2015MNRAS.447.2817P

Query : 2015MNRAS.447.2817P

2015MNRAS.447.2817P - Mon. Not. R. Astron. Soc., 447, 2817-2820 (2015/March-1)

Settling accretion on to isolated neutron stars from interstellar medium.

POPOV S.B., POSTNOV K.A. and SHAKURA N.I.

Abstract (from CDS):

We apply the model of subsonic settling accretion on to isolated neutron stars accreting from the interstellar medium (AINS). We show that in this regime the expected mean X-ray luminosity from AINS turns out to be two to three orders of magnitude as small as the maximum possible Bondi value, i.e. 1027-1028 erg/s. The intrinsically unstable character of settling accretion due to long plasma cooling time leads to regular appearance of X-ray flares with a duration of about 1 h and a maximum luminosity of about the Bondi value, ∼ 1031 erg/s. This feature can be used to distinguish AINS from other dim X-ray sources. With the sensitivity of the forthcoming all-sky X-ray surveys the expected number of the potentially detectable AINS can be from a few to 10.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): accretion, accretion discs - stars: neutron

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Local Bubble ISM ~ ~           ~ 1059 0

Query : 2015MNRAS.447.2817P

Basic data :
NAME Local Bubble -- Interstellar Medium Object
Other object types: otypes_help 		ISM ()
ICRS coord. (ep=J2000) : 		No Coord.

Identifiers (2) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NAME Local Bubble NAME Local Interstellar Bubble

References (1059 between 1850 and 2026) (Total 1059)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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