High-resolution near-infrared imaging of the Orion 114-426 silhouette disk

Mark J. McCaughrean, Hua Chen, John Bally, Ed Erickson, Rodger I Thompson, Marcia J Rieke, Glenn Schneider, Susan Stolovy, Erick Young

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

We present the first high-resolution near-infrared images of the edge-on silhouette circumstellar disk, Orion 114-426, made using NICMOS on the Hubble Space Telescope. Images taken against the bright nebular background of the ionized hydrogen Paα line at 1.87 μm show the major axis of the disk to be approximately 20% smaller than at 0.6 μm, from which we deduce the structure of the edge of the disk. Continuum images of diffuse polar lobes above and below the plane of the disk show a morphology and evolution with wavelength consistent with predictions for reflection nebulae in a diffuse envelope with large polar cavities, surrounding a thin, massless, Keplerian disk, centered on an otherwise hidden central star. We make use of our observations and reasonable assumptions about the underlying disk structure to show that the disk mass is at least 10 M and plausibly ≥5 × 10-4 M.

Original languageEnglish (US)
JournalAstrophysical Journal
Volume492
Issue number2 PART II
StatePublished - 1998

Fingerprint

near infrared
high resolution
cavity
hydrogen
wavelength
reflection nebulae
prediction
Hubble Space Telescope
lobes
envelopes
continuums
stars
cavities
predictions
wavelengths

Keywords

  • Accretion, accretion disks
  • Circumstellar matter-infrared: ISM: continuum
  • Infrared: ISM: lines and bands
  • ISM: individual (Orion Nebula)
  • Stars: formation

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

McCaughrean, M. J., Chen, H., Bally, J., Erickson, E., Thompson, R. I., Rieke, M. J., ... Young, E. (1998). High-resolution near-infrared imaging of the Orion 114-426 silhouette disk. Astrophysical Journal, 492(2 PART II).

High-resolution near-infrared imaging of the Orion 114-426 silhouette disk. / McCaughrean, Mark J.; Chen, Hua; Bally, John; Erickson, Ed; Thompson, Rodger I; Rieke, Marcia J; Schneider, Glenn; Stolovy, Susan; Young, Erick.

In: Astrophysical Journal, Vol. 492, No. 2 PART II, 1998.

Research output: Contribution to journalArticle

McCaughrean, MJ, Chen, H, Bally, J, Erickson, E, Thompson, RI, Rieke, MJ, Schneider, G, Stolovy, S & Young, E 1998, 'High-resolution near-infrared imaging of the Orion 114-426 silhouette disk', Astrophysical Journal, vol. 492, no. 2 PART II.
McCaughrean, Mark J. ; Chen, Hua ; Bally, John ; Erickson, Ed ; Thompson, Rodger I ; Rieke, Marcia J ; Schneider, Glenn ; Stolovy, Susan ; Young, Erick. / High-resolution near-infrared imaging of the Orion 114-426 silhouette disk. In: Astrophysical Journal. 1998 ; Vol. 492, No. 2 PART II.
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AU - Erickson, Ed

AU - Thompson, Rodger I

AU - Rieke, Marcia J

AU - Schneider, Glenn

AU - Stolovy, Susan

AU - Young, Erick

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N2 - We present the first high-resolution near-infrared images of the edge-on silhouette circumstellar disk, Orion 114-426, made using NICMOS on the Hubble Space Telescope. Images taken against the bright nebular background of the ionized hydrogen Paα line at 1.87 μm show the major axis of the disk to be approximately 20% smaller than at 0.6 μm, from which we deduce the structure of the edge of the disk. Continuum images of diffuse polar lobes above and below the plane of the disk show a morphology and evolution with wavelength consistent with predictions for reflection nebulae in a diffuse envelope with large polar cavities, surrounding a thin, massless, Keplerian disk, centered on an otherwise hidden central star. We make use of our observations and reasonable assumptions about the underlying disk structure to show that the disk mass is at least 10 M⊕ and plausibly ≥5 × 10-4 M⊙.

AB - We present the first high-resolution near-infrared images of the edge-on silhouette circumstellar disk, Orion 114-426, made using NICMOS on the Hubble Space Telescope. Images taken against the bright nebular background of the ionized hydrogen Paα line at 1.87 μm show the major axis of the disk to be approximately 20% smaller than at 0.6 μm, from which we deduce the structure of the edge of the disk. Continuum images of diffuse polar lobes above and below the plane of the disk show a morphology and evolution with wavelength consistent with predictions for reflection nebulae in a diffuse envelope with large polar cavities, surrounding a thin, massless, Keplerian disk, centered on an otherwise hidden central star. We make use of our observations and reasonable assumptions about the underlying disk structure to show that the disk mass is at least 10 M⊕ and plausibly ≥5 × 10-4 M⊙.

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KW - ISM: individual (Orion Nebula)

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