WFPC2 UV imaging of Galactic Open Clusters

MAIZ APELLANIZ, J.; MCKENTY, J.W.; GÓMEZ DE CASTRO, A.I.; ALFARO, E.J.; PÉREZ, E.; GONZÁLEZ DELGADO, R.; BARBÁ, R.H.; ARIAS, J.I.; KNIGGE, C.

San Petesburgo

Congreso; UV Universe 2010; 2010

Institute of Astronomy of the Russian Academy of Science

WFPC2 was the last instrument aboard HST with FUV wide-field imaging capabilities not subject to bright-object limits. Before the instrument wasbrought back to Earth by the SM4 astronauts in May 2009, we used it to observe four Galactic open clusters and H ii regions in multiple filters between the FUV and the I band. Those data represent the highest angular- resolution images in the FUV ever obtained of objects of such type. We present our first results on M8 (NGC 6530), which include the first subarcsecond-resolution image of a Galactic reflection nebula in the FUV.