44 citations · 100 across the 13 of their papers we have counts for
15 papers
Long-term X-ray variability of the NLS1 Ark 564
Neha P R, Nikita S Arun, Savithri H. Ezhikode +4
We present a systematic spectral study of the X-ray emission from the Narrow- Line Seyfert 1 (NLS1) galaxy Ark 564 using Swift/XRT observations spanning sixteen years. The source e…
A comprehensive multi-wavelength study of two X-ray emitting Be stars
Hema Anilkumar, Blesson Mathew, Savithri H. Ezhikode +4
We present a multi-wavelength study of two X-ray-emitting Be stars, CXOU J052218.4+332820 (Star 1) and CXOU J052304.2+332846 (Star 2), identified from the LAMOST DR5 Hot emission-l…
Radio Follow-Up Observations of a Weak-Line Quasar Exhibiting Remarkable X-ray Variability
Ayushi Chhipa, M. Vivek, Nayana A. J. +6
SDSSJ1539+3954 (), a radio-quiet weak-line quasar (WLQ), exhibited exceptional X-ray variability in 20192020, with its X-ray flux increasing by over 20 times fro…
Modelling the energy dependent X-ray variability of Mrk 335
K. Akhila, Ranjeev Misra, Rathin Sarma +2
We present a technique which predicts the energy dependent fractional r.m.s for linear correlated variations of a pair of spectral parameters and apply it to an XMM-Newton observat…
Serendipitous detection of an intense X-ray flare in the weak-line T Tauri star KM Ori with SRG/eROSITA
Savithri H. Ezhikode, Hema Anilkumar, R. Arun +8
Weak-line T Tauri stars (WTTS) exhibit X-ray flares, likely resulting from magnetic reconnection that heats the stellar plasma to very high temperatures. These flares are difficult…
Long term X-ray spectral variations of the Seyfert-1 galaxy Mrk 279
K. Akhila, Ranjeev Misra, Savithri H. Ezhikode +1
We present the results from a long term X-ray analysis of Mrk 279 during the period 2018-2020. We use data from multiple missions - AstroSat, NuSTAR and XMM-Newton, for the purpose…