A&A 438, L21-L24 (2005)
On the origin of the X-ray emission towards the early Herbig Be star MWC 297Jorick S. Vink1, P. M. O'Neill1, S. G. Els2 and J. E. Drew1
1 Imperial College London, Blackett Laboratory, Prince Consort Road, London, SW7 2AZ, UK
2 California Institute of Technology, Mail Code 102-8, 1200 E. California Blvd., Pasadena CA 91125, USA
(Received 9 May 2005 / Accepted 12 June 2005 )
We present high resolution (0.2) AO-corrected coronographic near-infrared imaging on the early-type Herbig Be star MWC 297. X-ray flaring has been reported towards this young object, however this has been difficult to reconcile with its early spectral type (B1.5) and relatively high mass (~10 ). Our infrared and X-ray analysis shows that the X-ray flaring is likely due to a late-type star in the same field. The case of MWC 297 emphasizes the need for coronographic imaging to address the reality of X-ray emission towards Herbig Ae/Be stars, which is needed to understand the differences between low and high-mass star formation.
Key words: stars: formation -- stars: pre-main sequence -- stars: flare -- stars: individual: M 297 -- X-rays: stars
© ESO 2005