Studies of a possible new Herbig Ae/Be star in the open cluster NGC 7380

• Published in: Research in astronomy and astrophysics Vol. 12; no. 2; pp. 167 - 176
• Main Authors: Mathew, Blesson, Banerjee, D. P. K., Ashok, N. M., Subramaniam, Annapurni, Bhavya, Bhaskaran, Joshi, Vishal
• Format: Journal Article
• Language: English
• Published: Cochin University of Science and Technology, Cochin, India 01.02.2012; Astronomy and Astrophysics Division, Physical Research Laboratory, Navrangapura, Ahmedabad - 380009, Gujarat, India%Indian Institute of Astrophysics, Bangalore - 560034, India%Indian Institute of Astrophysics, Bangalore - 560034, India
• Subjects: galaxies: star clusters: individual: NGC 7380; Be; line; stars: winds,outflows; stars: emission; stars: pre; main sequence
• ISSN: 1674-4527; 2397-6209
• DOI: 10.1088/1674-4527/12/2/005

P154.1; 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 Hα 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 (A) and [OI] 6300 (A) lines,is the detection of a blue-shifted high velocity outflow (200 ±50 km s- 1) from the star.