2016MNRAS.458.3012W

Query : 2016MNRAS.458.3012W

2016MNRAS.458.3012W - Mon. Not. R. Astron. Soc., 458, 3012-3026 (2016/May-3)

Black hole, neutron star and white dwarf candidates from microlensing with OGLE-III.

WYRZYKOWSKI L., KOSTRZEWA-RUTKOWSKA Z., SKOWRON J., RYBICKI K.A., MROZ P., KOZLOWSKI S., UDALSKI A., SZYMANSKI M.K., PIETRZYNSKI G., SOSZYNSKI I., ULACZYK K., PIETRUKOWICZ P., POLESKI R., PAWLAK M., ILKIEWICZ K. and RATTENBURY N.J.

Abstract (from CDS):

Most stellar remnants so far have been found in binary systems, where they interact with matter from their companions. Isolated neutron stars and black holes are difficult to find as they are dark, yet they are predicted to exist in our Galaxy in vast numbers. We explored the OGLE-III data base of 150 million objects observed in years 2001-2009 and found 59 microlensing events exhibiting a parallax effect due to the Earth's motion around the Sun. Combining parallax and brightness measurements from microlensing light curves with expected proper motions in the Milky Way, we identified 13 microlensing events which are consistent with having a white dwarf, neutron star or a black hole lens and we estimated their masses and distances. The most massive of our black hole candidates has 9.3 M☉ and is at a distance of 2.4 kpc. The distribution of masses of our candidates indicates a continuum in mass distribution with no mass gap between neutron stars and black holes. We also present predictions on how such events will be observed by the astrometric Gaia mission.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): gravitational lensing: micro - stars: black holes - stars: neutron - white dwarfs - Galaxy: general

VizieR on-line data: <Available at CDS (J/MNRAS/458/3012): table2.dat table3.dat table5.dat>

