21 citations · 54 across the 16 of their papers we have counts for
16 papers
Importance and Science Outcomes from the first XSPECT/XPoSat Workshop
Anuj Nandi, Rwitika Chatterjee, V. P. Shyam Prakash +49
This paper summarizes the science outcomes of the first Workshop on Data Analysis using observations from the XSPECT payload onboard the XPoSat, which brought together early-career…
Tracing the outburst decay of soft X-ray transients Aql X-1 and 4U 1608-52 with XSPECT
Rwitika Chatterjee, Vivek Kumar Agrawal, V. P. Shyam Prakash +2
XSPECT instrument on-board XPoSat mission is a soft X-ray spectrometer sensitive in the energy band 0.815 keV. XSPECT has observed several bright neutron star low mass X-ray bin…
Spectral nature of Sco X-1 observed using the X-ray SPECtroscopy and Timing (XSPECT) payload on-board XPoSat
V. P. Shyam Prakash, Vivek K. Agrawal, Rwitika Chatterjee +3
Scorpius X-1 is the brightest and first discovered X-ray source in the sky. Studying this source in the low-energy band has been challenging in the past due to its high brightness.…
XSPECT on-board XPoSat: Calibration and First Results
Rwitika Chatterjee, Koushal Vadodariya, Radhakrishna Vatedka +6
XPoSat is India's first X-ray spectro-polarimetry mission, consisting of two co-aligned instruments, a polarimeter (POLIX) and a spectrometer (XSPECT), to study the X-ray emission…
X-Ray spectroscopy and timing (XSPECT) experiment on XPoSat -- instrument configuration and science prospects
Radhakrishna V, Anurag Tyagi, Koushal Vadodariya +11
X-ray Polarimeter Satellite (XPoSat) with POLarimeter Instrument in X-rays (POLIX), is India's first spacecraft dedicated to study medium energy X-ray polarisation from celestial o…
Science Filter Characterization of the Solar Ultraviolet Imaging Telescope (SUIT) on board Aditya-L1
Janmejoy Sarkar, Rushikesh Deogaonkar, Ravi Kesharwani +12
The Solar Ultraviolet Imaging Telescope (SUIT) on board the Aditya-L1 mission is designed to observe the Sun across 200-400 nm wavelength. The telescope used 16 dichroic filters tu…
Simultaneous X-ray and optical polarization observations of the blazar Mrk 421
Athira M. Bharathan, C. S. Stalin, S. Sahayanathan +7
We present near-simultaneous X-ray and optical polarization measurements in the high synchrotron peaked (HSP) blazar Mrk 421. The X-ray polarimetric observations were carried out u…
The first detection of X-ray polarization in a newly discovered Galactic transient Swift\,J151857.0-572147
Santanu Mondal, S. Pujitha Suribhatla, Kaushik Chatterjee +2
We study the spectro-polarimetric properties of a newly discovered black hole X-ray binary Swift\,J151857.0-572147 jointly using {\it IXPE} and {\it NuSTAR} observations during Mar…
Mass assembly in massive star formation: a fragmentation study of ATLASGAL clumps
Jagadheep D. Pandian, Rwitika Chatterjee, Timea Csengeri +3
The mass assembly in star forming regions arises from the hierarchical structure in molecular clouds in tandem with fragmentation at different scales. In this paper, we present a s…
Spectro-polarimetric study to constrain accretion-ejection properties of MCG-5-23-16 using IXPE and NuSTAR observations
Santanu Mondal, Rwitika Chatterjee, Vivek K. Agrawal +1
We conducted a study on the X-ray polarization properties of MCG-5-23-16 by analyzing long-term monitoring data from {\it NuSTAR} jointly with {\it IXPE} observations made in May a…
First detection of X-ray polarization in Galactic ULX pulsar Swift J0243.66124 with {\it IXPE}
Seshadri Majumder, Rwitika Chatterjee, Kiran M. Jayasury +2
We report the results of first ever spectro-polarimetric analyses of the Galactic ultra-luminous X-ray pulsar Swift J0243.6 during the 2023 outburst using quasi-simultaneous…
Detection of X-ray Polarization in the High Synchrotron Peaked Blazar 1ES 1959+650
Athira M. Bharathan, C. S. Stalin, Rwitika Chatterjee +4
We report the measurement of X-ray polarization in the high synchrotron peaked blazar 1ES 1959+650. Of the four epochsof observations from the {\it Imaging X-ray Polarimetry Explor…
X-ray polarization observations of IC 4329A with IXPE: Constraining the geometry of the X-ray corona
Indrani Pal, C. S. Stalin, Rwitika Chatterjee +1
X-ray polarimetry is a powerful tool to probe the geometry of the hot X-ray corona in active galactic nuclei (AGN). Here, we present our results on the characterisation of the X-ra…
Spectro-polarimetric view of bright atoll source GX 9+9 using IXPE and AstroSat
Rwitika Chatterjee, Vivek K. Agrawal, Kiran M. Jayasurya +1
We have carried out the first spectro-polarimetric study of the bright NS-LMXB GX 9+9 using IXPE and AstroSat observations. We report a significant detection of polarization of $1.…
Detection of significant X-ray polarization from transient NS-LMXB XTE J1701-462 with IXPE and its implication on the coronal geometry
Kiran M. Jayasurya, Vivek K. Agrawal, Rwitika Chatterjee
In this paper, we performed a spectro-polarimetric analysis of the transient NS-LMXB XTE J1701-462 using IXPE, NICER, and NuSTAR data during its 2022 outburst. We report the signif…
Long-term XMM-Newton view of magnetar CXOU J010043.1721134: Comprehensive spectral and temporal results
Rwitika Chatterjee, Vivek K. Agrawal, Anuj Nandi
We present an in-depth analysis and results of eleven XMM-Newton datasets, spanning 2000 to 2016, of the anomalous X-ray Pulsar CXOU J010043.1721134 which has been classified as…