J/AJ/159/282 Membership in Ophiuchus & Upper Scorpius complex (Esplin+, 2020)
A survey for new stars and brown dwarfs in the Ophiuchus star-forming complex.
Esplin T.L., Luhman K.L.
<Astron. J., 159, 282 (2020)>
=2020AJ....159..282E 2020AJ....159..282E
ADC_Keywords: Star Forming Region; Stars, pre-main sequence; Stars, dwarfs;
Spectra, optical; Spectra, infrared; Spectral types;
Cross identifications
Keywords: Pre-main sequence stars ; Young stellar objects ; Brown dwarfs ;
Low mass stars
Abstract:
We have performed a survey for new members of the Ophiuchus cloud
complex using high-precision astrometry from the second data release
of Gaia, proper motions measured with multi-epoch images from the
Spitzer Space Telescope, and color-magnitude diagrams constructed with
photometry from various sources. Through spectroscopy of candidates
selected with those data, we have identified 155 new young stars.
Based on available measurements of kinematics, we classify 102, 47,
and 6 of those stars as members of Ophiuchus, Upper Sco, and other
populations in Sco-Cen, respectively. We have also assessed the
membership of all other stars in the vicinity of Ophiuchus that have
spectroscopic evidence of youth from previous studies, arriving at a
catalog of 373 adopted members of the cloud complex. For those adopted
members, we have compiled mid-infrared photometry from Spitzer and the
Wide-field Infrared Survey Explorer and have used mid-infrared colors
to identify and classify circumstellar disks. We find that 210 of the
members show evidence of disks, including 48 disks that are in
advanced stages of evolution. Finally, we have estimated the relative
median ages of the populations near the Ophiuchus clouds and the
surrounding Upper Sco association using absolute K-band magnitudes
(MK) based on Gaia parallaxes. If we adopt an age 10Myr for Upper Sco,
then the relative values of MK imply median ages of ∼2Myr for L1689
and embedded stars in L1688, 3-4Myr for low-extinction stars near
L1688, and ∼6Myr for the group containing ρOph.
Description:
From 2003-August to 2009-May, the Infrared Array Camera (IRAC) on the
Spitzer Space Telescope operated with four broadband filters centered
at 3.6, 4.5, 5.8, and 8.0µm to measure proper motions. See details
on table3. To work toward a more complete census of the stellar and
substellar members of Ophiuchus, we have performed a new survey of the
region that is based primarily on high-precision astrometry from the
Gaia mission and proper motions measured with multi-epoch imaging from
the Spitzer Space Telescope.
Optical spectroscopy was performed with the Cerro Tololo Ohio State
Multi-Object Spectrograph (COSMOS) at the 4m Blanco telescope at the
Cerro Tololo Inter-American Observatory (CTIO) and the Inamori
Magellan Areal Camera and Spectrograph (IMACS) on the Magellan I
telescope at Las Campanas Observatory.
Near-IR spectra were obtained with the Cornell Massachusetts Slit
Spectrograph (CorMASS) on the Magellan II telescope, the Astronomy
Research using the Cornell Infra Red Imaging Spectrograph (ARCoIRIS)
at the 4m Blanco telescope at CTIO, FLAMINGOS-2 on the Gemini South
Telescope, the Gemini Near-Infrared Spectrographon the Gemini North
Telescope (GNIRS), and SpeX at the NASA Infrared Telescope Facility
(IRTF).
