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| Query : 2010MNRAS.402L..21C |
2010MNRAS.402L..21C - Mon. Not. R. Astron. Soc., 402, L21-L24 (2010/February-2)
Weak microlensing.
COLES J., SAHA P. and SCHMID H.M.
Abstract (from CDS):
A nearby star having a near-transit of a galaxy will cause a time-dependent weak lensing of the galaxy. Because the effect is small, we refer to this as weak microlensing. This could provide a useful method to weigh low-mass stars and brown dwarfs. We examine the feasibility of measuring masses in this way and find that a star causes measurable weak microlensing in a galaxy even at 10 Einstein radii away. Of the order of 1 mag I ≤ 25 galaxy comes close enough to one or the other of the ∼100 nearest stars per year.
Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS
Journal keyword(s): gravitational lensing - methods: statistical - stars: low-mass, brown dwarfs
CDS comments: 2MASS J0415+0935 is a misprint for 2MASS J0415-0935, DENIS 0255+4700 is a misprint for DENIS 0255-4700
Simbad objects: 9
| 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 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | DENIS J025503.3-470049 | BD* | 02 55 03.6927058871 | -47 00 51.356903955 | 22.921 | 19.906 | 17.454 | L9 | 170 | 0 | ||
| 2 | 2MASSI J0415195-093506 | BD* | 04 15 19.54368 | -09 35 06.6732 | T8.0 | 182 | 0 | |||||
| 3 | * alf CMa | SB* | 06 45 08.91728 | -16 42 58.0171 | -1.51 | -1.46 | -1.46 | -1.46 | -1.43 | A0mA1Va | 1610 | 0 |
| 4 | * alf CMi | SB* | 07 39 18.11950 | +05 13 29.9552 | 0.82 | 0.79 | 0.37 | -0.05 | -0.28 | F5IV-V+DQZ | 1925 | 0 |
| 5 | * alf Cen B | PM* | 14 39 35.06311 | -60 50 15.0992 | 2.89 | 2.21 | 1.33 | K1V | 1092 | 2 | ||
| 6 | * alf Cen A | SB* | 14 39 36.49400 | -60 50 02.3737 | 0.96 | 0.72 | 0.01 | G2V | 1352 | 1 | ||
| 7 | GJ 570 D | BD* | 14 57 14.96256 | -21 21 47.7504 | T8 | 242 | 1 | |||||
| 8 | SCR J1845-6357B | BD* | 18 45 05.2560 | -63 57 47.808 | T6 | 35 | 0 | |||||
| 9 | * alf Aql | dS* | 19 50 46.99855 | +08 52 05.9563 | 1.07 | 0.98 | 0.76 | 0.62 | 0.49 | A7Vn | 919 | 1 |
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