2015MNRAS.453.4159T


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.15CEST23:48:09

2015MNRAS.453.4159T - Mon. Not. R. Astron. Soc., 453, 4159-4174 (2015/November-2)

Gemini optical observations of binary millisecond pulsars.

TESTA V., MIGNANI R.P., PALLANCA C., CORONGIU A. and FERRARO F.R.

Abstract (from CDS):

Millisecond pulsars (MSPs) are rapidly spinning neutron stars, with spin periods Ps ≲ 10 ms, which have been most likely spun up after a phase of matter accretion from a companion star. In this work, we present the results of the search for the companion stars of four binary MSPs, carried out with archival data from the Gemini South telescope. Based upon a very good positional coincidence with the pulsar radio coordinates, we likely identified the companion stars to three MSPs, namely PSR J0614-3329 (g = 21.95±0.05), J1231-1411 (g = 25.40±0.23), and J2017+0603 (g = 24.72±0.28). For the last pulsar (PSR J0613-0200) the identification was hampered by the presence of a bright star (g = 16±0.03) at ∼ 2 arcsec from the pulsar radio coordinates and we could only set 3σ upper limits of g = 25.0, r = 24.3, and i = 24.2 on the magnitudes of its companion star. The candidate companion stars to PSR J0614-3329, J1231-1411, and J2017+0603 can be tentatively identified as He white dwarfs (WDs) on the basis of their optical colours and brightness and the comparison with stellar model tracks. From the comparison of our multiband photometry with stellar model tracks we also obtained possible ranges on the mass, temperature, and gravity of the candidate WD companions to these three MSPs. Optical spectroscopy observations are needed to confirm their possible classification as He WDs and accurately measure their stellar parameters.

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

Journal keyword(s): stars: neutron - pulsars: general

Simbad objects: 9

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Number of rows : 9

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 PSR B0613-02.0 Psr 06 13 43.9759 -02 00 47.228           ~ 213 1
2 ESO 365-1 G 06 14 08.524 -33 29 56.28   15.96   14.64   ~ 15 0
3 PSR J0614-3329 Psr 06 14 10.3479 -33 29 54.116           ~ 75 1
4 NAME GUM Nebula ISM 07 43 -42.1           ~ 393 1
5 PSR J1231-1411 Psr 12 31 11.3069 -14 11 43.628           ~ 93 0
6 PSR J1903+0327 Psr 19 03 05.7937 +03 27 19.222           ~ 129 1
7 PSR J1959+2048 Psr 19 59 36.7480 +20 48 14.599   20.4       ~ 719 2
8 PSR J2017+0603 Psr 20 17 22.7048 +06 03 05.585           ~ 80 1
9 PSR J2222-0137 Psr 22 22 05.98560 -01 37 15.8100           ~ 34 0

    Equat.    Gal    SGal    Ecl

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2021.05.15-23:48:09

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