2006ApJ...651.1092N


Query : 2006ApJ...651.1092N

2006ApJ...651.1092N - Astrophys. J., 651, 1092-1097 (2006/November-2)

An XMM-Newton search for X-ray emission from the microlensing event MACHO-96-BLG-5.

NUCITA A.A., DE PAOLIS F., INGROSSO G., ELIA D., DE PLAA J. and KAASTRA J.S.

Abstract (from CDS):

MACHO-96-BLG-5 was a microlensing event observed toward the bulge of the Galaxy with an exceptionally long duration of ∼970 days. The microlensing parallax fit parameters were used to estimate a lens mass M=6+10–3 M, corresponding to a distance d in the range 0.5-2 kpc. The upper limit on the absolute brightness for main-sequence stars of the same mass is less than 1 L, so the lens is a good black hole candidate. Such a black hole would accrete from the interstellar medium, thereby emitting in the X-ray band. Here we report the analysis of a deep XMM-Newton observation toward the MACHO-96-BLG-5 lens position. Only an upper limit (99.8% confidence level) to the X-ray flux from the lens position, 9.10x10–15 to 1.45x10–14 ergs/cm2/s in the 0.2-10 keV energy band, is obtained, allowing us to constrain the putative black hole's accretion parameters.

Abstract Copyright:

Journal keyword(s): Black Hole Physics - stars: individual (MACHO-96-BLG-5) - X-Rays: Stars

Nomenclature: Table 2: [NDI2006] N (Nos 1-6).

Simbad objects: 11

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Number of rows : 11
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 HD 16513 * 02 39 51.0553115760 +32 48 53.016059736   9.23 8.01     K0 12 0
2 PSR J1647-4552 Psr 16 47 10.18 -45 52 16.7           ~ 193 1
3 MACHO 98-BLG-6 * 17 57 32.8 -28 42 45     19.5     G5IV 20 0
4 TYC 6850-2082-1 * 18 04 41.9534200128 -27 30 35.435675520   11.99 12.17     ~ 1 0
5 MACHO 104.20906.3973 * 18 05 02.5 -27 42 17           ~ 26 0
6 TYC 6850-1264-1 * 18 05 03.5786157816 -27 33 30.665183184   12.03 10.78     ~ 1 0
7 OGLE BUL-SC33 164492 * 18 05 05.28 -28 34 41.7           ~ 35 0
8 CPD-27 6093 * 18 05 21.6103865448 -27 29 40.577111916   11.55 11.11     A 3 0
9 TYC 6850-1313-1 * 18 05 30.7469466720 -27 42 12.841077564   11.65 11.43     ~ 1 0
10 TYC 6850-2271-1 * 18 05 31.9528189392 -27 54 36.269187840   12.27 11.12     ~ 1 0
11 HD 165134 * 18 05 40.0724220696 -27 53 38.227535844   10.13 10.17     A0 6 0

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2023.01.29-17:50:41

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