Fundamental vibrational transition of CO during the outburst of EX Lupi in 2008

M. Goto; Zs. Regaly; C. P. Dullemond; M. van den Ancker; J. M. Brown; A. Carmona; K. M. Pontoppidan; P. Abraham; G. A. Blake; D. Fedele; Th. Henning; A. Juhasz; A. Kospal; L. Mosoni; A. Sicilia-Aguilar; H. Terada; R. Van Boekel; E. F. van Dishoeck; T. Usuda

doi:10.1088/0004-637X/728/1/5

Fundamental vibrational transition of CO during the outburst of EX Lupi in 2008

M. Goto (Lead / Corresponding author), Zs. Regaly, C. P. Dullemond, M. van den Ancker, J. M. Brown, A. Carmona, K. M. Pontoppidan, P. Abraham, G. A. Blake, D. Fedele, Th. Henning, A. Juhasz, A. Kospal, L. Mosoni, A. Sicilia-Aguilar, H. Terada, R. Van Boekel, E. F. van Dishoeck, T. Usuda

Physics

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Abstract

We report monitoring observations of the T Tauri star EX Lupi during its outburst in 2008 in the CO fundamental band at 4.6-5.0 mu m. The observations were carried out at the Very Large Telescope and the Subaru Telescope at six epochs from 2008 April to August, covering the plateau of the outburst and the fading phase to a quiescent state. The line flux of CO emission declines with the visual brightness of the star and the continuum flux at 5 mu m, but composed of two subcomponents that decay with different rates. The narrow-line emission (50 km s(-1) in FWHM) is near the systemic velocity of EX Lupi. These emission lines appear exclusively in v = 1-0. The line widths translate to a characteristic orbiting radius of 0.4 AU. The broad-line component (FWZI similar to 150 km s(-1)) is highly excited up to v

Original language	English
Article number	5
Number of pages	5
Journal	Astrophysical Journal
Volume	728
Issue number	1
DOIs	https://doi.org/10.1088/0004-637X/728/1/5
Publication status	Published - 13 Jan 2011

Keywords

circumstellar matter protoplanetary disks stars: formation stars: individual (EX Lupi) stars: pre-main sequence stars: variables: T Tauri, Herbig Ae/Be LAYERED PROTOPLANETARY DISCS FU-ORIONIS STARS T-TAURI-STARS NEAR-INFRARED SPECTROSCOPY ACCRETION DISK 2-DIMENSIONAL MODELS EPISODIC ACCRETION V1647 ORIONIS EVOLUTION EMISSION

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Goto, M., Regaly, Z., Dullemond, C. P., van den Ancker, M., Brown, J. M., Carmona, A., Pontoppidan, K. M., Abraham, P., Blake, G. A., Fedele, D., Henning, T., Juhasz, A., Kospal, A., Mosoni, L., Sicilia-Aguilar, A., Terada, H., Van Boekel, R., van Dishoeck, E. F., & Usuda, T. (2011). Fundamental vibrational transition of CO during the outburst of EX Lupi in 2008. Astrophysical Journal, 728(1), Article 5. https://doi.org/10.1088/0004-637X/728/1/5

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title = "Fundamental vibrational transition of CO during the outburst of EX Lupi in 2008",

abstract = "We report monitoring observations of the T Tauri star EX Lupi during its outburst in 2008 in the CO fundamental band at 4.6-5.0 mu m. The observations were carried out at the Very Large Telescope and the Subaru Telescope at six epochs from 2008 April to August, covering the plateau of the outburst and the fading phase to a quiescent state. The line flux of CO emission declines with the visual brightness of the star and the continuum flux at 5 mu m, but composed of two subcomponents that decay with different rates. The narrow-line emission (50 km s(-1) in FWHM) is near the systemic velocity of EX Lupi. These emission lines appear exclusively in v = 1-0. The line widths translate to a characteristic orbiting radius of 0.4 AU. The broad-line component (FWZI similar to 150 km s(-1)) is highly excited up to v",

keywords = "circumstellar matter protoplanetary disks stars: formation stars: individual (EX Lupi) stars: pre-main sequence stars: variables: T Tauri, Herbig Ae/Be LAYERED PROTOPLANETARY DISCS FU-ORIONIS STARS T-TAURI-STARS NEAR-INFRARED SPECTROSCOPY ACCRETION DISK 2-DIMENSIONAL MODELS EPISODIC ACCRETION V1647 ORIONIS EVOLUTION EMISSION",

