Accretion and outflow-related X-rays in T Tauri stars

Manuel Güdel; Kevin Briggs; Kaspar Arzner; Marc Audard; Jérôme Bouvier; Catherine Dougados; Eric Feigelson; Elena Franciosini; Adrian Glauser; Nicolas Grosso; Sylvain Guieu; François Ménard; Giusi Micela; Jean Louis Monin; Thierry Montmerle; Deborah Padgett; Francesco Palla; Ignazio Pillitteri; Thomas Preibisch; Luisa Rebull; Luigi Scelsi; Bruno Silva; Stephen Skinner; Beate Stelzer; Alessandra Telleschi

doi:10.1017/S1743921307009519

Luigi Scelsi, Bruno Silva, Stephen Skinner, Beate Stelzer, Alessandra Telleschi

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Abstract

Abstract We report on accretion- and outflow-related X-rays from T Tauri stars, based on results from the XMM-Newton Extended Survey of the Taurus Molecular Cloud. X-rays potentially form in shocks of accretion streams near the stellar surface, although we hypothesize that direct interactions between the streams and magnetic coronae may occur as well. We report on the discovery of a soft excess in accreting T Tauri stars supporting these scenarios. We further discuss a new type of X-ray source in jet-driving T Tauri stars. It shows a strongly absorbed coronal component and a very soft, weakly absorbed component probably related to shocks in microjets. The excessive coronal absorption points to dust-depletion in the accretion streams.

Original language	English (US)
Pages (from-to)	155-162
Number of pages	8
Journal	Proceedings of the International Astronomical Union
Volume	3
Issue number	1 S243
DOIs	https://doi.org/10.1017/S1743921307009519
State	Published - Aug 2007

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.1017/S1743921307009519

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Güdel, M., Briggs, K., Arzner, K., Audard, M., Bouvier, J., Dougados, C., Feigelson, E., Franciosini, E., Glauser, A., Grosso, N., Guieu, S., Ménard, F., Micela, G., Monin, J. L., Montmerle, T., Padgett, D., Palla, F., Pillitteri, I., Preibisch, T., ... Telleschi, A. (2007). Accretion and outflow-related X-rays in T Tauri stars. Proceedings of the International Astronomical Union, 3(1 S243), 155-162. https://doi.org/10.1017/S1743921307009519

@article{15d43edf140d413ba007cb911089d401,

title = "Accretion and outflow-related X-rays in T Tauri stars",

abstract = "Abstract We report on accretion- and outflow-related X-rays from T Tauri stars, based on results from the XMM-Newton Extended Survey of the Taurus Molecular Cloud. X-rays potentially form in shocks of accretion streams near the stellar surface, although we hypothesize that direct interactions between the streams and magnetic coronae may occur as well. We report on the discovery of a soft excess in accreting T Tauri stars supporting these scenarios. We further discuss a new type of X-ray source in jet-driving T Tauri stars. It shows a strongly absorbed coronal component and a very soft, weakly absorbed component probably related to shocks in microjets. The excessive coronal absorption points to dust-depletion in the accretion streams.",

author = "Manuel G{\"u}del and Kevin Briggs and Kaspar Arzner and Marc Audard and J{\'e}r{\^o}me Bouvier and Catherine Dougados and Eric Feigelson and Elena Franciosini and Adrian Glauser and Nicolas Grosso and Sylvain Guieu and Fran{\c c}ois M{\'e}nard and Giusi Micela and Monin, \{Jean Louis\} and Thierry Montmerle and Deborah Padgett and Francesco Palla and Ignazio Pillitteri and Thomas Preibisch and Luisa Rebull and Luigi Scelsi and Bruno Silva and Stephen Skinner and Beate Stelzer and Alessandra Telleschi",

note = "Funding Information: This work has been supported by the International Space Science Institute in Bern, the Swiss National Science Foundation (AT, MA, MG: grants 20-66875.01, 20-109255/1, PP002–110504), ASI/INAF (Palermo group, grant ASI-INAF I/023/05/0), and NASA (MA, SS, DP: grants NNG05GF92G, GO6-7003). This research is based on observations obtained with XMM-Newton, an ESA science mission with instruments and contributions directly funded by ESA member states and the USA (NASA). The CXC X-ray Observatory Center is operated by the Smithsonian Astrophysical Observatory for and on behalf of the NASA under contract NAS8-03060.",

