EROS and MACHO combined limits on planetary-mass dark matter in the Galactic halo

C. Alcock; R. A. Allsman; D. Alves; R. Ansari; É Aubourg; T. S. Axelrod; P. Bareyre; J. P.H. Beaulieu; A. C. Becker; D. P. Bennett; S. Brehin; F. Cavalier; S. Char; K. H. Cook; R. Ferlet; J. Fernandez; K. C. Freeman; K. Griest; P. H. Grison; M. Gros; C. Gry; J. Guibert; M. Lachièze-Rey; B. Laurent; M. J. Lehner; É Lesquoy; C. Magneville; S. L. Marshall; É Maurice; A. Milsztajn; D. Minniti; M. Moniez; O. Moreau; L. Moscoso; N. Palanque-Delabrouille; B. A. Peterson; M. R. Pratt; L. Prévôt; F. Queinnec; P. J. Quinn; C. Renault; J. Rich; M. Spiro; C. W. Stubbs; W. Sutherland; A. Tomaney; T. Vandehei; A. Vidal-Madjar; L. Vigroux; S. Zylberajch

doi:10.1086/311355

EROS and MACHO combined limits on planetary-mass dark matter in the Galactic halo

C. Alcock, R. A. Allsman, D. Alves, R. Ansari, É Aubourg, T. S. Axelrod, P. Bareyre, J. P.H. Beaulieu, A. C. Becker, D. P. Bennett, S. Brehin, F. Cavalier, S. Char, K. H. Cook, R. Ferlet, J. Fernandez, K. C. Freeman, K. Griest, P. H. Grison, M. GrosC. Gry, J. Guibert, M. Lachièze-Rey, B. Laurent, M. J. Lehner, É Lesquoy, C. Magneville, S. L. Marshall, É Maurice, A. Milsztajn, D. Minniti, M. Moniez, O. Moreau, L. Moscoso, N. Palanque-Delabrouille, B. A. Peterson, M. R. Pratt, L. Prévôt, F. Queinnec, P. J. Quinn, C. Renault, J. Rich, M. Spiro, C. W. Stubbs, W. Sutherland, A. Tomaney, T. Vandehei, A. Vidal-Madjar, L. Vigroux, S. Zylberajch

Facultad Ciencias Exactas

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127 Citas (SciVal)

Resumen

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 < × 10^-5 M_⊙ mass range.

Idioma original	Inglés
Páginas (desde-hasta)	L9-L12
Publicación	Astrophysical Journal
Volumen	499
N.º	1 PART II
DOI	https://doi.org/10.1086/311355
Estado	Publicada - 1998

Áreas temáticas de ASJC Scopus

Astronomía y astrofísica
Ciencias planetarias y espacial

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Alcock, C., Allsman, R. A., Alves, D., Ansari, R., Aubourg, É., Axelrod, T. S., Bareyre, P., Beaulieu, J. P. H., 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. H., ... Zylberajch, S. (1998). EROS and MACHO combined limits on planetary-mass dark matter in the Galactic halo. Astrophysical Journal, 499(1 PART II), L9-L12. https://doi.org/10.1086/311355

@article{df473df16e0a42deab8a4653b70acbd1,

title = "EROS and MACHO combined limits on planetary-mass dark matter in the Galactic halo",

abstract = "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 < × 10-5 M⊙ mass range.",

keywords = "Dark matter, Gravitational lensing, Stars: Low-mass, brown dwarfs",

author = "C. Alcock and Allsman, {R. A.} and D. Alves and R. Ansari and {\'E} Aubourg and Axelrod, {T. S.} and P. Bareyre and Beaulieu, {J. P.H.} and Becker, {A. C.} and Bennett, {D. P.} and S. Brehin and F. Cavalier and S. Char and Cook, {K. H.} and R. Ferlet and J. Fernandez and Freeman, {K. C.} and K. Griest and Grison, {P. H.} and M. Gros and C. Gry and J. Guibert and M. Lachi{\`e}ze-Rey and B. Laurent and Lehner, {M. J.} and {\'E} Lesquoy and C. Magneville and Marshall, {S. L.} and {\'E} Maurice and A. Milsztajn and D. Minniti and M. Moniez and O. Moreau and L. Moscoso and N. Palanque-Delabrouille and Peterson, {B. A.} and Pratt, {M. R.} and L. Pr{\'e}v{\^o}t and F. Queinnec and Quinn, {P. J.} and C. Renault and J. Rich and M. Spiro and Stubbs, {C. W.} and W. Sutherland and A. Tomaney and T. Vandehei and A. Vidal-Madjar and L. Vigroux and S. Zylberajch",