The instrument configurations are summarized in Table5.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 692 373 Members of the Ophiuchus Complex
table2.dat 370 59 Young non-members toward the Ophiuchus Complex
table3.dat 36 258 IRAC observations of Oph
table4.dat 333 259 Candidate members of Upper Sco and Ophiuchus
table5.dat 67 7 Optical and NIR spectroscopic observing log
table6.dat 108 230 Spectroscopic data for candidate members of
Ophiuchus and Upper Sco
refs.dat 85 55 References used
--------------------------------------------------------------------------------
See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
II/319 : UKIDSS-DR9 LAS, GCS and DXS Surveys (Lawrence+ 2012)
II/314 : UKIDSS-DR8 LAS, GCS and DXS Surveys (Lawrence+ 2012)
II/328 : AllWISE Data Release (Cutri+ 2013)
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)
J/A+A/337/403 : Low-mass stars evolutionary models (Baraffe+ 1998)
J/A+A/333/619 : Upper Scorpius OB association Li survey (Preibisch+, 1998)
J/ApJ/525/466 : Young low-mass stars & brown dwarfs in IC348 (Luhman+, 1999)
J/A+A/359/113 : X-ray and IR study of Rho Oph dark cloud (Grosso+, 2000)
J/A+A/372/173 : ISOCAM obs. of the rho Ophiuchi cloud (Bontemps+, 2001)
J/A+A/402/963 : Stephenson Hα stars (Maheswar+, 2003)
J/AJ/129/856 : Herbig Ae/Be stars in nearby OB assoc. (Hernandez+, 2005)
J/ApJ/620/1010 : Spitzer 24µm photometry of A dwarfs (Rieke+, 2005)
J/AJ/130/1733 : Optical spectroscopy of ρ Oph stars (Wilking+, 2005)
J/A+A/452/245 : Near-IR photometry of PMS stars in rho Oph (Natta+, 2006)
J/AJ/132/866 : New M dwarfs in solar neighborhood (Riaz+, 2006)
J/AJ/131/3016 : Low-mass objects in Upper Scorpius (Slesnick+, 2006)
J/A+A/460/695 : Search Associations Containing Young stars (Torres+, 2006)
J/ApJ/662/1067 : Sptizer observations of sigma Orionis (Hernandez+, 2007)
J/ApJ/688/377 : Low-mass objects in Upper Scorpius. II. (Slesnick+, 2008)
J/ApJS/181/321 : Properties of Spitzer c2d dark clouds (Evans+, 2009)
J/A+A/515/A75 : Low-mass pop. in ρOph cloud (Alves de Oliveira+, 2010)
J/ApJ/712/925 : Transition circumstellar disks in Ophiuchus (Cieza+, 2010)
J/ApJS/186/111 : Spitzer observations of Taurus members (Luhman+, 2010)
J/AJ/142/140 : Optical spectroscopy of ρOph stars. II. (Erickson+,2011)
J/AJ/144/148 : IR photometry of brown dwarf and Hyper-LIRG (Griffith+,2012)
J/ApJ/758/31 : IR photometry for members of Upper Sco (Luhman+, 2012)
J/ApJ/744/134 : SONYC new brown dwarfs in ρ Oph (Muzic+, 2012)
J/ApJ/746/154 : Improved kinematic plx for Sco-Cen members (Pecaut+, 2012)
J/ApJ/749/79 : Transition disks. II. Southern MoC (Romero+, 2012)
J/ApJ/784/126 : IR photometry of all known members in Taurus (Esplin+, 2014)
