Magnetic Fields of CP Stars in the Orion OB1 Association. V. Stars of Subgroups (c) and (d)

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Magnetic Fields of CP Stars in the Orion OB1 Association. V. Stars of Subgroups (c) and (d). / Romanyuk, I. I.; Semenko, E. A.; Moiseeva, A. V.; Yakunin, I. A.; Kudryavtsev, D. O.

In: Astrophysical Bulletin, Vol. 76, No. 2, 13.07.2021, p. 163-184.

Research output: Contribution to journal › Article › peer-review

Author

Romanyuk, I. I. ; Semenko, E. A. ; Moiseeva, A. V. ; Yakunin, I. A. ; Kudryavtsev, D. O. / Magnetic Fields of CP Stars in the Orion OB1 Association. V. Stars of Subgroups (c) and (d). In: Astrophysical Bulletin. 2021 ; Vol. 76, No. 2. pp. 163-184.

BibTeX

@article{0da0524d87e64173b51baa705c780f09,

title = "Magnetic Fields of CP Stars in the Orion OB1 Association. V. Stars of Subgroups (c) and (d)",

abstract = "The paper presents the results of magnetic field measurements of 27 chemically peculiar stars in subgroups (c) and (d) of the Orion OB1 association. In total, more than 140 circularly polarized spectra were obtained and measured in the period from 2013 to 2020. An analysis of the results showed that 13 out of 24 CP stars in subgroup (c) have a magnetic field. At the same time, no field of a significant strength was found in any of the three CP stars in subgroup (d). We found that the occurrence of magnetic stars in subgroup (c), whose average age is approximately 5 Myr, lies in the middle between the occurrence of magnetic stars in subgroups (a) with an age of 10 Myr and (b), whose age is about 2 Myr. Our results indicate a sharp decrease in the occurrence of magnetic CP stars and a simultaneous decrease in their magnetic field with age. The data obtained with the example of the Orion OB1 association generally support the theory of the fossil origin of the magnetic field of chemically peculiar stars; however, the process of the field formation itself can have a number of features manifesting observationally.",

keywords = "stars: chemically peculiar, stars: magnetic field, CHEMICALLY PECULIAR STARS, CATALOG, AP",

author = "Romanyuk, {I. I.} and Semenko, {E. A.} and Moiseeva, {A. V.} and Yakunin, {I. A.} and Kudryavtsev, {D. O.}",

note = "Publisher Copyright: {\textcopyright} 2021, Pleiades Publishing, Ltd.",

year = "2021",

month = jul,

day = "13",

doi = "10.1134/S1990341321020085",

language = "English",

volume = "76",

pages = "163--184",

journal = "Astrophysical Bulletin",

issn = "1990-3413",

publisher = "МАИК {"}Наука/Интерпериодика{"}",

number = "2",

}

RIS

TY - JOUR

T1 - Magnetic Fields of CP Stars in the Orion OB1 Association. V. Stars of Subgroups (c) and (d)

AU - Romanyuk, I. I.

AU - Semenko, E. A.

AU - Moiseeva, A. V.

AU - Yakunin, I. A.

AU - Kudryavtsev, D. O.

PY - 2021/7/13

Y1 - 2021/7/13

N2 - The paper presents the results of magnetic field measurements of 27 chemically peculiar stars in subgroups (c) and (d) of the Orion OB1 association. In total, more than 140 circularly polarized spectra were obtained and measured in the period from 2013 to 2020. An analysis of the results showed that 13 out of 24 CP stars in subgroup (c) have a magnetic field. At the same time, no field of a significant strength was found in any of the three CP stars in subgroup (d). We found that the occurrence of magnetic stars in subgroup (c), whose average age is approximately 5 Myr, lies in the middle between the occurrence of magnetic stars in subgroups (a) with an age of 10 Myr and (b), whose age is about 2 Myr. Our results indicate a sharp decrease in the occurrence of magnetic CP stars and a simultaneous decrease in their magnetic field with age. The data obtained with the example of the Orion OB1 association generally support the theory of the fossil origin of the magnetic field of chemically peculiar stars; however, the process of the field formation itself can have a number of features manifesting observationally.

AB - The paper presents the results of magnetic field measurements of 27 chemically peculiar stars in subgroups (c) and (d) of the Orion OB1 association. In total, more than 140 circularly polarized spectra were obtained and measured in the period from 2013 to 2020. An analysis of the results showed that 13 out of 24 CP stars in subgroup (c) have a magnetic field. At the same time, no field of a significant strength was found in any of the three CP stars in subgroup (d). We found that the occurrence of magnetic stars in subgroup (c), whose average age is approximately 5 Myr, lies in the middle between the occurrence of magnetic stars in subgroups (a) with an age of 10 Myr and (b), whose age is about 2 Myr. Our results indicate a sharp decrease in the occurrence of magnetic CP stars and a simultaneous decrease in their magnetic field with age. The data obtained with the example of the Orion OB1 association generally support the theory of the fossil origin of the magnetic field of chemically peculiar stars; however, the process of the field formation itself can have a number of features manifesting observationally.

KW - stars: chemically peculiar

KW - stars: magnetic field

KW - CHEMICALLY PECULIAR STARS

KW - CATALOG

KW - AP

UR - http://www.scopus.com/inward/record.url?scp=85110759732&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/31d63808-b1d9-3606-8c58-70c3bb8dd3b6/

U2 - 10.1134/S1990341321020085

DO - 10.1134/S1990341321020085

M3 - Article

AN - SCOPUS:85110759732

VL - 76

SP - 163

EP - 184

JO - Astrophysical Bulletin

JF - Astrophysical Bulletin

SN - 1990-3413

IS - 2

ER -

ID: 88225288