Volume 462, Number 2, February I 2007
|Page(s)||699 - 702|
|Section||Stellar structure and evolution|
|Published online||02 November 2006|
Turn-over in pulsar spectra around 1 GHz
Institute of Astronomy, University of Zielona Góra, Lubuska 2, Zielona Góra, 65-265 Poland e-mail: firstname.lastname@example.org
2 National Centre for Radio Astrophysics, TIFR, Pune University Campus, Pune, India
Accepted: 25 October 2006
Aims.The main aim is to investigate the possibility of a high frequency turn-over in the radio spectrum of pulsars.
Methods.Using the GMRT, multi-frequency flux density measurements of several candidate pulsars have been carried out and their spectra have been extended to lower frequencies.
Results.We present the first direct evidence for turn-over in pulsar radio spectra at high frequencies. A total of 3 pulsars (including 2 new ones from this study) are now shown to have a turn-over frequency 1 GHz, and one is shown to have a turn-over at ~600 MHz.
Key words: pulsars: general
© ESO, 2007
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.