
Ph.D. student at @astronomiczne at @JagiellonskiUni. Working on the evolution of radio galaxies.
Kraków, Poland
Joined January 2012
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#paperday Glad to share my 1st author paper got accepted in ApJ: "Discovery of 100 kpc twin jets in a peculiar S-shaped giant radio galaxy (SGRG)" We obtained best possible #uGMRT (for the 1st time) map by combining wide band 3 and 4 (300-750 MHz).
arxiv.org/abs/2405.14668 – at Krakow, Poland
#paperday 𝙎𝙚𝙧𝙚𝙣𝙙𝙞𝙥𝙞𝙩𝙤𝙪𝙨 𝘿𝙞𝙨𝙘𝙤𝙫𝙚𝙧𝙮 𝙤𝙛 𝙩𝙝𝙚 𝙇𝙖𝙧𝙜𝙚𝙨𝙩 (2.24 𝙈𝙥𝙘) 𝙆𝙣𝙤𝙬𝙣 𝙎𝙥𝙞𝙧𝙖𝙡-𝙃𝙤𝙨𝙩 𝙍𝙚𝙨𝙩𝙖𝙧𝙩𝙚𝙙 𝙍𝙖𝙙𝙞𝙤 𝙂𝙖𝙡𝙖𝙭𝙮 !
Paper accepted in @AandA_journal Letters, today on arxiv.org/abs/2505.06089
@astronomiczne
@PlotAstro
Sagar Sethi retweeted
Lights, camera, action! 🎬
The world's largest digital camera has been installed at NSF–DOE Rubin Observatory! 🤩
The LSST Camera was the final major component of the observatory. With it in place, Rubin officially enters its final phase of testing!
🔗: rubinobservatory.org/news/ls…
...and now published!
aanda.org/articles/aa/full_h…
🚀 #PaperDay Excited to share that our paper, "Study of Giant Radio Galaxies using Spectroscopic Observations from HCT," is accepted in A&A & now on arXiv! @pratikd13
First spectroscopic study of GRGs using India’s 2-m optical HCT @IIABengaluru
arxiv.org/abs/2502.06068
Sagar Sethi retweeted
Largest sample of restarted radio galaxies (#DDRGs) ever, from #LoTSS (@LOFAR)—accepted in @AandA_journal A&A! SAGAN V Giant Radio Galaxies #GRGs. arxiv.org/abs/2408.13607 #radioastronomy #SKA
🚀 #PaperDay Excited to share that our paper, "Study of Giant Radio Galaxies using Spectroscopic Observations from HCT," is accepted in A&A & now on arXiv! @pratikd13
First spectroscopic study of GRGs using India’s 2-m optical HCT @IIABengaluru
arxiv.org/abs/2502.06068
Generations of giant radio galaxy researchers in one frame.
Last month, it was a pleasure to deliver a seminar at the Jagiellonian University Observatory and interact with Prof. Machalski, Prof. Jamrozy, Dr. Kuźmicz, and @self_calibrated.
We had productive #GRGs discussions that set plans in motion for exciting future collaborations!
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Sagar Sethi retweeted
EMU radio galaxy zoo is now active on zooniverse , we need citizen scientists to help us classify our radio galaxies
zooniverse.org/projects/hong…
Sagar Sethi retweeted
Dive into our latest #SAGAN project study! @shishirs07 & I examine the prevalence of Giant Radio Galaxies (#GRGs)— the largest structures powered by supermassive black holes—within #Superclusters, the biggest structures in the Universe, and their interplay arxiv.org/abs/2405.19154
Sagar Sethi retweeted
Time to pick the newest "Astro Plot of the Week"!
Pick one:
- Plot from Guo et al. (arxiv.org/abs/2405.11711)
- Plot from Sethi et al. (arxiv.org/abs/2405.14668)
Poll (below) is open for two days - vote!
Sagar Sethi retweeted
Amazing images by @self_calibrated of S-shaped giant radio galaxy with #uGMRT 📡 data (arxiv.org/pdf/2405.14668). Congratulations to the entire team 👏
Last week in #SPARCS, interacted with people doing research on radio astronomy around the globe. Amazing conference thanks to organizers @tvern23 @cjriseley – at Bologna, Emilia Romagna
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Sagar Sethi retweeted
We are currently hosting the 7th LOFAR Data school. We'll be introducing the LOFAR system to new LOFAR community members, whether they are students, postdocs, or staff. We welcome our newest members into the LOFAR family!
#LOFAR #LOFARDataSchool #LDS
indico.astron.nl/event/315/o…
Sagar Sethi retweeted
If you have not yet seen it, we are returning to Socorro for in-person @TheNRAO Synthesis Imaging Summer School! (after detour to Charlottesville in 2023 and virtual covid times). Registration is now open! Send your postdocs, students, anyone can join: go.nrao.edu/siw
Sagar Sethi retweeted
RAD@home Citizen scientists discover a monster black hole spewing fire at another galaxy (Ref. MNRAS Letters) #RADatHomeIndia #CitizenScience #blackhole #astronomy @hotaananda @pratikd13 @MeghaRajoria @NCRA_Outreach @CFHTelescope @SKA_Africa radathomeindia.org/press-rel…
With the help of citizen scientists, a team of astronomers has discovered a unique black hole spewing a fiery jet at another galaxy. The black hole is hosted by a galaxy around one billion light years away from Earth, named RAD12.

ALT Image of the black hole within galaxy RAD12 spewing a large unipolar radio bubble on to its merging companion galaxy. RAD12 and the companion galaxy appear as large yellow blobs, with the radio bubble appearing between the two, taking on a mushroom like shape. The radio bubble appears hot pink and blurred around the edges.




























