Astron. Astrophys. 364, 683-688 (2000)

Massive and luminous YSO IRAS 05361+3539 and its environment

A study of star formation in the parent cloud - I

A. Chakraborty ¹, D.K. Ojha ¹, B.G. Anandarao ² and T.N. Rengarajan <sup>*  1

1</sup> Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai(Bombay)-400005, India (abhijit@tifr.res.in; ojha@tifr.res.in)
² Physical Research Laboratory, Ahmedabad-390009, India (anand@prl.ernet.in)

Received 7 August 2000 / Accepted 24 October 2000

Abstract

Near-infrared photometry and narrow/broad-band imaging of the massive and luminous young stellar object IRAS 05361+3539 are presented. Imaging observations were made at Mt. Abu while the photometric data were taken from the 2MASS. From the color-color and color-magnitude diagrams, we identified several sources of faint Class II type and about six Class I type in the parent molecular cloud complex. The IRAS 05361+3539 itself was seen to be a Class I object and our images in Br and H₂ lines show jets/outflows from this object. The jet/outflow matches with the axis of CO outflow detected earlier. The near-infrared and the IRAS far-infrared flux distribution suggests a possible accretion disk with dust temperatures between 80 to 800K and extent of several tens to hundreds of AU. A possible FU Orionis type of source was detected in the cluster.

Key words: stars: individual: IRAS 05361+3539 ISM: jets and outflows

* Present address: Nagoya University, Physics Department, Nagoya 464-8602, Japan (renga@u.phys.nagoya-u.ac.jp)

SIMBAD Objects

Contents

• 1. Introduction
• 2. Observations and data reduction
  • 2.1. Observations from Mt. Abu
  • 2.2. 2MASS data
• 3. Results and discussion
  • 3.1. Star formation in the cloud
  • 3.2. Photometry and spectral energy distribution of IRAS 05361+3539
  • 3.3. Morphology of IRAS 05361+3539 and Detection of a NIR Jet
• 4. Conclusion
• Acknowledgements
• References

© European Southern Observatory (ESO) 2000

Online publication: January 29, 2001
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