The POINT-AGAPE Microlensing Survey: First Constraint on MACHOs towards M31
| dc.creator | Paulin-Henriksson, S. | |
| dc.creator | Novati, S. Calchi | |
| dc.date | 2004-08-11 | |
| dc.date.accessioned | 2026-07-07T02:14:16Z | |
| dc.date.available | 2026-07-07T02:14:16Z | |
| dc.description | To reveal the galactic dark matter in the form of MACHOs ("Massive Astrophysical Compact Halo Objects"), the POINT-AGAPE collaboration is carrying out a search for gravitational microlensing towards M31. A clear microlensing signal is detected. The high-threshold analysis of 3-year data leads to 7 bright and short microlensing candidates. The preliminary estimation of the detection efficiency implies that less than 25% (60%) of standard halos can be composed of objects with masses between 10^{-4} and 10^{-1} (10^{-1} and 1) solar mass at the 95% C.L. This result is compatible with previous microlensing results towards the Magellanic Clouds and gives the first constraints on MACHOs for a distant spiral galaxy. | |
| dc.description | 4 pages, 2 figures, to appear in the proceedings of the XXXIXth Rencontres de Moriond "Exploring the Universe", La Thuile, Italy, March 28-April 4, 2004 | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0408204 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0408204 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/8047 | |
| dc.subject | Astrophysics | |
| dc.title | The POINT-AGAPE Microlensing Survey: First Constraint on MACHOs towards M31 | |
| dc.type | text |