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High Angular Resolution Observations of Protostellar Disks

Published online by Cambridge University Press:  19 July 2016

J.-L. Monin ,
J. Bouvier  and
F. Malbet
J.-L. Monin
Affiliation:
Observatoire de Grenoble, Laboratoire d'Astrophysique, 414 rue de la piscine, BP 53X, 38041 Grenoble Cedex, France
J. Bouvier
Affiliation:
Observatoire de Grenoble, Laboratoire d'Astrophysique, 414 rue de la piscine, BP 53X, 38041 Grenoble Cedex, France
F. Malbet
Affiliation:
Observatoire de Grenoble, Laboratoire d'Astrophysique, 414 rue de la piscine, BP 53X, 38041 Grenoble Cedex, France

Abstract

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The existence of circumstellar disks around young stellar objects like T Tauri stars is now well accepted. Such disks would have solar system sizes and, at the distance of the nearest star forming cloud, an angular diameter of 0.01 to 1 arcsecond at most, requiring very high angular resolution to be detected. Due to the nature of the emission process in circumstellar disks and to chromatic properties of ground based observations, disk imaging is expected to be more efficient in the near infrared. Also, multi-aperture interferometry in this wavelength range (1 – 10 μm) is expected to bring considerable insight into the disks properties and evolution in revealing their inner physical structure.

In this paper, we present synthetic images of circumstellar accretion disks. The images have been computed from a complete disk vertical structure model.

Keywords

Young starscircumstellar disksaccretionthermal emissionscatteringimageryinterferometry
Type
Imaging Results: Optical and Infrared
Information
Symposium - International Astronomical Union , Volume 158: Very High Angular Resolution Imaging , 1994 , pp. 387 - 390
Copyright
Copyright © Kluwer 1994 

References

Bertout, C., Bouvier, J. 1988, Interferometric Imaging of Protoplanetary Disks around Young Stars, Proc NOAO-ESO Conf on High-Resolution Imaging by Interferometry, ed. Merkle, F., 69.Google Scholar
Lazareff, B., Pudritz, R.E., Monin, J-L. 1990, Infrared Images of Protostellar Accretion Disks: Theoretical Models, Astrophys Journal, 358, 170.Google Scholar
Lin, D. N. C., Papaloizou, J. 1985, On the Dynamical Origin of the Solar System, in Protostars and Planets II, ed. Black, D. C., Matthews, M. S. (Tucson: University of Arizona Press), 493.Google Scholar
Lynden-Bell, D., Pringle, J. E. 1974, The Evolution of Viscous Discs and The Origin of the Nebular Variables, Monthly Notes of Royal Astron Soc, 168, 603.Google Scholar
Malbet, F., Monin, J.-L., Bouvier, J. (1992), ‘Imaging Circumstellar Disk around Young Stars by Multi-Aperture Interferometry’, Proc. ESA Coll. Targerts for Space-Based Interferometry, Beaulieu, Oct. 92, in press Google Scholar
Malbet, F., Rigaut, F., Bertout, C., Léna, P. 1992, Detection of a 400 AU disk-like structure around the young stellar object Z CMa, submitted to Astron Astrophys. Google Scholar
Ménard, F., 1989, Etude de la polarisation causée par des grains dans les enveloppes circumstellaires denses, , Univ. of Montreal.Google Scholar
Ménard, F., 1992, Astrophys Journal, submitted.Google Scholar
Monin, J-L., Pudritz, R.E., Lacombe, F., Rouan, D. 1989, Infrared Images of HL Tau: Scattering from an Inclined, Flaring Disk, Astron Astrophys, 215, L1.Google Scholar
Shakura, N.I., and Sunyaev, R.A. 1973, Black Holes in Binary Systems. Observational Appearance, Astron Astrophys, 24, 337.Google Scholar
Whitney, B.A., Hartmann, L. 1992, Model scattering envelopes of Young Stellar Objects. I. Method and application to circumstellar disks, Astrophys Journal, in press Google Scholar
Whitney, B.A., Hartmann, L. 1993, Model scattering envelopes of Young Stellar Objects. I. Infalling envelopes, Astrophys Journal, submitted.Google Scholar
Wolfire, M.G., Cassinelli, J.P. 1986, The Temperature Structure in Accretion Flows onto massive Protostars, Astrophysical Journal, 310, 207 Google Scholar