year = "1998",

doi = "10.1086/311355",

language = "English",

volume = "499",

pages = "L9--L12",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing Ltd.",

number = "1 PART II",

}

Alcock, C, Allsman, RA, Alves, D, Ansari, R, Aubourg, É, Axelrod, TS, Bareyre, P, Beaulieu, JPH, Becker, AC, Bennett, DP, Brehin, S, Cavalier, F, Char, S, Cook, KH, Ferlet, R, Fernandez, J, Freeman, KC, Griest, K, Grison, PH, Gros, M, Gry, C, Guibert, J, Lachièze-Rey, M, Laurent, B, Lehner, MJ, Lesquoy, É, Magneville, C, Marshall, SL, Maurice, É, Milsztajn, A, Minniti, D, Moniez, M, Moreau, O, Moscoso, L, Palanque-Delabrouille, N, Peterson, BA, Pratt, MR, Prévôt, L, Queinnec, F, Quinn, PJ, Renault, C, Rich, J, Spiro, M, Stubbs, CW, Sutherland, W, Tomaney, A, Vandehei, T, Vidal-Madjar, A, Vigroux, L & Zylberajch, S 1998, 'EROS and MACHO combined limits on planetary-mass dark matter in the Galactic halo', Astrophysical Journal, vol. 499, n.º 1 PART II, pp. L9-L12. https://doi.org/10.1086/311355

TY - JOUR

T1 - EROS and MACHO combined limits on planetary-mass dark matter in the Galactic halo

AU - Alcock, C.

AU - Allsman, R. A.

AU - Alves, D.

AU - Ansari, R.

AU - Aubourg, É

AU - Axelrod, T. S.

AU - Bareyre, P.

AU - Beaulieu, J. P.H.

AU - Becker, A. C.

AU - Bennett, D. P.

AU - Brehin, S.

AU - Cavalier, F.

AU - Char, S.

AU - Cook, K. H.

AU - Ferlet, R.

AU - Fernandez, J.

AU - Freeman, K. C.

AU - Griest, K.

AU - Grison, P. H.

AU - Gros, M.

AU - Gry, C.

AU - Guibert, J.

AU - Lachièze-Rey, M.

AU - Laurent, B.

AU - Lehner, M. J.

AU - Lesquoy, É

AU - Magneville, C.

AU - Marshall, S. L.

AU - Maurice, É

AU - Milsztajn, A.

AU - Minniti, D.

AU - Moniez, M.

AU - Moreau, O.

AU - Moscoso, L.

AU - Palanque-Delabrouille, N.

AU - Peterson, B. A.

AU - Pratt, M. R.

AU - Prévôt, L.

AU - Queinnec, F.

AU - Quinn, P. J.

AU - Renault, C.

AU - Rich, J.

AU - Spiro, M.

AU - Stubbs, C. W.

AU - Sutherland, W.

AU - Tomaney, A.

AU - Vandehei, T.

AU - Vidal-Madjar, A.

AU - Vigroux, L.

AU - Zylberajch, S.

PY - 1998

Y1 - 1998

N2 - 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 < × 10-5 M⊙ mass range.

AB - 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 < × 10-5 M⊙ mass range.

KW - Dark matter

KW - Gravitational lensing

KW - Stars: Low-mass, brown dwarfs

UR - http://www.scopus.com/inward/record.url?scp=33645709182&partnerID=8YFLogxK

U2 - 10.1086/311355

DO - 10.1086/311355

M3 - Article

AN - SCOPUS:33645709182

SN - 0004-637X

VL - 499

SP - L9-L12

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1 PART II

ER -

EROS and MACHO combined limits on planetary-mass dark matter in the Galactic halo

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