1997A&A...322..533B


Query : 1997A&A...322..533B

1997A&A...322..533B - Astronomy and Astrophysics, volume 322, 533-544 (1997/6-2)

On the progenitors of double neutron star systems.

BAGOT P.

Abstract (from CDS):

We discuss models for calculating the late stages of high-mass binary evolution. Our discussion is based on evolutionary calculations for initial binaries composed of a main-sequence star of mass range 8 to 30M with a neutron star companion. The evolution of the primary is followed with the grids of Schaller et al. (1992A&AS...96..269S) until the two stars interact, and simple analytic fits for helium and carbon-oxygen stars. For non-conservative mass transfer phases, two physical processes are considered: ejection of the excess overflowing matter in the form of jets from the neutron star and common envelope (CE) evolution. For each model, the code allows us to find the progenitors of the four known double neutron star systems (NS-NS) in the disk of the Galaxy. We show that the observed parameters of PSR 1913+16 and PSR 1534+12 are consistent with one or two stages of mass transfer. In contrast, the wide orbits of PSR 2303+46 and PSR J1518+49 are the most difficult to reproduce since a moderate orbital shrinkage is required through a CE phase. In particular, the likelihood of the formation of PSR J1518+49 appears to be very sensitive to the adopted formalism for CE-evolution.

Abstract Copyright:

Journal keyword(s): stars: close binaries - stars: evolution - stars: mass loss - neutron stars - WR stars

CDS comments: Table 2 : PSR J1518+49 = PSR J1518+4904

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 SN 1994I SN* 13 29 54.072 +47 11 30.50     12.9     SNIc 596 1
2 PSR J1518+4904 Psr 15 18 16.832 +49 04 34.19           ~ 165 1
3 PSR B1534+11 Psr 15 37 09.9603 +11 55 55.554           ~ 409 1
4 SS 433 HXB 19 11 49.5647697480 +04 58 57.827127648   16.3 13.0     A7Ib: 2011 4
5 PSR J1915+1606 Psr 19 15 27.99999 +16 06 27.4034     22.5     ~ 951 1
6 V* V1521 Cyg HXB 20 32 25.78 +40 57 27.9           WN4/5-6/7 1856 2
7 PSR J2305+4707 Psr 23 05 55.842 +47 07 45.32           ~ 213 1

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2022.05.20-18:23:01

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