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Browsing Publications based on data from IAO, Hanle by Author "Bhatt, B. C"

Browsing Publications based on data from IAO, Hanle by Author "Bhatt, B. C"

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  • Age Sequence in Small Clusters Associated with Bright-Rimmed Clouds 
    Ogura, K; Chauhan, N; Pandey, A. K; Bhatt, B. C; Ojha, D; Itoh, Y (Astronomical Society of Japan, 2007-02)
    Bright-rimmed clouds (BRCs) found in HII regions are probable sites of triggered star formation due to compression by ionization/shock fronts, and it is hypothesized that star formation proceeds from the exciting star(s) ...
  • Be phenomenon in open clusters: results from a survey of emission-line stars in young open clusters 
    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 ...
  • Deep Impact, Stardust-NExT and the behavior of Comet 9P/Tempel 1 from 1997 to 2010 
    Meech, K. J; Pittichova, J; Yang, B; Zenn, A; Belton, M. J. S; A’Hearn, M. F; Bagnulo, S; Bai, J; Barrera, L; Bauer, J. M; Bedient, J; Bhatt, B. C; Boehnhardt, H; Brosch, N; Buie, M; Candia, P; Chen, W; Chesley, S; Chiang, P; Choi, Y; Cochran, A; Duddy, S; Farnham, T. L; Fernández, Y; Gutiérrez, P; Hainaut, O. R; Hampton, D; Herrmann, K; Hsieh, H; Kadooka, M. A; Kaluna, H; Keane, J; Kim, M; Kleyna, J; Krisciunas, K; Lauer, T. R; Lara, L; Licandro, J; Lowry, S. C; McFadden, L. A; Moskovitz, N; Mueller, B. E. A; Polishook, D; Raja, N. S; Riesen, T; Sahu, D. K; Samarasinha, N. H; Sarid, G; Sekiguchi, T; Sonnett, S; Suntzeff, N; Taylor, B; Tozzi, G. P; Vasundhara, R; Vincent, J; Wasserman, L; Webster-Schultz, B; Zhao, H (Elsevier B.V., 2011-05)
    We present observational data for Comet 9P/Tempel 1 taken from 1997 through 2010 in an international collaboration in support of the Deep Impact and Stardust-NExT missions. The data were obtained to characterize the nucleus ...
  • Discovery of Main-belt Comet P/2006 VW139 by Pan-STARRS1 
    Hsieh, H. H; Yang, Bin; Haghighipour, N; Kaluna, H. M; Fitzsimmons, A; Denneau, L; Novakovic, B; Jedicke, R; Wainscoat, R. J; Armstrong, J. D; Duddy, S. R; Lowry, S. C; Trujillo, C. A; Micheli, M; Keane, J. V; Urban, L; Riesen, T; Meech, K. J; Abe, S; Cheng, Yu-Chi; Chen, Wen-Ping; Granvik, M; Grav, T; Ip, Wing-Huen; Kinoshita, D; Kleyna, J; Lacerda, P; Lister, T; Milani, A; Tholen, D. J; Vereš, P; Lisse, C. M; Kelley, M. S; Fernández, Y. R; Bhatt, B. C; Sahu, D. K; Kaiser, N; Chambers, K. C; Hodapp, K. W; Magnier, E. A; Price, P. A; Tonry, J. L (IOP Publishing, 2012-03-20)
    The main-belt asteroid (300163) 2006 VW139 (later designated P/2006 VW139) was discovered to exhibit comet-like activity by the Pan-STARRS1 (PS1) survey telescope using automated point-spread-function analyses performed ...
  • GRB 021004: Optical Observations 
    Sahu, D. K; Bhatt, B. C; Anupama, G. C; Prabhu, T. P (NASA, 2002)
  • GRB 050502b, Optical observations 
    Bhatt, B. C; Ramya, S; Anupama, G. C (NASA, 2005)
  • Multi-observatory observations of night-side of Venus at 2.3 micron - atmospheric circulation from tracking of cloud features 
    Limaye, S; Warell, J; Bhatt, B. C; Fry, P. M; Young, E. F (Astronomical Society of India, 2006)
    Observations of Venus were made during 3 May to 11 May 2004 (117.4o - 125.7o phase angle) and 3 July to 10 July, 2004 (132.5o - 125.1o phase angle) from the 1.2-metre Mt. Abu Telescope at Gurushikhar, Himalayan Chandra ...
  • 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 ...
  • A multiwavelength census of stellar contents in the young cluster NGC 1624 
    Jose, J; Pandey, A. K; Ogura, K; Ojha, D. K; Bhatt, B. C; Samal, M. R; Chauhan, N; Sahu, D. K; Rawat, P. S (Wiley-Blackwell, 2011-03)
    We present a comprehensive multiwavelength analysis of the young cluster NGC 1624 associated with the H ii region Sh2-212 using optical UBVRI photometry, optical spectroscopy and GMRT radio continuum mapping along with the ...
  • A multiwavelength study of star formation in the vicinity of galactic H II region Sh 2-100 
    Samal, M. R; Pandey, A. K; Ojha, D. K; Ghosh, S. K; Kulkarni, V. K; Kusakabe, N; Tamura, M; Bhatt, B. C; Thompson, M. A; Sagar, R (The American Astronomical Society, 2010-05)
    We present multiwavelength investigation of morphology, physical-environment, stellar contents, and star formation activity in the vicinity of star-forming region Sh 2-100. It is found that the Sh 2-100 region contains ...
