The WFPC2 Archival Parallels Project

We describe the methods and procedures developed to obtain a near-automatic combination of WFPC2 images obtained as part of the WFPC2 Archival Pure Parallels program. Several techniques have been developed or refined to ensure proper alignment, registration, and combination of overlapping images tha...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2005-11
Main Authors: Wadadekar, Yogesh, Casertano, Stefano, Hook, Richard, Bül ent Kızıltan, Koekemoer, Anton, Ferguson, Harry, Denchev, Doichin
Format: Article
Language:English
Subjects:
Galaxies
Magellanic clouds
Star & galaxy formation
Star formation
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We describe the methods and procedures developed to obtain a near-automatic combination of WFPC2 images obtained as part of the WFPC2 Archival Pure Parallels program. Several techniques have been developed or refined to ensure proper alignment, registration, and combination of overlapping images that can be obtained at different times and with different orientations. We quantify the success rate and the accuracy of the registration of images of different types, and we develop techniques suitable to equalize the sky background without unduly affecting extended emission. About 600 combined images of the 1,500 eventually planned have already been publicly released through the STScI Archive. The images released to date are especially suited to study star formation in the Magellanic Clouds, the stellar population in the halo of nearby galaxies, and the properties of star-forming galaxies at \( z \sim 3 \).
ISSN:2331-8422
DOI:10.48550/arxiv.0511225