2016MNRAS.455.3806B


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.09CEST07:08:19

2016MNRAS.455.3806B - Mon. Not. R. Astron. Soc., 455, 3806-3813 (2016/February-1)

Cool white dwarf companions to four millisecond pulsars.

BASSA C.G., ANTONIADIS J., CAMILO F., COGNARD I., KOESTER D., KRAMER M., RANSOM S.R. and STAPPERS B.W.

Abstract (from CDS):

We report on photometric and spectroscopic observations of white dwarf companions to four binary radio millisecond pulsars, leading to the discovery of companions to PSRs J0614-3329, J1231-1411 and J2017+0603. We place limits on the brightness of the companion to PSR J0613-0200. Optical spectroscopy of the companion to PSR J0614-3329 identifies it as a DA-type white dwarf with a temperature of Teff = 6460±80 K, a surface gravity logg = 7.0±0.2 cgs and a mass of MWD = 0.24±0.04 M. We find that the distance to PSR J0614-3329 is smaller than previously estimated, removing the need for the pulsar to have an unrealistically high γ-ray efficiency. Comparing the photometry with predictions from white dwarf cooling models allows us to estimate temperatures and cooling ages of the companions to PSRs J0613-0200, J1231-1411 and J2017+0603. We find that the white dwarfs in these systems are cool Teff < 4000 K and old ≳ 5 Gyr. Thin hydrogen envelopes are required for these white dwarfs to cool to the observed temperatures, and we suggest that besides hydrogen shell flashes, irradiation driven mass loss by the pulsar may have been important.

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

Journal keyword(s): binaries: close - stars: individual: PSR J0613-0200 - stars: individual: PSR J1231-1411 - stars: individual: PSR J2017+0603 - pulsars: general - white dwarfs

Simbad objects: 12

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Number of rows : 12

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 V* T Phe Mi* 00 30 26.2344686608 -46 24 33.373015476   12.46 11.43 12.43   M7e 64 0
2 PSR J0034-05 Psr 00 34 21.8281 -05 34 36.620           ~ 163 0
3 PSR J0437-47 Psr 04 37 15.99744 -47 15 09.7170           DC 786 0
4 PSR B0613-02.0 Psr 06 13 43.9759 -02 00 47.228           ~ 213 1
5 PSR J0614-3329 Psr 06 14 10.3479 -33 29 54.116           ~ 74 1
6 NAME GUM Nebula ISM 07 43 -42.1           ~ 393 1
7 PSR J0751+1807 Psr 07 51 09.1539 +18 07 38.335           ~ 261 1
8 PG 0942-029 HS* 09 45 11.8536195586 -03 09 21.033075924 12.537 13.714 14.012 14.144 14.308 sdB 46 0
9 GD 108 HS* 10 00 47.2462037648 -07 33 30.777365253 12.406 13.349 13.563 13.662 13.781 sdB 132 1
10 PSR J1023+0038 LXB 10 23 47.6840307966 +00 38 41.006983532     17.31     GV 330 0
11 PSR J1231-1411 Psr 12 31 11.3069 -14 11 43.628           ~ 93 0
12 PSR J2017+0603 Psr 20 17 22.7048 +06 03 05.585           ~ 79 1

    Equat.    Gal    SGal    Ecl

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2021.05.09-07:08:19

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