40 citations · 97 across the 9 of their papers we have counts for
9 papers
Multi-wavelength study of the short term TeV flaring activity from the blazar Mrk 501 observed in June 2014
K K Singh, H Bhatt, S Bhattacharyya +3
In this work, we study the short term flaring activity from the high synchrotron peaked blazar Mrk 501 detected by the FACT and H.E.S.S. telescopes in the energy range 2-20 TeV dur…
The stellar contents and star formation in the NGC 7538 region
Saurabh Sharma, A. K. Pandey, D. K. Ojha +5
Deep optical photometric data on the NGC 7538 region were collected and combined with archival data sets from , 2MASS and {\it Spitzer} surveys in order to generate a new…
Unveiling the Nature of an X-ray flare from 3XMM J014528.9+610729: A candidate spiral galaxy
Himali Bhatt, Subir Bhattacharyya, Nilay Bhatt +1
We report an X-ray flare from 3XMM J014528.9+610729, serendipitously detected during the observation of the open star cluster NGC 663. The colour-colour space technique using optic…
X-ray flares observed from six young stars located in the region of star clusters NGC 869 and IC 2602
Himali Bhatt, J. C. Pandey, K. P. Singh +2
We present an analysis of seven intense X-ray flares observed from six stars (LAV 796, LAV 1174, SHM2002 3734, 2MASS 02191082+5707324, V553 Car, V557 Car) for the first time. These…
X-ray observations of eight young open star clusters : I. Membership and X-ray Luminosity
Himali Bhatt, J. C. Pandey, K. P. Singh +2
We present a detailed investigation of X-ray source contents of eight young open clusters with ages between 4 to 46 Myr using archival X-ray data from XMM-Newton. The probable clus…
The XMM-Newton view of the radio loud narrow line Seyfert1 galaxy PMN J0948+0022
Subir Bhattacharyya, Himali Bhatt, Nilay Bhatt +1
We analysed the archival XMM-Newton data of the radio loud narrow line Seyfert1 galaxy PMN J0948+0022 in the energy range 0.3--10.0 keV. The X-ray data reveal that the spectrum in…
Stellar contents and Star formation in the young cluster Stock 18
Himali Bhatt, Ram Sagar, J. C. Pandey
We have carried out deep (V21 mag) \ubvri photometric study of the star cluster Stock 18. These along with archival Infrared data have been used to derive the basic cluster p…
X-ray emission from O-type stars : DH Cep and HD 97434
Himali Bhatt, J. C. Pandey, Brijesh Kumar +2
We present X-ray emission characteristics of the massive O-type stars DH Cep and HD 97434 using archival XMM-Newton observations. There is no convincing evidence for short term var…
X-ray emission characteristics of two WR binaries : V444 Cyg and CD Cru
Himali Bhatt, J. C. Pandey, Brijesh Kumar +2
We present X-ray analysis of two Wolf-Rayet (WR) binaries: V444 Cyg and CD Cru using the data from observations with XMM-Newton. The X-ray light curves show the phase locked variab…