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Browsing by Author "Eswaraiah, C."

Browsing by Author "Eswaraiah, C."

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  • Additional polarised standards in the fields of known bright standard stars 
    Soam, A.; Maheswar, G.; Eswaraiah, C. (Springer, 2013-12-19)
    We present the results based on broad-band (VRI) polarimetric observations of a number of stars that are present towards the fields of already known bright po- larised standard stars namely BD+59° 389, HD 19820, and ...
  • Broad-band optical polarimetric studies towards the Galactic young star cluster Berkeley 59 
    Eswaraiah, C.; Pandey, A. K.; Maheswar, G.; Chen, W. P.; Ojha, D. K.; Chandola, H. C. (2012)
    We present multiwavelength optical linear polarimetric observations of 69 stars towards the young open cluster Berkeley 59. The observations reveal the presence of three dust layers located at distances of ∼300, ∼500 and ...
  • Broad-band polarimetric follow-up of Type IIP SN 2012aw 
    Kumar, Brajesh; Pandey, S. B.; Eswaraiah, C.; Gorosabel, J. (Oxford, 2014)
    We present the results based on R-band polarimetric follow-up observations of the nearby (∼10 Mpc) Type II-plateau SN 2012aw. Starting from ∼10 d after the supernova (SN) explo- sion, these polarimetric observations cover ...
  • Deep optical survey of the stellar content of Sh2-311 region 
    Yadav, R. K., et al.; Pandey, A. K.; Sharma, S.; Eswaraiah, C. (Elsevier, 2015)
    The stellar content in and around Sh2-311 region have been studied using the deep optical observations as well as near-infrared (NIR) data from 2MASS. The region contains three clusters, viz. NGC 2467, Haffner 18 and ...
  • Galactic ‘Snake’ IRDC G11.11−0.12: a site of multiple hub–filament systems and colliding filamentary clouds 
    Dewangan, L. K.; Bhadari, N. K.; Maity, A. K.; Eswaraiah, C.; Sharma, Saurabh; Jadhav, O. R. (Monthly Notices of the Royal Astronomical Society, 2024-01)
    To probe star formation processes, we present a multiscale and multiwavelength investigation of the ‘Snake’ nebula/infrared dark cloud G11.11−0.12 (hereafter, G11; length ∼27 pc). Spitzer images hint at the presence of ...
  • Magnetic field structure inferred by near infrared polarization in the carina nebula and RCW57A 
    Su, B. H. et. al.; Eswaraiah, C.; Pandey, A. K. (2013)
    Carina Nebula (NGC3372) and RCW57A (NGC 3576) are among the brightest Galactic nebulae, with a wealth of massive stars and infrared excess stars, suggestive of recent and ongoing star formation. We present near-infrared ...
  • Main-sequence variable stars in young open cluster NGC 1893 
    Lata, S.; Yadav, R. K.; Pandey, A. K.; Richichi, Andrea; Eswaraiah, C.; Kumar, Brajesh; Kappelmann, Norbert; Sharma, Saurabh (Oxford, 2014-06-04)
    n this paper, we present time series photometry of 104 variable stars in the cluster region NGC 1893. The association of the present variable candidates to the cluster NGC 1893 has been determined by using (U − B)/(B − ...
  • A multiband optical polarimetric study of classical be stars with exceptionally large near-infrared excess 
    Lee, C-D; Eswaraiah, C.; Pandey, A. K.; Chen, W-P (2013)
    Polarimetric technique is an ef_cient tool to study the dust properties not only in the interstellar and intra-cluster medium, but also in circumstellar environments.We present new multiband (BV(RI)C) optical polarimetric ...
  • A multiwavelength polarimetric study towards the open cluster NGC1893 
    Eswaraiah, C.; Pandey, A. K.; Maheswar, G.; Medhi, B. J.; Pandey, J. C. (2011)
    We present multiwavelength linear polarimetric observations for 44 stars of the NGC1893 young open cluster region along with V-band polarimetric observations of stars of four other open clusters located between l ∼ 160◦ ...
  • Multiwavelength studies of galactic star forming regions 
    Eswaraiah, C. (ARIES, Nainital, 2013-03)
  • Multiwavelength Studies of H II region NGC 2467 
    Yadav, R. K.; Pandey, A. K.; Sharma, S.; Eswaraiah, C. (AIP Publishing LLC, 2013)
    We present the multiwavelength studies of the H II region Sh2-311 to explore the effects of massive stars on low-mass star formation. In this study we have used optical (UBVI) data from ESO 2.2m Wide Field Imager (WFI), ...
  • Optical photometric and polarimetric investigation of NGC 1931 
    Pandey, A. K. et. al.; Eswaraiah, C.; Sharma, S.; Yadav, R. K. (2013)
    We present optical photometric and polarimetric observations of stars toward NGC 1931 with the aim of deriving cluster parameters such as distance, reddening, age, and luminosity/mass function as well as understanding ...
  • Photometric and polarimetric studies towards NGC 1931 
    Eswaraiah, C.; Pandey, A. K.; Sharma, S.; Yadav, R.K. (AIP Publishing LLC, 2013)
    We investigated the dust properties and magnetic feld orientation towards the star cluster NGC 1931. Cluster members have been identified using both optical color-color as well as QV −UV stokes plane diagrams. Thus ...
  • A study of the starless dark cloud LDN 1570: Distance, dust properties, and magnetic field geometry 
    Eswaraiah, C.; Maheswar, G.; Pandey, A. K.; Jose, J.; Ramprakash, A. N.; Bhatt, H. C. (EDP Sciences, 2013)
    Aims. We aim to map the magnetic field geometry and to study the dust properties of the starless cloud, L1570, using multi-wavelength optical polarimetry and photometry of the stars projected on the cloud. Methods. The ...

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