This paper presents a deep investigation of two open clusters, Haffner 22 and Melotte 71, using astrometric and photometric data from Gaia EDR3. We identified 382 and 597 most probable cluster members with membership probability ...

The swath of the Himalayan ranges spans the vast diversity of climatic patterns varying from subtropical to boreal. This interaction between the tropical and extratropical weather systems combined with substantial modifications ...

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 display signatures of flash ionization (He ...

A new facility, the 4m International Liquid Mirror Telescope (ILMT) is currently being commissioned at the Devasthal Observatory, Nainital. ILMT will perform a deep survey of all the celestial objects falling in its field ...

Blue straggler stars (BSSs) in M67 have attracted attention from observations and theory to unravel their formation mechanisms. In the series of Ultra Violet Imaging Telescope (UVIT on AstroSat) study of Open clusters ...

The UBVRI CCD photometric data of open star cluster NGC 1513 are obtained with the 3.6-m Indo-Belgian Devasthal optical telescope (DOT). Analyses of the GAIA EDR3 astrometric data have identified 106 possible cluster ...

A measurable fraction (∼8 per cent) of recently discovered arcmin-size circular diffuse radio sources termed as odd radio circles or ORCs can be supernovae remnants in the intragroup medium, within the Local Group and its ...

We have investigated the grain alignment and dust properties towards the direction of the cluster NGC 2345 using the multiband optical polarimetric observations. For the majority of the stars, the observed polarization ...

The atmospheric turbulence characteristics such as energy dissipation rate (ε), eddy diffusivity (K), and refractive index structure parameter (Cn 2 ), which are inevitable to understand the vertical mixing and transport ...

We present a long term optical R band light-curve analysis of the gravitationally lensed blazar AO 0235+164 in the time span 1982–2019. Several methods of analysis lead to the result that there is a periodicity of ∼8.13 ...