AGAPEROS: searching for microlensing in the LMC with the pixel method. I. Data treatment and pixel light curves production
| Publication Type | Journal Article |
| School or College | College of Science |
| Department | Physics |
| Creator | Gondolo, Paolo |
| Other Author | Melchior, A. L.; Afonso, C.; Ansari, R.; Aubourt, E.; Baillon, P.; Bareyre, P.; Bauer, F.; Beaulieu, J.-Ph.; Bouquet, A.; Brehin, S.; Cavalier, F.; Char, S.; Couchot, F.; Coutures, C.; Ferlet, R.; Fernandez, J.; Gaucherel, C.; Giraud-Heraud, Y.; Glicenstein, J.-F.; Goldman, B.; Gros, M.; Guibert, J.; Hardin, D.; Kaplan, J.; de Kat, J.; Lachieze-Rey, M.; Laurent, B.; Lesquoy, E.; Magneville, Ch.; Mansoux, B.; Marquette, J.-B.; Maurice, E.; Milsztajn, A.; Moniez, M.; Moreau, O.; Moscoso, L.; Palanque-Delabrouille, N.; Perdereau, O.; Prevot, L.; Renault, C.; Queinnec, F.; Rich, J.; Spiro, M.; Vidal-Madjar, A.; Vigroux, L.; Zylberajch, S. |
| Title | AGAPEROS: searching for microlensing in the LMC with the pixel method. I. Data treatment and pixel light curves production |
| Date | 1999 |
| Description | Recent surveys monitoring millions of light curves of resolved stars in the LMC have discovered several microlensing events. Unresolved stars could however signi _x000C_cantly contribute to the microlensing rate towards the LMC. Monitoring pixels, as opposed to individual stars, should be able to detect stellar variability as a variation of the pixel flux. We present a _x000C_rst application of this new type of analysis (Pixel Method) to the LMC Bar. We describe the complete procedure applied to the EROS 91-92 data (one tenth of the existing CCD data set) in order to monitor pixel fluxes. First, geometric and photometric alignments are applied to each image. Averaging the images of each night reduces signi_x000C_cantly the noise level. Second, one light curve for each of the 2:1 106 pixels is built and pixels are lumped into 3.6"x 3.6" superpixels, one for each elementary pixel. |
| Type | Text |
| Publisher | EDP Sciences |
| First Page | 377 |
| Last Page | 391 |
| Subject | Data analysis techniques; Halo; Galaxies; Gravitational lensing; Pixel method; Large Magellanic Cloud; LMC |
| Subject LCSH | Astronomical photometry; Dark matter (Astronomy); Magellanic Clouds; Microlensing (Astrophysics) |
| Language | eng |
| Bibliographic Citation | Melchior, A. L., Afonso, C., Ansari, R., Aubourt, E., Baillon, P., Bareyre, P., Bauer, F., Beaulieu, J.-Ph., Bouquet, A., Brehin, S., Cavalier, F., Char, S., Couchot, F., Coutures, C., Ferlet, R., Fernandez, J., Gaucherel, C., Giraud-Heraud, Y., Glicenstein, J.-F., Goldman, B., Gondolo, P., Gros, M., Guibert, J., Hardin, D., Kaplan, J., de Kat, J., Lachieze-Rey, M., Laurent, B., Lesquoy, E., Magneville, Ch., Mansoux, B., Marquette, J.-B., Maurice, E., Milsztajn, A., Moniez, M.; Moreau, O., Moscoso, L., Palanque-Delabrouille, N., Perdereau, O., Prevot, L., Renault, C., Queinnec, F., Rich, J., Spiro, M., Vidal-Madjar, A., Vigroux, L., & Zylberajch, S. (1999). AGAPEROS: searching for microlensing in the LMC with the pixel method. I. Data treatment and pixel light curves production. Astronomy and Astrophysics Supplement Series, 134, Jan., 377-91. |
| Rights Management | (c)EDP Sciences http://publications.edpsciences.org/ |
| Format Medium | application/pdf |
| Format Extent | 1,790,540 bytes |
| Identifier | ir-main,9241 |
| ARK | ark:/87278/s6805m7g |
| Setname | ir_uspace |
| ID | 706953 |
| Reference URL | https://collections.lib.utah.edu/ark:/87278/s6805m7g |