Wide Field Camera 3
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WFC3 Preliminary Workshop Summary Data

Filters in Boldface were in WFPC2

UVIS Filters

IR Filters

BROAD BAND FILTER CONSENSUS

Equivalent Short Long Delta λ Name Comments
  2000 2400   220 Dust feature at 2200 - can you go to 1900?
  2400 2900   265 Can serve as continuum for 2800 Mg II?
  2900 3400   315 Can serve as continuum for 2800 Mg II?
Stromgren u 3000 Balmer   F336W  
Washington 3400 4400   390 Very sensitive to [M/H] in cool stars.
B 4000 4800   438 As wide as possible while preserving tranformation to B.
SDSS g     1450 475 Sloane filter set.
WFPC2 V       F555W Build filter to reproduce F555W allowing for difference in CCDs or optimize transformation to V.
Wide V 4700 7000 2300 F606W  
SDSS r 5400 7000 1600 625 Sloan filter set- check quality of transformation to KC R.
SDSS i 7000 8600 1600 775 Sloan filter set.
WFPC2 I       F814W Wide I.
SDSS z       850 Sloan filter set.
  <2000 3650   300X  
  3800 6000   475X  
  6000LP     F600LP  
  ~3500?     F350LP LP filter with short cutoff as short as possible while retaining image quality (3500 Ang?)

MEDIUM BAND FILTER CONSENSUS

Equivalent Short Long Delta λ Name Comments
Stromgren v ?   147 F410M ???
Stromgren b ?   172 F467M ???
Stromgren y       F547M Heavily used as continuum for many other filters EXCLUDE 5007, 5876 !!!!
      ~200 F390M Continuum near Ca II absorption
      660 660 RAW's filters 10% wide
      700 710 "
      780 780 "
      850 850 "

SPECIALTY FILTERS (all placeholders so far)

Equivalent Short Long Delta λ Name Comments
UV prism 2000 3000?   Prism R ~100
Focal plane compensator for simultaneous work.          

NARROW BAND CONCENSUS

Equivalent Short Long Delta λ Name Comments
[O II] 3727     F375N A
[He II] 4686     F469N A
H beta 4861     F487N A
[O III] 5007     F502N A
He I/Na 5876     F588N A
[O I] 6300     F631N A
H alpha 6563     F656N A H alpha only - narrower than WFPC2
[N II] 6584     F658N A [N II] + Red shifted H alpha
Continuum 6650     F665N A Continuum + redshifted H alpha
[S II] 6717+6731     F673N A
Quads          
Methane 1       Q-CH4 A two CH_4 plus appropriate continuum bands.
Methane 2       Q-CH4 A F889N + F904 + F922 + F937N
Mg II 2798     F280N B
[Ne V] 3426     F343N B
Ca II K       F393N B
Continuum 6450   100 F645N A
Continuum 6800     F680N A Continuum + redshifted S II & H alpha
[S III] 9530     F953N B HH objects; slow shocks; good in heavy extinctioned environments
Quads          
Nebular 1       Q-neb-1 B [N II] 5755; Redshifted [O II], H beta, [O III] - maximize FOV by loc in Quad.
Nebular 2       Q-neb-2 B [O III] 4363, continuum, [S II] 6717, 6731
Nebular 3       Q-neb-3 C [Ne IV] 2420, [Ne III] 3869, [C II] 2325, [C III] 1909

SECOND PRIORITY AND BACKUP FILTERS

Equivalent Short Long Delta λ Name Comments
        5175M Mg abs + Em cont.
        4530M Continuum for H beta.
        675W KC R filter.
        F930M Duplicate the IR filter.
  6000 10000   G800  
  2500? 6500?   G450 Grism
      100 6563 H alpha + [N II]
Stromgren Hb     ? 4861  
        G200 ? Available from WF/PC and/or WFPC2.
        Ramps ? Defer to ACS.
        Polarizers ? Defer to ACS.
          F619N + picket fence continuum on either side

INFRARED FILTER CONSENSUS

Equivalent Short Long Delta λ Name Comments
close to Gunn z     0.20 F100W YES - optimize characteristics to get what you cannot from ground - take it down to detector cutoff
J (ground based)     0.23 F124W YES minimize transform to ground J
H, grism reference     0.40 F160W YES
Grism       grism grsim TBD
           
           
H2O, brown dwarf     0.19 F145M Highest priority for water; may need to make narrower to optimize but then problem for BB colors
CH_4 cont, brown dwarf     0.10 F158M Strongest methane continuum- highest priority (with 172) Is another cont filter possible?
CH_4, brown dwarf     0.07 F172M Strongest methane - highest priority (with 158 and Palpha) could make it narrow for Palpha and ok for planets as well
          Is this really the right methane?
P beta       F128N Highest priority emission line filter if cannot do P alpha
cont       F130N  
[Fe II]       F164N Second highest priority after either P alpha or P beta, not both - don't just duplicate NICMOS
" cont       F167N  
P alpha       F187N Highest priority emission line filter if possible.
P alpha (cont)       ??? Goes with P alpha, but can you use F172M??

SECOND PRIORITY AND BACKUP FILTERS

Equivalent Short Long Delta λ Name Comments
          Very broad "J" filter
        G(TBD) grism (high res)
[Fe II]       F126N do with other FE II for reddening if cannot do P alpha and beta
He I       F108N Can be used as CH_4 (second priority methane)
"cont       F113N "
need         Broad I filter
P beta (redshifted)       F131N  
" cont       F190N Too long lambda
[C I]       F098N  
[Fe II]       F115M Continuum for Fe II
Ice -cont.     0.10 F165M  
Ice band     0.07 F180M  
CH_4, brown dwarf     0.10 F125M third priority methane
        G141  
        clear  
Bold are ones from NICMOS