year = "2007",

month = aug,

doi = "10.1017/S1743921307009519",

language = "English (US)",

volume = "3",

pages = "155--162",

journal = "Proceedings of the International Astronomical Union",

issn = "1743-9213",

publisher = "Cambridge University Press",

number = "1 S243",

}

Güdel, M, Briggs, K, Arzner, K, Audard, M, Bouvier, J, Dougados, C, Feigelson, E, Franciosini, E, Glauser, A, Grosso, N, Guieu, S, Ménard, F, Micela, G, Monin, JL, Montmerle, T, Padgett, D, Palla, F, Pillitteri, I, Preibisch, T, Rebull, L, Scelsi, L, Silva, B, Skinner, S, Stelzer, B & Telleschi, A 2007, 'Accretion and outflow-related X-rays in T Tauri stars', Proceedings of the International Astronomical Union, vol. 3, no. 1 S243, pp. 155-162. https://doi.org/10.1017/S1743921307009519

TY - JOUR

T1 - Accretion and outflow-related X-rays in T Tauri stars

AU - Güdel, Manuel

AU - Briggs, Kevin

AU - Arzner, Kaspar

AU - Audard, Marc

AU - Bouvier, Jérôme

AU - Dougados, Catherine

AU - Feigelson, Eric

AU - Franciosini, Elena

AU - Glauser, Adrian

AU - Grosso, Nicolas

AU - Guieu, Sylvain

AU - Ménard, François

AU - Micela, Giusi

AU - Monin, Jean Louis

AU - Montmerle, Thierry

AU - Padgett, Deborah

AU - Palla, Francesco

AU - Pillitteri, Ignazio

AU - Preibisch, Thomas

AU - Rebull, Luisa

AU - Scelsi, Luigi

AU - Silva, Bruno

AU - Skinner, Stephen

AU - Stelzer, Beate

AU - Telleschi, Alessandra

N1 - Funding Information: This work has been supported by the International Space Science Institute in Bern, the Swiss National Science Foundation (AT, MA, MG: grants 20-66875.01, 20-109255/1, PP002–110504), ASI/INAF (Palermo group, grant ASI-INAF I/023/05/0), and NASA (MA, SS, DP: grants NNG05GF92G, GO6-7003). This research is based on observations obtained with XMM-Newton, an ESA science mission with instruments and contributions directly funded by ESA member states and the USA (NASA). The CXC X-ray Observatory Center is operated by the Smithsonian Astrophysical Observatory for and on behalf of the NASA under contract NAS8-03060.

PY - 2007/8

Y1 - 2007/8

N2 - Abstract We report on accretion- and outflow-related X-rays from T Tauri stars, based on results from the XMM-Newton Extended Survey of the Taurus Molecular Cloud. X-rays potentially form in shocks of accretion streams near the stellar surface, although we hypothesize that direct interactions between the streams and magnetic coronae may occur as well. We report on the discovery of a soft excess in accreting T Tauri stars supporting these scenarios. We further discuss a new type of X-ray source in jet-driving T Tauri stars. It shows a strongly absorbed coronal component and a very soft, weakly absorbed component probably related to shocks in microjets. The excessive coronal absorption points to dust-depletion in the accretion streams.

AB - Abstract We report on accretion- and outflow-related X-rays from T Tauri stars, based on results from the XMM-Newton Extended Survey of the Taurus Molecular Cloud. X-rays potentially form in shocks of accretion streams near the stellar surface, although we hypothesize that direct interactions between the streams and magnetic coronae may occur as well. We report on the discovery of a soft excess in accreting T Tauri stars supporting these scenarios. We further discuss a new type of X-ray source in jet-driving T Tauri stars. It shows a strongly absorbed coronal component and a very soft, weakly absorbed component probably related to shocks in microjets. The excessive coronal absorption points to dust-depletion in the accretion streams.

UR - https://www.scopus.com/pages/publications/37249052786

UR - https://www.scopus.com/pages/publications/37249052786#tab=citedBy

U2 - 10.1017/S1743921307009519

DO - 10.1017/S1743921307009519

M3 - Article

AN - SCOPUS:37249052786

SN - 1743-9213

VL - 3

SP - 155

EP - 162

JO - Proceedings of the International Astronomical Union

JF - Proceedings of the International Astronomical Union

IS - 1 S243

ER -

Accretion and outflow-related X-rays in T Tauri stars

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