Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars: I. The case of HD 101412
- Autores
- Schöller, M.; Pogodin, M. A.; Cahuasquí, J. A.; Drake, N.A.; Hubrig, S.; Petr Gotzens, M. G.; Savanov, I.; Wolff, B.; Gonzalez, Jorge Federico; Mysore, S.; Ilyin, I.; Järvinen, S.; Stelzer, B.
- Año de publicación
- 2016
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- 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.
Fil: Schöller, M.. European Southern Observatory; Alemania
Fil: Pogodin, M. A.. Central Astronomical Observatory at Pulkovo; Rusia
Fil: Cahuasquí, J. A.. Universitat zu Köln; Alemania
Fil: Drake, N.A.. Saint Petersburg State University; Rusia
Fil: Hubrig, S.. Leibniz Institut für Astrophysik Potsdam; Alemania
Fil: Petr Gotzens, M. G.. European Southern Observatory; Alemania
Fil: Savanov, I.. Institute of Astronomy; Rusia
Fil: Wolff, B.. European Southern Observatory; Alemania
Fil: Gonzalez, Jorge Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; Argentina
Fil: Mysore, S.. European Southern Observatory; Alemania
Fil: Ilyin, I.. Leibniz Institut für Astrophysik Potsdam; Alemania
Fil: Järvinen, S.. Leibniz Institut für Astrophysik Potsdam; Alemania
Fil: Stelzer, B.. Istituto Nazionale Di Astrofísica. Osservatorio Astronómico Di Palermo; Italia - Materia
-
ACCRETION, ACCRETION DISKS
STARS: INDIVIDUAL: HD101412
STARS: MAGNETIC FIELD
STARS: PRE-MAIN SEQUENCE - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/63176
Ver los metadatos del registro completo
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Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars: I. The case of HD 101412Schöller, M.Pogodin, M. A.Cahuasquí, J. A.Drake, N.A.Hubrig, S.Petr Gotzens, M. G.Savanov, I.Wolff, B.Gonzalez, Jorge FedericoMysore, S.Ilyin, I.Järvinen, S.Stelzer, B.ACCRETION, ACCRETION DISKSSTARS: INDIVIDUAL: HD101412STARS: MAGNETIC FIELDSTARS: PRE-MAIN SEQUENCEhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Context. 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.Fil: Schöller, M.. European Southern Observatory; AlemaniaFil: Pogodin, M. A.. Central Astronomical Observatory at Pulkovo; RusiaFil: Cahuasquí, J. A.. Universitat zu Köln; AlemaniaFil: Drake, N.A.. Saint Petersburg State University; RusiaFil: Hubrig, S.. Leibniz Institut für Astrophysik Potsdam; AlemaniaFil: Petr Gotzens, M. G.. European Southern Observatory; AlemaniaFil: Savanov, I.. Institute of Astronomy; RusiaFil: Wolff, B.. European Southern Observatory; AlemaniaFil: Gonzalez, Jorge Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; ArgentinaFil: Mysore, S.. European Southern Observatory; AlemaniaFil: Ilyin, I.. Leibniz Institut für Astrophysik Potsdam; AlemaniaFil: Järvinen, S.. Leibniz Institut für Astrophysik Potsdam; AlemaniaFil: Stelzer, B.. Istituto Nazionale Di Astrofísica. Osservatorio Astronómico Di Palermo; ItaliaEDP Sciences2016-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/63176Schöller, M.; Pogodin, M. A.; Cahuasquí, J. A.; Drake, N.A.; Hubrig, S.; et al.; Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars: I. The case of HD 101412; EDP Sciences; Astronomy and Astrophysics; 592; 8-2016; 1-8; A500004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2016/08/aa28361-16/aa28361-16.htmlinfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201628361info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:39:24Zoai:ri.conicet.gov.ar:11336/63176instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:39:25.141CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars: I. The case of HD 101412 |
| title |
Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars: I. The case of HD 101412 |
| spellingShingle |
Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars: I. The case of HD 101412 Schöller, M. ACCRETION, ACCRETION DISKS STARS: INDIVIDUAL: HD101412 STARS: MAGNETIC FIELD STARS: PRE-MAIN SEQUENCE |
| title_short |
Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars: I. The case of HD 101412 |
| title_full |
Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars: I. The case of HD 101412 |
| title_fullStr |
Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars: I. The case of HD 101412 |
| title_full_unstemmed |
Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars: I. The case of HD 101412 |
| title_sort |
Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars: I. The case of HD 101412 |
| dc.creator.none.fl_str_mv |
Schöller, M. Pogodin, M. A. Cahuasquí, J. A. Drake, N.A. Hubrig, S. Petr Gotzens, M. G. Savanov, I. Wolff, B. Gonzalez, Jorge Federico Mysore, S. Ilyin, I. Järvinen, S. Stelzer, B. |
| author |
Schöller, M. |
| author_facet |
Schöller, M. Pogodin, M. A. Cahuasquí, J. A. Drake, N.A. Hubrig, S. Petr Gotzens, M. G. Savanov, I. Wolff, B. Gonzalez, Jorge Federico Mysore, S. Ilyin, I. Järvinen, S. Stelzer, B. |
| author_role |
author |
| author2 |
Pogodin, M. A. Cahuasquí, J. A. Drake, N.A. Hubrig, S. Petr Gotzens, M. G. Savanov, I. Wolff, B. Gonzalez, Jorge Federico Mysore, S. Ilyin, I. Järvinen, S. Stelzer, B. |
| author2_role |
author author author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
ACCRETION, ACCRETION DISKS STARS: INDIVIDUAL: HD101412 STARS: MAGNETIC FIELD STARS: PRE-MAIN SEQUENCE |
| topic |
ACCRETION, ACCRETION DISKS STARS: INDIVIDUAL: HD101412 STARS: MAGNETIC FIELD STARS: PRE-MAIN SEQUENCE |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
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. Fil: Schöller, M.. European Southern Observatory; Alemania Fil: Pogodin, M. A.. Central Astronomical Observatory at Pulkovo; Rusia Fil: Cahuasquí, J. A.. Universitat zu Köln; Alemania Fil: Drake, N.A.. Saint Petersburg State University; Rusia Fil: Hubrig, S.. Leibniz Institut für Astrophysik Potsdam; Alemania Fil: Petr Gotzens, M. G.. European Southern Observatory; Alemania Fil: Savanov, I.. Institute of Astronomy; Rusia Fil: Wolff, B.. European Southern Observatory; Alemania Fil: Gonzalez, Jorge Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio. Universidad Nacional de San Juan. Instituto de Ciencias Astronómicas, de la Tierra y del Espacio; Argentina Fil: Mysore, S.. European Southern Observatory; Alemania Fil: Ilyin, I.. Leibniz Institut für Astrophysik Potsdam; Alemania Fil: Järvinen, S.. Leibniz Institut für Astrophysik Potsdam; Alemania Fil: Stelzer, B.. Istituto Nazionale Di Astrofísica. Osservatorio Astronómico Di Palermo; Italia |
| description |
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. |
| publishDate |
2016 |
| dc.date.none.fl_str_mv |
2016-08 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://hdl.handle.net/11336/63176 Schöller, M.; Pogodin, M. A.; Cahuasquí, J. A.; Drake, N.A.; Hubrig, S.; et al.; Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars: I. The case of HD 101412; EDP Sciences; Astronomy and Astrophysics; 592; 8-2016; 1-8; A50 0004-6361 CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/63176 |
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Schöller, M.; Pogodin, M. A.; Cahuasquí, J. A.; Drake, N.A.; Hubrig, S.; et al.; Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars: I. The case of HD 101412; EDP Sciences; Astronomy and Astrophysics; 592; 8-2016; 1-8; A50 0004-6361 CONICET Digital CONICET |
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eng |
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eng |
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EDP Sciences |
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