activity
20202026
most citedChandra Imaging of the Western Hotspot in the Radio Galaxy Pictor A: Image Deconvolution and Variability Analysis

13 citations · 36 across the 7 of their papers we have counts for

collaborators

7 papers

astro-ph.GA2026

Hubble Study of the Proper Motion of HST-1 in the Jet of M87

Rameshan Thimmappa, Joey Neilsen, Daryl Haggard +2

The radio galaxy M87 is well known for its jet, which features a series of bright knots observable from radio to X-ray wavelengths. The most famous of these, HST-1, exhibits superl…

astro-ph.HE2024

Chandra Study of the Proper Motion of HST-1 in the Jet of M87

Rameshan Thimmappa, Joey Neilsen, Daryl Haggard +2

The radio galaxy M87 is well known for its jet, which features a series of bright knots observable from radio to X-ray wavelengths. We analyze the X-ray image and flux variability…

astro-ph.HE2022★ 7 cited

X-ray Spectral Analysis of the Jet Termination Shock in Pictor A on Sub-Arcsecond Scales with Chandra

R. Thimmappa, L. Stawarz, J. Neilsen +2

Hotspots observed at the edges of extended radio lobes in high-power radio galaxies and quasars mark the position of mildly-relativistic termination shock, where the jet bulk kinet…

astro-ph.HE2021★ 11 cited

X-ray Emission of the -ray Loud Young Radio Galaxy NGC 3894

K. Balasubramaniam, L . Stawarz, C. C. Cheung +6

The radio source 1146+596 is hosted by an elliptical/S0 galaxy NGC\,3894, with a low-luminosity active nucleus. The radio structure is compact, suggesting a very young age of the j…

astro-ph.HE2021★ 2 cited

Complex Structure of the Eastern Lobe of the Pictor A Radio Galaxy: Spectral Analysis and X-ray/Radio Correlations

R. Thimmappa, Ł. Stawarz, U. Pajdosz-Śmierciak +2

Here we present detailed analysis of the distinct X-ray emission features present within the Eastern radio lobe of the Pictor A galaxy, around the jet termination region, utilising…

astro-ph.HE2020★ 3 cited

Chandra View of the LINER-type Nucleus in the Radio-Loud Galaxy CGCG 292-057: Ionized Iron Line and Jet-ISM Interactions

K. Balasubramaniam, L. Stawarz, V. Marchenko +5

We present an analysis of the new, deep (94\,ksec) {\it Chandra} ACIS-S observation of radio-loud active galaxy CGCG\,292057, characterized by a LINER-type nucleus and a complex…

astro-ph.HE2020★ 13 cited

Chandra Imaging of the Western Hotspot in the Radio Galaxy Pictor A: Image Deconvolution and Variability Analysis

R. Thimmappa, Ł. Stawarz, V. Marchenko +3

Here we present an analysis of the X-ray morphology and flux variability of the particularly bright and extended Western hotspot in the nearest powerful (FR II-type) radio galaxy,…