Subaru/Gemini Time Exchange Program

This is the instruction for Subaru users who intend to apply for Gemini telescope time through the Subaru/Gemini Time Exchange Program in S19B/2019B.
Only Japan or Taiwan researchers (i.e., those belonging to institutes in Japan or Taiwan, or those of Japanese nationality) are eligible for this Subaru -> Gemini application.

1. Details

Directors of Subaru Telescope and Gemini Observatory agreed to continue a time exchange program for the semester which corresponds to 'S19B' of Subaru and '2019B' of Gemini, both begin on 2019 August 1 and end on 2020 January 31. This time exchange program is coordinated so that astronomers in each community can mutually access unique instruments of each telescope.

In S19B, normal observations with Gemini telescope, except ToO observations, will be executed in a 'classical' or 'queue' mode whichever you prefer. Proposals requesting Target of Opportunity (ToO) observations can be submitted to Gemini, where accepted ToO programs will be executed in a queue mode.

Scientific merits of the proposals are reviewed and determined in each TAC independently (namely, proposals from the Subaru community using Gemini are reviewed by Subaru TAC).

1-1. Gemini Large and Long Program (LLP)

The Subaru community can apply for the Gemini Large and Long Program (LLP), through the Subaru-Gemini time exchange program.

1-2. Fast Turnaround Program

The Subaru community can apply for Fast Turnaround programs, in which up to 5 nights per semester are available for Subaru Community. Their submission deadlines are monthly announced and independent from the deadline of the S19B Call for Proposals The review of Fast Turnaround programs is made following the rule set by Gemini and is done independently from Subaru TAC.

2. Telescope Downtime

Gemini North:
August 1st to 23

Gemini South:
Expected for two weeks in August over bright time, but exact dates have not yet been defined.

3. Available Instruments and Observing Time

Gemini instruments available to the Subaru community in S19B are as follows:

GMOS (North or South)
NIFS (North)
NIRI (North)
Altair (Adaptive Optics; AO) (North) (NGS and LGS)
GRACES (visiting instrument) (North)
POLISH-2 (visiting instrument) (North) (available only if there is sufficient demand)
ALOPEKE (visiting instrument) (North) (available only if there is sufficient demand)

GSAOI+GeMS (South): Queue only, Bands 1 & 2 (IQ70&IQ85) [only the second half of the semester]
FLAMINGOS-2 (South) (imaging and long-slit modes)
GPI (South)
Zorro (visiting instrument) (South) (available only if there is sufficient demand)
Phoenix (visiting instrument) (South) (available only if there is sufficient demand)

Availability is still pending for:
GNIRS (North)
TEXES (visiting instrument) (South)

Please check the Gemini 2019B Call for Proposals, which will be released 2019 February 28 (HST).

For Altair , AO with natural guide stars (NGS) and Laser guide star (LGS) are available with combination of NIFS, NIRI, and GNIRS.
All facility instruments are available for ToO observations. (only for facility instruments, not for visiting instruments.)

The unique capabilities of available Gemini instruments, compared to the existing Subaru instruments, are briefly summarized below for the Subaru community.

A brief summary of Gemini instruments
GMOS GMOS is an optical spectrograph with the Nod and Shuffle capability. Higher sensitivity than Subaru FOCAS may be expected depending on observing modes. GMOS has an integral field spectroscopic capability.
NIFS NIFS is an infrared integral field spectrograph. LGS/NGS-AO is available. Higher sensitivity than Keck OSIRIS may be expected, particularly in the K-band.
NIRI Infrared imaging with LGS/NGS-AO is possible.
GNIRS Infrared JHK longslit or cross-dispersed spectroscopy with LGS/NGS-AO is possible.
GRACES GRACES utilizes a 270 m fiber optic feed to the ESPaDOnS spectrograph at CFHT, providing a maximum resolving power of R~67,000 between 400 and 1,000 nm. The throughput redward of 600 nm is competitive with existing high-resolution spectrographs on 8-10 m class telescopes.
POLISH-2 The high-precision visitor polarimeter. The instrument is open to the community via collaborative proposals with the PI. If you are interested in obtaining data in the 2019B semester with this instrument, you must contact the PI (Sloane Wiktorowicz, as all proposals for this instrument must be in collaboration. For more details of the instrument itself, consult the following publications: Wiktorowicz & Matthews 2008, PASP, 120, 1282, Wiktorowicz & Lofi 2015, ApJL, 800, L1.
ALOPEKE/Zorro Alopeke and Zorro are the identical fast, low-noise, dual-channel, and dual-plate-scale imagers based on the Differential Speckle Survey Instrument (DSSI). In speckle mode they provide simultaneous two-color diffraction-limited optical imaging (FWHM~0.02" at 650nm) of targets as faint as V~17 over a 6.7" FoV. Wide-field mode provides simultaneous two-color imaging in standard SDSS filters over 60" FoV.
GSAOI Near-infrared, wide-field, high-spatial-resolution imaging is possible, in combination with Multi-Conjugate Adaptive Optics system (GeMS). NGS2 (to improve the sky coverage of GeMS by upgrading the current natural guide star sensor) is available.
FLAMINGOS-2 Near-infrared imaging (6.'1 diameter circular field) and multi-object spectroscopy (R = 1200-3000 within a 2'x6' quasi-rectangular field) of southern sources are possible (this MOS mode is not opened at present but only the long-slit mode is available for spectroscopy).
GPI Extreme adaptive-optics imaging polarimeter/integral-field spectrometer
Phoenix A high spectral resolution (R∼50,000-80,000) near-IR (1-5μm) echelle spectrometer built by NOAO and previously used on the Kitt Peak National Observatory 2m and 4m telescopes.
TEXES TEXES, the Texas Echelon Cross Echelle Spectrograph is a high resolution (R~4,000-100,000) mid-infrared (5-25 micron) spectrometer.