Simbad objects: 62

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Number of rows : 62
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 OGLE-2005-SMC-001 BD? 00 40 28.50 -73 44 46.1           ~ 21 0
2 OGLE BLG354.3 45010 * 17 35 25.9336282096 -23 31 00.764904324           ~ 3 0
3 OGLE-2002-BLG-061 * 17 35 55.9557565495 -27 16 02.198235659           G7III 5 0
4 OGLE BLG129.6 16369 * 17 42 58.7800711212 -34 11 13.317996292           ~ 2 0
5 OGLE BLG138.7 140195 * 17 45 11.3017837260 -33 38 55.146234819           ~ 3 0
6 OGLE BLG342.5 73806 * 17 46 25.6694905920 -22 51 37.340254080           ~ 3 0
7 OGLE J174635.42-334619.7 * 17 46 35.4512779656 -33 46 19.818950340           ~ 6 0
8 OGLE BLG130.4 125656 * 17 47 27.0233094156 -33 58 08.487018796           ~ 3 0
9 OGLE-2005-BLG-351 LP? 17 47 34.7702596943 -34 25 50.440044367           ~ 3 0
10 OGLE BLG194.7 63636 * 17 49 44.3417416128 -29 28 34.294737432           ~ 2 0
11 OGLE BLG122.1 184151 EB* 17 50 04.5871084824 -34 58 15.366956088           ~ 5 0
12 OGLE BUL-SC40 434222 * 17 51 10.76 -33 03 44.1           K3III 12 0
13 OGLE BLG180.7 173170 * 17 51 21.9599625154 -30 41 01.163271216           ~ 2 0
14 OGLE BLG155.8 123452 * 17 51 25.6614586672 -32 38 06.154670575           ~ 2 0
15 OGLE BLG180.6 142446 * 17 51 38.9572955856 -30 32 16.957526424           ~ 2 0
16 OGLE BLG194.3 95955 * 17 51 48.9038013348 -29 17 52.845231467           ~ 2 0
17 OGLE BLG155.1 109582 * 17 52 23.3476273332 -32 37 57.800665261           ~ 2 0
18 OGLE BLG195.5 141274 * 17 53 16.57 -28 58 49.8           ~ 1 0
19 OGLE BLG101.7 52163 * 17 53 28.4708153102 -29 57 44.670304099           ~ 2 0
20 OGLE BLG171.4 87121 * 17 53 34.6079274337 -31 01 12.382259146           ~ 3 0
21 OGLE BLG195.2 8006 * 17 53 55.6543629127 -29 22 41.070315466           ~ 2 0
22 OGLE BLG156.8 68730 * 17 54 04.49 -32 40 38.2           ~ 1 0
23 OGLE BLG195.2 18171 * 17 54 05.53 -29 23 11.0           ~ 1 0
24 OGLE BLG172.8 614 * 17 54 11.8131870319 -31 31 57.979897039           ~ 2 0
25 OGLE BLG172.5 160833 * 17 54 55.0445402134 -31 00 40.478352902           ~ 3 0
26 OGLE BLG156.2 110020 * 17 55 05.17 -32 28 51.4           ~ 3 0
27 OGLE BLG102.7 44461 * 17 55 59.4426642244 -29 38 28.773778610           ~ 4 0
28 OGLE BLG205.5 12205 * 17 56 07.08 -28 41 37.3           ~ 1 0
29 OGLE BLG134.5 193547 * 17 56 59.7848618238 -33 55 15.582752707           ~ 2 0
30 OGLE BLG205.3 159237 * 17 57 23.1385167102 -28 46 31.916596631           ~ 7 0
31 OGLE BLG157.3 1531 * 17 57 54.73 -32 25 31.9           ~ 1 0
32 OGLE BLG188.5 139006 * 17 57 58.60 -29 48 48.4           ~ 1 0
33 OGLE BLG223.5 115009 * 17 58 27.1272032330 -27 26 00.821906951           ~ 3 0
34 OGLE BLG104.7 157693 * 17 58 29.5627602602 -29 30 54.326319281           ~ 2 0
35 OGLE BLG182.3 104094 * 17 58 30.9044569717 -30 34 07.783902160           ~ 2 0
36 OGLE BLG104.1 148712 * 17 59 44.3164558014 -29 41 07.349037816           ~ 3 0
37 OGLE BLG158.5 38090 * 18 00 20.3045415168 -32 15 11.302538742           ~ 3 0
38 OGLE BLG167.8 67944 * 18 02 41.8369966607 -32 04 39.584520182           ~ 2 0
39 OGLE BLG224.3 40806 * 18 02 53.1425655110 -27 41 15.609590882           ~ 2 0
40 OGLE BLG225.8 163880 * 18 03 52.3913883517 -27 54 01.302541815           ~ 3 0
41 OGLE BLG208.5 131806 * 18 04 04.0191347883 -28 38 38.792600122           ~ 2 0
42 OGLE BLG234.6 218982 * 18 04 45.7097432264 -26 59 15.304433228           ~ 2 0
43 OGLE BLG196.1 118200 * 18 04 48.7890170232 -29 40 31.200958992           ~ 3 0
44 OGLE BUL-SC33 164492 * 18 05 05.28 -28 34 41.7           ~ 38 0
45 MOA 2007-BLG-379 ** 18 05 24.43 -26 25 18.8           ~ 58 1
46 OGLE BLG185.7 91655 * 18 05 34.74 -30 44 20.2           ~ 2 0
47 OGLE BLG226.8 198790 * 18 05 51.80 -27 52 23.3           ~ 2 0
48 OGLE BLG249.2 92350 * 18 06 06.2998708938 -25 59 12.788720874           ~ 2 0
49 OGLE BLG208.3 222797 * 18 06 21.7539357612 -28 44 46.218936562           ~ 2 0
50 OGLE BLG249.2 60315 * 18 06 34.6686717159 -26 01 16.024026268           ~ 9 0
51 OGLE BLG197.6 98763 * 18 06 59.3315409232 -29 23 39.665697142           ~ 3 0
52 OGLE BLG241.2 105532 * 18 07 05.68 -26 36 33.1           ~ 1 0
53 OGLE BLG197.1 101151 * 18 07 08.0994214941 -29 39 33.989447757           ~ 2 0
54 OGLE BLG226.1 1251 * 18 07 08.81 -27 59 22.5           ~ 1 0
55 OGLE BLG197.3 171180 * 18 07 33.3838957138 -29 20 16.184746924           ~ 2 0
56 OGLE BLG197.1 69448 * 18 07 41.4508585069 -29 42 39.138569150           ~ 3 0
57 OGLE BLG242.7 31173 * 18 08 00.4225965151 -26 39 15.384687497           ~ 3 0
58 OGLE BLG227.7 16177 * 18 08 41.7359570474 -27 49 14.976788174           ~ 2 0
59 OGLE BLG218.3 139976 * 18 08 46.0426216128 -28 12 34.579445724           ~ 3 0
60 OGLE BLG236.7 59423 * 18 09 13.9286804081 -27 12 12.478919310           ~ 2 0
61 OGLE BLG251.4 149142 * 18 11 29.35 -25 38 24.0           ~ 2 0
62 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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