No Need for MACHOS in the Halo

Abstract

A simple interpretation of the more than dozen microlensing events seen in the direction of the LMC is a halo population of MACHOs which accounts for about half of the mass of the Galaxy. Such an interpretation is not without its problems, and we show that current microlensing data can, with some advantage, be explained by dark components of the disk and spheroid, whose total mass is only about 10% of the mass of the Galaxy.

5 pages + 3 figures

References in corpus (2)

• Evidence for an Intervening Stellar Population Toward the Large Magellanic Cloud
• The LMC Microlensing Events: Evidence for a Warped and Flaring Milky Way Disk?

Cited by in corpus (14)

• The gravitational wave signal from the Galactic disk population of binaries containing two compact objects
• Gravitational Lensing in Astronomy
• Testing LMC Microlensing Scenarios: The Discrimination Power of the SuperMACHO Microlensing Survey
• Cooling Models for Old White Dwarfs
• The LMC Microlensing Events: Evidence for a Warped and Flaring Milky Way Disk?
• Low frequency gravitational waves from black hole MACHO binaries
• White dwarfs and Galactic dark matter
• Star Counts and the Warped and Flaring Milky Way Disk
• Kepler Rotation Effects on the Binary-Lens Microlensing Events
• Magellanic Cloud Gravitational Microlensing Results: What Do They Mean?
• Density Distribution and Shape of Galactic Dark Halo Can be Determined by Low Frequency Gravitational Waves ?
• Reionization Constraints on the Contribution of Primordial Compact Objects to Dark Matter
• Using Optical and Near-IR Photometry to Test MACHO Lens Candidates
• Constraining the Location of Microlensing Objects towards the LMC through Parallax Measurement in EAGLE Observations