author = "M. Goto and Zs. Regaly and Dullemond, {C. P.} and {van den Ancker}, M. and Brown, {J. M.} and A. Carmona and Pontoppidan, {K. M.} and P. Abraham and Blake, {G. A.} and D. Fedele and Th. Henning and A. Juhasz and A. Kospal and L. Mosoni and A. Sicilia-Aguilar and H. Terada and {Van Boekel}, R. and {van Dishoeck}, {E. F.} and T. Usuda",

year = "2011",

month = jan,

day = "13",

doi = "10.1088/0004-637X/728/1/5",

language = "English",

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Goto, M, Regaly, Z, Dullemond, CP, van den Ancker, M, Brown, JM, Carmona, A, Pontoppidan, KM, Abraham, P, Blake, GA, Fedele, D, Henning, T, Juhasz, A, Kospal, A, Mosoni, L, Sicilia-Aguilar, A, Terada, H, Van Boekel, R, van Dishoeck, EF & Usuda, T 2011, 'Fundamental vibrational transition of CO during the outburst of EX Lupi in 2008', Astrophysical Journal, vol. 728, no. 1, 5. https://doi.org/10.1088/0004-637X/728/1/5

TY - JOUR

T1 - Fundamental vibrational transition of CO during the outburst of EX Lupi in 2008

AU - Goto, M.

AU - Regaly, Zs.

AU - Dullemond, C. P.

AU - van den Ancker, M.

AU - Brown, J. M.

AU - Carmona, A.

AU - Pontoppidan, K. M.

AU - Abraham, P.

AU - Blake, G. A.

AU - Fedele, D.

AU - Henning, Th.

AU - Juhasz, A.

AU - Kospal, A.

AU - Mosoni, L.

AU - Sicilia-Aguilar, A.

AU - Terada, H.

AU - Van Boekel, R.

AU - van Dishoeck, E. F.

AU - Usuda, T.

PY - 2011/1/13

Y1 - 2011/1/13

N2 - We report monitoring observations of the T Tauri star EX Lupi during its outburst in 2008 in the CO fundamental band at 4.6-5.0 mu m. The observations were carried out at the Very Large Telescope and the Subaru Telescope at six epochs from 2008 April to August, covering the plateau of the outburst and the fading phase to a quiescent state. The line flux of CO emission declines with the visual brightness of the star and the continuum flux at 5 mu m, but composed of two subcomponents that decay with different rates. The narrow-line emission (50 km s(-1) in FWHM) is near the systemic velocity of EX Lupi. These emission lines appear exclusively in v = 1-0. The line widths translate to a characteristic orbiting radius of 0.4 AU. The broad-line component (FWZI similar to 150 km s(-1)) is highly excited up to v

AB - We report monitoring observations of the T Tauri star EX Lupi during its outburst in 2008 in the CO fundamental band at 4.6-5.0 mu m. The observations were carried out at the Very Large Telescope and the Subaru Telescope at six epochs from 2008 April to August, covering the plateau of the outburst and the fading phase to a quiescent state. The line flux of CO emission declines with the visual brightness of the star and the continuum flux at 5 mu m, but composed of two subcomponents that decay with different rates. The narrow-line emission (50 km s(-1) in FWHM) is near the systemic velocity of EX Lupi. These emission lines appear exclusively in v = 1-0. The line widths translate to a characteristic orbiting radius of 0.4 AU. The broad-line component (FWZI similar to 150 km s(-1)) is highly excited up to v

KW - circumstellar matter protoplanetary disks stars: formation stars: individual (EX Lupi) stars: pre-main sequence stars: variables: T Tauri, Herbig Ae/Be LAYERED PROTOPLANETARY DISCS FU-ORIONIS STARS T-TAURI-STARS NEAR-INFRARED SPECTROSCOPY ACCRETION DISK 2

U2 - 10.1088/0004-637X/728/1/5

DO - 10.1088/0004-637X/728/1/5

M3 - Article

SN - 0004-637X

VL - 728

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 5

ER -

Fundamental vibrational transition of CO during the outburst of EX Lupi in 2008

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Keywords

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