Observations of Pulsars at 7 Millimeters

Details Observations of Pulsars at 7 Millimeters Observations of Pulsars at 7 Millimeters

Oct 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997apj...488..364k&link_type=abstract

Astrophysical Journal v.488, p.364

Astronomy and Astrophysics

Astronomy

18

Stars: Pulsars: Individual Alphanumeric: Psr B0329+54, Stars: Pulsars: Individual Alphanumeric: Psr B1929+10, Stars: Pulsars: Individual Alphanumeric: Psr B2021+51, Stars: Pulsars: Individual Alphanumeric: Psr B0355+54, Radiation Mechanisms: Nonthermal, Radio Continuum: Stars

Scientific paper

We report the first observations of a selected sample of pulsars at 43 GHz (7 mm). All four pulsars (B0329+54, B0355+54, B1929+10, and B2021+51) were successfully detected with pulse shapes and widths similar to those at lower frequencies. For B0329+54, we see the well-known profile mode changing behavior observed at low frequencies. The triple-frequency receiver system used for the observations allowed a spectral study spanning almost 30 GHz, using bands centered at 15, 23, and 43 GHz. Our results strengthen the claim for unusual spectral behavior of pulsars, i.e., a flattening (or possible upturn) of the pulsar spectrum at millimeter wavelengths.

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