J/AJ/148/122 : YSOVAR: infrared photometry in Lynds 1688 (Gunther+, 2014)
J/ApJ/786/97 : Photospheric properties of T Tauri stars (Herczeg+, 2014)
J/A+A/579/A66 : Accretion in ρ-Ophiucus (Manara+, 2015)
J/MNRAS/448/2737 : New PMS K/M Stars in Upper Scorpius (Rizzuto+, 2015)
J/MNRAS/461/794 : Scorpius-Centaurus K-Type Stars (Pecaut+, 2016)
J/AJ/154/134 : Planetary-mass brown dwarfs in the Taurus SFR (Esplin+,2017)
J/AJ/154/46 : PMs and photometry for members of ChaI (Esplin+, 2017)
J/AJ/153/46 : Spectroscopy of candidate members in Taurus (Luhman+, 2017)
J/AJ/156/75 : Circumstellar disks in the Upper Sco assoc. (Esplin+, 2018)
J/ApJ/862/138 : BANYAN. XIII. Nearby young assoc. Gaia DR2 (Gagne+, 2018)
J/AJ/156/271 : The stellar membership of the Taurus SFR (Luhman, 2018)
J/AJ/156/76 : New young stars and brown dwarfs in Upper Sco (Luhman+,2018)
J/A+A/626/A80 : Census of Rho Oph cand. memb. from Gaia DR2 (Canovas+, 2019)
J/A+A/623/A112 : The Sco OB2 population from Gaia DR2 data (Damiani+, 2019)
http://www.rssd.esa.int/doc_fetch.php?id=3757412 : Re-normalising the
Astrometric chi-square in Gaia DR2 (Lindegren+, 2018)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 16 A16 --- 2MASS 2MASS Point Source Catalog source name
18- 35 A18 --- UGCS UKIDSS Galactic Clusters Survey source name
(1)
37- 62 A26 --- WISEA AllWISE source name (2)
64- 82 I19 --- Gaia ? Gaia DR2 source name
84- 86 A3 --- SR Designation from Struve & Rudkjobing,
1949ApJ...109...92S 1949ApJ...109...92S
88- 89 I2 --- DoAr ? Designation from Dolidze & Arakelyan,
1959AZh....36..444D 1959AZh....36..444D
91- 92 I2 --- GSS ? Designation from Grasdalen+,
1973ApJ...184L..53G 1973ApJ...184L..53G
94- 95 I2 --- VSSG ? Designation from Vrba+, 1975ApJ...197...77V 1975ApJ...197...77V
97-100 A4 --- Elias Designation from Elias+, 1978ApJ...223..859E 1978ApJ...223..859E
102-104 A3 --- ROX Designation from Montmerle+,
1983ApJ...269..182M 1983ApJ...269..182M
106-107 I2 --- WL ? Designation from Wilking & Lada,
1983ApJ...274..698W 1983ApJ...274..698W
109-111 A3 --- WSB Designation from Wilking+,
1987AJ.....94..106W 1987AJ.....94..106W
113-115 I3 --- HBC ? Designation from Herbig & Bell,
1988LicOB1111....1H 1988LicOB1111....1H
117-121 A5 --- WLY Designation from Wilking+,
1989ApJ...340..823W 1989ApJ...340..823W
123-124 A2 --- LFAM Designation from Leous+, 1991ApJ...379..683L 1991ApJ...379..683L
126-128 I3 --- GY ? Designation from Greene & Young,
1992ApJ...395..516G 1992ApJ...395..516G
130-133 A4 --- ROXs Designation from Bouvier & Appenzeller,
1992A&AS...92..481B 1992A&AS...92..481B
135-137 A3 --- ROXR1 Designation from Casanova+,
1995ApJ...439..752C 1995ApJ...439..752C
139-140 A2 --- ROXA Designation from Kamata+, 1997PASJ...49..461K 1997PASJ...49..461K
