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Browsing by Author "Maheswar, G"

Browsing by Author "Maheswar, G"

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  • India-TMT project—science instrumentation program 
    Sivarani, T; Ramya, S; Sriram, S; Divakar, Devika; Surya, Arun; Varshney, Hari Mohan; Kambala, Sudarshan; Hasan, Amirul; Prakash, A; Govinda, K. V; Viswanatha; Anupama, G. C; Maheswar, G; Ojha, D; Pandey, S. B; Pandey, J; Puravankara, M; Ramaprakash, A. N; Reddy, B. E; Shah, Sarang; Srianand, R; Subramaniam, A; Subramanian, S (Indian Academy of Sciences, 2022-12)
    The future of astronomy in the coming decades will be shaped by the upcoming three extremely large optical telescopes, the Thirty Meter Telescope (TMT), the Giant Magellan Telescope (GMT) and the European Large Telescope ...
  • Indian spectroscopic and imaging space telescope (INSIST): An optics design trade-off study 
    Sriram, S; Valsan, Vineeth; Subramaniam, A; Vishnu, Unni. C; Maheswar, G; Chand, Totan (Indian Academy of Sciences, 2023-12)
    Large ground and space-based surveys in optical and near-infrared (NIR) wavelengths will revolutionize astronomy in the coming decade. Unfortunately, no ultraviolet (UV) facilities are planned to complement these surveys, ...
  • Intermediate Galactic Latitude Starforming Region-CG 12 
    Maheswar, G; Manoj, P; Bhatt, H. C (Astronomical Society of India, 2002-09)
    Optical linear polarization measurements of stars seen projected towards CG 12, an intermediate latitude (b = 2P .1) starforming cloud, have been made. The results show that the polarization vectors of the majority of the ...
  • Intermediate Galactic Latitude Starforming Region-CG 12 
    Maheswar, G; Manoj, P; Bhatt, H. C (Astronomical Society of India, 2002-09)
    Optical linear polarization measurements of stars seen projected towards CG 12, an intermediate latitude (b = 2P .1) starforming cloud, have been made. The results show that the polarization vectors of the majority of the ...
  • Interstellar dust studies with TAUVEX 
    Maheswar, G; Muthu, C; Sujatha, N. V; Pandey, G; Bhatt, H. C; Kameswara Rao, N; Murthy, J (Astronomical Society of India, 2007-06)
    We propose to carry out studies on the properties of inter- stellar dust using TAUVEX. Through the multi-band TAUVEX observations, particularly with the use of filters optimized for extinction observations of the 2175 ° ...
  • Interstellar medium and star formation studies with the square kilometre array 
    Manoj, P; Vig, S; Maheswar, G; Kamath, U. S (Indian Academy of Sciences, 2016-12)
    Stars and planetary systems are formed out of molecular clouds in the interstellar medium. Although the sequence of steps involved in star formation are generally known, a comprehensive theory which describes the details ...
  • Investigation of Rocket Effect in BRC 18 using Gaia EDR3 
    Saha, Piyali; Maheswar, G; Ojha, D. K; Neha, Sharma (Oxford University Press on behalf of Royal Astronomical Society, 2022-02)
    Bright-rimmed clouds (BRCs) are ideal candidates to study radiation-driven implosion mode of star formation as they are potential sites of triggered star formation, located at the edges of HII regions, showing evidence ...
  • Investigation of rocket effect in bright-rimmed clouds using Gaia EDR3 
    Saha, Piyali; Maheswar, G; Ojha, D. K; Baug, Tapas; Neha, Sharma (Oxford University Press on behalf of Royal Astronomical Society, 2022-09)
    Bright-rimmed clouds (BRCs) are excellent laboratories to explore the radiation-driven implosion mode of star formation because they show evidence of triggered star formation. In our previous study, BRC 18 has been found ...
  • IRAS 05436-007 
    Maheswar, G; Bhatt, H. C (International Astronomical Union, 2004)
  • Magnetic field structure around cores with very low luminosity objects 
    Soam, A; Maheswar, G; Lee, C. W; Dib, S; Bhatt, H. C; Tamura, M; Kim, G (EDP Sciences, 2015-01)
    Aims. We carried out optical polarimetry of five dense cores, (IRAM 04191, L1521F, L328, L673-7, and L1014) which are found to harbour very low luminosity objects (VeLLOs; Lint ≲ 0.1 L⊙). This study was conducted mainly ...
