Bhal Chandra Joshi

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The clocklike properties of pulsars moving in the gravitational fields of their unseen neutron-star companions have allowed unique tests of general relativity and provided evidence for gravitational radiation. We report here the detection of the 2.8-second pulsar J0737-3039B as the companion to the 23-millisecond pulsar J0737-3039A in a highly relativistic(More)
The merger of close binary systems containing two neutron stars should produce a burst of gravitational waves, as predicted by the theory of general relativity. A reliable estimate of the double-neutron-star merger rate in the Galaxy is crucial in order to predict whether current gravity wave detectors will be successful in detecting such bursts. Present(More)
We report on a 10 ksec observation of the double pulsar system J0737–3039 obtained with the Chandra X-ray Observatory’s Advanced CCD Imaging Spectrometer. We detect the system as a point source with coordinates (J2000) RA = 073751. 23, Decl. = −303940. 9, making this the first double neutron star system to be detected at X-ray energies. Only 77 source(More)
We present the results of an 80 ks ChandraACIS-S observation of the double pulsar system J0737−3039 performed on 2006 June. Furthermore, we report on spectral, spatial and timing analysis of the combined X-ray observations performed so far for this system. Fitting a total of∼ 1100 photons,we show that the X-ray spectrum of the J0737–3039 system is very(More)
The Parkes multibeam pulsar survey has led to the discovery of more than 700 pulsars. In this paper, we provide timing solutions, flux densities and pulse profiles for 180 of these new discoveries. Two pulsars, PSRs J1736−2843 and J1847−0130 have rotational periods P > 6 s and are therefore among the slowest rotating radio pulsars known. Conversely, with P(More)
SETTING Seven intervention districts with intensified childhood tuberculosis (TB) case-finding strategies implemented by a non-governmental organisation and seven control districts under the National Tuberculosis Programme, Nepal. OBJECTIVES To assess the differences in childhood TB case registrations and case registration rates per 100 000 population(More)
Using monosomic analysis genes governing resistance in one wheat variety, ‘E5883’, against stem rust races 15C and 122, were located on specific chromosomes. Against race 15C, a major dominant gene, Sr6, was located on chromosome 2D of ‘E5883’ with minor modifiers found on chromosomes 4A and 6D. Against race 122, the presence of a recessive hemizygous(More)
University of Manchester, Jodrell Bank Observatory, Macclesfield, SK11 9DL, UK Università degli Studi di Bologna, Dipartimento di Astronomia, via Ranzani 1, 40127 Bologna, Italy INAF Osservatorio Astronomico di Cagliari, Loc. Poggio dei Pini, Strada 54, 09012 Capoterra, Italy INAF Osservatorio Astronomico di Bologna, via Ranzani 1, 40127 Bologna, Italy(More)