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  • Multi-station observations of interplanetary scintillations 
    Ananthakrishnan, S; Kaufman, J. J (Astronomical Society of India, 1982-03)
    Solar wind velocity estimation using the method of multi-station interplanetary scintillation observations has been reviewed. It is shown that the interred model for the electron density fluctuations in the solar wind ...
  • Multi-wavelength afterglow observations of the high redshift GRB 050730 
    Pandey, S. B; Castro-Tirado, A. J; McBreen, S; Pérez-Ramírez, M. D; Bremer, M; Guerrero, M. A; Sota, A; Cobb, B. E; Jelínek, M; de Ugarte Postigo, A; Gorosabel, J; Guziy, S; Guidorzi, C; Bailyn, C. D; Muñoz-Darias, T; Gomboc, A; Monfardini, A; Mundell, C. G; Tanvir, N; Levan, A. J; Bhatt, B. C; Sahu, D. K; Sharma, S; Bogdanov, O; Combi, J. A (EDP Sciences, 2006-12)
    Context.GRB 050730 is a long duration high-redshift burst (z=3.967) that was discovered by Swift. The afterglow shows variability and was well monitored over a wide wavelength range. We present comprehensive temporal and ...
  • Multi-wavelength analysis of CME-driven shock and Type II solar radio burst band-splitting 
    Lata Soni, Shirsh; Ebenezer, E; lal Yadav, Manohar (Springer, 2021-03)
    It is now well established that Coronal Mass Ejections (CMEs) may produce shocks in near Sun and interplanetary medium. A Type-II radio burst is characterized by shock and associated emission with very slow frequency drift ...
  • Multi-wavelength observations of 3C 279 during the extremely bright gamma-ray flare in 2014 March-April 
    Paliya, Vaidehi S; Sahayanathan, S; Stalin, C. S (IOP Publishing, 2015-04)
    The well-studied blazar 3C 279 underwent a giant γ-ray outburst in 2014 March–April. The measured γ-ray flux is the highest detected from 3C 279 by the Fermi Large Area Telescope. Hour scale γ-ray flux variability is ...
  • Multi-wavelength photometric study of five contact binaries in the field of globular cluster M4 
    Devarapalli, Shanti Priya; Jagirdar, Rukmini; Pothuneni, Ravi Raja; Amente, Dereje Wakgari; Thomas, Vineet; Safonova, M; Brosch, Noah (Elsevier B.V, 2024-04)
    Binary stars are believed to be key determinants in understanding globular cluster evolution. In this paper, we present the Multi-band photometric analyses of five variables in the nearest galactic globular cluster M4, ...
  • Multi-wavelength studies of Galactic HII regions 
    Samal, M. R; Pandey, A. K; Ojha, D. K; Zinchenko, I; Bhatt, B. C; Ghosh, S. K; Pandey, B (Astronomical Society of India, 2010)
    We present the recent results obtained with multiwavelength observations of three Galactic HII regions. Our findings suggest these regions are likely candidates of triggered star formation, where star formation in their ...
  • Multi-wavelength study of a high velocity event near a sunspot 
    Lin, C. -H; Banerjee, D; O`Shea, E; Doyle, J. G (2006-05)
    Context: .Jets with velocities higher than 200 km s-1 are often observed in the X-ray spectral range in the solar atmosphere, however, very few such objects are observed in the EUV range. Aims: .We report on an eruptive ...
  • Multi-wavelength study of star formation In nearby galaxies 
    Mondal, Chayan (Indian Institute of Astrophysics, 2019-09)
    The galaxies in the Universe are changing constantly through secular evolution, mergers and interactions. Recent star forming activities in galaxies convey important message about the current evolutionary state of these ...
  • Multi-wavelength study of the young cluster NGC 1624 
    Jose, J; Pandey, A. K; Ogura, K; Ojha, D. K; Bhatt, B. C; Samal, M. R; Chauhan, N (Astronomical Society of India, 2010)
    We present preliminary results of deep optical and nearinfrared observations of the young cluster NCC 1624 associated with the H II region Sh2-212. Basic parameters of the cluster, young stellar population, initial mass ...
  • Multi-wavelength study of waves and solar atmospheric magneto-seismology 
    Mandal, Sudip (Indian Institute of Astrophysics, 2018-07)
    Corona, the outermost layer of the solar atmosphere, is made up with very hot and taneous plasma material. The density and temperature structuring of this layer, is largely inhomogenous. Temperatures, at certain locations, ...
