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Microlensing of unresolved stars as a brown dwarf detection method
We describe a project of brown dwarf detection in the dark halo of a galaxy using the microlensing effect. We argue that monitoring pixels instead of stars could provide an enhancement in the number of detectable events. We estimate the detection efficiency with a Monte-Carlo simulation. We expect a...
| Autores principales: | , , , , |
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| Lenguaje: | eng |
| Publicado: |
1993
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/255911 |
| _version_ | 1780885786346913792 |
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| author | Bouquet, Alain Kaplan, Jean Melchior, Anne-Laure Giraud-Heraud, Yannick Baillon, Paul |
| author_facet | Bouquet, Alain Kaplan, Jean Melchior, Anne-Laure Giraud-Heraud, Yannick Baillon, Paul |
| author_sort | Bouquet, Alain |
| collection | CERN |
| description | We describe a project of brown dwarf detection in the dark halo of a galaxy using the microlensing effect. We argue that monitoring pixels instead of stars could provide an enhancement in the number of detectable events. We estimate the detection efficiency with a Monte-Carlo simulation. We expect a ten-fold increase with respect to current experiments. To assess the feasibility of this method we have determined the photometric precision of a pixel by comparing several pictures of a same field in the LMC. To be published in the Proceeding of the workshop 'The dark side of the universe...', Roma, Juin 1993, |
| id | cern-255911 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1993 |
| record_format | invenio |
| spelling | cern-2559112023-03-14T18:53:25Zhttp://cds.cern.ch/record/255911engBouquet, AlainKaplan, JeanMelchior, Anne-LaureGiraud-Heraud, YannickBaillon, PaulMicrolensing of unresolved stars as a brown dwarf detection methodOther Fields of PhysicsWe describe a project of brown dwarf detection in the dark halo of a galaxy using the microlensing effect. We argue that monitoring pixels instead of stars could provide an enhancement in the number of detectable events. We estimate the detection efficiency with a Monte-Carlo simulation. We expect a ten-fold increase with respect to current experiments. To assess the feasibility of this method we have determined the photometric precision of a pixel by comparing several pictures of a same field in the LMC. To be published in the Proceeding of the workshop 'The dark side of the universe...', Roma, Juin 1993,We describe a project of brown dwarf detection in the dark halo of a galaxy using the microlensing effect. We argue that monitoring pixels instead of stars could provide an enhancement in the number of detectable events. We estimate the detection efficiency with a Monte-Carlo simulation. We expect a ten-fold increase with respect to current experiments. To assess the feasibility of this method we have determined the photometric precision of a pixel by comparing several pictures of a same field in the LMC. To be published in the Proceeding of the workshop 'The dark side of the universe...', Roma, Juin 1993,astro-ph/9312009oai:cds.cern.ch:2559111993 |
| spellingShingle | Other Fields of Physics Bouquet, Alain Kaplan, Jean Melchior, Anne-Laure Giraud-Heraud, Yannick Baillon, Paul Microlensing of unresolved stars as a brown dwarf detection method |
| title | Microlensing of unresolved stars as a brown dwarf detection method |
| title_full | Microlensing of unresolved stars as a brown dwarf detection method |
| title_fullStr | Microlensing of unresolved stars as a brown dwarf detection method |
| title_full_unstemmed | Microlensing of unresolved stars as a brown dwarf detection method |
| title_short | Microlensing of unresolved stars as a brown dwarf detection method |
| title_sort | microlensing of unresolved stars as a brown dwarf detection method |
| topic | Other Fields of Physics |
| url | http://cds.cern.ch/record/255911 |
| work_keys_str_mv | AT bouquetalain microlensingofunresolvedstarsasabrowndwarfdetectionmethod AT kaplanjean microlensingofunresolvedstarsasabrowndwarfdetectionmethod AT melchiorannelaure microlensingofunresolvedstarsasabrowndwarfdetectionmethod AT giraudheraudyannick microlensingofunresolvedstarsasabrowndwarfdetectionmethod AT baillonpaul microlensingofunresolvedstarsasabrowndwarfdetectionmethod |