Note that the above summary is not comprehensive. Please refer to the Gemini webpage for the details of the instruments and telescopes.

We anticipate that the amount of the exchange time available in S19B is minimum 5 nights, but the actual number of exchange nights is dependent on the oversubscription rate of both telescopes and scientific evaluation by each TAC. The minimum amount of requested nights for each classical program is 1 night. However, for queue observations, programs which require repeated observations of short exposures are welcome.

All Gemini facility instruments listed above are available for ToO programs. There are two types of ToO observations. Rapid ToOs require observations within 24 hours, while Standard ToOs will have a slower response time of more than 24 hours. The PI must specify whether the observations require Rapid or Standard response. Rapid ToO programs will be charged for time spent on any observation that the Rapid ToO interrupts; both Rapid and Standard ToO programs will be charged for all on-sky calibrations.

4. Targe Accessibility

4-1. Gemini North

  Accessible Restricted** Inaccessible
-30° to +73° -37° to -30°,
+73° to +90°
< -37°
-22° to +65° -27° to -22°,
+65° to +68°
< -27° and > +68°
Right Ascension,
19h to 11h 17h to 19h,
11h to 13.5h
13.5h to 17h
Right Ascension,
20h to 10h 18h to 20h,
10h to 12.5h
12.5h to 18h

4-2. Gemini South

  Accessible Restricted** Inaccessible
Declination (non-LGS) -87° to +22° -90° to -87°,
+22° to +28°
> +28°
-70° to +10° -75° to -70°,
+10° to +15°
< -75° and > +15°
-70° to +10° -80° to -70°,
+10° to +20°
< -80° and > +20°
Right Ascension (non-LGS) 19h to 9h 16h to 19h,
9h to 12h
12h to 16h
Right Ascension (GMOS-S) 21h to 9h 19h to 21h,
9h to 12h
12h to 19h
Right Ascension,
0h to 8h 19h to 20h,
8h to 11h
11h to 19h
Right Ascension,
23h to 9h 21h to 22h,
9h to 12h
12h to 21h

Since individual instruments may have additional RA limits imposed, it is important to check the Gemini 2019B Call for Proposals, which will be released on 2019 February 28 (HST).

5. Proposal Preparation for Programs using Gemini Telescopes

Table 1. Guide for Proposers Applying for Gemini Time
Phase-I Subaru Submission Step 1. Proposers should submit their proposals via the webform by the deadline in Subaru S19B Call for Proposals (namely, noon, 2019 March 7, JST).
Phase-I Gemini Submission Step 2. They also need to file their proposals to Gemini by the electronic submission using PIT (Phase I Tool) by the deadline described in Gemini 2019B Call for Proposals (2019 March 31 HST).
Phase-II Submission Step 3. For the accepted proposals, Phase-II submission to Gemini Observatory is necessary.

5-1. Step 1. Phase-I Submission to Subaru ProMS

Proposers intending to apply Gemini observations via this Subaru Call for Proposals should access the ProMS 2.0 page to fill the webform. Proposals from the Subaru community to use Gemini are treated as ones of the Subaru Open Use Programs and are reviewed in the same way as other Subaru proposals.

How to complete the Application Form:

Please follow the instructions detailed in 'How to Submit'.

"1-12"(Observing Run):
For GMOS proposers, if Subaru/FOCAS and/or Keck/DEIMOS or LRIS are acceptable as backup instruments, please specify either of them at "2nd choice instruments".
"1-13"(Scheduling Requirements):
If your request "queue" observations, please provide detailed information here.
"1-15"(Observing Method and Technical Details):
Describe by referring to Gemini webpage.

5-2. Step 2. Phase-I Submission to Gemini

All the proposals requesting Gemini time should also be submitted to Gemini's Phase I Application, by the deadline for Gemini's semester 2019B Call for Proposals (March 31, 2019 at 23:59 HST). Gemini will be updating the Phase-I Tool every semester, so please be sure to download the latest version from the website. With the new Tool, the science and technical cases, with Figures, Tables and References, are attached as a single PDF file. Latex and Word templates are available for download from the Gemini page, which explain the required contents and page limits.

We understand that such double submissions are inconvenient, but it is needed to match the current proposal processing systems of Subaru and Gemini. Your description in the technical justification section in the Gemini Phase-I form will be used for technical evaluation by Gemini. Regarding the scientific justification (SJ) section, you can just give the same SJ (of 2 pages; i.e., you do not have to reduce it) as submitted to Subaru TAC, despite that the prescribed SJ length in Gemini Phase-I form is only 1 page. SJ is used by Gemini staff for the purpose of understanding the science goal in order to provide adequate support. The target names cannot be concealed in Gemini Phase-I submission.

Please read the instruction in Gemini 2019B Call for Proposals carefully, when available (on 2019 February 28 HST). Subaru users should use Gemini PIT and submit their proposal by the deadline 2019 March 31 (HST). Please select "Subaru" for the "partner" in PIT submission tab page.

Table 2. Gemini Phase I Submission
Deadline Subaru users should submit their Gemini Phase I application by 2019 March 31 (HST).
Submission Please use Gemini PIT and select "Subaru" as the "partner" in the "Submit" tab page.

5-3. Step 3. Phase-II Submission to Gemini

The PIs of the accepted programs have to complete the Phase-II proposal submission to Gemini by themselves, following the instruction in the web page, Phase-II Overview.

6. Phase-I Contact

Please contact

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