Surface and atmospheric structure on the T Tauri star V2129 Oph

Fred Walter; Ettore Flaccomio; Silvia Alencar; Costanza  Argiroffi; Jerome Bouvier; Jean-Francois Donati; Kosta Getman; Scott Gregory; Gaitee Ara Jaffer Hussain; M Ibrahimov; Moira Mary Jardine; Mairead Skelly

Surface and atmospheric structure on the T Tauri star V2129 Oph

Fred Walter
, Ettore Flaccomio
, Silvia Alencar
, Costanza Argiroffi
, Jerome Bouvier
, Jean-Francois Donati
, Kosta Getman
, Scott Gregory
, Gaitee Ara Jaffer Hussain
, M Ibrahimov
, Moira Mary Jardine
, Mairead Skelly

School of Physics and Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We provide an overview of a multi-wavelength observing campaign focusing on the accretion and coronal processes in the young star V2129 Oph. V2129 Oph is a classical T Tauri star with a 6.5 day rotation period in the ρ Oph star forming region. On 27-29 June 2009 we obtained two 100 ksec Chandra HETG exposures, aiming at opposite hemispheres of the star. We discuss the X-ray data elsewhere. In order to place the coronal X-ray emission in context, we obtained contemporaneous optical and near-IR photometry and high dispersion optical spectroscopy. The photometry shows the existence of dark photospheric spots. The Hα line profiles show a modulation of the mean Hα velocity and the presence of red-shifted absorption, probably from the accretion stream, at certain phases. Zeeman Doppler images reveal the presence of both a cool spot and an accreting region at similar longitudes.

Original language	English
Title of host publication	16th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun
Editors	Christopher M. Johns-Krull, Matthew K. Browning, Andrew A. West
Publisher	Astronomical Society of the Pacific
Pages	755-760
Volume	448
ISBN (Electronic)	978-1-58381-777-3
ISBN (Print)	978-1-58381-776-6
Publication status	Published - 2012
Event	16th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun - Seattle Duration: 28 Aug 2010 → 3 Sept 2010

Conference

Conference	16th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun
City	Seattle
Period	28/08/10 → 3/09/10

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Walter, F., Flaccomio, E., Alencar, S., Argiroffi, C., Bouvier, J., Donati, J.-F., Getman, K., Gregory, S., Hussain, G. A. J., Ibrahimov, M., Jardine, M. M., & Skelly, M. (2012). Surface and atmospheric structure on the T Tauri star V2129 Oph. In C. M. Johns-Krull, M. K. Browning, & A. A. West (Eds.), 16th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (Vol. 448, pp. 755-760). Astronomical Society of the Pacific.

@inproceedings{aa6b248da1684966a1a798a1615543c8,

title = "Surface and atmospheric structure on the T Tauri star V2129 Oph",

abstract = "We provide an overview of a multi-wavelength observing campaign focusing on the accretion and coronal processes in the young star V2129 Oph. V2129 Oph is a classical T Tauri star with a 6.5 day rotation period in the ρ Oph star forming region. On 27-29 June 2009 we obtained two 100 ksec Chandra HETG exposures, aiming at opposite hemispheres of the star. We discuss the X-ray data elsewhere. In order to place the coronal X-ray emission in context, we obtained contemporaneous optical and near-IR photometry and high dispersion optical spectroscopy. The photometry shows the existence of dark photospheric spots. The Hα line profiles show a modulation of the mean Hα velocity and the presence of red-shifted absorption, probably from the accretion stream, at certain phases. Zeeman Doppler images reveal the presence of both a cool spot and an accreting region at similar longitudes.",

author = "Fred Walter and Ettore Flaccomio and Silvia Alencar and Costanza Argiroffi and Jerome Bouvier and Jean-Francois Donati and Kosta Getman and Scott Gregory and Hussain, \{Gaitee Ara Jaffer\} and M Ibrahimov and Jardine, \{Moira Mary\} and Mairead Skelly",

year = "2012",

language = "English",

isbn = "978-1-58381-776-6",

volume = "448",

pages = "755--760",

editor = "Johns-Krull, \{Christopher M.\} and Browning, \{Matthew K.\} and West, \{Andrew A.\}",

booktitle = "16th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun",

publisher = "Astronomical Society of the Pacific",

note = "16th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun ; Conference date: 28-08-2010 Through 03-09-2010",

