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AGN Feedback in Galaxy Groups: A Joint GMRT/X‐ray Study

Giacintucci, S.; Vrtilek, J. M.; O’Sullivan, E.; Raychaudhury, S.; David, L. P.; Venturi, T.; ATHREYA, RAMANA; Gitti, M. (AIP Publishing, 2009-12)

We present an ongoing study of 18 nearby galaxy groups, chosen for the availability of Chandra and/or XMM‐Newton data and evidence for AGN/hot intragroup gas interaction. We have obtained 235 and 610 MHz observations at ...
AGN feedback in groups of galaxies: a joint X‐ray/low‐frequency radio study

Giacintucci, S.; O’Sullivan, E.; Vrtilek, J. M.; Raychaudhury, S.; David, L. P.; Venturi, T.; ATHREYA, RAMANA; Gitti, M. (AIP Publishing, 2010-07)

We present an ongoing, low‐frequency radio/X‐ray study of 18 nearby galaxy groups, chosen for the evidence, either in the X‐ray or radio images, of AGN/intragroup gas interaction. We have obtained radio observations at 235 ...
Gated interferometric imaging of pulsars to detect off-pulse emission

ATHREYA, RAMANA; Basu, Rahul; Mitra, Dipanjan (IEEE, 2011-08)

We detected off-pulse emission from two pulsars, B0525+21 and B204516, at 325 MHz using the Giant Metrewave radio telescope. Using the instrument as a high time resolution interferometer and off-line gating we imaged the ...

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