Discovery of one new class in the light curve of GRS 1915+105 (2009)
Pahari, Mayukh, Pal, Sabyasachi
From the study of X-ray light curve and color-color diagram of the low mass X-ray binary GRS 1915+105, observed by on board proportional counter array (PCA) of Rossi X-ray Timing Explorer (RXTE), we...
Perez-Torres, Miguel A., Zandanel, Fabio, Guerrero, Martin A., Pal, Sabyasachi, Profumo, Stefano, Prada, Francisco, ...
We present high resolution 240 and 607 MHz GMRT radio observations, complemented with 74 MHz archival VLA radio observations of the Ophiuchus cluster of galaxies, whose radio mini-halo has been...
GCRT J1742-3001: A New Radio Transient Towards the Galactic Center (2008)
Hyman, Scott D., Wijnands, Rudy, Lazio, T. Joseph W., Pal, Sabyasachi, Starling, Rhaana, Kassim, Namir E., ...
We report the detection of a new transient radio source, GCRT J1742-3001, located ~1 degree from the Galactic center. The source was detected ten times from late 2006 to 2007 May in our 235 MHz...
The Local Group dwarf Leo T: H i on the brink of star formation (2008)
Ryan-Weber, Emma V., Begum, Ayesha, Oosterloo, Tom, Pal, Sabyasachi, Irwin, Michael J., Belokurov, Vasily, ...
We present Giant Meterwave Radio Telescope (GMRT) and Westerbork Synthesis Radio Telescope (WSRT) observations of the recently discovered Local Group dwarf galaxy, Leo T. The peak H i column density...
The Local Group dwarf Leo T: H i on the brink of star formation (2008)
Ryan-Weber, Emma V., Begum, Ayesha, Oosterloo, Tom, Pal, Sabyasachi, Irwin, Michael J., Belokurov, Vasily, ...
We present Giant Meterwave Radio Telescope (GMRT) and Westerbork Synthesis Radio Telescope (WSRT) observations of the recently discovered Local Group dwarf galaxy, Leo T. The peak H i column density...
The Local Group dwarf Leo T: HI on the brink of star formation (2007)
Ryan-Weber, Emma V., Begum, Ayesha, Oosterloo, Tom, Pal, Sabyasachi, Irwin, Michael J., Belokurov, Vasily, ...
We present Giant Meterwave Radio Telescope (GMRT) and Westerbork ynthesis Radio Telescope (WSRT) observations of the recently discovered Local Group dwarf galaxy, Leo T. The peak HI column density is...
Low Frequency GMRT Observations of Microquasar V4641 Sgr (2007)
Ishwara-Chandra, C. H., Pal, Sabyasachi, Rao, A. Pramesh
We have observed the micro-quasar V4641 Sgr (SAX J1819.3-2525) at the time of flare during May 2002, using the Giant Metrewave Radio Telescope at low radio frequencies (244 and 610 MHz). This is the...
A Faint, Steep Spectum Burst from the Radio Transient GCRT J1745-3009 (2007)
Hyman, Scott D., Roy, Subhashis, Pal, Sabyasachi, Lazio, T. Joseph W., Ray, Paul S., Kassim, Namir E., ...
GCRT J1745-3009 is a transient bursting radio source located in the direction of the Galactic center. It was discovered in a 330 MHz VLA observation from 2002 September 30--October 1 and subsequently...
Mass accretion rate of the galactic black hole A0620-00 in its quiescent state (2005)
Pal, Sabyasachi, Chakrabarti, Sandip K.
Our recent radio observation using the Giant Meter Radio Telescope (GMRT) of the galactic black hole transient A0620-00 at 1.280GHz revealed a micro-flare of a few milli-Jansky. Assuming an...