Cristina Afonso

The Local Group stellar populations archive from the Hubble Space Telescope WFPC2 (2006)

Holtzman, Jon A., Afonso, Cristina, Dolphin, Andrew

We present a database (LOGPHOT) of stellar photometry of Local Group galaxies obtained with the Hubble Space Telescope using the Wide Field Planetary Camera 2 (WFPC2). The database includes...

LAIWO: a new wide-field CCD camera for Wise Observatory (2006)

Baumeister, Harald, Afonso, Cristina, Marien, Karl-Heinz, Klein, Ralf

LAIWO is a new CCD wide-field camera for the 40-inch Ritchey-Chretien telescope at Wise Observatory in Mitzpe Ramon/Israel. The telescope is identical to the 40-in. telescope at Las Campanas...

Systematic Analysis of 22 Microlensing Parallax Candidates (2005)

Poindexter, Shawn, Afonso, Cristina, Bennett, David P., Glicenstein, Jean-Francois, Gould, Andrew, Szymanski, Michal K., ...

We attempt to identify all microlensing parallax events for which the parallax fit improves \Delta\chi^2 > 100 relative to a standard microlensing model. We outline a procedure to identify three...

Systematic analysis of 22 microlensing parallax candidates (2005)

Poindexter, Shawn, Afonso, Cristina, Bennett, David P., Glicenstein, Jean-Francois, Gould, Andrew, Szymanski, Michal K., ...

We attempt to identify all microlensing parallax events for which the parallax fit improves Deltachi2>100 relative to a standard microlensing model. We outline a procedure to identify three types of...