IIA Institutional Repository

Browsing by Author "Subramaniam, A"

Browsing by Author "Subramaniam, A"

Sort by: Order: Results:

  • Olszewski, E. W; Saha, A; Knezek, P; Subramaniam, A; de Boer, T; Seitzer, P (American Astronomical Society, 2009-12)
    Using imaging that shows 4 mag of main-sequence stars, we have discovered that the Galactic globular cluster NGC 1851 is surrounded by a halo that is visible from the tidal radius of 700 arcsec (41 pc) to more than 4500 ...
  • Singh, Kulinder Pal; Tandon, S. N; Agrawal, P. C; Antia, H. M; Manchanda, R. K; Yadav, J. S; Seetha, S; Ramadevi, M. C; Rao, A. R; Bhattacharya, D; Paul, B; Sreekumar, P; Bhattacharyya, S; Stewart, G. C; Hutchings, J; Subramaniam, A; Ghosh, S. K; Murthy, J; Pati, A. K; Kameswara Rao, N; Stalin, C. S; Girish, V; Sankarasubramanian, K; Vadawale, S; Bhalerao, V. B; Dewangan, G. C; Dedhia, D. K; Hingar, M. K; Katoch, T. B; Kothare, A. T; Mirza, I; Mukerjee, K; Shah, H; Shah, P; Mohan, Rekhesh; Sangal, A. K; Nagabhusana, S; Sriram, S; Malkar, J. P; Sreekumar, S; Abbey, A. F; Hansford, G. M; Beardmore, A. P; Sharma, M. R; Murthy, S; Kulkarni, R; Meena, G; Babu, V. C; Postma, J (SPIE--The International Society for Optical Engineering, 2014-07)
    ASTROSAT is India’s first astronomy satellite that will carry an array of instruments capable of simultaneous observations in a broad range of wavelengths: from the visible, near ultraviolet (NUV), far-UV (FUV), soft X-rays ...
  • 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 ...
  • Mathew, B; Subramaniam, A; Bhatt, B. C (Institute de Astronomia, 2010-02)
    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 slitless spectroscopy method and ...
  • Subramaniam, A; Gorti, U; Sagar, R; Bhatt, H. C (Astronomical Society of India, 2000)
  • Subramaniam, A; Mathew, B; Paul, K. T; Mennickent, R. E; Sabogal, B (Astronomical Society of India, 2012)
    We summarise our studies of the Classical Be (CBe) stars in our Galaxy and in the Large and Small Magellanic Clouds. We studied their properties using optical and near-IR photometry and optical spectroscopy. The CBe stars ...
  • Subramaniam, A; Adara, B (Astronomical Society of India, 2013-12)
    We present the classification and disk parameters of 50 Herbig Ae/Be stars using WISE and AKARI data. These stars have been classified into 4 groups based on the scheme proposed by Koenig et al. (2012) using WISE pass bands ...
  • Subramaniam, A (EDP Sciences, 2004-10)
    The stellar population and star clusters around six regions in the Large Magellanic Cloud (LMC) are studied to understand the correlation between star formation and cluster formation rates. We used the stellar data base ...
  • Gupta, A. C; Subramaniam, A; Sagar, R; Griffiths, W. K (EDP Sciences, 2000-09)
    CCD photometry of the northern open star cluster NGC 7790 has been carried out in BVI photometric passbands down to V ~ 21 mag for 1150 stars of which for ~ 700 stars, the data is obtained for the first time. We derive the ...
  • Subramaniam, A; Prabhu, T. P (Springer, 2007-05-24)
    The stellar radial velocity in the central region of the Large Magellanic Cloud (LMC) is used to estimate the radial velocity curve along various position angles (PA) including the line of nodes (LON). The central part of ...
  • Choudhury, Samyaday; Subramaniam, A; Piatti, A. E (IOP Publishing, 2015-02)
    We present deep Washington photometry of 45 poorly populated star cluster candidates in the Large Magellanic Cloud (LMC). We have performed a systematic study to estimate the parameters of the cluster candidates by matching ...
  • Subramanian, S; Subramaniam, A (EDP Sciences, 2009-03)
    Context: A systematic estimation of the line of sight depth in the disk and bar regions of the Large and Small Magellanic Clouds (LMC and SMC) using red clump stars is presented. Aims: We used the red clump stars from the ...
  • Snehalata Sahu; Subramaniam, A; Simunovic, Mirko; Postma, J; Cote, Patrick; Kameswara Rao, N; Geller, Aaron M; Leigh, Nathan; Shara, Michael; Puzia, Thomas H; Stetson, Peter B (IOP Publishing, 2019-05-01)
    We report the discovery of a hot white dwarf (WD) companion to a blue straggler star (BSS) in the globular cluster (GC) NGC 5466, based on observations from the Ultra-Violet Imaging Telescope (UVIT) on board AstroSat. ...
  • Nayak, P. K; Subramaniam, A; Subramanian, S; Sahu, S; Mondal, C; Cioni, Maria-Rosa L; Bell, C (Cambridge University Press, 2019-05)
    For the first time, we report the identification of NUV bright red clump (RC) stars and the extension of RC stars over two magnitudes both in color and magnitude axis in NUV vs (NUV – optical) color magnitude diagram. We ...
  • Sindhu, N; Subramaniam, A; Geller, A. M; Jadhav, Vikrant; Knigge, Christian; Simunovic, Mirko; Leigh, Nathan; Shara, Michael; Puzia, T. H (Cambridge University Press, 2019-05)
    We investigate the old open cluster M67 using ultraviolet photometric data of Ultra-Violet Imaging Telescope in multi-filter far-UV bands. M67, well known for the presence of several blue straggler stars (BSS), has been ...
  • Subramanian, S; Subramaniam, A (EDP Sciences, 2015-01)
    Context. The structure and evolution of the disk of the Small Magellanic Cloud (SMC) are traced by studying the Cepheids. Aims. We aim to estimate the orientation measurements of the disk, such as the inclination, i, and ...
  • George, K; Joseph, P; Cote, P; Ghosh, S. K; Hutchings, J. B; Mohan, Rekhesh; Postma, J; Sankarasubramanian, K; Sreekumar, P; Stalin, C. S; Subramaniam, A; Tandon, S. N (EDP Sciences, 2018-06)
    Context. The tidal tails of post-merger galaxies exhibit ongoing star formation far from their disks. The study of such systems can be useful for our understanding of gas condensation in diverse environments. Aims. The ...
  • Bhavya, B; Subramaniam, A; Kuriakose, V. C (Astronomical Society of India, 2012)
    Young Open Clusters have always been a platform for the star formation studies. It was assumed that all members in the cluster are coeval, on the other hand, recent studies show the presence of an age range among the members ...
  • Subramanian, S; Subramaniam, A (EDP Science, 2010-10)
    Aims. We used the red clump stars from the VI photometric data of the Optical Gravitational Lensing Experiment (OGLE III) survey and from the Magellanic Cloud Photometric Survey (MCPS) to estimate the structural parameters ...
  • Subramaniam, A; Prabhu, T. P (The American Astronomical Society, 2005-05)
    Stellar radial velocity data in the central region of the Large Magellanic Cloud (LMC) are used to estimate its radial velocity curve along various position angles (P.A.'s), including the line of nodes (LON). The central ...

Search DSpace

Browse

My Account