Zobrazeno 1 - 10
of 160
pro vyhledávání: '"Vadawale, Santosh"'
Autor:
Chand, Swadesh, Dewangan, Gulab C., Zdziarski, Andrzej A., Bhattacharya, Dipankar, Mithun, N. P. S., Vadawale, Santosh V.
We perform broadband ($0.7-100$ keV) spectral analysis of five hard state observations of the low-mass back hole X-ray binary GX~339--4 taken by AstroSat during the rising phase of three outbursts from $2019$ to $2022$. We find that the outburst in 2
Externí odkaz:
http://arxiv.org/abs/2406.10607
Autor:
Tiwari, Neeraj K., Vadawale, Santosh V., Mithun, N. P. S., Vaishnava, C. S., Saiguhan, Bharath
The imaging performance and sensitivity of an X-ray telescope when observing astrophysical sources are primarily governed by the optical design, geometrical uncertainties (figure errors, surface roughness, and mirror alignment inaccuracies), and the
Externí odkaz:
http://arxiv.org/abs/2405.06343
Autor:
Saraogi, Divita, Aditya, J Venkata, Bhalerao, Varun, Bala, Suman, Balasubramanian, Arvind, Mate, Sujay, Chattopadhyay, Tanmoy, Gupta, Soumya, Prasad, Vipul, Waratkar, Gaurav, K, Navaneeth P, Gopalakrishnan, Rahul, Bhattacharya, Dipankar, Dewangan, Gulab, Vadawale, Santosh
The Cadmium Zinc Telluride Imager (CZTI) aboard AstroSat has good sensitivity to Gamma Ray Bursts (GRBs), with close to 600 detections including about 50 discoveries undetected by other missions. However, CZTI was not designed to be a GRB monitor and
Externí odkaz:
http://arxiv.org/abs/2401.16404
Autor:
Bala, Suman, Mate, Sujay, Mehla, Advait, Sastry, Parth, Mithun, N. P. S., Palit, Sourav, Chanda, Mehul Vijay, Saraogi, Divita, Vaishnava, C. S., Waratkar, Gaurav, Bhalerao, Varun, Bhattacharya, Dipankar, Tendulkar, Shriharsh, Vadawale, Santosh
Publikováno v:
Journal of Astronomical Telescopes, Instruments, and Systems, Vol. 9, Issue 4, 048002 (October 2023)
The proposed Daksha mission comprises of a pair of highly sensitive space telescopes for detecting and characterising high-energy transients such as electromagnetic counterparts of gravitational wave events and gamma-ray bursts (GRBs). Along with spe
Externí odkaz:
http://arxiv.org/abs/2306.16781
Autor:
Chattopadhyay, Tanmoy, Kumar, Abhay, Rao, A. R., Bhargava, Yash, Vadawale, Santosh V., Ratheesh, Ajay, Dewangan, Gulab, Bhattacharyay, Dipankar, S., Mithun N. P., Bhalerao, Varun
Publikováno v:
Astrophysical Journal Letters, Volume 960, Number 1, L2, 2023 December 29
Cygnus X-1, the well-known accreting black hole system, exhibits several observational features hinting at an intricate interplay between the accretion disk, its atmosphere known as the corona and the putative relativistic jet. It has been extensivel
Externí odkaz:
http://arxiv.org/abs/2306.04057
Autor:
Kayal, Abhijit, Singh, Veeresh, Ricci, Claudio, Mithun, N. P. S., Vadawale, Santosh, Dewangan, Gulab, Gandhi, Poshak
Publikováno v:
Monthly Notices of the Royal Astronomical Society (2023)
The circumnuclear material around Active Galactic Nuclei (AGN) is one of the essential components of the obscuration-based unification model. However, our understanding of the circumnuclear material in terms of its geometrical shape, structure and it
Externí odkaz:
http://arxiv.org/abs/2304.10972
Autor:
Mondal, Biswajit, Vadawale, Santosh V., Del Zanna, Giulio, Mithun, N. P. S., Sarkar, Aveek, Mason, Helen E., Janardhan, P., Bhardwaj, Anil
The First Ionization Potential (FIP) bias, whereby elemental abundances for low FIP elements in different coronal structures vary from their photospheric values and may also vary with time, has been widely studied. In order to study the temporal vari
Externí odkaz:
http://arxiv.org/abs/2301.03519
Autor:
Mondal, Biswajit, Klimchuk, James A, Vadawale, Santosh V., Sarkar, Aveek, Del Zanna, Giulio, Athiray, P. S., Mithun, N. P. S., Mason, Helen E., Bhardwaj, A.
Small-scale impulsive events, known as nanoflares, are thought to be one of the prime candidates that can keep the solar corona hot at its multi-million Kelvin temperature. Individual nanoflares are difficult to detect with the current generation ins
Externí odkaz:
http://arxiv.org/abs/2301.02519
Publikováno v:
The Astrophysical Journal, 944:68 (11pp), 2023 February 10
X-ray spectroscopy of galactic black hole binaries serve as a powerful tool to gain an overall understanding of the system. Not only can the properties of the accretion disk be studied in detail, the fundamental properties of the black hole can also
Externí odkaz:
http://arxiv.org/abs/2212.05293
Autor:
Bhalerao, Varun, Vadawale, Santosh, Tendulkar, Shriharsh, Bhattacharya, Dipankar, Rana, Vikram, Adalja, Hitesh Kumar L., Belatikar, Hrishikesh, Bhaganagare, Mahesh, Dewangan, Gulab, Ghodgaonkar, Abhijeet, Goyal, Shiv Kumar, Gunasekaran, Suresh, Guruprasad, P J, Koyande, Jayprakash G., Kulkarni, Salil, Kutty, APK, Ladiya, Tinkal, Marla, Deepak, Mate, Sujay, Mithun, N. P. S., Mote, Rakesh, Narang, Sanjoli, Nema, Ayush, Nimbalkar, Sudhanshu, Pai, Archana, Palit, Sourav, Patel, Arpit, Patel, Jinaykumar, Pradeep, Priya, Ramachandran, Prabhu, Saiguhan, B. S. Bharath, Saraogi, Divita, Sawant, Disha, Shanmugam, M., Sharma, Piyush, Shetye, Amit, Singh, Shreeya, Singh, Nishant, Singhal, Akshat, Sreekumar, S., Sridhar, Srividhya, Srinivasan, Rahul, Tallur, Siddharth, Tiwari, Neeraj K., Vadladi, Amrutha Lakshmi, Vaishnava, C. S., Vishwakarma, Sandeep, Waratkar, Gaurav
We present Daksha, a proposed high energy transients mission for the study of electromagnetic counterparts of gravitational wave sources, and gamma ray bursts. Daksha will comprise of two satellites in low earth equatorial orbits, on opposite sides o
Externí odkaz:
http://arxiv.org/abs/2211.12055