2011A&A...532A.124M


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.13CEST08:21:46

2011A&A...532A.124M - Astronomy and Astrophysics, volume 532A, 124-124 (2011/8-1)

The masses of the neutron and donor star in the high-mass X-ray binary IGR J18027-2016.

MASON A.B., NORTON A.J., CLARK J.S., NEGUERUELA I. and ROCHE P.

Abstract (from CDS):

We report near-infrared observations of the supergiant donor to the eclipsing high mass X-ray binary pulsar object IGR J18027-2016 . We aim to determine its spectral type and measure its radial velocity curve and hence determine the stellar masses of the components. ESO/VLT observations of the donor utilising the NIR spectrograph ISAAC were obtained in the H and K bands. The multi-epoch H band spectra were cross-correlated with RV templates in order to determine a radial solution for the system. The spectral type of the donor was confirmed as B0-1 I. The radial velocity curve constructed has a semi-amplitude of 23.8±3.1km/s. Combined with other measured system parameters, a dynamically determined neutron star mass of 1.4±0.2-1.6±0.3M is found. The mass range of the B0-B1 I donor was 18.6±0.8-21.8±2.4M. These lower and upper limits were obtained under the assumption that the system is viewed edge-o

Abstract Copyright:

Journal keyword(s): X-rays: binaries - binaries: eclipsing - stars: neutron - binaries: general - stars: individual: IGR J18027-2016 - stars: massive

CDS comments: Paragraph. 1 SAX J18027.7-2017 is a misprint for SAX J1802.7-2017.

Simbad objects: 19

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Number of rows : 19

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 PSR J1614-2230 Psr 16 14 36.5070 -22 30 31.207           ~ 278 1
2 HD 153716 * 17 04 24.7193850359 -57 42 43.784782932 5.06 5.625 5.727     B4IV 52 0
3 HD 164222 * 18 00 43.5963006059 -13 46 48.771116108   8.18 8.06     B3V 12 0
4 X Sgr X-3 LXB 18 01 32.3 -20 31 44           ~ 219 1
5 IGR J18029-2016 HXB 18 02 39.9 -20 17 13           B1b 71 1
6 2MASS J18024194-2017172 IR 18 02 41.9410241650 -20 17 17.318654623   17.4 16.4     ~ 4 1
7 HD 166787 V* 18 12 56.1530940624 -19 44 42.767151675 8.27 8.75 8.31 8.92   B0.5Ia 38 0
8 HD 167067 * 18 14 25.4878103988 -18 09 03.394958521   8.18 8.18     B5/7V 6 0
9 HD 168082 * 18 18 53.1306178500 -21 27 39.238411510   8.79 8.66     B9.5V 8 0
10 HD 169101 * 18 24 29.2534554172 -33 16 53.201133534   8.59 8.47     A0V 9 0
11 HD 170740 SB* 18 31 25.6939093858 -10 47 45.006621390 5.51 5.96 5.72     B2/3II 170 1
12 HD 171077 * 18 33 28.9241569284 -20 22 05.945160037   8.17 7.94     B9III 5 0
13 HD 174069 ** 18 48 59.0319030915 -08 27 31.199518638 7.37 7.90 7.80     B2Ib/II 29 0
14 HD 173994 * 18 50 41.3750131446 -47 46 47.082996760 6.21 6.910 7.059     B2IV 32 0
15 HD 175360 * 18 56 00.6737745242 -23 10 25.512942247   5.91 5.93     B5/7III 40 0
16 HD 179029 * 19 12 34.5412903219 -37 31 26.533195308   7.22 7.15     B5V 15 0
17 HD 180699 * 19 18 10.9435645921 -18 51 49.696078406   6.95 6.97     B5V 15 0
18 HD 192273 * 20 19 06.3404257091 -69 26 06.441060410 7.82 8.65 8.83     B2V 32 0
19 HD 195843 * 20 34 47.3914054163 -30 28 24.497263446   6.331 6.402     B8V 23 0

    Equat.    Gal    SGal    Ecl

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2020.07.13-08:21:46

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