2016A&A...592A..52K


C.D.S. - SIMBAD4 rel 1.7 - 2019.08.22CEST23:15:18

2016A&A...592A..52K - Astronomy and Astrophysics, volume 592A, 52-52 (2016/8-1)

Do asteroids evaporate near pulsars? Induction heating by pulsar waves revisited.

KOTERA K., MOTTEZ F., VOISIN G. and HEYVAERTS J.

Abstract (from CDS):

Aims. We investigate the evaporation of close-by pulsar companions, such as planets, asteroids, and white dwarfs, by induction heating.
Methods. Assuming that the outflow energy is dominated by a Poynting flux (or pulsar wave) at the location of the companions, we calculate their evaporation timescales, by applying the Mie theory.
Results. Depending on the size of the companion compared to the incident electromagnetic wavelength, the heating regime varies and can lead to a total evaporation of the companion. In particular, we find that inductive heating is mostly inefficient for small pulsar companions, although it is generally considered the dominant process.
Conclusions. Small objects like asteroids can survive induction heating for 104yr at distances as small as 1R from the neutron star. For degenerate companions, induction heating cannot lead to evaporation and another source of heating (likely by kinetic energy of the pulsar wind) has to be considered. It was recently proposed that bodies orbiting pulsars are the cause of fast radio bursts; the present results explain how those bodies can survive in the pulsar's highly energetic environment.

Abstract Copyright: © ESO, 2016

Journal keyword(s): minor planets, asteroids: general - stars: winds, outflows - binaries: close - pulsars: general

Simbad objects: 6

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Number of rows : 6

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 V* CM Tau Psr 05 34 31.93830 +22 00 52.1758           F 4691 1
2 PSR B1257+12 Psr 13 00 03.1075 +12 40 55.155           ~ 462 1
3 PSR B1620-26 Psr 16 23 38.2218 -26 31 53.769     21.30     ~ 263 2
4 PSR J1719-14 Psr 17 19 10.073 -14 38 00.96           ~ 46 2
5 PSR J1933+2421 Psr 19 33 37.83 +24 36 39.6           ~ 124 0
6 PSR J1959+2048 Psr 19 59 36.7480 +20 48 14.599   20.4       ~ 675 2

    Equat.    Gal    SGal    Ecl

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2019.08.22-23:15:18

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