Dostupné z: https://doi.org/10.1063/1.3701895.

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