High-resolution quiescent X-ray Spectra of SZ Psc
Time-integrated high-resolution XMM-Newton Reflection Grating Spectrometer spectra of the quiescent segment have been shown. The top-left...
A Superflare on an Eclipsing Binary
A >1.3 days long duration X-ray Superflare has been observed on an Eclipsing binary SZ Psc. The superflare missed both the primary and...
Spottedness vs Flare number: Are they related?
In order to check whether the spottedness on the stellar surface is related to the occurrence rate of flare, we plotted the distribution...
XMM-Newton & Swift Phase-folded light curve of WR 25
The X-ray light curves as observed from XMM-Newton (MOS) and Swift (XRT) in the total (0.5 - 10.0 keV), hard (2.0 - 10.0 keV) and soft...
Phase-resolved Spectroscopy of Massive stars
X-ray spectra of WR 25 as observed from MOS and PN detectors along with the best fit folded 2T vapec model at nine epochs. WR 25 was...
Polarization vs Color for FGK dwarfs
The behaviour of degree of linear polarization P and (B − V) colour in B, V, R, and I bands is displayed in Fig. 5. The degree of...
Solar-type Surface Differential Rotation on a K-dwarf LO Peg
Top panel of the above figure shows the V-band light curve (solid triangles) along with the mean magnitude of each season (open circles)....
Surface Differential Rotation & Butterfly Diagram
The above gif image shows how the star like the Sun show a butterfly pattern, and how it is helpful to study Surface Differential...
Quasi-Periodic Pulsation in the decay phase of a flare on AB Dor
Oscillation periods versus damping times of monotonously-decaying quasi-harmonic quasi-periodic pulsation (QPP) occurring the decay...
From Swift BAT+XRT spectra, and Iron Kα fluorescence line estimating flare location
Modeling of 6.4 keV line flux for the seven time intervals during the decay of a flare on CC Eri. The solid horizontal lines show the...