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Probing MACHOs by observation of M 31 pixel lensing with the 1.5 m Loiano telescope
- Source :
- Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, EDP Sciences, 2007, 469, pp.115-119. ⟨10.1051/0004-6361:20077075⟩, Astronomy and Astrophysics-A&A, 2007, 469, pp.115-119. ⟨10.1051/0004-6361:20077075⟩
- Publication Year :
- 2007
-
Abstract
- We analyse a series of pilot observations in order to study microlensing of (unresolved) stars in M31 with the 1.5m Loiano telescope, including observations on both identified variable source stars and reported microlensing events. We also look for previously unknown variability and discover a nova. We discuss an observing strategy for an extended campaign with the goal of determining whether MACHOs exist or whether all microlensing events are compatible with lens stars in M31.<br />Accepted for publication as a research Note in Astronomy & Astrophysics
- Subjects :
- [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]
Gravitational lensing
FOS: Physical sciences
Astrophysics
Gravitational microlensing
01 natural sciences
law.invention
Telescope
Galactic halo
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]
astro-ph
law
0103 physical sciences
010303 astronomy & astrophysics
Galaxy: Halo
Physics
Pixel
010308 nuclear & particles physics
Astrophysics (astro-ph)
Astronomy and Astrophysics
Galaxy
Stars
Variable source
Gravitational lens
Space and Planetary Science
Galaxies: M31
Subjects
Details
- Language :
- English
- ISSN :
- 00046361
- Database :
- OpenAIRE
- Journal :
- Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, EDP Sciences, 2007, 469, pp.115-119. ⟨10.1051/0004-6361:20077075⟩, Astronomy and Astrophysics-A&A, 2007, 469, pp.115-119. ⟨10.1051/0004-6361:20077075⟩
- Accession number :
- edsair.doi.dedup.....075688cfe97eda61812610e3fcd7bdfe
- Full Text :
- https://doi.org/10.1051/0004-6361:20077075⟩