142-153 A12 --- RXJ Designation from Martin+, 1998MNRAS.300..733M 1998MNRAS.300..733M
155-157 A3 --- ROXR Designation from Grosso+, 2000, J/A+A/359/113
159-161 I3 --- ISOOph ? Designation from Botemps+, 2001,
J/A+A/372/173
163-164 I2 --- ROXN ? Designation from Ozawa+, 2005,
J/A+A/429/963
166-168 I3 --- CFHTWIROph ? Designation from Alves de Oliveira+, 2010,
J/A+A/515/A75
170-184 A15 --- OName Other common identifier
186-195 F10.6 deg RAdeg [243.1/248.7] Right Ascension (J2000)
197-206 F10.6 deg DEdeg [-26.5/-19.8] Declination (J2000)
208-214 A7 --- Ref-Pos Reference RAdeg and DEdeg positions (3)
216-221 A6 --- Region Region in Figure 1
223-253 A31 --- SpType Spectral Type
255-270 A16 --- r_SpType Reference for SpType
272-276 A5 --- SpT Adopted spectral type
278-284 F7.3 mas/yr pmRA [-17.9/3.5]? Proper motion in RA from Gaia
DR2
286-290 F5.3 mas/yr e_pmRA [0.08/3.9]? Error in GaiapmRA
292-298 F7.3 mas/yr pmDE [-34.6/-16.6]? Proper motion in DE from Gaia
DR2
300-304 F5.3 mas/yr e_pmDE [0.04/2.74]? Error in GaiapmDE
306-311 F6.3 mas plx [3.29/15.54]? Parallax from Gaia DR2
313-317 F5.3 mas e_plx [0.03/1.95]? Error in plx
319-324 F6.3 mag Gmag [4.85/21.4]? G magnitude from Gaia DR2
326-331 F6.3 mag e_Gmag [4.85/21.4]? Error in Gmag
333-338 F6.3 mag BPmag [5.07/22.1]? G_BP magnitude from Gaia DR2
340-344 F5.3 mag e_BPmag [0.001/0.45]? Error in GBPmag
346-351 F6.3 mag RPmag [4.59/19.2]? G_RP magnitude from Gaia DR2
353-357 F5.3 mag e_RPmag [0.001/0.18]? Error in GRPmag
359-363 F5.2 --- RUWE [0.77/31.8]? Re-normalized unit weight error
from Lindegren+, 2018.
365-371 F7.2 mas/yr pmRA-IR [-174.6/42.6]? Proper motion in RA from IRAC
373-378 F6.2 mas/yr e_pmRA-IR [0.18/182.3]? Error in IRpmRA
380-386 F7.2 mas/yr pmDE-IR [-188.5/17]? Proper motion DE from IRAC
388-393 F6.2 mas/yr e_pmDE-IR [0.15/131.7]? Error in IRpmDE
395-399 F5.2 mag Jmag [3.57/19.2]? J magnitude
401-404 F4.2 mag e_Jmag [0.01/0.29]? Error in Jmag
406-411 A6 --- r_Jmag ? Reference for Jmag (4)
413-417 F5.2 mag Hmag [3.35/17.53]? H magnitude
419-422 F4.2 mag e_Hmag [0/0.25]? Error in Hmag
424-429 A6 --- r_Hmag ? Reference for Hmag (4)
431-435 F5.2 mag Kmag [3.17/15.97]? Ks or K magnitude
437-440 F4.2 mag e_Kmag [0/0.52]? Error in Kmag
442-447 A6 --- r_Kmag ? Reference for Kmag (4)
449-454 F6.3 mag 3.6mag [3.47/14.8]? Spitzer/IRAC 3.6um magnitude
456-459 F4.2 mag e_3.6mag [0.01/0.05]? Error in 3.6mag
461-465 A5 --- f_3.6mag Flag on 3.6mag (5)
467-472 F6.3 mag 4.5mag [3.46/14.7]? Spitzer/IRAC 4.5um magnitude
474-478 F5.3 mag e_4.5mag [0.02/0.05]? Error in 4.5mag
480-484 A5 --- f_4.5mag Flag on 4.5mag (5)
486-491 F6.3 mag 5.8mag [3.46/15.1]? Spitzer/IRAC 5.8um magnitude
