| hal.structure.identifier | Laboratoire de Physique des 2 Infinis Irène Joliot-Curie [IJCLab] | |
| dc.contributor.author | BLAINEAU, T. | |
| hal.structure.identifier | Laboratoire de Physique des 2 Infinis Irène Joliot-Curie [IJCLab] | |
| dc.contributor.author | MONIEZ, M. | |
| hal.structure.identifier | Institut de Recherches sur les lois Fondamentales de l'Univers [IRFU] | |
| dc.contributor.author | AFONSO, C. | |
| hal.structure.identifier | Laboratoire de Physique des 2 Infinis Irène Joliot-Curie [IJCLab] | |
| dc.contributor.author | ALBERT, J.-N. | |
| hal.structure.identifier | Laboratoire de Physique des 2 Infinis Irène Joliot-Curie [IJCLab] | |
| dc.contributor.author | ANSARI, R. | |
| hal.structure.identifier | Institut de Recherches sur les lois Fondamentales de l'Univers [IRFU] | |
| hal.structure.identifier | AstroParticule et Cosmologie [APC (UMR_7164)] | |
| dc.contributor.author | AUBOURG, E. | |
| hal.structure.identifier | Institut de Recherches sur les lois Fondamentales de l'Univers [IRFU] | |
| dc.contributor.author | COUTURES, C. | |
| hal.structure.identifier | Institut de Recherches sur les lois Fondamentales de l'Univers [IRFU] | |
| dc.contributor.author | GLICENSTEIN, J.-F. | |
| hal.structure.identifier | Observatoire astronomique de Strasbourg [ObAS] | |
| dc.contributor.author | GOLDMAN, B. | |
| hal.structure.identifier | Laboratoire de Physique des 2 Infinis Irène Joliot-Curie [IJCLab] | |
| dc.contributor.author | HAMADACHE, C. | |
| hal.structure.identifier | Institut de Recherches sur les lois Fondamentales de l'Univers [IRFU] | |
| dc.contributor.author | LASSERRE, T. | |
| hal.structure.identifier | Laboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE (UMR_7585)] | |
| dc.contributor.author | LE GUILLOU, L. | |
| hal.structure.identifier | Institut de Recherches sur les lois Fondamentales de l'Univers [IRFU] | |
| dc.contributor.author | LESQUOY, E. | |
| hal.structure.identifier | Institut de Recherches sur les lois Fondamentales de l'Univers [IRFU] | |
| dc.contributor.author | MAGNEVILLE, C. | |
| hal.structure.identifier | Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB] | |
| dc.contributor.author | MARQUETTE, J.-B. | |
| hal.structure.identifier | Institut de Recherches sur les lois Fondamentales de l'Univers [IRFU] | |
| dc.contributor.author | PALANQUE-DELABROUILLE, N. | |
| hal.structure.identifier | Laboratoire de Physique des 2 Infinis Irène Joliot-Curie [IJCLab] | |
| dc.contributor.author | PERDEREAU, O. | |
| hal.structure.identifier | Institut de Recherches sur les lois Fondamentales de l'Univers [IRFU] | |
| dc.contributor.author | RICH, J. | |
| hal.structure.identifier | Institut de Recherches sur les lois Fondamentales de l'Univers [IRFU] | |
| dc.contributor.author | SPIRO, M. | |
| hal.structure.identifier | Institut d'Astrophysique de Paris [IAP] | |
| dc.contributor.author | TISSERAND, P. | |
| dc.date.issued | 2022 | |
| dc.identifier.issn | 0004-6361 | |
| dc.description.abstractEn | We searched for long-duration microlensing events originating from intermediate-mass black holes (BH) in the halo of the Milky Way, using archival data from the EROS-2 and MACHO photometric surveys towards the Large Magellanic Cloud (LMC). We combined data from these two surveys to create a common database of light curves for 14.1 million objects in the LMC, covering a total duration of 10.6 years, with flux series measured in four wide passbands. We carried out a microlensing search on these light curves, complemented by the light curves of 22.7 million objects, observed only by EROS-2 or only by MACHO, over about 7 years, with flux series measured in only two passbands. A likelihood analysis, taking into account the LMC self-lensing and Milky Way disk contributions, allows us to conclude that compact objects with masses in the range 10 − 100 M⊙ cannot make up more than ∼15% of a standard halo total mass (at a 95% confidence level). Our analysis sensitivity weakens for heavier objects, although we still rule out the possibility of ∼50% of the halo being made of ∼1000 M⊙ BHs. Combined with previous EROS results, an upper limit of ∼15% of the total halo mass can be obtained for the contribution of compact halo objects in the mass range 10−6 − 102 M⊙.Key words: gravitational lensing: micro / surveys / stars: black holes / Galaxy: halo / Galaxy: kinematics and dynamics / dark matter | |
| dc.language.iso | en | |
| dc.publisher | EDP Sciences | |
| dc.rights.uri | http://creativecommons.org/licenses/by/ | |
| dc.subject.en | gravitational lensing: micro | |
| dc.subject.en | surveys | |
| dc.subject.en | stars: black holes | |
| dc.subject.en | Galaxy: halo | |
| dc.subject.en | Galaxy: kinematics and dynamics | |
| dc.subject.en | dark matter | |
| dc.title.en | New limits from microlensing on Galactic black holes in the mass range 10 M⊙ < M < 1000 M⊙ | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1051/0004-6361/202243430 | |
| dc.subject.hal | Physique [physics]/Astrophysique [astro-ph] | |
| dc.identifier.arxiv | 2202.13819 | |
| bordeaux.journal | Astronomy and Astrophysics - A&A | |
| bordeaux.page | A106 | |
| bordeaux.volume | 664 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-03602697 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-03602697v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Astronomy%20and%20Astrophysics%20-%20A&A&rft.date=2022&rft.volume=664&rft.spage=A106&rft.epage=A106&rft.eissn=0004-6361&rft.issn=0004-6361&rft.au=BLAINEAU,%20T.&MONIEZ,%20M.&AFONSO,%20C.&ALBERT,%20J.-N.&ANSARI,%20R.&rft.genre=article | |
