A Search for Cold Dust around Neutron Stars

Details A Search for Cold Dust around Neutron Stars A Search for Cold Dust around Neutron Stars

2004-06-26

arxiv.org/abs/astro-ph/0406602v1

Astron.Astrophys. 425 (2004) 763-766

Astronomy and Astrophysics

Astrophysics

5 pages, 1 figure, accepted for publication in A&A

Scientific paper

10.1051/0004-6361:20041263

We present observations of nine radio pulsars using the Heinrich-Hertz-Telescope at \lambda 0.87mm and the IRAM 30-m telescope at \lambda 1.2mm in search for a cold dust around these sources. Five of the program pulsars have been observed for the first time at the mm-wavelengths. The results are consistent with the absence of circumpulsar disks that would be massive enough ($\ge 0.01 M_{\odot}$) to support planet formation according to the scenarios envisioned for solar-type stars, but they do not exclude lower mass ($\le 10-100 M_{\oplus}$) disks for a wide range of grain sizes. These conclusions confirm the previously published results and, together with the current lack of further detections of pulsar planets, they suggest that planet formation around neutron stars is not a common phenomenon.

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