493-497 F5.3 mag e_5.8mag [0.01/0.2]? Error in 5.8mag
499-503 A5 --- f_5.8mag Flag on 5.8mag (5)
505-510 F6.3 mag 8.0mag [2.76/15.1]? Spitzer/IRAC 8.0um magnitude
512-516 F5.3 mag e_8.0mag [0/0.44]? Error in 8.0mag
518-522 A5 --- f_8.0mag Flag on 8.0mag (5)
524-529 F6.3 mag 24mag [-0.04/10.9]? Spitzer/MIPS 24um magnitude
531-535 F5.3 mag e_24mag [0.01/0.37]? Error in 24mag
537-545 A9 --- f_24mag Flag on 24mag (5)
547-552 F6.3 mag W1mag [5.4/15.3]? WISE W1 magnitude (33526Å)
554-558 F5.3 mag e_W1mag [0.01/0.29]? Error in W1mag
560-564 A5 --- f_W1mag Flag on W1mag (5)
566-571 F6.3 mag W2mag [6.1/14.8]? WISE W2 magnitude (46028Å)
573-577 F5.3 mag e_W2mag [0.01/0.21]? Error in W2mag
579-589 A11 --- f_W2mag Flag on W2mag (5)
591-596 F6.3 mag W3mag [2.63/12.11]? WISE W3 magnitude (115608Å)
598-602 F5.3 mag e_W3mag [0.01/0.4]? Error in W3mag
604-614 A11 --- f_W3mag Flag on W3mag (5)
616-621 F6.3 mag W4mag [-1.61/9]? WISE W4 magnitude (220883Å)
623-627 F5.3 mag e_W4mag [0.01/0.43]? Error in W4mag
629-639 A11 --- f_W4mag Flag on W4mag (5)
641-642 A2 --- Exc4.5 Excess present in [4.5]?
644-645 A2 --- Exc8.0 Excess present in [8.0]?
647-648 A2 --- Exc24 Excess present in [24]?
650-651 A2 --- ExcW2 Excess present in W2?
653-654 A2 --- ExcW3 Excess present in W3?
656-657 A2 --- ExcW4 Excess present in W4?
659-678 A20 --- DiskType Disk Type
680-684 F5.3 mag Ak [0.04/6.62]? Extinction in K
686-692 A7 --- f_Ak Method for estimating Ak (6)
--------------------------------------------------------------------------------
Note (1): Based on coordinates from Data Release 10 of the UKIDSS Galactic
Clusters Survey for stars with Ks>10 from 2MASS.
Note (2): Coordinate-based identifications from the AllWISE Source
Catalog when available. Otherwise, identifications are from
the AllWISE Reject Table or the WISE All-Sky Catalog.
Note (3): References as follows:
2MASS = 2MASS Point Source Catalog;
UKIDSS = UKIDSS DR10 Catalog;
Gaia = Gaia DR2;
Kraus14 = Kraus+, 2014ApJ...781...20K 2014ApJ...781...20K.
Note (4): References as follows:
2MASS = 2MASS Point Source Catalog;
UKIDSS = UKIDSS Data Release 10;
ISPI = our ISPI photometry from Section 3.3;
VHS = VHS Data Release 6.
Note (5): Flags as follows:
nodet = non-detection;
sat = saturated;
out = outside of the camera's field of view;
bl = photometry may be affected by blending with a nearby star;
bin = includes an unresolved binary companion;
err = W2 magnitudes brighter than ∼6 mag are erroneous;
unres = too close to a brighter star to be detected;
ext = photometry is known or suspected to be contaminated by
extended emission (no data given when extended emission dominates);
false = detection from WISE catalog appears false or unreliable based
on visual inspection.
