Showing results 1 to 20 of 28
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| Issue Date | Title | Author(s) |
| 2009-06-03 | The changing interstellar medium of massive elliptical galaxies and cosmic evolution of radio galaxies and quasars | Mangalam, A; Gopal-Krishna; Wiita, Paul J |
| 2002-09 | A comparative study of the intra-night optical variability of powerful AGNs | Stalin, C. S; Gopal-Krishna; Sagar, R; Wiita, P. J |
| 2004-12 | Expansion of radio galaxies in a cosmologically evolving medium: possible implications for the cosmic star-formation history | Barai, P; Gopal-Krishna; Osterman, M. A; Wiita, P. J |
| 2007-06 | Further evidence for intra-night optical variability of radio-quiet quasars | Goyal, Arti; Gopal-Krishna; Sagar, R; Anupama, G. C; Sahu, D. K |
| 2013-10-21 | Improved characterization of intranight optical variability of prominent AGN classes | Goyal, A; Gopal-Krishna; Wiita, P. J; Stalin, C. S; Sagar, R |
| 2012-08 | Intra-night optical variability of core dominated radio quasars: the role of optical polarization | Goyal, A; Gopal-Krishna; Wiita, P. J; Anupama, G. C; Sahu, D. K; Sagar, R; Joshi, S |
| 1996-08 | Intranight optical monitoring of optically selected bright quasars | Sagar, R; Gopal-Krishna; Wiita, P. J |
| 1995-06 | Intranight optical variability in optically selected QSOs | Gopal-Krishna; Sagar, R; Wiita, J. Paul |
| 2023-07 | Intranight optical variability of blazars and radio-quiet quasars using the ZTF survey | Negi, Vibhore; Gopal-Krishna; Joshi, Ravi; Chand, Hum; Wiita, Paul J; Navaneeth, P. K; Singh, Ravi S |
| 1999-02 | Multi-colour optical monitoring of the intra-day variable blazar S5 0716+71 | Sagar, R; Gopal-Krishna; Mohan, V; Pandey, A. K; Bhatt, B. C; Wagner, S. J |
| 2017-10 | Multi-epoch intranight optical monitoring of eight radio-quiet BL Lac candidates | Kumar, P; Gopal-Krishna; Stalin, C. S; Chand, H; Srianand, R; Petitjean, P |
| 1993-12 | Near-infrared and optical imaging of Q2345+007: The largest gravitationally lensed QSO system? | Gopal-Krishna; Yates, M; Wiita, P. J; Smette, A; Pati, A. K; Altieri, B |
| 2012-01-01 | On the injection spectrum of relativistic electrons in high-redshift radio galaxies | Gopal-Krishna; Mhaskey, Mukul; Mangalam, A |
| 2013-09 | On the Photometric Error Calibration for the Differential Light Curves of Point-like Active Galactic Nuclei | Goyal, Arti; Mhaskey, Mukul; Gopal-Krishna; Witta, P. J; Stalin, C. S; Sagar, R |
| 1994 | Optical microvariability in radio quiet quasars | Wiita, P. J; Gopal-Krishna; Sagar, R |
| 2010-02 | Optical variability of radio-intermediate quasars | Goyal, Arti; Gopal-Krishna; Joshi, S; Sagar, R; Wiita, Paul J; Anupama, G. C; Sahu, D. K |
| 2023-06 | A physically-motivated perspective of Fanaroff–Riley classification of radio galaxies | Gopal-Krishna; Wiita, Paul J; Joshi, Ravi; Patra, Dusmanta |
| 2018-10 | Polarimetric and spectroscopic study of radio quiet weak emission line quasars | Kumar, P; Chand, H; Srianand, R; Stalin, C. S; Petitjean, P; Gopal-Krishna |
| 2009-09 | Prolonged intranight optical quiescence of the classical BL Lac object PKS 0735+178 | Goyal, A; Gopal-Krishna; Anupama, G. C; Sahu, D. K; Sagar, R; Britzen, S; Karazous, M; Aller, M. F; Aller, H. D |
| 1978-12 | The Radio Source Projected Near the Absorption-Line QSO PHL 5200 | Gopal-Krishna |
