Browsing by Title

Sort by: Order: Results:

  • Magnetic Field Structure of Mercury 
    Hiremath, K. M (Elsevier B.V., 2012-04)
    Recently planet Mercury-an unexplored territory in our solar system-has been of much interest to the scientific community due to recent flybys of the spacecraft MESSENGER that discovered its intrinsic stationary and ...
  • Magnetic Fields and Fragmentation of Filaments in the Hub of California-X 
    Chung, Eun Jung; Lee, Chang Won; Kwon, Woojin; Tafalla, Mario; Kim, Shinyoung; Archana Soam; Cho, Jungyeon (American Astronomical Society, 2023-07-01)
    We present 850 μm polarization and C18O (3-2) molecular line observations toward the X-shaped nebula in the California molecular cloud using James Clerk Maxwell Telescope (JCMT)’s SCUBA-2/POL-2 and HARP instruments. The ...
  • Magnetic fields and the supply of low-frequency acoustic wave energy to the solar chromosphere 
    Rajaguru, S. P; Sangeetha, C. R; Tripathi, Durgesh (IOP Publishing, 2019-02-01)
    The problem of solar chromospheric heating remains a challenging one with wider implications for stellar physics. Several studies in the recent past have shown that small-scale inclined magnetic field elements channel ...
  • 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, ...
  • The magnetic fields around the cometary globules L328, L323, and L331 
    Kumar, Siddharth; Archana Soam; Roy, Nirupam (Oxford University Press on behalf of Royal Astronomical Society, 2023-09)
    This work presents the magnetic field geometry in a complex of three cometary (with head–tail morphology) globules, namely LDN 323, LDN 328, and LDN 331, using R-band polarization measurements of background stars. These ...
  • Magnetic fields in blazar Pc-scale jets — possible connection to spin rates of black holes 
    Kharb, P; Lister, M. L; Shastri, P (World Scientific Publishing Company, 2008-09)
    We re-examine the differences observed in the pc-scale magnetic field geometry of high and low optical polarization quasars (HPQs, LPRQs) using the MOJAVE sample. We find that, as previously reported, HPQ jets exhibit ...
  • Magnetic fields in cometary globules - II. CG 30-31 complex 
    Bhatt, H. C (The Royal Astronomical Society, 1999-09)
    Optical linear polarization measurements of stars in the region of the cometary globules CG 30-31 in Vela-Puppis are presented. A polarization map representing the geometry of the magnetic field in the cometary globule ...
  • 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 cometary globules. I. CG 22 
    Sridharan, T. K; Bhatt, H. C; Rajagopal, J (Royal Astronomical Society, 1996-04)
    We report first results from a program to study magnetic fields in cometary globules (CGs). These are clouds near massive stars showing a head-tail morphology. Linear optical polarization measurements on stars seen projected ...
  • Magnetic fields in molecular clouds 
    Ramaprakash, A. N; Gupta, R; Tandon, S. N (Astronomical Society of India, 1998)
  • 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 ...
  • Magnetic fields in the early universe 
    de Sabbata, V; Sivaram, C (1988)
  • Magnetic fields in the sun's interior: What do we know about them? 
    Choudhuri, A. R (Astronomical Society of India, 1996)
    The surface observations of the solar magnetic fields put some constraints on the possible magnetic configurations in the Sun's interior. It is currently believed that the solar magnetic fields are generated by a dynamo ...
  • Magnetic fluctuations and Hall magnetohydrodynamic turbulence in the solar wind 
    Krishan, V; Mahajan, S. M (The American Geophysical Union, 2004-11)
    It is shown that the framework of Hall magnetohydrodynamics (Hall-MHD), which can support three quadratic invariants and allows nonlinear states to depart fundamentally from the Alfvénic, is capable of reproducing in the ...
  • Magnetic flux in the solar convective envelope inferred from the initial observations of the sunspots 
    Hiremath, K. M; Lovely, M. R (University of Chicago Press, 2007-09)
    Different life spans of the sunspots suggest their origin at different depths and by measuring magnetic fluxes from their first observation on the surface, one can estimate the strength of magnetic flux at different anchoring ...
  • Magnetic flux tubes and activity on the sun 
    Hasan, S. S (Springer, 2003)
    Activity on the Sun is associated with magnetic fields, involving a complex interaction between the field and plasma. In this review I focus on three fundamental aspects of magnetic activity: (a) the generation, storage ...
  • Magnetic helicity and force-free properties of astrophysical magnetic fields 
    Prasad, Avijeet (Indian Institute of Astrophysics, 2015-05)
    Magnetic fields are ubiquitous in the universe and play an important role in variety of astrophysical phenomenon. It is thus very important to understand the origin, structure and strength of these astrophysical magnetic ...
  • Magnetic helicity and force-free properties of astrophysical magnetic fields 
    Avijeet Prasad (Indian Institute of Astrophysics, 2015-05)
    Magnetic fields are ubiquitous in the universe and play an important role in variety of astrophysical phenomenon. It is thus very important to understand the origin, structure and strength of these astrophysical magnetic ...
  • Magnetic helicity in galactic dynamos 
    Subramanian, K (Astronomical Society of India, 2002-09)
    Magnetic fields correlated on kiloparsec scales are seen in spiral galaxies. Their origin ~ould be due to amplification of a small seed field by a turbulent galactic dynamo. We review the current status of the galactic dynamo, ...

Search DSpace

Browse

My Account