  • Multiband optical variability of 3C 279 on diverse time scales 
    Aditi Agarwal; Cellone, Sergio A; Andruchow, I; Mammana, Luis; Singh, Mridweeka; Anupama, G. C; Mihov, B; Raj, A; eva-Mihova, L; Ozdonmez, Aykut; Ege, Ergun (Oxford University Press on behalf of the Royal Astronomical Society, 2019-09)
    We have monitored the flat spectrum radio quasar, 3C 279, in the optical B, V, R, and I passbands from 2018 February to 2018 July for 24 nights, with a total of 716 frames, to study flux, colour, and spectral variability ...
  • Multiband optical variability of 3C 279 on diverse time-scales 
    Agarwal, A; Cellone, S. A; Andruchow, Ileana; Mammana, Luis; Mridweeka Singh; Anupama, G. C; Mihov, B; Raj, A; Slavcheva-Mihova, L; Ozdonmez, Aykut; Ege, Ergun (Oxford University Press on behalf of the Royal Astronomical Society, 2019-09)
    We have monitored the flat spectrum radio quasar, 3C 279, in the optical B, V, R, and I passbands from 2018 February to 2018 July for 24 nights, with a total of 716 frames, to study flux, colour, and spectral variability ...
  • Multiband transit follow-up observations of five hot Jupiters with critical noise treatments: improved physical properties 
    Saha, Suman; Chakrabarty, Aritra; Sengupta, S (IOP Publishing, 2021-07-01)
    The most challenging limitation in transit photometry arises from the noises in the photometric signal. In particular, the ground-based telescopes are heavily affected by the noise due to perturbation in the Earth’s ...
  • Multicolor CCD Photometry and Stellar Evolutionary Analysis of NGC 1907, NGC 1912, NGC 2383, NGC 2384, and NGC 6709 Using Synthetic Color-Magnitude Diagrams 
    Subramaniam, A; Sagar, R (The American Astronomical Society, 1999-02)
    We present the first CCD photometric observations of NGC 2383 and NGC 2384 in B, V, R, and I, NGC 1912, NGC 6709 in B, V, and I and NGC 1907 in B and V passbands, reaching down to a limiting magnitude of V~20 mag for ~3300 ...
  • Multicolour broadband study of a lenticular galaxy : NGC 4753 
    Dewangan, G. C; Singh, K. P; Bhat, P. N (Astronomical Society of India, 2000)
    Based on VBT observations, we report multicolour broadband study of a lenticular galaxy, NGC 4753 with prominent dust lanes. The extinction curve derived for NGC 4753 is similar to the Galactic extinction curve. The dust ...
  • A multicolour CCD photometric and mass function study of the distant southern open star clusters NGC 3105, NGC 3603, Melotte 105, Hogg 15, NGC 4815, Pismis 20 and NGC 6253 
    Sagar, R; Munari, U; de Boer, K. S (Royal Astronomical Society, 2001-10)
    We derive cluster parameters and mass functions from new UBVRI CCD photometric observations of ~3500 stars reaching down to V~20mag for the distant southern open star clusters NGC 3105, NGC 3603, Melotte 105, Hogg 15, NGC ...
  • Multicolour deep CCD photometric study of the moderately young southern open star clusters NGC 3228, NGC 4103, NGC 5662 and NGC 6087 
    Sagar, R; Cannon, R. D (EDP Sciences, 1997-04)
    CCD observations in the U, B, V, R and I passbands have been used to generate colour-colour and deep colour-magnitude diagrams for the young open star clusters NGC 3228, NGC 4103, NGC 5662 and NGC 6087. The sample consists ...
  • Multicolour surface photometry of galaxies : Mrk 35 and Mrk 799 
    Chitre, A; Joshi, U. C; Srivastava, J. B (Astronomical Society of India, 1996)
    Imaging photometry of two peculiar galaxies Mrk 35 and Mrk 799 has been carried out using a CCD camera and broad band filters. Both the galaxies are highly disturbed and the morphologies of the galaxies are quite complex. ...
  • Multifrequency Spectra of EXOSAT Blazars. 
    Ghosh, K. K; Soundararajaperumal, S (University of Chicago Press, 1995-09)
    Blazars have been divided into two groups: radio-selected blazars (RBLs) and X-ray-selected blazars (XBLs). Results of the X-ray spectral analysis of 28 such blazars which were observed with EXOSAT are presented in this ...
  • A multifrequency study of the large radio galaxies 3C46 and 3C452 
    Nandi, S; Pirya, A; Pal, S; Konar, C; Saikia, D. J; Singh, M (Wiley-Blackwell, 2010-05)
    We present low-frequency observations starting from ∼150 MHz with the Giant Metrewave Radio Telescope, and high-frequency observations with the Very Large Array of two large radio galaxies 3C46 and 3C452. These observations ...

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