Table 5
Separation, magnitude difference (left), chance projection probability (middle) depending on the sample and method used, and proper motion comment and binding status of potential companion to the main object (right).
| Star | Proj. sep. | prob. sep. | prob. sep.1 | Max proj. | Δmag | P(field)2 | P(field)2 | P′(field) | P′cut-off | P,P′, P′′(field)3 | Comments | Status | |||||||||||||
| ″ | ″ | au | sep. ″ for | δmag < 8.5m | NACO | trilegal% | trilegal | 2MASS | Motion | ||||||||||||||||
| 10 000 au | % | all, ±2m, ±1m | % | % | % | ||||||||||||||||||||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) | (13) | |||||||||||||
|
|
|||||||||||||||||||||||||
| Pistol Star_4 | 0.75 | 1.21 | 9698 | 0.77 | 3.1−2.3 | 11 | 100, 9, 5 | 46 | 42 | 5, 4, 5 | A | borderline | |||||||||||||
| Pistol Star_3 | 1 | 1.61 | 12931 | 0.77 | 4.1−3.7 | 20 | 100, 40, 15 | 66 | 42 | 9, 9, 9 | B | field | |||||||||||||
| Pistol Star_1 | 1.39 | 2.24 | 17974 | 0.77 | 5−4.9 | 39 | 100, 100, 71 | 88 | 42 | 16, 15, 16 | C | field | |||||||||||||
| Pistol Star_2 | 1.44 | 2.32 | 18620 | 0.77 | 5−5 | 42 | 100, 100, 77 | 90 | 42 | 17, 15, 15 | C | field | |||||||||||||
| WR102ka_b | 1.35 | 1.49 | 11920 | 0.77 | ~5 | 90 | 25, 0, 0 | 22 | 42 | 13, 12, 13 | D | field | |||||||||||||
| WR102ka_c | 1.98 | 2.19 | 17520 | 0.77 | 3.5 | 100 | 52, 0, 0 | 41 | 42 | 29, 25, 25 | D | field | |||||||||||||
| LBV1806-20b | 0.76 | 1.23 | 14495 | 0.52 | 6.6 | 20 | 5, 5, 4 | 18 | 62 | 3, 3, 3 | field | ||||||||||||||
| LBV1806-20c | 0.9 | 1.45 | 17166 | 0.52 | 6.6 | 28 | 8, 8, 5 | 24 | 62 | 4, 4, 4 | field | ||||||||||||||
| LBV1806-20d | 1.3 | 2.1 | 24795 | 0.52 | 6.6 | 59 | 15, 15, 13 | 44 | 62 | 9, 9, 9 | field | ||||||||||||||
| HD 168625b | 1.15 | 1.86 | 4089* | 2.81 | 4.6−4.4 | 5 | 2, 1, 1 | <1 | 12 | 3,3,3 | E | bound | |||||||||||||
| HD 168625b real4 | 1.15 | 1.33 | 2927** | 3.94 | 4.6−4.4 | 5 | 2, 1, 1 | <1 | 12 | 3, 3, 3 | E | bound | |||||||||||||
| HD 168607b | 2.02 | 3.26 | 7183 | 2.81 | 10.1 | 100 | 8, 7, 7 | 65 | 12 | 7, 6, 7 | field | ||||||||||||||
| HD 168607c | 4.19 | 6.76 | 14899 | 2.81 | 9.1 | 100 | 31, 31, 16 | 99 | 12 | 29, 25, 25 | field | ||||||||||||||
| HD 168607d | 5.19 | 8.37 | 18455 | 2.81 | 10.1 | 100 | 45, 45, 35 | 100 | 12 | 45, 36, 36 | field | ||||||||||||||
| MWC930b | 2.88 | 4.65 | 16293 | 1.77 | 7.2 | 100 | 2, 2, 2 | 79 | 18 | 14,13,13 | field | ||||||||||||||
| MWC930c | 1.31 | 2.11 | 7411 | 1.77 | >8 | 46 | 1, 1, 0 | 27 | 18 | 3,3,3 | B | field | |||||||||||||
| MWC314b | <1 mas | 1.22 | 2.06 | <1 | 16 | <1, <1, <1 | F | bound | |||||||||||||||||
| MWC314c | 1.18 | 1.9 | 5722 | 2.06 | 3.3−4.2 | 29 | 2, 1, 1 | 8 | 16 | 4, 4, 4 | bound | ||||||||||||||
| HD 152234b | 0.51 | 0.83 | 1590 | 3.24 | 14 | 7, 7, 0 | 12 | 10 | 1, 1, 1 | G | borderline | ||||||||||||||
| WR102e_b | 0.71 | 1.15 | 9181 | 0.77 | 2.6−2.6 | 10 | 100, 94, 51 | 43 | 42 | 4,4,4 | B | field | |||||||||||||
| HD 164794b | 2-8 mas | 14 | 4.48 | <1 | 8 | <1, <1, <1 | H | bound | |||||||||||||||||
| HD 164794c | 2.4 | 3.87 | 6129 | 3.92 | 7.7 | 86 | 100, 100, 100 | 57 | 8 | 16, 15, 15 | field | ||||||||||||||
| HD 164794d | 3.5 | 5.65 | 8938 | 3.92 | 8.5 | 100 | 100, 100, 100 | 83 | 8 | 35, 29, 30 | field | ||||||||||||||
| HD 164794e | 4.6 | 7.42 | 11748 | 3.92 | 8.7 | 100 | 100, 100, 96 | 96 | 8 | 61, 45, 45 | field | ||||||||||||||
Notes. Blue values are larger than the defined limit (see text). Details of the columns are indicated at the bottom of the Table. Column details: Col. 1: star ID, Col. 2: projected separation as measured in the image, Cols. 3 and 4: probable deprojected separation in arcsec or in au, Col. 5: maximum projected separation in arcsec corresponding to 10 000 au, Col. 6: magnitude difference, Col. 71: chance projection probability P(field) in NACO images, Col. 8: P(field) using the trilegal model results and with counting from no restriction to ±1m difference with the main star, Col. 9: chance projection probability P′(field) following the formula of Correia et al. (2006) with trilegal data, Col. 10: cut-off probability limit for P′ (see text), Col. 112: chance projection probability comparison P(field), P′(field), with P′′(field) following the formula of Ciardullo et al. (1999) and using 2MASS data. Col. 12: proper motion comment, Col. 13: status of the potential companion: “bound”, “borderline”, “field”. Table notes: A: no motion estimates, B: large motion indicating a foreground object, C: small motion, D: only SINFONI “image”, E: small motion, low projected speed, F: see Lobel et al. (2013), G: only VISIR image, H: see Rauw et al. (2012). The error in the chance projection probability estimates is usually lower than 1% (see text).
“real” stands for companion in the disk plane with an inclination angle of 60° (O’Hara et al. 2003; Smith 2007) corresponding to a deprojection of 30°.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.