we propose to search for thermal dust emission from circumstellar discs, debris or clouds around nearby pulsars, that are the byproducts or progenitors of planet formation. it is suggested that planets can form or survive around old millisecond pulsars and intermediate age slow pulsars, although, so far, planets have only been detected orbiting millisecond pulsars. our main objective is to detect dust clouds or discs around neutron stars in which planets can form by a similar mechanism as in our solar system. in the case of the millisecond pulsar psr b1257+12, the disc most likely formed out of a companion star which either was dynamically disrupted or evaporated by the pulsar radiation. in the first case, the disc would surround a single, in the second, most likely case, a binary pulsar. discovery of a circum-pulsar disc around a single or binary millisecond pulsar could therefore allow to distinguish between the two models, and discover intermediate stages of evolution between evaporating binary pulsars and isolated millisecond pulsars with planetary bodies in quasi-circular orbits, such as psr b1257+12. in the case of ordinary radio pulsars, planet-forming discs may also exist, if some material of the envelope of the progenitor was not ejected in the supernova in which the radio pulsar formed, but fell back to form a post-supernova disc. detection of such discs, ideally for pulsars of different ages, would have implications not only for the prospects of forming planets but also for our understanding of the basic supernova explosion mechanism. in these different pulsars we aim to deduce the radiating mass of dust and to compare its physical properties to that of the dusty discs around main-sequence and post-main sequence stars revealed by iras and ground-based infra-red measurements.
Instrument
CAM01 , PHT32
Temporal Coverage
1996-03-16T12:38:02Z/1997-12-12T04:06:22Z
Version
1.0
Mission Description
The Infrared Space Observatory (ISO) was the world's first true orbiting infrared observatory. Equipped with four highly-sophisticated and versatile scientific instruments, it was launched by Ariane in November 1995 and provided astronomers world-wide with a facility of unprecedented sensitivity and capabilities for a detailed exploration of the Universe at infrared wavelengths.
European Space Agency, 1999, Search For Circumstellar Material Around Nearby Pulsars Thermal Emission Of Dusty Clouds Or Discs Around Neutron Stars, 1.0, European Space Agency, https://doi.org/10.5270/esa-kfrr4fq
