363 citations · 2.8k across the 82 of their papers we have counts for
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First light preparations of the 4m ILMT
Brajesh Kumar, Hitesh Kumar, Khushal Singh Dangwal +8
The 4m International Liquid Mirror Telescope (ILMT) is a zenith-pointing optical observing facility at ARIES Devasthal observatory (Uttarakhand, India). The first light preparatory…
Photometric and spectroscopic analysis of the Type II SN 2020jfo with a short plateau
B. Ailawadhi, R. Dastidar, K. Misra +34
We present high-cadence photometric and spectroscopic observations of SN~2020jfo in ultraviolet and optical/near-infrared bands starting from to days after the…
Optical studies of a bright Type Iax supernova SN 2020rea
Mridweeka Singh, Kuntal Misra, Devendra K. Sahu +14
We present optical photometric and spectroscopic analysis of a Type Iax supernova (SN) 2020rea situated at the brighter luminosity end of Type Iax supernovae (SNe). The light curve…
Astrometric and photometric standard candidates for the upcoming 4-m ILMT survey
Naveen Dukiya, Kuntal Misra, Bikram Pradhan +5
The International Liquid Mirror Telescope (ILMT) is a 4-meter class survey telescope that has recently achieved first light and is expected to swing into full operations by 1st Jan…
A nearby long gamma-ray burst from a merger of compact objects
E. Troja, C. L. Fryer, B. O'Connor +21
Gamma-ray bursts (GRBs) are flashes of high-energy radiation arising from energetic cosmic explosions. Bursts of long (>2 s) duration are produced by the core-collapse of massive s…
Observations of the luminous red nova AT 2021biy in the nearby galaxy NGC 4631
Y. -Z. Cai, A. Pastorello, M. Fraser +73
We present an observational study of the luminous red nova (LRN) AT\,2021biy in the nearby galaxy NGC\,4631. The field of the object was routinely imaged during the pre-eruptive st…
Panchromatic evolution of three luminous red novae: Forbidden hugs in pandemic times -- IV
A. Pastorello, G. Valerin, M. Fraser +77
We present photometric and spectroscopic data on three extragalactic luminous red novae (LRNe): AT2018bwo, AT2021afy, and AT2021blu. AT2018bwo was discovered in NGC45 (at 6.8 Mpc)…
Search for merger ejecta emission from late time radio observations of short GRBs using GMRT
Ankur Ghosh, C. S. Vaishnava, L. Resmi +4
Short gamma-ray bursts (GRBs) are the aftermath of compact binary mergers involving neutron stars. If the merger remnant is a millisecond magnetar instead of a black hole, a signif…
Multi-wavelength analysis of short GRB 201221D and its comparison with other high \& low redshift short GRBs
Dimple, K. Misra, D. A. Kann +9
We present a detailed analysis of short GRB 201221D lying at redshift . We analyse the high-energy data of the burst and compare it with the sample of short gamma-ray bur…
Photometric studies on the host galaxies of gamma-ray bursts using 3.6m Devasthal Optical Telescope
Rahul Gupta, Shashi Bhushan Pandey, Amit Kumar +6
In this article, we present multi-band photometric observations and analysis of the host galaxies for a sample of five interesting gamma-ray bursts (GRBs) observed using the 3.6m D…
The long-active afterglow of GRB 210204A: Detection of the most delayed flares in a Gamma-Ray Burst
Harsh Kumar, Rahul Gupta, Divita Saraogi +22
We present results from extensive broadband follow-up of GRB 210204A over the period of thirty days. We detect optical flares in the afterglow at 7.6 x 10^5 s and 1.1 x 10^6 s afte…
Evolution of A Peculiar Type Ibn Supernova SN 2019wep
Anjasha Gangopadhyay, Kuntal Misra, Griffin Hosseinzadeh +14
We present a high-cadence short term photometric and spectroscopic monitoring campaign of a type Ibn SN 2019wep, which is one of the rare SN Ibn after SNe 2010al and 2019uo to disp…
A global look into the world of interacting supernovae
Anjasha Gangopadhyay, Kuntal Misra, Koji Kawabata +2
Interacting supernovae (SNe) IIn and Ibn show narrow emission lines and have always been a mysterious and unsolved genre in SNe physics. We present a comprehensive analysis of the…
GRB 210217A: A short or a long GRB?
Dimple, Kuntal Misra, Ankur Ghosh +6
Gamma-ray bursts are traditionally classified as short and long bursts based on their value (the time interval during which an instrument observes to of g…
Probing into emission mechanisms of GRB 190530A using time-resolved spectra and polarization studies: Synchrotron Origin?
Rahul Gupta, S. Gupta, T. Chattopadhyay +47
Multi-pulsed GRB 190530A, detected by the GBM and LAT onboard \fermi, is the sixth most fluent GBM burst detected so far. This paper presents the timing, spectral, and polarimetric…