  • Multiwavelength Study of the NGC 281 Region 
    Sharma, S; Pandey, A. K; Pandey, J. C; Chauhan, N; Ogura, K; Ojha, D. K; Borrissova, J; Mito, H; Verdugo, T; Bhatt, B. C (Astronomical Society of Japan, 2012-10)
    We present a multiwavelength study of the NGC 281 complex which contains the young cluster IC 1590 at the center, using deep wide-field optical UBV Ic photometry, slitless spectroscopy along with archival data sets in ...
  • Near-infrared JH photometry of young open cluster Be 59 
    Sharma, S; Ogura, K; Pandey, A. K; Ojha, D. K; Bhatt, B. C (Astronomical Society of India, 2007)
    We present near-infrared J H photometry and optical slitless spectroscopy of stars in the field of the young cluster Be 59. The J /(J- H )colour-magnitude diagram of the cluster yields a distance modulus of (m - M )0= 10.0 ...
  • NGC 7419: a young open cluster with a number of very young intermediate mass pre-MS stars 
    Subramaniam, A; Mathew, B; Bhatt, B. C; Ramya, S (Blackwell Publishing, 2006-06)
    We present a photometric and spectroscopic study of the young open cluster NGC 7419, which is known to host a large number of classical Be stars for reasons not well understood. Based on CCD photometric observations of 327 ...
  • Night sky at the Indian Astronomical Observatory during 2000-2008 
    Stalin, C. S; Hegde, M; Sahu, D. K; Parihar, P. S; Anupama, G. C; Bhatt, B. C; Prabhu, T. P (Astronomical Society of India, 2008-09)
    This paper presents an analysis of the optical night sky brightness and extinction coefficient measurements in UBVRI at the Indian Astronomical Observatory (IAO), Hanle, during the period 2000–2008. They are obtained from ...
  • Night Sky Extinction Measurements at the Indian Astronomical Observatory, Hanle 
    Parihar, P. S; Sahu, D. K; Bhatt, B. C; Subramaniam, A; Anupama, G. C; Prabhu, T. P (Astronomical Society of India, 2003)
    We present the estimates of the night sky extinction at the Indian Astronomical Observatory. Also presented are the estimates of the night sky brightness. The extinction in the U band at IAO is found to be lower than the ...
  • Optical observations of GRB 060124 afterglow: a case for an injection break 
    Misra, K; Bhattacharya, D; Sahu, D. K; Sagar, R; Anupama, G. C; Castro-Tirado, A. J; Guziy, S. S; Bhatt, B. C (EDP Sciences, 2007-03)
    Aims.We present broad band optical afterglow observations of a long duration GRB 060124 using the 1.04-m Sampurnanand Telescope at ARIES, Nainital and the 2.01-m HCT at IAO, Hanle, including the earliest ground-based ...
  • Optical observations of the bright long duration peculiar GRB 021004 afterglow. 
    Pandey, S. B; Sahu, D. K; Resmi, L; Sagar, R; Anupama, G. C; Bhattacharya, D; Mohan, V; Prabhu, T. P; Bhatt, B. C; Pandey, J. C; Parihar, P. S; Castro-Tirado, A. J (Astronomical Society of India, 2003)
    The CCD magnitudes in Johnson B,V and Cousins R and I photometric passbands are determined for the bright long duration GRB 021004 afterglow from 2002 October 4 to 16 starting ~ 3 hours after the γ - ray burst. Light curves ...
  • Optical photometry of the GRB 010222 afterglow 
    Cowsik, R; Prabhu, T. P; Anupama, G. C; Bhatt, B. C; Sahu, D. K; Ambika, S; Padmakar; Bhargavi, S. G (Astronomical Society of India, 2001)
    The optical afterglow of GRB 010222 was observed using the recently installed 2-m telescope at the Indian Astronomical Observatory, Hanle, and the telescopes at the Vainu Bappu Observatory, Kavalur, beginning ~ 0.6 day ...
  • Photometric study of distant open clusters in the second quadrant: NGC 7245, King 9, King 13 and IC 166 
    Subramaniam, A; Bhatt, B. C (Blackwell Publishing, 2007-05)
    We present a UBV CCD photometric study of four open clusters, NGC 7245, King 9, IC 166 and King 13, located between l = 90° and 135°. All are embedded in a rich Galactic field. NGC 7245 and King 9 are close together in the ...
  • Photometric study of distant open clusters in the second quadrant: NGC 7245, King 9, King 13 and IC 166 
    Subramaniam, A; Bhatt, B. C (Royal Astronomical Society, 2007-04)
    We present a UBV CCD photometric study of four open clusters, NGC 7245, King 9, IC 166 and King 13, located between l = 90° and 135°. All are embedded in a rich Galactic field. NGC 7245 and King 9 are close together in the ...

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