}

Walter, F, Flaccomio, E, Alencar, S, Argiroffi, C, Bouvier, J, Donati, J-F, Getman, K, Gregory, S, Hussain, GAJ, Ibrahimov, M, Jardine, MM & Skelly, M 2012, Surface and atmospheric structure on the T Tauri star V2129 Oph. in CM Johns-Krull, MK Browning & AA West (eds), 16th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun. vol. 448, Astronomical Society of the Pacific, pp. 755-760, 16th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun, Seattle, 28/08/10.

Surface and atmospheric structure on the T Tauri star V2129 Oph. / Walter, Fred; Flaccomio, Ettore; Alencar, Silvia et al.
16th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun. ed. / Christopher M. Johns-Krull; Matthew K. Browning; Andrew A. West. Vol. 448 Astronomical Society of the Pacific, 2012. p. 755-760.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Surface and atmospheric structure on the T Tauri star V2129 Oph

AU - Walter, Fred

AU - Flaccomio, Ettore

AU - Alencar, Silvia

AU - Argiroffi, Costanza

AU - Bouvier, Jerome

AU - Donati, Jean-Francois

AU - Getman, Kosta

AU - Gregory, Scott

AU - Hussain, Gaitee Ara Jaffer

AU - Ibrahimov, M

AU - Jardine, Moira Mary

AU - Skelly, Mairead

PY - 2012

Y1 - 2012

N2 - We provide an overview of a multi-wavelength observing campaign focusing on the accretion and coronal processes in the young star V2129 Oph. V2129 Oph is a classical T Tauri star with a 6.5 day rotation period in the ρ Oph star forming region. On 27-29 June 2009 we obtained two 100 ksec Chandra HETG exposures, aiming at opposite hemispheres of the star. We discuss the X-ray data elsewhere. In order to place the coronal X-ray emission in context, we obtained contemporaneous optical and near-IR photometry and high dispersion optical spectroscopy. The photometry shows the existence of dark photospheric spots. The Hα line profiles show a modulation of the mean Hα velocity and the presence of red-shifted absorption, probably from the accretion stream, at certain phases. Zeeman Doppler images reveal the presence of both a cool spot and an accreting region at similar longitudes.

AB - We provide an overview of a multi-wavelength observing campaign focusing on the accretion and coronal processes in the young star V2129 Oph. V2129 Oph is a classical T Tauri star with a 6.5 day rotation period in the ρ Oph star forming region. On 27-29 June 2009 we obtained two 100 ksec Chandra HETG exposures, aiming at opposite hemispheres of the star. We discuss the X-ray data elsewhere. In order to place the coronal X-ray emission in context, we obtained contemporaneous optical and near-IR photometry and high dispersion optical spectroscopy. The photometry shows the existence of dark photospheric spots. The Hα line profiles show a modulation of the mean Hα velocity and the presence of red-shifted absorption, probably from the accretion stream, at certain phases. Zeeman Doppler images reveal the presence of both a cool spot and an accreting region at similar longitudes.

UR - http://aspbooks.org/custom/publications/paper/448-0755.html

M3 - Conference contribution

SN - 978-1-58381-776-6

VL - 448

SP - 755

EP - 760

BT - 16th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun

A2 - Johns-Krull, Christopher M.

A2 - Browning, Matthew K.

A2 - West, Andrew A.

PB - Astronomical Society of the Pacific

T2 - 16th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun

Y2 - 28 August 2010 through 3 September 2010

ER -

Surface and atmospheric structure on the T Tauri star V2129 Oph

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Astrophysics in St Andrews: Astrophysics in St Andrews / SUPA (Continuan of Rolling Grant - XPP089

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Surface and atmospheric structure on the T Tauri star V2129 Oph

Abstract

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Astrophysics in St Andrews: Astrophysics in St Andrews / SUPA (Continuan of Rolling Grant - XPP089

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