Tracing discs around massive YSOs using CO emission

J. D. Ilee; H. E. Wheelwright; R. D. Oudmaijer; W. J. de Wit; L. T. Maud; M. G. Hoare; S. L. Lumsden; T. J. T. Moore; J. S. Urquhart; J. C. Mottram

Tracing discs around massive YSOs using CO emission

J. D. Ilee, H. E. Wheelwright, R. D. Oudmaijer, W. J. de Wit, L. T. Maud, M. G. Hoare, S. L. Lumsden, T. J. T. Moore, J. S. Urquhart, J. C. Mottram

School of Physics and Astronomy

Research output: Contribution to conference › Poster › peer-review

Abstract

There is little observational evidence that discs play a role in massive star formation. We present spectra of 20 massive young stellar objects (MYSOs) displaying CO first overtone bandhead emission. We model the emission under the assumption that it originates in a circumstellar disc, and find good fits to all spectra. The best fitting discs are found to be spread across a wide range of inclinations, consistent with accretion disc models, and within the dust sublimation radius. Our results provide strong evidence for small scale gaseous accretion discs, supporting the scenario in which massive stars form via disc accretion.

Original language	English
Publication status	Published - 1 Jul 2013
Event	Protostars and Planets VI - Heidelberg, Germany Duration: 15 Jul 2013 → 20 Jul 2013

Conference

Conference	Protostars and Planets VI
Country/Territory	Germany
City	Heidelberg
Period	15/07/13 → 20/07/13

Cite this

@conference{1d853f608e694f5d844fe30489bdacc0,

title = "Tracing discs around massive YSOs using CO emission",

abstract = "There is little observational evidence that discs play a role in massive star formation. We present spectra of 20 massive young stellar objects (MYSOs) displaying CO first overtone bandhead emission. We model the emission under the assumption that it originates in a circumstellar disc, and find good fits to all spectra. The best fitting discs are found to be spread across a wide range of inclinations, consistent with accretion disc models, and within the dust sublimation radius. Our results provide strong evidence for small scale gaseous accretion discs, supporting the scenario in which massive stars form via disc accretion.",

author = "Ilee, {J. D.} and Wheelwright, {H. E.} and Oudmaijer, {R. D.} and {de Wit}, {W. J.} and Maud, {L. T.} and Hoare, {M. G.} and Lumsden, {S. L.} and Moore, {T. J. T.} and Urquhart, {J. S.} and Mottram, {J. C.}",

note = "Poster #2B010; Protostars and Planets VI ; Conference date: 15-07-2013 Through 20-07-2013",

year = "2013",

month = jul,

day = "1",

language = "English",

}

TY - CONF

T1 - Tracing discs around massive YSOs using CO emission

AU - Ilee, J. D.

AU - Wheelwright, H. E.

AU - Oudmaijer, R. D.

AU - de Wit, W. J.

AU - Maud, L. T.

AU - Hoare, M. G.

AU - Lumsden, S. L.

AU - Moore, T. J. T.

AU - Urquhart, J. S.

AU - Mottram, J. C.

N1 - Poster #2B010

PY - 2013/7/1

Y1 - 2013/7/1

N2 - There is little observational evidence that discs play a role in massive star formation. We present spectra of 20 massive young stellar objects (MYSOs) displaying CO first overtone bandhead emission. We model the emission under the assumption that it originates in a circumstellar disc, and find good fits to all spectra. The best fitting discs are found to be spread across a wide range of inclinations, consistent with accretion disc models, and within the dust sublimation radius. Our results provide strong evidence for small scale gaseous accretion discs, supporting the scenario in which massive stars form via disc accretion.

AB - There is little observational evidence that discs play a role in massive star formation. We present spectra of 20 massive young stellar objects (MYSOs) displaying CO first overtone bandhead emission. We model the emission under the assumption that it originates in a circumstellar disc, and find good fits to all spectra. The best fitting discs are found to be spread across a wide range of inclinations, consistent with accretion disc models, and within the dust sublimation radius. Our results provide strong evidence for small scale gaseous accretion discs, supporting the scenario in which massive stars form via disc accretion.

UR - http://adsabs.harvard.edu/abs/2013prpl.conf2B010I

M3 - Poster

T2 - Protostars and Planets VI

Y2 - 15 July 2013 through 20 July 2013

ER -

Tracing discs around massive YSOs using CO emission

Abstract

Conference

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