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EROS and MACHO Combined Limits on Planetary-Mass Dark Matter in the Galactic Halo
Open accessAbstract
The EROS and MACHO collaborations have each published upper limits on the amount of planetary-mass dark matter in the Galactic halo obtained from gravitational microlensing searches. In this Letter, the two limits are combined to give a much stronger constraint on the abundance of low-mass MACHOs. Specifically, objects with masses 10 −7 M ≲ m ≲10 −3 M make up less than 25% of the halo dark matter for most models considered, and less than 10% of a standard spherical halo is made of MACHOs in the 3.5 × 10 −7 M < m <4.5 × 10 −5 M mass range.
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Cited by
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Clesse, S., & García-Bellido, J. (2015) · Physical Review D · doi:10.1103/physrevd.92.023524 · Cited by 471
Ricotti, M., Ostriker, J. P., & Mack, K. J. (2008) · The Astrophysical Journal · doi:10.1086/587831 · Cited by 411
MACHO Project Limits on Black Hole Dark Matter in the 1–30 [ITAL]M[/ITAL][TINF]⊙[/TINF] Range
Alcock, C., Allsman, R. A., Alves, D. R., Axelrod, T. S., Becker, A. C., Bennett, D. P., Cook, K. H., Dalal, N., Drake, A. J., Freeman, K. C., et al. (2001) · The Astrophysical Journal · doi:10.1086/319636 · Cited by 352
Self-citationExtragalactic Results from the Infrared Space Observatory
Genzel, R., & Cesarsky, C. J. (2000) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev.astro.38.1.761 · Cited by 273
Metadata
- Authors
- Alcock, C., Allsman, R. A., Alves, D., Ansari, R., Aubourg, É., Axelrod, T. S., Bareyre, P., Beaulieu, J.-P., Becker, A. C., Bennett, D. P., Brehin, S., Cavalier, F., Char, S., Cook, K. H., Ferlet, R., Fernandez, J., Freeman, K. C., Griest, K., Grison, P., Gros, M., Gry, C., Guibert, J., Lachièze-Rey, M., Laurent, B., Lehner, M. J., Lesquoy, É., Magneville, C., Marshall, S. L., Maurice, É., Milsztajn, A., Minniti, D., Moniez, M., Moreau, O., Moscoso, L., Palanque-Delabrouille, N., Peterson, B. A., Pratt, M. R., Prévôt, L., Queinnec, F., Quinn, P. J., Renault, C., Rich, J., Spiro, M., Stubbs, C. W., Sutherland, W., Tomaney, A., Vandehei, T., Vidal-Madjar, A., Vigroux, L., & Zylberajch, S.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 1998-05-20
- Volume
- 499
- Issue
- 1
- Pages
- L9-L12
- ISSN
- 0004-637X (ISSN-L)
- OpenAlex
- W2096676597
- Cited by
- 215
- References
- 0
- FWCI
- 10.17
- Type
- journal article
- Language
- en
- Open access
- bronze
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- CoChat. (2026). Citation check: EROS and MACHO Combined Limits on Planetary-Mass Dark Matter in the Galactic Halo. https://app.cochat.ai/papers/10.1086/311355
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- Alcock, C., Allsman, R. A., Alves, D., Ansari, R., Aubourg, É., Axelrod, T. S., Bareyre, P., Beaulieu, J.-P., Becker, A. C., Bennett, D. P., Brehin, S., Cavalier, F., Char, S., Cook, K. H., Ferlet, R., Fernandez, J., Freeman, K. C., Griest, K., Grison, P., . . . Zylberajch, S. (1998). EROS and MACHO Combined Limits on Planetary-Mass Dark Matter in the Galactic Halo. The Astrophysical Journal. https://doi.org/10.1086/311355
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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