Accurate photometric light curves of the lensed components of Q2237+0305 derived with an optimal image subtraction technique: Evidence for microlensing in image A
[en] Using an optimal image subtraction technique, we have derived the V and R light curves of the four lensed QSO components of Q2237+0305 from the monitoring CCD frames obtained by the GLITP collaboration with the 2.6m NOT telescope in 1999/2000 (Alcalde et al. 2002). We give here a detailed account of the data reduction and analysis and of the error estimates. In agreement with Wozniak et al. (2000a,b), the good derived photometric accuracy of the GLITP data allows to discuss the possible interpretation of the light curve of component A as due to a microlensing event taking place in the deflecting galaxy. This interpretation is strengthened by the colour dependence of the early rise of the light curve of component A, as it probably corresponds to a caustics crossing by the QSO source.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Moreau, O.
Libbrecht, C.
Lee, D. W.
Surdej, Jean ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Language :
English
Title :
Accurate photometric light curves of the lensed components of Q2237+0305 derived with an optimal image subtraction technique: Evidence for microlensing in image A
scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.
Bibliography
Alard, C. 2000, A&AS, 144, 363
Alcalde, D., Mediavilla, E., Moreau, O., et al. 2002, ApJ, 572, 729
Burud, I., Stabell, R., Magain, P., et al. 1998, A&A, 339, 701
Corrigan, R. T., Irwin, M. J., Arnaud, J., et al. 1991, AJ, 102, 34
Goicoechea, L. J., Alcalde, D., Mediavilla, E., & Muñoz, J. A. 2003, A&A, 397, 517
Huchra, J., Gorenstein, M., Kent, S., et al. 1985, AJ, 90, 691
Irwin, M. J., Webster, R. L., Hewett, P. C., Corrigan, R. T., & Jedrzejewski, R. I. 1989, AJ, 98, 1989
Kayser, R., & Refsdal, S. 1989, Nature, 338, 745
Lee, D. W., Surdej, J., Moreau, O., Libbrecht, C., & Claeskens, J.-F. 2005, A&A, submitted
Østensen, R., Refsdal, S., Stabell, R., et al. 1996, A&A, 309, 59
Remy, M. 1996, Ph.D. dissertation, Université de Liège
Shalyapin, V. N. 2001, Astron. Lett. 27, 150, also [arXiv:Astro-ph/ 0102384]
Shalyapin, V. N., Goicoechea, L. J., Alcalde, D., et al. 2002, ApJ, 579, 127
Schneider, D. P., Turner, E. L., Gunn, J. E., et al. 1988, AJ, 95, 1619
Vakulik, V. G., Schild, R. E., Dudinov, V. N., et al. 2004, A&A, 420, 447
Wambsganss, J., & Paczyński, B. 1991, AJ, 102, 864
Woźniak, P. R., Alard, C., Udalski, A., et al. 2000a, ApJ, 529, 88
Woźniak, P. R., Udalski, A., Szymañski, M., et al. 2000b, ApJ, 540, L65
Yee, H. K. C. 1988, AJ, 95, 1331
Yonehara, A. 2001, ApJ, 548, L127
Similar publications
Sorry the service is unavailable at the moment. Please try again later.
This website uses cookies to improve user experience. Read more
Save & Close
Accept all
Decline all
Show detailsHide details
Cookie declaration
About cookies
Strictly necessary
Performance
Strictly necessary cookies allow core website functionality such as user login and account management. The website cannot be used properly without strictly necessary cookies.
This cookie is used by Cookie-Script.com service to remember visitor cookie consent preferences. It is necessary for Cookie-Script.com cookie banner to work properly.
Performance cookies are used to see how visitors use the website, eg. analytics cookies. Those cookies cannot be used to directly identify a certain visitor.
Used to store the attribution information, the referrer initially used to visit the website
Cookies are small text files that are placed on your computer by websites that you visit. Websites use cookies to help users navigate efficiently and perform certain functions. Cookies that are required for the website to operate properly are allowed to be set without your permission. All other cookies need to be approved before they can be set in the browser.
You can change your consent to cookie usage at any time on our Privacy Policy page.