2. 4 meter 3 mirror anastigmat telescope utilizing the nro telescope components

2.4 meter 3 mirror anastigmat telescope utilizing the NRO telescope components.

• 2.4 meter 3 mirror anastigmat telescope utilizing the NRO telescope components.

• Dichroic splitting of the optical paths to produce 4 fields of view, each of which images 0.25 sq. degrees.

• WNEW contains 8 filters in two sets of four that can be viewed simultaneously.

• The plate scale is 0.11” per pixel.

• WNEW also contains 8 grisms for low resolution spectroscopy

Four fold dichroic multiplexing optimizes the very large field of view to maximize the scientific return.

• Four fold dichroic multiplexing optimizes the very large field of view to maximize the scientific return.

• WNEW is based on a previously funded Origins Probe study, the Galaxy Evolution Probe, with a very well studied and mature design.

• WNEW achieves all of the WFIRST DRM science in approximately 1/3 of the time in twice as many filters.

• The WNEW capabilities enable science significantly beyond the scope of WFIRST.

Each array of detectors has two filters and two grisms to provide 8 photometric bands.

• Each array of detectors has two filters and two grisms to provide 8 photometric bands.

• Each dichroic assembly has two dichroics.

WNEW can implement all of the WFIRST DRM2 programs in less time with twice as many photometric bands.

• WNEW can implement all of the WFIRST DRM2 programs in less time with twice as many photometric bands.

• The 8 WNEW photometric bands greatly enhances the scientific productivity of the WFIRST DRM2 programs.

• The reduced time to implement the DRM2 programs provides extra time for innovative programs not envisioned for WFIRST.

Survey of 3400 sq. degrees to ABmag=26

• Survey of 3400 sq. degrees to ABmag=26

• WFIRST: 429 days for 4 filters
• WNEW: 122 days for 8 filters

• Survey of 3400 sq.deg R=600 ABmag=22.5 per pixel

• WFIRST: 284 days
• WNEW: 61 days

• Survey of Gal. Plane 1240 sq. deg. ABmag =25.1

• WFIRST: 160 days for 4 filters
• WNEW: 15 days for 8 filters

Monitor >2 sq. degrees for J=20.5 star with S/N=100 for 250 total days.

• Monitor >2 sq. degrees for J=20.5 star with S/N=100 for 250 total days.

• Cadence < 15 Minutes

• Time for WNEW to reach S/N=100 for J=20.5 in 4 filters is 224 seconds = 3.75 minutes.

• Better than 0.4” resolution

• WNEW has 0.11” pixels

• Automatic color information in at least 4 bands

• Automatic guard against chromatic false positives

WNEW easily meets all of the WFIRST DRM requirements in far less time than WFIRST.

• WNEW easily meets all of the WFIRST DRM requirements in far less time than WFIRST.

• WNEW easily meets all of the WFIRST DRM requirements in twice as many filters than WFIRST

• WNEW can exceed all of the WFIRST DRM requirements and still have time for additional science goals.

Very deep imaging in 4 fields of 1 square degree for 1 year.

• Very deep imaging in 4 fields of 1 square degree for 1 year.

• Fields separated by ~90 degrees on sky

• 4000 second integrations

• 8 integrations to cover 1 sq. degree in all filters

• 223 integrations at each position in one year with 10% overhead

The WNEW concept was developed during two funded studies as an origins probe. As such it has a very mature design.

• The WNEW concept was developed during two funded studies as an origins probe. As such it has a very mature design.

• WNEW simplifies the original concept by retaining only infrared bands and restricting the focal plane to a single detector type.

• Many components already have preliminary or in some cases a mature design.

Four focal planes utilizing 16 H4RG detectors (4kx4k) each.

• Four focal planes utilizing 16 H4RG detectors (4kx4k) each.

In drift away or L2 orbit the mirrors

• In drift away or L2 orbit the mirrors

• instrument and detector systems are

• radiatively cooled with no cryogenics

• required.

• Data transmission requires only 5 hours

• of DSN reception per day on a moderate size receiver equivalent to the Univ. of AZ 12m dish on Kitt Peak.

WNEW provides a greatly enhanced platform for carrying out the proposed WFIRST science program at higher sensitivity, in less time and with twice as many photometric bands.

• WNEW provides a greatly enhanced platform for carrying out the proposed WFIRST science program at higher sensitivity, in less time and with twice as many photometric bands.

• WNEW provides new science capabilities to go beyond the proposed WFIRST program.

• WNEW could start tomorrow.