O VI and H2 Lines in Sunspots

Nicolas Alain Claude Labrosse; H. Morgan; Shadia Rifai Habbal; D. Brown

O VI and H2 Lines in Sunspots

Nicolas Alain Claude Labrosse, H. Morgan, Shadia Rifai Habbal, D. Brown

Department of Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference Proceeding (Non-Journal item)

Abstract

Sunspots are locations on the Sun where unique atmospheric conditions prevail. In particular, the very low temperatures found above sunspots allow the emission of H2 lines. In this study we are interested in the radiation emitted by sunspots in the O VI lines at 1031.96 Å and 1037.60 Å. We use SOHO/SUMER observations of a sunspot performed in March 1999 and investigate the interaction between the O VI lines and a H2 line at 1031.87 Å found in the Werner band. The unique features of sunspots atmospheres may very well have important implications regarding the illumination of coronal O+5 ions in the low corona, affecting our interpretation of Doppler dimming diagnostics.

Original language	English
Title of host publication	The Physics of Chromospheric Plasmas ASP Conference Series
Subtitle of host publication	Proceedings of the conference held 9-13 October, 2006 at the University of Coimbra in Coimbra, Portugal
Editors	P. Heinzel, I. Dorotovič, R. J. Rutten
Pages	247
Volume	368
Publication status	Published - 01 May 2007
Event	The Physics of Chromospheric Plasmas ASP Conference - Coimbra , Portugal Duration: 09 Oct 2006 → 13 Oct 2006

Conference

Conference	The Physics of Chromospheric Plasmas ASP Conference
Country/Territory	Portugal
City	Coimbra
Period	09 Oct 2006 → 13 Oct 2006

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Labrosse, N. A. C., Morgan, H., Habbal, S. R., & Brown, D. (2007). O VI and H2 Lines in Sunspots. In P. Heinzel, I. Dorotovič, & R. J. Rutten (Eds.), The Physics of Chromospheric Plasmas ASP Conference Series: Proceedings of the conference held 9-13 October, 2006 at the University of Coimbra in Coimbra, Portugal (Vol. 368, pp. 247) http://adsabs.harvard.edu/abs/2007ASPC..368..247L

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title = "O VI and H2 Lines in Sunspots",

abstract = "Sunspots are locations on the Sun where unique atmospheric conditions prevail. In particular, the very low temperatures found above sunspots allow the emission of H2 lines. In this study we are interested in the radiation emitted by sunspots in the O VI lines at 1031.96 {\AA} and 1037.60 {\AA}. We use SOHO/SUMER observations of a sunspot performed in March 1999 and investigate the interaction between the O VI lines and a H2 line at 1031.87 {\AA} found in the Werner band. The unique features of sunspots atmospheres may very well have important implications regarding the illumination of coronal O+5 ions in the low corona, affecting our interpretation of Doppler dimming diagnostics.",

author = "Labrosse, {Nicolas Alain Claude} and H. Morgan and Habbal, {Shadia Rifai} and D. Brown",

note = "The Physics of Chromospheric Plasmas ASP Conference Series, Vol. 368, Proceedings of the conference held 9-13 October, 2006 at the University of Coimbra in Coimbra, Portugal. Edited by P. Heinzel, I. Dorotovi{\v c}, and R. J. Rutten. San Francisco: Astronomical Society of the Pacific, 2007., p.247 ; The Physics of Chromospheric Plasmas ASP Conference ; Conference date: 09-10-2006 Through 13-10-2006",

year = "2007",

month = may,

day = "1",

language = "English",

volume = "368",

pages = "247",

editor = "Heinzel, {P. } and I. Dorotovi{\v c} and Rutten, {R. J. }",

booktitle = "The Physics of Chromospheric Plasmas ASP Conference Series",

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Labrosse, NAC, Morgan, H, Habbal, SR & Brown, D 2007, O VI and H2 Lines in Sunspots. in P Heinzel, I Dorotovič & RJ Rutten (eds), The Physics of Chromospheric Plasmas ASP Conference Series: Proceedings of the conference held 9-13 October, 2006 at the University of Coimbra in Coimbra, Portugal. vol. 368, pp. 247, The Physics of Chromospheric Plasmas ASP Conference, Coimbra , Portugal, 09 Oct 2006. <http://adsabs.harvard.edu/abs/2007ASPC..368..247L>

O VI and H2 Lines in Sunspots. / Labrosse, Nicolas Alain Claude; Morgan, H.; Habbal, Shadia Rifai et al.
The Physics of Chromospheric Plasmas ASP Conference Series: Proceedings of the conference held 9-13 October, 2006 at the University of Coimbra in Coimbra, Portugal. ed. / P. Heinzel; I. Dorotovič; R. J. Rutten. Vol. 368 2007. p. 247.

Research output: Chapter in Book/Report/Conference proceeding › Conference Proceeding (Non-Journal item)

TY - GEN

T1 - O VI and H2 Lines in Sunspots

AU - Labrosse, Nicolas Alain Claude

AU - Morgan, H.

AU - Habbal, Shadia Rifai

AU - Brown, D.

N1 - The Physics of Chromospheric Plasmas ASP Conference Series, Vol. 368, Proceedings of the conference held 9-13 October, 2006 at the University of Coimbra in Coimbra, Portugal. Edited by P. Heinzel, I. Dorotovič, and R. J. Rutten. San Francisco: Astronomical Society of the Pacific, 2007., p.247

PY - 2007/5/1

Y1 - 2007/5/1

N2 - Sunspots are locations on the Sun where unique atmospheric conditions prevail. In particular, the very low temperatures found above sunspots allow the emission of H2 lines. In this study we are interested in the radiation emitted by sunspots in the O VI lines at 1031.96 Å and 1037.60 Å. We use SOHO/SUMER observations of a sunspot performed in March 1999 and investigate the interaction between the O VI lines and a H2 line at 1031.87 Å found in the Werner band. The unique features of sunspots atmospheres may very well have important implications regarding the illumination of coronal O+5 ions in the low corona, affecting our interpretation of Doppler dimming diagnostics.

AB - Sunspots are locations on the Sun where unique atmospheric conditions prevail. In particular, the very low temperatures found above sunspots allow the emission of H2 lines. In this study we are interested in the radiation emitted by sunspots in the O VI lines at 1031.96 Å and 1037.60 Å. We use SOHO/SUMER observations of a sunspot performed in March 1999 and investigate the interaction between the O VI lines and a H2 line at 1031.87 Å found in the Werner band. The unique features of sunspots atmospheres may very well have important implications regarding the illumination of coronal O+5 ions in the low corona, affecting our interpretation of Doppler dimming diagnostics.

UR - http://hdl.handle.net/2160/9919

M3 - Conference Proceeding (Non-Journal item)

VL - 368

SP - 247

BT - The Physics of Chromospheric Plasmas ASP Conference Series

A2 - Heinzel, P.

A2 - Dorotovič, I.

A2 - Rutten, R. J.

T2 - The Physics of Chromospheric Plasmas ASP Conference

Y2 - 9 October 2006 through 13 October 2006

ER -

O VI and H2 Lines in Sunspots

Abstract

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