284 citations
- Aryabhatta Research Institute of Observational SciencesIN84 papers
- Indian Institute of AstrophysicsIN35 papers
- Deen Dayal Upadhyaya Gorakhpur UniversityIN23 papers
- University of DelhiIN17 papers
- Inter-University Centre for Astronomy and AstrophysicsIN16 papers
- Tata Institute of Fundamental ResearchIN15 papers
- Korea Astronomy and Space Science InstituteKR14 papers
- Chinese Academy of SciencesCN10 papers
- Osservatorio Astronomico di PadovaIT10 papers
- Instituto de Astrofísica de AndalucíaES9 papers
- Korea University of Science and TechnologyKR9 papers
- University of California, DavisUS9 papers
10 papers · 1 filter
Study of timing evolution from non-variable to structured large-amplitude variability transition in GRS 1915+105 using AstroSat
Divya Rawat, Mayukh Pahari, J S Yadav +6
In this work, we present a 90 ks continuous monitoring of the Galactic micro-quasar GRS 1915+105 with AstroSat when the source undergoes a major transition from a non-variabl…
Optical spectroscopy of star-forming regions in dwarf Wolf-Rayet galaxies
A. Paswan, A. Omar, S. Jaiswal
We present here spatially-resolved optical spectroscopic observations of four nearby dwarf Wolf-Rayet (WR) galaxies. The ages of the most recent starburst events in these galaxies…
Polarimetric and spectroscopic study of radio-quiet weak emission line quasars
Parveen Kumar, H. Chand, R. Srianand +3
A small subset of optically selected radio-quiet quasars showing weak or no emission lines may turn out to be the elusive radio-quiet BL Lac objects, or simply be radio-quiet QSOs…
SN 2015ba: A type IIP supernova with a long plateau
Raya Dastidar, Kuntal Misra, G. Hosseinzadeh +20
We present optical photometry and spectroscopy from about a week after explosion to 272 d of an atypical Type IIP supernova, SN 2015ba, which exploded in the edge-on galaxy I…
Magnetic fields in multiple bright-rimmed clouds in different directions of HII region IC1396 - II
Archana Soam, G. Maheswar, Chang Won Lee +2
Bright-rimmed clouds form on the edges of H II regions affected by the high energy radiation from a central ionizing source. The UV radiation from the ionizing source results in co…
SN 2015as: A low luminosity Type IIb supernova without an early light curve peak
Anjasha Gangopadhyay, Kuntal Misra, A. Pastorello +14
We present results of the photometric (from 3 to 509 days past explosion) and spectroscopic (up to 230 days past explosion) monitoring campaign of the He-rich Type IIb supernova (S…