SanjayBhatnagar's Home Page

About me

Who I appear to be	Who I really am
		Sanjay Bhatnagar Associate Scientist, National Radio Astronomy Observatory, Socorro, New Mexico, NM - 87801, USA	Phone: +(505) 835 7376 (W) E-mail: sbhatnag AT nrao DOT edu

• Currently, I am part of the CASA Scientific Software project. Apart from other things, I am involved in research and development for new imaging and calibration algorithms for EVLA and ALMA.
• My involvement in Radio Astronomy started at the National Center for Radio Astrophysics, Pune, India.  I was involved, from the beginning, in the building of the Giant Meterwave Radio Telescope (GMRT),
• I now work at the Array Operation Center (AOC), Socorro, New Mexico, USA of the National Radio Astronomy Observatory (NRAO).


• I got my PhD degree from TIFR/University of Pune, India. My thesis was the first thesis which used the GMRT for imaging at low frequencies. This involved debugging the instrument, developing offline and online software, debugging the correlater, etc. I ultimately used the GMRT in the imaging mode to study Galactic SNRs and ISM at low frequencies. Sensitive high resolution imaging at low frequencies is crucial for the study of SNRs which are brighter and less confused with thermal emission at low frequencies (SNR Paper-I, SNR Paper-II).
  
  We also developed the LeakyCal algorithm to measure antenna based polarization leakages using only the co-polar visibilities. I quite like the interpretation of the leakages on the Poincare Sphere and the connection to Pancharatnam Phase of optics that I learnt from R.Nityananda.


• I am a member and the co-chair of the SKA Imaging and Calibration Task Force. Meetings of this task force so far:

  ASTRON, Dwingeloo, Netherlands, 2005

  KAT, Cape Town, South Africa, 2006

Research interests	Research work	Publications/Talks	Software	Picture album
Astronomical techniques	Work in progress	Publications	Fussy	Others
Astronomy/astrophysics	Recent	Talks/presentations	User interface library
Scientific computing	GMRT related work		Slideshow/Photo album