ON THE NATURE OF OFF-PULSE EMISSION FROM PULSARS

Journal Article · Sat Oct 20 04:00:00 EDT 2012 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/758/2/91· OSTI ID:22086540

Basu, Rahul; Mitra, Dipanjan ^[1]; Athreya, Ramana ^[2]

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1. National Centre for Radio Astrophysics, P.O. Bag 3, Pune University Campus, Pune 411 007 (India)
2. Indian Institute of Science Education Research (IISER)-Pune, 900, NCL Innovation Park, Homi Bhabha Road, Pune, 411 008 (India)

In our earlier studies, we reported the detection of off-pulse emission from two long-period pulsars B0525+21 and B2045-16. The pulsars were observed at a single epoch using the 325 MHz frequency band of the Giant Meterwave Radio Telescope (GMRT). In this paper, we report a detailed study of the off-pulse emission from these two pulsars using multiple observations at two different frequencies, 325 MHz and 610 MHz bands of GMRT. We report detection of off-pulse emission during each observation and based on the scintillation effects and spectral index of off-pulse emission we conclude a magnetospheric origin. The magnetospheric origin of off-pulse emission gives rise to various interesting possibilities about its emission mechanism and raises questions about the structure of the magnetosphere.

• OSTI ID: 22086540
• Journal Information: Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 2 Vol. 758; ISSN ASJOAB; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
ASTROPHYSICS
DETECTION
INDEXES
MHZ RANGE
PHOTON EMISSION
PULSARS
PULSES
RADIO TELESCOPES
RADIOASTRONOMY
STELLAR MAGNETOSPHERES