  • Magnetic fields and young stellar objects in cometary cloud L1616 
    Saha, Piyali; Archana Soam; Baug, Tapas; Maheswar, G; Mondal, Soumen; Ghosh, Tuhin (Oxford University Press on behalf of Royal Astronomical Society, 2022-06)
    The Lynds’ Dark Nebula (LDN) 1615/1616 and CB 28 (hereafter L1616) together form a cometary globule located at an angular distance of about 8◦ west of the Orion OB1 association, aligned roughly along the east–west direction, ...
  • Magnetic fields in cometary globules - III. CG 12 
    Bhatt, H. C; Maheswar, G; Manoj, P (Royal Astronomical Society, 2004-02-11)
    We present results of optical linear polarization measurements of stars in the region of the relatively isolated cometary globule CG 12 in Centaurus at a galactic latitude b~= 21°. A polarization map representing the ...
  • Magnetic fields in cometary globules – IV. LBN 437 
    Soam, A; Maheswar, G; Bhatt, H. C; Won Lee, C; Ramaprakash, A. N (Oxford University Press on behalf of the Royal Astronomical Society, 2013-06-21)
    We present results of our R-band polarimetry of a cometary globule, LBN 437 (Gal 96-15, ℓ = 96°, b = −15°), to study the magnetic field geometry of the cloud. We estimated a distance of 360 ± 65 pc to LBN 437 (also one ...
  • Magnetic fields in multiple bright-rimmed clouds in different directions of H II region IC 1396 
    Soam, A; Maheswar, G; Lee, C. W; Neha, S; Kim, K (Oxford University Press on behalf of the Royal Astronomical Society, 2018-06)
    Bright-rimmed clouds (BRCs) form on the edges of H II regions affected by high-energy radiation from a central ionizing source. The UV radiation from the ionizing source results in compression and ionization, causing either ...
  • A method to determine distances to molecular clouds using near-IR photometry 
    Maheswar, G; Lee, C. W; Bhatt, H. C; Mallik, S. G. V; Dib, S (EDP Sciences, 2010-01)
    We aim to develop a method to determine distances to molecular clouds using JHK near-infrared photometry. Methods: The method is based on a technique that aids spectral classification of stars lying towards the fields ...
  • Non-emission-line young stars of intermediate mass 
    Manoj, P; Maheswar, G; Bhatt, H. C (Blackwell Publishing Ltd, 2002-08)
    We present optical spectra of four intermediate-mass candidate young stellar objects that have often been classified as Herbig Ae/Be stars. Typical Herbig Ae/Be emission features are not present in the spectra of these ...
  • Optical spectroscopic and 2MASS measurements of Stephenson Halpha stars 
    Maheswar, G; Manoj, P; Bhatt, H. C (European Southern Observatory, 2003-05)
    We present the results of spectroscopic observations for 52 objects from the list of Halpha emission stars of Stephenson (\cite{Ste86}). Out of six known T Tauri stars observed, five showed Halpha in emission and in one ...
  • Photometric distances to dark clouds: cometary globule CG 12 
    Maheswar, G; Manoj, P; Bhatt, H. C (Royal Astronomical Society, 2004-12)
    A method for determining distances to dark clouds and Bok globules based on broad-band optical and near-infrared photometry is presented. In this method, intrinsic colour indices of stars projected towards the direction ...
  • Photometric distances to nine dark globules 
    Maheswar, G; Bhatt, H. C (Blackwell Publishing, 2006-07)
    Distances to nine dark globules are determined by a method using optical (VRI) and near-infrared (near-IR) (JHK) photometry of stars projected towards the field containing the globules. In this method, we compute intrinsic ...
  • Polarization of seven MBM clouds at high Galactic latitude 
    Neha, S; Maheswar, G; Soam, A; Lee, C. W (Oxford University Press on behalf of the Royal Astronomical Society, 2018-06)
    We made R-band polarization measurements of 234 stars towards the direction of the MBM 33–39 cloud complex. The distance of the MBM 33–39 complex was determined as 120 ± 10 pc using polarization results and near-infrared ...

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