Profile of the \(^{12}\)CO(3-2) Emission Line Detected From the Debris Disc of 49 Ceti

Pham Thi Tuyet Nhung; Pham Tuan Anh; Do Thi Hoai; Pham Ngoc Diep; Nguyen Thi Phuong; Nguyen Thi Thao; Pierre Dariulat

doi:10.15625/0868-3166/27/2/9423

Profile of the \(^{12}\)CO(3-2) Emission Line Detected From the Debris Disc of 49 Ceti

Pham Thi Tuyet Nhung, Pham Tuan Anh, Do Thi Hoai, Pham Ngoc Diep, Nguyen Thi Phuong, Nguyen Thi Thao, Pierre Dariulat

Author affiliations

Authors

Pham Thi Tuyet Nhung Vietnam National satellite center
Pham Tuan Anh Department of Astrophysics, Vietnam National Satellite Center, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
Do Thi Hoai Department of Astrophysics, Vietnam National Satellite Center, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
Pham Ngoc Diep Department of Astrophysics, Vietnam National Satellite Center, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
Nguyen Thi Phuong Department of Astrophysics, Vietnam National Satellite Center, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
Nguyen Thi Thao Department of Astrophysics, Vietnam National Satellite Center, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
Pierre Dariulat Department of Astrophysics, Vietnam National Satellite Center, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam

DOI:

https://doi.org/10.15625/0868-3166/27/2/9423

Keywords:

circumstellar matter, debris disc, individual (49 Ceti)

Abstract

The CO(3-2) emission of the debris disc of the young A star 49 Ceti, known to be particularly gas rich, has been recently detected and measured using the ALMA interferometer. We study the observed line profile and comment on each of the possible contributions to its width. Line broadening is found to be dominated by Keplerian shear and an upper limit of 0.8 kms FWHM is placed on other possible contributions,including temperature, confirming the quietness of the gas contained in the disc and disfavouring models that would require relatively violent events to generate secondary gas.

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References

Beckwith S.V.W. & Sargent A.I. 1993, ApJ, 402, 280 DOI: https://doi.org/10.1086/172131

Choquet E., Milli J., Wahhaj Z. et al. 2016, ApJL, 834(2), L12 DOI: https://doi.org/10.3847/2041-8213/834/2/L12

Hacar A., Alves J., Burkert A. and Goldsmith P. 2016, A&A, 591, A104 DOI: https://doi.org/10.1051/0004-6361/201527319

Horne K. & Marsh T.R. 1986, MNRAS, 218, 761 DOI: https://doi.org/10.1093/mnras/218.4.761

Hughes A.M., Wilner D.J., Kamp I. and Hogerheijne M.R. 2008, ApJ, 681,626 DOI: https://doi.org/10.1086/588520

Hughes A.M., Lieman-Sifry J., Flaherty K.M. et al. 2017, Radial Surface Density Profiles of Gas and Dust in the

Debris Disk around 49 Ceti, submitted to ApJ

Nhung P.T., Hoai D.T., Tuan-Anh P. et al. 2017, High resolution ALMA observation of the 12CO(3-2) and 350 GHz

continuum emissions of the debris disc of 49 Ceti, submitted to MNRAS, arXiv:1701.02131

Roberge A., Kamp I., Montesinos B. et al. 2013, ApJ, 771, 69 DOI: https://doi.org/10.1088/0004-637X/771/1/69

Roberge A., Welsh B.Y., Kamp I. et al. 2014, ApJL, 796, L11 DOI: https://doi.org/10.1088/2041-8205/796/1/L11

Wahhaj Z., Koerner D.W. & Sargent A.I. 2007, ApJ, 661, 373 DOI: https://doi.org/10.1086/512716

Wolf S., Schegerer A., Beuther H. et al. 2008, ApJ, 674, L101 DOI: https://doi.org/10.1086/529188

Zuckerman B. and Song I. 2012, ApJ, 758, 77 DOI: https://doi.org/10.1088/0004-637X/758/2/77

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Published

24-08-2017

How to Cite

[1]

P. T. Tuyet Nhung, “Profile of the \(^{12}\)CO(3-2) Emission Line Detected From the Debris Disc of 49 Ceti”, Comm. Phys., vol. 27, no. 2, p. 107, Aug. 2017.

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Vol. 27 No. 2 (2017)

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