Standard

Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars : I. The case of HD 101412. / Schöller, M.; Pogodin, M. A.; Cahuasquí, J. A.; Drake, N. A.; Hubrig, S.; Petr-Gotzens, M. G.; Savanov, I. S.; Wolff, B.; González, J. F.; Mysore, S.; Ilyin, I.; Järvinen, S. P.; Stelzer, B.

In: Astronomy and Astrophysics, Vol. 592, A50, 01.08.2016.

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

Harvard

Schöller, M, Pogodin, MA, Cahuasquí, JA, Drake, NA, Hubrig, S, Petr-Gotzens, MG, Savanov, IS, Wolff, B, González, JF, Mysore, S, Ilyin, I, Järvinen, SP & Stelzer, B 2016, 'Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars: I. The case of HD 101412', Astronomy and Astrophysics, vol. 592, A50. https://doi.org/10.1051/0004-6361/201628361, https://doi.org/10.1051/0004-6361/201628361

APA

Schöller, M., Pogodin, M. A., Cahuasquí, J. A., Drake, N. A., Hubrig, S., Petr-Gotzens, M. G., Savanov, I. S., Wolff, B., González, J. F., Mysore, S., Ilyin, I., Järvinen, S. P., & Stelzer, B. (2016). Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars: I. The case of HD 101412. Astronomy and Astrophysics, 592, [A50]. https://doi.org/10.1051/0004-6361/201628361, https://doi.org/10.1051/0004-6361/201628361

Vancouver

Schöller M, Pogodin MA, Cahuasquí JA, Drake NA, Hubrig S, Petr-Gotzens MG et al. Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars: I. The case of HD 101412. Astronomy and Astrophysics. 2016 Aug 1;592. A50. https://doi.org/10.1051/0004-6361/201628361, https://doi.org/10.1051/0004-6361/201628361

Author

Schöller, M. ; Pogodin, M. A. ; Cahuasquí, J. A. ; Drake, N. A. ; Hubrig, S. ; Petr-Gotzens, M. G. ; Savanov, I. S. ; Wolff, B. ; González, J. F. ; Mysore, S. ; Ilyin, I. ; Järvinen, S. P. ; Stelzer, B. / Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars : I. The case of HD 101412. In: Astronomy and Astrophysics. 2016 ; Vol. 592.

BibTeX

@article{911bb80ba1c049688e149d3695926697,
title = "Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars: I. The case of HD 101412",
abstract = "Context. Models of magnetically-driven accretion and outflows reproduce many observational properties of T Tauri stars. This concept is not well established for the more massive Herbig Ae/Be stars. Aims. We intend to examine the magnetospheric accretion in Herbig Ae/Be stars and search for rotational modulation using spectroscopic signatures, in this first paper concentrating on the well-studied Herbig Ae star HD 101412. Methods. We used near-infrared spectroscopic observations of the magnetic Herbig Ae star HD 101412 to test the magnetospheric character of its accretion disk/star interaction. We reduced and analyzed 30 spectra of HD 101412, acquired with the CRIRES and X-shooter spectrographs installed at the VLT (ESO, Chile). The spectroscopic analysis was based on the He iλ10 830 and Paγ lines, formed in the accretion region. Results. We found that the temporal behavior of these diagnostic lines in the near-infrared spectra of HD 101412 can be explained by rotational modulation of line profiles generated by accreting gas with a period P = 20d.53 ± 1d.68. The discovery of this period, about half of the magnetic rotation period Pm = 42d.076 previously determined from measurements of the mean longitudinal magnetic field, indicates that the accreted matter falls onto the star in regions close to the magnetic poles intersecting the line-of-sight two times during the rotation cycle. We intend to apply this method to a larger sample of Herbig Ae/Be stars.",
keywords = "Accretion, accretion disks, Stars: individual: HD101412, Stars: magnetic field, Stars: pre-main sequence",
author = "M. Sch{\"o}ller and Pogodin, {M. A.} and Cahuasqu{\'i}, {J. A.} and Drake, {N. A.} and S. Hubrig and Petr-Gotzens, {M. G.} and Savanov, {I. S.} and B. Wolff and Gonz{\'a}lez, {J. F.} and S. Mysore and I. Ilyin and J{\"a}rvinen, {S. P.} and B. Stelzer",
note = "Funding Information: We would like to thank the ESO education and Public Outreach Department and especially Mafalda Martins for providing Fig. 6. This work was supported by the Basic Research Program of the Presidium of the Russian Academy of Sciences P-41 and the Program of the Department of Physical Sciences of the Russian Academy of Sciences P-17. N.A.D. acknowledges the support of FAPERJ, Rio de Janeiro, Brazil, for Visiting Researcher grant E-26/200.128/2015 and the St. Petersburg State University for research grant 6.38.18.2014. Publisher Copyright: {\textcopyright} 2016 ESO. Copyright: Copyright 2016 Elsevier B.V., All rights reserved.",
year = "2016",
month = aug,
day = "1",
doi = "10.1051/0004-6361/201628361",
language = "English",
volume = "592",
journal = "ASTRONOMY & ASTROPHYSICS",
issn = "0004-6361",
publisher = "EDP Sciences",

}

RIS

TY - JOUR

T1 - Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars

T2 - I. The case of HD 101412

AU - Schöller, M.

