| Issue Date | Title | Author(s) | Citation |
| Apr-2004 | Early optical and millimeter observations of GRB 030226 afterglow | Pandey, S.B.; Sagar, R.; Anupama, G.C.; Bhattacharya, D.; Sahu, D.K.; Castro-Tirado, A.J.; Bremer, M. | Astronomy and Astrophysics, 2004, Vol.417, p919-924 |
| Apr-2003 | A flattening in the optical light curve of SN 2002ap | Pandey, S.B.; Anupama, G.C.; Sagar, R.; Bhattacharya, D.; Sahu, D.K.; Pandey, J.C. | Monthly Notice of the Royal Astronomical Society, 2003, Vol.340, p375-380 |
| Mar-2001 | GRB 000926 and its optical afterglow: Another possible evidence for non-isotropic emission | Sagar, R.; Pandey, S.B.; Mohan, V.; Bhattacharya, D.; Castro-Tirado, A.J. | Bulletin of the Astronomical Society of India, 2001, Vol.29, p1-13 |
| Jun-2005 | Multiband optical photometry and bolometric light curve of the Type Ia supernova 2004S | Misra, Kuntal; Kamble, Atish P.; Bhattacharya, D.; Sagar, R. | Monthly Notices of the Royal Astronomical Society, 2005, Vol.360, Issue 2, p662-668. |
| May-2008 | Multiwavelength study of the transient X-ray binary IGR J01583+6713 | Kaur, Ramanpreet; Paul, Biswajit; Kumar, Brijesh; Sagar, R. | Monthly Notices of the Royal Astronomical Society, 2008, Vol.386, p2253 |
| Nov-2005 | Optical afterglow observations of GRB 021004 and GRB 030226 | Pandey, S.B.; Sagar, R.; Bhattacharya, D. | Astrophysical Sources of High Energy Particles and Radiation, AIP Conference Proceedings, 2005, Vol. 801, p137-138 |
| Nov-2005 | Optical afterglow observations of GRB 021004 and GRB 030226 | Pandey, S.B.; Sagar, R.; Bhattacharya, D. | AIP Conference Proceedings, Vol.801, 2005, p137-138 |
| Sep-2003 | The optical afterglow of the not so dark GRB 021211 | Pandey, S.B.; Anupama, G.C.; Sagar, R.; Bhattacharya, D.; Castro-Tirado, A.J.; Sahu, D.K.; Parihar, Padmakar; Prabhu, T.P. | Astronomy and Astrophysics, 2003, Vol.408, pL21-L24 |
| Jun-2001 | Optical and radio observations of the bright GRB 010222 afterglow: evidence for rapid synchrotron cooling? | Sagar, R.; Stalin, C.S.; Bhattacharya, D.; Pandey, S.B.; Mohan, V.; Castro-Tirado, A.J.; Pramesh Rao, A.; Trushkin, S.A.; Nizhelskij, N.A.; Bremer, M.; Castro Ceron, J.M. | Bulletin of the Astronomical Society of India, 2001, Vol.29, p91-106 |
| 1999 | Optical follow up of the GRB 990123 sources from UPSO, Naini Tal | Sagar, R.; Pandey, A.K.; Mohan, V.; Yadav, R.K.S.; Nilakshi; Bhattacharya, D.; Castro-Tirado, A.J. | Bulletin of the Astronomical Society of India, 1999, Vol.27, p3-7 |
| Sep-2001 | Optical follow-up of GRB afterglows from UPSO, Naini Tal | Pandey, S.B.; Sagar, R.; Mohan, V.; Pandey, A.K.; Bhattacharya, D.; Castro-Tirado, A.J. | Bulletin of the Astronomical Society of India, 2001, Vol.29, p459-461 |
| 2005 | Optical observations and multiband modelling of the afterglow of GRB 041006: Evidence of a hard electron energy spectrum | Misra, Kuntal; Resmi, L.; Pandey, S.B.; Bhattacharya, D.; Sagar, R. | Bulletin of the Astronomical Society of India, 2005, Vol.33, p487-497 |
| Mar-2009 | Optical observations of GRB 050401 afterglow : a case for double-jet model | Kamble, Atish P.; Misra, Kuntal; Bhattacharya, D.; Sagar, R. | Monthly Notices of the Royal Astronomical Society, Vol. 394(1), p214-220 |
| 2007 | Optical observations of GRB 060124 afterglow: a case for an injection break | Misra, Kuntal; Bhattacharya, D.; Sahu, D.K.; Sagar, R.; Anupama, G.C.; Castro-Tirado, A.J.; Guziy, S.S.; Bhatt, B.C. | Astronomy and Astrophysics, 2007, Vol.464, p.903-908 |
| Mar-2007 | Optical observations of GRB 060124 afterglow: A case for an injection break | Misra, Kuntal; Bhattacharya, D.; Sahu, D.K.; Sagar, R.; Anupama, G.C.; Castro-Tirado, A.J.; Guziy, S.S.; Bhatt, B.C. | Astronomy and Astrophysics, 2007, Vol.464, p903-908 |
| 2003 | 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, Padmakar; Castro-Tirado, A.J. | Bulletin of the Astronomical Society of India, 2003, Vol.31, p19-36 |
| 10-May-2007 | Quasi-periodic oscillations in XTE J0111.2-7317: Highest frequency among the HMXB pulsars | Kaur, Ramanpreet; Paul, Biswajit; Raichur, Harsha; Sagar, R. | Astrophysical Journal, 2007, Vol.660, p1409-1412 |
| 2003 | SN 2002ap, the hypernova of class Ic | Pandey, S.B.; Sahu, D.K.; Anupama, G.C.; Bhattacharya, D.; Sagar, R. | Bulletin of the Astronomical Society of India, 2003, Vol.31, p351-352 |
| Apr-2008 | A study of the long-term evolution of quasi-periodic oscillations in the accretion-powered X-ray pulsar 4U 1626-67 | Kaur, Ramanpreet; Paul, Biswajit; Kumar, Brijesh; Sagar, R. | Astrophysical Journal, 2008, Vol.676, p1184-1188 |
| Oct-2007 | Type IIP supernova SN 2004et: a multiwavelength study in X-ray, optical and radio | Misra, Kuntal; Pooley, Dave; Chandra, Poonam; Bhattacharya, D.; Ray, Alak K.; Sagar, R.; Lewin, Walter H.G. | Monthly Notices of the Royal Astronomical Society, 2007, Vol.381, p280-292. |
