2003A&A...400..951A

Query : 2003A&A...400..951A

2003A&A...400..951A - Astronomy and Astrophysics, volume 400951-956 (2003/3-4)

Limits on Galactic dark matter with 5 years of EROS SMC data.

AFONSO C., ALBERT J.N., ANDERSEN J., ANSARI R., AUBOURG E., BAREYRE P., BEAULIEU J.P., BLANC G., CHARLOT X., COUCHOT F., COUTURES C., FERLET R., FOUQUE P., GLICENSTEIN J.F., GOLDMAN B., GOULD A., GRAFF D., GROS M., HAISSINSKI J., HAMADACHE C., DE KAT J., LASSERRE T., LE GUILLOU L., LESQUOY E., LOUP C., MAGNEVILLE C., MARQUETTE J.B., MAURICE E., MAURY A., MILSZTAJN A., MONIEZ M., PALANQUE-DELABROUILLE N., PERDEREAU O., PREVOT L., RAHAL Y.R., RICH J., SPIRO M., TISSERAND P., VIDAL-MADJAR A., VIGROUX L. and ZYLBERAJCH S.

Abstract (from CDS):

Five years of eros data towards the Small Magellanic Cloud have been searched for gravitational microlensing events, using a new, more accurate method to assess the impact of stellar blending on the efficiency. Four long-duration candidates have been found which, if they are microlensing events, hint at a non-halo population of lenses. Combined with results from other eros observation programs, this analysis yields strong limits on the amount of Galactic dark matter made of compact objects. Less than 25% of a standard halo can be composed of objects with a mass between 2x10–7M☉ and 1M☉ at the 95% C.L.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: halo - Galaxy: kinematics and dynamics - Galaxy: stellar content - cosmology: dark matter - lensing gravitational

Nomenclature: Table 1: EROS SMC N (Nos 2-4) added. Table 4: EROS LMC N (Nos 5-7) added.

Simbad objects: 10

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Number of rows : 10
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 EROS SMC 3 * 00 49 38.68 -74 14 06.8     20.2     ~ 1 0
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
3 MACHO 97-SMC-1 * 01 00 05.6 -72 15 03   18.01 17.9 18.14   ~ 27 0
4 EROS SMC 2 * 01 00 05.73 -72 15 02.3     20.4     ~ 1 0
5 EROS SMC 4 * 01 05 36.56 -72 15 02.4     19.9     ~ 1 0
6 EROS LMC 1 * 05 26 34 -70 57.8   19.46 19.11     B 16 0
7 EROS LMC 3 * ~ ~           ~ 5 0
8 EROS LMC 5 * ~ ~           ~ 2 0
9 EROS LMC 6 * ~ ~           ~ 2 0
10 EROS LMC 7 * ~ ~           ~ 2 0

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