Formation History of Ultra-Faint Dwarf Galaxies (FHUFD)
Primary Investigator: Tom Brown
HLSP Authors: Tom Brown
Primary Reference(s): Brown et al. 2014
Citations: See ADS Statistics
The following proposals are relevant to this HSLP: HST Program 12549
FHUFD is a deep, high-precision, photometric survey of six ultra-faint dwarf galaxy satellites of the Milky Way, in order to discern any cosmologically-driven synchronization of their formation histories. For six ultra-faint dwarf satellites of the Milky Way (Bootes I, Coma Berenices, Canes Venatici II, Hercules, Leo IV, and Ursa Major I), the team provides ACS photometry, astrometry, and co-added (drizzled) images. The photometry and images are in two bands: F606W (broad V) and F814W (I), using the STMAG photometric system. The astrometry is given in equatorial coordinates (degrees, J2000). The drizzled images have a scale of 0.03 arcsec/pix. The images from each pointing are contained in their own FITS files. Each galaxy also has a single catalog file containing the point sources detected in the images.
The drizzled images are stored as FITS files with the following naming convention:
- <galaxy> = name of the galaxy, e.g., "ursamajori"
- <##> = the pointing number, as a two-digit zero-padded integer
- <filter> = the filter used, either "f606w" or "f814w"
The source catalogs follow a similar naming convention, except there is no pointing number component, and the string "multi" is used instead of the filter. The extension for the source catalogs is "*cat.fits".
|Field||R.A. (J2000)||Dec. (J2000)||Exptime F606W (sec)||F814W (sec)||Images||Catalogs|
|Bootes I||14:00:04||+14:30:47||2340||2200||FITS Files||Source Catalog|
|Canes Venatici II||12:57:10||+34:19:23||20850||20850||FITS Files||Source Catalog|
|Coma Berenices||12:27:21||+23:53:13||2340||2200||FITS Files||Source Catalog|
|Hercules||16:31:05||+12:47:07||12880||12745||FITS Files||Source Catalog|
|Leo IV||11:32:57||-00:31:00||20530||20530||FITS Files||Source Catalog|
|Ursa Major I||10:35:04||+51:56:51||4215||3725||FITS Files||Source Catalog|