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GMRT Observations of SNR G15.4+0.1/HESS J1818–154

Published online by Cambridge University Press:  29 January 2014

G. Castelletti ,
B. C. Joshi ,
M. P. Surnis ,
L. Supán  and
G. Dubner
G. Castelletti
Affiliation:
Institute of Astronomy and Space Physics (IAFE), Buenos Aires, Argentina. email: [email protected]
B. C. Joshi
Affiliation:
National Centre for Radio Astrophysics (NCRA), Pune, India.
M. P. Surnis
Affiliation:
National Centre for Radio Astrophysics (NCRA), Pune, India.
L. Supán
Affiliation:
Institute of Astronomy and Space Physics (IAFE), Buenos Aires, Argentina. email: [email protected]
G. Dubner
Affiliation:
Institute of Astronomy and Space Physics (IAFE), Buenos Aires, Argentina. email: [email protected]
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Abstract

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We report here on the first dedicated simultaneous imaging and pulsar observations towards the supernova remnant (SNR) G15.4+0.1, the possible counterpart of the very high energy (VHE) source HESS J1818–154. The observations were carried out using the Giant Metrewave Radio Telescope (GMRT) at 610 and 1400 MHz. Preliminary analysis of data suggests absence of pulsations towards the centroid of HESS J1818–154, with upper limits of 0.6 and 0.3 mJy at 610 and 1400 MHz, respectively. Analysis of data with a larger beam is in progress, which may confirm the presence of a putative pulsar and its wind nebula if it is offset from the centroid of HESS J1818–154.

Keywords

(ISM:) supernova remnants(stars:) pulsars: general(stars:) pulsars: individual (J1645–0317, J1939+2134, J1901–0906)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S296: Supernova Environmental Impacts , January 2013 , pp. 366 - 367
Copyright
Copyright © International Astronomical Union 2014 

References

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