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20232026
most citedSN 2019nyk: A rapidly declining Type II supernova with early interaction signatures

8 citations

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7 papers · 1 filter

astro-ph.GA2025★ 3 cited

HALO I: Photometric continuum reverberation mapping of Fairall 9

Amit Kumar Mandal, Francisco Pozo Nuñez, Vikram Kumar Jaiswal +23

We investigate the origin of inter-band continuum time delays in active galactic nuclei (AGNs) to study the structure and properties of their accretion disks. We aim to measure the…

astro-ph.HE2025

SN 2021tsz: A luminous, short photospheric phase Type II supernova in a low-metallicity host

R. Dastidar, G. Pignata, N. Dukiya +14

We present the analysis of the luminous Type II Supernova (SN) 2021tsz, which exploded in a low-luminosity galaxy. It reached a peak magnitude of -18.88 0.13 mag in the b…

astro-ph.SR2025★ 2 cited

Chemical abundances and doppler imaging of the Ap Si/He-wk star HD 100357

Athul Dileep, Santosh Joshi, Sofya Alexeeva +11

We present the results of time-resolved photometry, abundance analysis and Doppler imaging of an Ap star, HD 100357. The {\it TESS} photometry revealed rotational modulation with a…

astro-ph.SR2025

Unveiling the Variability and Chemical Composition of AL Col

Surath C. Ghosh, Santosh Joshi, Samrat Ghosh +9

Using \tess\ short-cadence (120\,s) SAP flux, we identified a rotational frequency of 0.09655\, (\,d). Wavelet analysis reveals that while…

physics.atom-ph2025★ 2 cited

Spectrum of five-times ionized krypton: Kr VI

Aftab Alam, Abid Husain, K. Haris +2

This work describes the spectral analysis of five-times ionized krypton ion (Kr VI) using a high-resolution spectrogram recorded on a 3 m normal incidence vacuum spectrograph in th…

astro-ph.SR2025★ 2 cited

Long-term investigation of an open cluster Berkeley 65

Tarak Chand, Saurabh Sharma, Koshvendra Singh +7

We present a decade-long investigation of a poorly studied cluster, Berkeley 65 (Be 65), using deep optical data from the telescopes of ARIES, Nainital Observatory. We estimate its…

astro-ph.HE2025★ 4 cited

X-Ray Spectral Variability of Thirteen TeV High Energy Peaked Blazars with XMM-Newton

P. U. Devanand, Alok C. Gupta, V. Jithesh +2

We present a comprehensive study of the X-ray spectral variability observed in 13 TeV photon emitting high energy peaked BL Lacs(HBLs). These data come from 54 XMM-Newton EPIC-PN p…