MEGA: Microlensing exploration of the galaxy and andromeda

被引：0

作者：

Alves, DR ^{[1
]}

Baltz, E ^{[1
]}

Crotts, A ^{[1
]}

Bergier, A ^{[1
]}

Cseresnjes, P ^{[1
]}

Gersch, A ^{[1
]}

机构：

[1] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA

来源：

DARK MATTER IN GALAXIES | 2004年 / 220期

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Microlensing surveys have ruled out that the dark halos of the Milky Way and M31 are composed entirely of massive compact halo objects (MACHOs) for a wide range of MACHO masses. We have tried using the Subaru telescope to improve the limit on Moon-mass MACHOs, which is the lowest decade in MACHO mass that can be probed by microlensing. Unfortunately, only a half-night of Subaru data was obtained and this is not enough; at least 2 nights of data are required. The current limit is based on nearly 6 years of observations with smaller telescopes.

引用

页码：127 / 128

页数：2

共 4 条

[1] EROS and MACHO combined limits on planetary-mass dark matter in the galactic halo [J].

Alcock, C ;

Allsman, RA ;

Alves, D ;

Ansari, R ;

Aubourg, E ;

Axelrod, TS ;

Bareyre, P ;

Beaulieu, JP ;

Becker, AC ;

Bennett, DP ;

Brehin, S ;

Cavalier, F ;

Char, S ;

Cook, KH ;

Ferlet, R ;

Fernandez, J ;

Freeman, KC ;

Griest, K ;

Grison, P ;

Gros, M ;

Gry, C ;

Guibert, J ;

Lachieze-Rey, M ;

Laurent, B ;

Lehner, MJ ;

Lesquoy, E ;

Magneville, C ;

Marshall, SL ;

Maurice, E ;

Milsztajn, A ;

Minniti, D ;

Moniez, M ;

Moreau, O ;

Moscoso, L ;

Palanque-Delabrouille, N ;

Peterson, BA ;

Pratt, MR ;

Prevot, 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 .

ASTROPHYSICAL JOURNAL, 1998, 499 (01) :L9-L12

[2] Event rates and timescale distributions from realistic microlensing models of M31 [J].

Baltz, EA ;

Gyuk, G ;

Crotts, A .

ASTROPHYSICAL JOURNAL, 2003, 582 (01) :30-36

[3] Massive Compact Halo Objects from the relics of the cosmic quark-hadron transition [J].

Banerjee, S ;

Bhattacharyya, A ;

Ghosh, SK ;

Raha, S ;

Sinha, B ;

Toki, H .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2003, 340 (01) :284-288

[4] Dynamical constraints on dark matter in compact objects [J].

Carr, BJ ;

Sakellariadou, M .

ASTROPHYSICAL JOURNAL, 1999, 516 (01) :195-220

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