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Assigned ID: 62
----- Attempting Submission 1 (Tue Feb 21 16:48:48 GMT 2012) -----
HST Phase I Proposal 62 (lsb_uv.apt) successfully submitted.
----- Attempting Submission 2 (Mon Mar 05 17:53:20 GMT 2012) -----
HST Phase I Proposal 62 (lsb_uv.apt) successfully submitted.
0
----- Attempting Submission 1 (Mon Jul 09 17:08:57 GMT 2012) -----
----- Attempting Submission 2 (Fri Apr 12 16:00:42 GMT 2013) -----
----- Attempting Submission 3 (Tue Apr 16 20:03:03 GMT 2013) -----
UV Imaging of LSB Galaxies
This project is to obtain F336W, F555W and F814W (UVI) imaging of the last type of galaxy missing from the HST archives, low surface brightness (LSB) galaxies. LSB galaxies are unusual in having weak H-alpha emission with no signature of the ionizing stellar population in deep optical images nor in B-V color maps. We propose to obtain WFC3 imaging (with it's improved UV response) to resolve the star forming population in three nearby LSB galaxies (F415-3, F608-1 and F750-V1). This will allow us to resolve the young star clusters and map the top of the CMD in order to estimate the age and IMF of the underlying stellar population.
We have three galaxy targets imaged with WFC3 using F336W, F555W and F814W, For our allocation of 30 orbits, we wish to spend 10 orbits on each galaxy. Of those 10 (due to a 5 orbit limits per visit), we wish to use 5 on F336W, 3 on F555W and 2 on F814W. We will group the F555W and F814W orbits into one visit. Due to the low surface brightness nature of the galaxies, we request LOW-SKY ovservations.
We have broken each orbit into four exposures with a UVIS-DITHER-BOX for CR subtractions. It is unclear what value for FLASH we should apply to our F336W observations, so we have selected 10. We believe that the observations should be divided into two 5 orbit visits per object (5 for F336w, 3+2 for F555W, F814W); however, APT will not allow us to do that.
RESOLVED STELLAR POPULATIONS
12
false
false
0.0
0.0
false
false
false
SUPPORTED
GALAXY
LSB
This object was generated by the targetselector and retrieved from the SIMBAD database.
J2000
J2000
GALAXY
LSB
This object was generated by the targetselector and retrieved from the SIMBAD database.
J2000
J2000
GALAXY
LSB
This object was generated by the targetselector and retrieved from the SIMBAD database.
J2000
J2000
WFC3/UVIS
Imaging
No
No
F336W
WFC3/UVIS
Imaging
No
No
F555W
WFC3/UVIS
Imaging
No
No
F814W
WFC3/UVIS
Imaging
No
No
F336W
WFC3/UVIS
Imaging
No
No
F555W
WFC3/UVIS
Imaging
No
No
F814W
WFC3/UVIS
Imaging
No
No
F336W
WFC3/UVIS
Imaging
No
No
F555W
WFC3/UVIS
Imaging
No
No
F814W
POS-TARG
DITHER
0.173
LINE
0.112
false
false
81.785
4
23.884
WFC3-UVIS-DITHER-BOX
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false
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