55 citations · 229 across the 14 of their papers we have counts for
9 papers · 1 filter
Study of Classical Be stars in open clusters older than 100 Myr
Madhu Kashyap Jagadeesh, Blesson Mathew, K. T. Paul +3
We performed the slitless spectroscopic survey to identify Classical (CBe) stars in open clusters older than 100 Myr. Observing a sample of 71 open clusters, we identified 13 CBe s…
Identification of new Classical Ae stars in the Galaxy using LAMOST DR5
R. Anusha, Blesson Mathew, B. Shridharan +6
We report the first systematic study to identify and characterize a sample of classical Ae stars in the Galaxy. The spectra of these stars were retrieved from the A-star catalog us…
Optical spectroscopy of Galactic field Classical Be stars
Gourav Banerjee, Blesson Mathew, K. T. Paul +3
In this study, we analyze the emission lines of different species present in 118 Galactic field classical Be stars in the wavelength range of 3800 - 9000 Å. We re-estimated the ext…
On the mass accretion rate and infrared excess in Herbig Ae/Be Stars
R. Arun, Blesson Mathew, P. Manoj +5
The present study makes use of the unprecedented capability of the Gaia mission to obtain the stellar parameters such as distance, age, and mass of HAeBe stars. The accuracy of Gai…
A study of Pulsation & Rotation in a sample of A-K type stars in the Kepler field
Sowgata Chowdhury, Santosh Joshi, Chris A. Engelbrecht +3
We present the results of time-series photometric analysis of 15106 A-K type stars observed by the Kepler space mission. We identified 513 new rotational variables and measured the…
Excitation mechanism of OI lines in Herbig Ae/Be stars
Blesson Mathew, P. Manoj, Mayank Narang +7
We have investigated the role of a few prominent excitation mechanisms viz. collisional excitation, recombination, continuum fluorescence and Lyman beta fluorescence on the OI line…
Short-term Hα line variations in Classical Be stars: 59 Cyg and OT Gem
Paul KT, Shruthi S Bhat, Annapurni Subramaniam
We present the optical spectroscopic study of two Classical Be stars, 59 Cyg and OT Gem obtained over a period of few months in 2009. We detected a rare triple-peak H emission p…
Spectroscopic study of Be-shell stars: 4 Her and 88 Her
Bhat S Shruthi, K T Paul, Subramaniam Annapurni +1
We present the optical spectroscopic study based on 41 spectra of 4 Her and 32 spectra of 88 Her, obtained over a period of 6 months. We estimate the rotational velocity of these s…
Study of candidate Be stars in the Magellanic Clouds using NIR photometry and optical spectroscopy
K. T. Paul, A. Subramaniam, B. Mathew +2
Mennickent et al.and Sabogal et al.identified a large number of Classical Be (CBe) candidates in the L&SMC based on their photometric variability using the OGLEII database. They cl…