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Browsing Publications based on data from IAO, Hanle by Author "Mathew, B"

Now showing items 1-6 of 6

Be phenomenon in open clusters: results from a survey of emission-line stars in young open clusters

Mathew, B; Subramaniam, A; Bhatt, B. C (The Royal Astronomical Society, 2008-08)

Emission-line stars in young open clusters are identified to study their properties, as a function of age, spectral type and evolutionary state. 207 open star clusters were observed using the slitless spectroscopy method ...
NGC 7419: a young open cluster with a number of very young intermediate mass pre-MS stars

Subramaniam, A; Mathew, B; Bhatt, B. C; Ramya, S (Blackwell Publishing, 2006-06)

We present a photometric and spectroscopic study of the young open cluster NGC 7419, which is known to host a large number of classical Be stars for reasons not well understood. Based on CCD photometric observations of 327 ...
Optical and near-infrared photometric study of the open cluster NGC 637 and 957

Yadav, R. K. S; Kumar, B; Subramaniam, A; Sagar, R; Mathew, B (Royal Astronomical Society, 2008-11)

We present UBVRI CCD photometry in the region of the open clusters NGC 637 and 957. The radii are found to be 4.2 and 4.3 arcmin. Their reddenings E(B - V) are 0.64 +/- 0.05 and 0.71 +/- 0.05 mag and their distances, from ...
Optical spectroscopy of classical Be stars in open clusters

Mathew, B; Subramaniam, A (Astronomical Society of India, 2011-12)

We present a spectroscopic study of 150 Classical Be stars in 39 open clusters using medium resolution spectra in the wavelength range 3800 – 9000 A° . Onethird of the sample (48 stars in 18 clusters) has been studied ...
Pre-main sequence stars, emission stars and recent star formation in the Cygnus region

Bhavya, B; Mathew, B; Subramaniam, A (Astronomical Society of India, 2007-09)

The recent star formation history in the Cygnus region is studied using 5 clusters (IC 4996, NGC 6910, Berkeley 87, Biurakan 2 and Berkeley 86). The optical data from the literature are combined with the 2MASS data to ...
Studies of a possible new Herbig Ae/Be star in the open cluster NGC 7380

Mathew, B; Banerjee, D. P. K; Ashok, N. M; Subramaniam, A; Bhavya, B; Joshi, V (Chinese Academy of Sciences, 2012-02)

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 ...

Browsing Publications based on data from IAO, Hanle by Author "Mathew, B"

Browsing Publications based on data from IAO, Hanle by Author "Mathew, B"

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