Program Information
# # Program information file # PROGRAM_ID 2020B057 PROGRAM_TITLE Constraining ultra-cool dwarf formation throughout the history of the Galaxy using the 30pc sample. PROGRAM_INV1 Richard Smart PROGRAM_INV2 William Cooper PROGRAM_INV3 Federico Marocco PROGRAM_INV4 Adam Burgasser PROGRAM_INV5 J. Davy Kirkpatrick PROGRAM_SCICAT stellar PROGRAM_ABSTRACT_BEG We will constrain the formation processes of ultra-cool dwarfs [UCDs] using a complete sample within 30,pc of the sun. We will derive space densities to compare to simulations of different mass functions to probe the low mass star/brown dwarf formation history of the solar neighbourhood. The spectra will be used to calibrate correlations of physical characteristics with spectral diagnostics, confirm moving group members, identify common-proper-motion companions to more massive stars, and to search for spectroscopic binaries. This large, statistically significant sample, spectroscopically classified and with reliable G astrometry, will be a fundamental calibration point for other programs focusing on cooler objects, for example at the L/T boundary to investigate brown dwarf birth rates. The 30,pc UCD population is being censored using multi-band photometry and G astrometry, this proposal will spectroscopically characterise them. The current census has 585 UCD candidates of which 382 are published in the literature, 51 have been spectroscopically confirmed by this team, and 152 are pending confirmation. This proposal is to observe the northern hemisphere candidates while the southern targets are being observed with TSpec/SOAR as part of a large, ongoing, international collaboration. The spectra are also being used to improve the training set of the UCD work-package of the Gaia Data Processing and Analysis Consortium pipeline to improve the procedures for generating a complete UCD sample to the Gaia detection limit. This dataset, simply because it will be complete, homogenous and local, will remain the authoritative sample of ultra-cool dwarfs, bridging the stellar to sub-stellar boundary, for the foreseeable future. PROGRAM_ABSTRACT_END
Target Information
Target Information for Obsgroup sbd_20201124_140156 Object name: J0808+3157 NAIF ID: N/A Object Magnitude: 11.7 Number of FTIS files in group: 4 Telescope Last Slew Coordinates: RA: 08:08:01.86 Dec: +31:57:02.9 Coordinate System: fk5 Equinox: 2000.0 Proper motion RA (sec/yr): 0.0000 Proper motion Dec (arcsec/yr): 0.0000 Proper motion Epoch: 2000.0 Non-sidereal rate RA (as/sec): 0.0000 Non-sidereal rate Dec (as/sec): 0.0000 Date of Obs. UT (Start): 2020-11-24 Time of Obs. UT (Start): 14:01:56 Time of Obs. UT (End): 14:23:12 Hour Angle (Start): -00:13:22.44 Hour Angle (End): 00:02:41.02 Airmass (Start): 1.024 Airmass (End): 1.023 Unique Integration times (sec): 299.8 Int. time [total A beam] (sec): 599.6 Int. time [total B beam] (sec): 599.6 SBD (Bigdog) SpeX Spectrograph Setup: Dichroic (DIT) open Order Sorter Filter (OSF) Open Sky position angle, deg (POSANGLE) 199.49 Slit Wheel (SLIT) 0.3x15 Grating (GRAT) Prism Moon Proximity: Elevation range (deg) -28.2 to -33.0 Angular separation range (deg) 119.3 to 119.1 Fraction illumination 71.9 to 72.0 Moon RA,Dec (Start) 00:02:16.71 -05:21:07.6 Weather: Seeing range (arcsec) 0.5 to 0.5 Humidity range (0-100%) 45.7 to 64.7 Optical depth range (TAU 225GHz) No Data Wind speed range, mph 6.3 to 9.8 Data taken by 2020B057 on this date: INST_YYYYMMDD_HHMMSS Datatype NumFITS [___O=OSF S=SLIT G=GRAT Gf=GFLT ______] ___RA______ ___DEC_____ __OBJECT_NAME|SOURCE|NAIF-ID__ sbd_20201124_045744 target 2 O=Open S=0.3x15 G=Prism 23:28:34.75 +13:57:03.4 J2328+1357|userlist|NULL sbd_20201124_064131 target 4 O=Open S=0.3x15 G=Prism 23:28:34.75 +13:57:03.4 J2328+1357|userlist|NULL sbd_20201124_070349 calibration 6 O=Open S=0.3x15 G=Prism 23:28:35.24 +13:57:05.9 calibration|NULL|NULL sbd_20201124_070935 target 4 O=Open S=0.3x15 G=Prism 23:57:46.21 +11:28:27.8 HD_224429|userlist|NULL sbd_20201124_071341 calibration 6 O=Open S=0.3x15 G=Prism 23:57:47.07 +11:28:33.3 calibration|NULL|NULL sbd_20201124_072254 target 4 O=Open S=0.3x15 G=Prism 00:58:50.13 +48:35:26.4 J0058+4835|userlist|NULL sbd_20201124_074528 calibration 6 O=Open S=0.3x15 G=Prism 00:58:51.63 +48:35:37.5 calibration|NULL|NULL sbd_20201124_075029 target 4 O=Open S=0.3x15 G=Prism 01:38:01.66 +45:59:54.0 HD___9935|userlist|NULL sbd_20201124_075323 calibration 6 O=Open S=0.3x15 G=Prism 01:38:02.98 +46:00:04.6 calibration|NULL|NULL sbd_20201124_080251 target 2 O=Open S=0.3x15 G=ShortXD 01:03:21.25 +26:26:03.6 J0103+2626|userlist|NULL sbd_20201124_082155 target 6 O=Open S=0.3x15 G=Prism 01:03:21.25 +26:26:03.6 J0103+2626|userlist|NULL sbd_20201124_085537 calibration 6 O=Open S=0.3x15 G=Prism 01:03:22.19 +26:26:15.2 calibration|NULL|NULL sbd_20201124_085954 standard 4 O=Open S=0.3x15 G=Prism 01:12:52.99 +32:04:31.6 HD___7215|userlist|NULL sbd_20201124_090244 calibration 6 O=Open S=0.3x15 G=Prism 01:12:53.90 +32:04:41.5 calibration|NULL|NULL sbd_20201124_091428 target 6 O=Open S=0.3x15 G=Prism 02:40:18.73 +07:27:46.1 J0240+0727|userlist|NULL sbd_20201124_095038 calibration 6 O=Open S=0.3x15 G=Prism 02:40:19.60 +07:27:50.1 calibration|NULL|NULL sbd_20201124_095445 standard 4 O=Open S=0.3x15 G=Prism 03:28:43.03 +04:21:25.6 HD__21555|userlist|NULL sbd_20201124_095707 calibration 6 O=Open S=0.3x15 G=Prism 03:28:43.99 +04:21:29.8 calibration|NULL|NULL sbd_20201124_100633 target 1 O=Open S=0.3x15 G=Prism 03:25:43.70 -05:51:10.0 J0325-0551|userlist|NULL sbd_20201124_105222 target 6 O=Open S=0.3x15 G=Prism 03:25:43.70 -05:51:10.0 J0325-0551|userlist|NULL sbd_20201124_112548 calibration 6 O=Open S=0.3x15 G=Prism 03:25:44.58 -05:51:07.0 calibration|NULL|NULL sbd_20201124_113001 target 4 O=Open S=0.3x15 G=Prism 04:04:29.82 -06:10:22.2 HD__25709|userlist|NULL sbd_20201124_113241 calibration 6 O=Open S=0.3x15 G=Prism 04:04:30.64 -06:10:19.6 calibration|NULL|NULL sbd_20201124_114029 target 6 O=Open S=0.3x15 G=Prism 05:34:24.43 +16:52:54.6 J0534+1652|userlist|NULL sbd_20201124_121357 calibration 6 O=Open S=0.3x15 G=Prism 05:34:25.37 +16:53:03.4 calibration|NULL|NULL sbd_20201124_121833 target 4 O=Open S=0.3x15 G=Prism 06:18:06.23 +17:07:29.4 HD__43662|userlist|NULL sbd_20201124_122054 calibration 6 O=Open S=0.3x15 G=Prism 06:18:07.49 +17:07:31.0 calibration|NULL|NULL sbd_20201124_122833 target 4 O=Open S=0.3x15 G=Prism 05:55:25.07 +16:08:39.4 J0555+1608|userlist|NULL sbd_20201124_125039 calibration 6 O=Open S=0.3x15 G=Prism 05:55:25.78 +16:08:46.5 calibration|NULL|NULL sbd_20201124_125501 target 4 O=Open S=0.3x15 G=Prism 06:41:21.94 +16:23:51.6 HD__47863|userlist|NULL sbd_20201124_125721 calibration 6 O=Open S=0.3x15 G=Prism 06:41:22.97 +16:23:56.7 calibration|NULL|NULL sbd_20201124_130440 target 4 O=Open S=0.3x15 G=Prism 06:45:08.71 -06:44:16.4 J0645-0644|userlist|NULL sbd_20201124_132656 calibration 6 O=Open S=0.3x15 G=Prism 06:45:09.92 -06:44:11.1 calibration|NULL|NULL sbd_20201124_133537 target 4 O=Open S=0.3x15 G=Prism 07:05:08.99 +47:46:30.2 HD__52860|userlist|NULL sbd_20201124_133814 calibration 6 O=Open S=0.3x15 G=Prism 07:31:00.75 +20:38:05.4 calibration|NULL|NULL sbd_20201124_140156 target 4 O=Open S=0.3x15 G=Prism 08:08:01.86 +31:57:02.9 J0808+3157|userlist|NULL sbd_20201124_142403 calibration 6 O=Open S=0.3x15 G=Prism 08:08:03.06 +31:57:09.3 calibration|NULL|NULL sbd_20201124_142855 standard 4 O=Open S=0.3x15 G=Prism 08:31:19.97 +37:15:53.8 HD__71906|userlist|NULL sbd_20201124_143115 calibration 6 O=Open S=0.3x15 G=Prism 08:31:21.14 +37:16:05.0 calibration|NULL|NULL sbd_20201124_144458 target 4 O=Open S=0.3x15 G=Prism 09:43:43.48 -02:29:56.0 J0943-0229|userlist|NULL sbd_20201124_150715 calibration 6 O=Open S=0.3x15 G=Prism 09:43:44.48 -02:29:51.2 calibration|NULL|NULL sbd_20201124_151105 target 4 O=Open S=0.3x15 G=Prism 09:53:42.66 -03:51:43.2 HD__85734|userlist|NULL sbd_20201124_151336 calibration 6 O=Open S=0.3x15 G=Prism 09:53:43.86 -03:51:39.5 calibration|NULL|NULL sbd_20201124_152150 target 4 O=Open S=0.3x15 G=Prism 10:02:36.00 +25:56:42.9 J1002+2556|t3remote|NULL sbd_20201124_154359 calibration 6 O=Open S=0.3x15 G=Prism 10:02:37.28 +25:56:49.9 calibration|NULL|NULL sbd_20201124_154944 standard 4 O=Open S=0.3x15 G=Prism 10:18:10.51 +27:24:55.7 HD__89239|userlist|NULL sbd_20201124_155344 calibration 6 O=Open S=0.3x15 G=Prism 10:18:11.85 +27:25:06.9 calibration|NULL|NULL TOTAL ObsGroup Files: 233 END
QA Information
Archive group: sbd_20201124_140156
Instrument: IRTF/SpeX
Instrument mode: Prism
Slit width: 0.3 arcsec (=3 pixels)
Target type: science target
Flat field and wavelength calibration group: sbd_20201124_142403
Last slew RA, Dec: 08:08:01.86 31:57:02.9
On-source integration time: 1199.0 sec
Airmass averaged over integration time: 1.02
Quicklook reduction information:
---QA processing date and time: 03/11/21 04:12:25 HST
---2D images combined before spectral extraction.
---Apertures scaled to median with factors: 1.41664, 0.583356
before combining them.
---Spectrum not divided over standard star
Signal/Noise values (per pixel):
---------------------------------
order S/N @lambda S/N
max micron median
---------------------------------
1 208. 1.31136 115.
---------------------------------
---Column 1: spectral order.
---Column 2: maximum S/N, excluding unresolved spikes.
---Column 3: wavelength at which maximum S/N occurs.
---Column 4: median S/N.
---Multiply with 1.73 for S/N per resolution element.
Weather Summary
