Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2012-01-24
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
10 pages, 5 figures, Research in Astronomy and Astrophysics, Volume 12, Issue 2, pp. 167-176 (2012)
Scientific paper
We present a study of the star 2MASS J22472238+5801214 with the aim of identifying its true nature which has hitherto been uncertain. This object, which is a member of the young cluster NGC 7380, has been variously proposed to be a Be star, a D-type symbiotic and a Herbig Ae/Be star in separate studies. Here we present optical spectroscopy, near-IR photometry and narrow band H-alpha imaging of the nebulosity in its environment. Analysis of all these results, including the spectral energy distribution constructed from available data, strongly indicate the source to be a Herbig Ae/Be star. The star is found to be accompanied by a nebulosity with an interesting structure. A bow shock shaped structure, similar to a cometary nebula, is seen very close to the star with its apex oriented towards the photoionizing source of this region (i.e. the star DH Cep). An interesting spectroscopic finding, from the forbidden [SII] 6716, 6731 \AA and [OI] 6300 \AA lines, is the detection of a blue-shifted high velocity outflow (200 +/- 50 km/s) from the star.
Ashok Nagarhalli M.
Banerjee Dipankar P. K.
Bhavya B.
Joshi Vishal
Mathew Blesson
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