AU - Pogodin, M. A.

AU - Cahuasquí, J. A.

AU - Drake, N. A.

AU - Hubrig, S.

AU - Petr-Gotzens, M. G.

AU - Savanov, I. S.

AU - Wolff, B.

AU - González, J. F.

AU - Mysore, S.

AU - Ilyin, I.

AU - Järvinen, S. P.

AU - Stelzer, B.

N1 - Funding Information: We would like to thank the ESO education and Public Outreach Department and especially Mafalda Martins for providing Fig. 6. This work was supported by the Basic Research Program of the Presidium of the Russian Academy of Sciences P-41 and the Program of the Department of Physical Sciences of the Russian Academy of Sciences P-17. N.A.D. acknowledges the support of FAPERJ, Rio de Janeiro, Brazil, for Visiting Researcher grant E-26/200.128/2015 and the St. Petersburg State University for research grant 6.38.18.2014. Publisher Copyright: © 2016 ESO. Copyright: Copyright 2016 Elsevier B.V., All rights reserved.

PY - 2016/8/1

Y1 - 2016/8/1

N2 - Context. Models of magnetically-driven accretion and outflows reproduce many observational properties of T Tauri stars. This concept is not well established for the more massive Herbig Ae/Be stars. Aims. We intend to examine the magnetospheric accretion in Herbig Ae/Be stars and search for rotational modulation using spectroscopic signatures, in this first paper concentrating on the well-studied Herbig Ae star HD 101412. Methods. We used near-infrared spectroscopic observations of the magnetic Herbig Ae star HD 101412 to test the magnetospheric character of its accretion disk/star interaction. We reduced and analyzed 30 spectra of HD 101412, acquired with the CRIRES and X-shooter spectrographs installed at the VLT (ESO, Chile). The spectroscopic analysis was based on the He iλ10 830 and Paγ lines, formed in the accretion region. Results. We found that the temporal behavior of these diagnostic lines in the near-infrared spectra of HD 101412 can be explained by rotational modulation of line profiles generated by accreting gas with a period P = 20d.53 ± 1d.68. The discovery of this period, about half of the magnetic rotation period Pm = 42d.076 previously determined from measurements of the mean longitudinal magnetic field, indicates that the accreted matter falls onto the star in regions close to the magnetic poles intersecting the line-of-sight two times during the rotation cycle. We intend to apply this method to a larger sample of Herbig Ae/Be stars.

AB - Context. Models of magnetically-driven accretion and outflows reproduce many observational properties of T Tauri stars. This concept is not well established for the more massive Herbig Ae/Be stars. Aims. We intend to examine the magnetospheric accretion in Herbig Ae/Be stars and search for rotational modulation using spectroscopic signatures, in this first paper concentrating on the well-studied Herbig Ae star HD 101412. Methods. We used near-infrared spectroscopic observations of the magnetic Herbig Ae star HD 101412 to test the magnetospheric character of its accretion disk/star interaction. We reduced and analyzed 30 spectra of HD 101412, acquired with the CRIRES and X-shooter spectrographs installed at the VLT (ESO, Chile). The spectroscopic analysis was based on the He iλ10 830 and Paγ lines, formed in the accretion region. Results. We found that the temporal behavior of these diagnostic lines in the near-infrared spectra of HD 101412 can be explained by rotational modulation of line profiles generated by accreting gas with a period P = 20d.53 ± 1d.68. The discovery of this period, about half of the magnetic rotation period Pm = 42d.076 previously determined from measurements of the mean longitudinal magnetic field, indicates that the accreted matter falls onto the star in regions close to the magnetic poles intersecting the line-of-sight two times during the rotation cycle. We intend to apply this method to a larger sample of Herbig Ae/Be stars.

KW - Accretion, accretion disks

KW - Stars: individual: HD101412

KW - Stars: magnetic field

KW - Stars: pre-main sequence

UR - http://www.scopus.com/inward/record.url?scp=84979505704&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/201628361

DO - 10.1051/0004-6361/201628361

M3 - Article

VL - 592

JO - ASTRONOMY & ASTROPHYSICS

JF - ASTRONOMY & ASTROPHYSICS

SN - 0004-6361

M1 - A50

ER -

ID: 7626478