Note (6): Methods as follows:
J-H = derived from these colors assuming photospheric near-IR
colors (Luhman & Esplin 2020, submitted);
H-K = derived from these colors assuming photospheric near-IR
colors (Luhman & Esplin 2020, submitted);
IR spec = derived from an infrared spectrum.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 16 A16 --- 2MASS 2MASS Point Source Catalog source name
18- 35 A18 --- UGCS UKIDSS Galactic Clusters Survey source name (1)
37- 61 A25 --- WISEA AllWISE source name (2)
63- 81 I19 --- Gaia Gaia DR2 source name
83- 83 I1 --- SR ? Designation from Struve & Rudkjobing,
1949ApJ...109...92S 1949ApJ...109...92S
85- 86 I2 --- DoAr ? Designation from Dolidze & Arakelyan,
1959AZh....36..444D 1959AZh....36..444D
88- 89 I2 --- GSS ? Designation from Grasdalen+,
1973ApJ...184L..53G 1973ApJ...184L..53G
91- 92 I2 --- VSSG ? Designation from Vrba+, 1975ApJ...197...77V 1975ApJ...197...77V
94- 97 A4 --- Elias Designation from Elias+, 1978ApJ...223..859E 1978ApJ...223..859E
99-100 I2 --- ROX ? Designation from Montmerle+,
1983ApJ...269..182M 1983ApJ...269..182M
102-103 I2 --- WSB ? Designation from Wilking+,
1987AJ.....94..106W 1987AJ.....94..106W
105-107 I3 --- HBC ? Designation from Herbig & Bell,
1988LicOB1111....1H 1988LicOB1111....1H
109-112 A4 --- WLY Designation from Wilking+, 1989ApJ...340..823W 1989ApJ...340..823W
114-115 I2 --- LFAM ? Designation from Leous+, 1991ApJ...379..683L 1991ApJ...379..683L
117-119 I3 --- GY ? Designation from Greene & Young,
1992ApJ...395..516G 1992ApJ...395..516G
121-123 A3 --- ROXs Designation from Bouvier & Appenzeller,
1992A&AS...92..481B 1992A&AS...92..481B
125-127 A3 --- ROXR1 Designation from Casanova+, 1995ApJ...439..752C 1995ApJ...439..752C
129-130 I2 --- ROXA ? Designation from Kamata+, 1997PASJ...49..461K 1997PASJ...49..461K
132-143 A12 --- RXJ Designation from Martin+, 1998MNRAS.300..733M 1998MNRAS.300..733M
145-147 A3 --- ROXR Designation from Grosso+, 2000, J/A+A/359/113
149-151 I3 --- ISOOph ? Designation from Botemps+, 2001,
J/A+A/372/173
153-168 A16 --- OName Other common identifier
170-179 F10.6 deg RAdeg [245.3/249.1] Right Ascension from Gaia DR2
(J2000)
181-190 F10.6 deg DEdeg [-25.1/-22.8] Declination from Gaia DR2 (J2000)
192-219 A28 --- SpType Spectral Type
221-240 A20 --- r_SpType Reference for SpType
241-245 A5 --- SpT Adopted spectral type
247-253 F7.3 mas/yr pmRA [-20.2/-2.17]? Proper motion in RA from Gaia
DR2
255-259 F5.3 mas/yr e_pmRA [0.1/1.3]? Error in GaiapmRA
261-267 F7.3 mas/yr pmDE [-28.6/-18.1]? Proper motion in DE from Gaia
DR2
269-273 F5.3 mas/yr e_pmDE [0.07/0.83]? Error in GaiapmDE
275-279 F5.3 mas plx [5.66/8.17]? Parallax from Gaia DR2
281-285 F5.3 mas e_plx [0.04/0.54]? Error in plx
287-292 F6.3 mag Gmag [7.07/19.5] G magnitude from Gaia DR2
294-299 F6.3 mag e_Gmag [7.07/19.5] Error in Gmag
301-306 F6.3 mag BPmag [7.31/22.07]? GBP magnitude from Gaia DR2
308-312 F5.3 mag e_BPmag [0.001/0.4]? Error in GBPmag
314-319 F6.3 mag RPmag [6.68/17.8]? GRP magnitude from Gaia DR2
321-325 F5.3 mag e_RPmag [0.001/0.03]? Error in GRPmag
327-331 F5.2 --- RUWE [0.83/20.9]? Re-normalized unit weight error
from Lindegren+, 2018
333-337 F5.2 mag Jmag [6.11/14.4] J magnitude from 2MASS Point Source
Catalog
339-342 F4.2 mag e_Jmag [0.02/0.06] Error in Jmag
344-348 F5.2 mag Hmag [5.92/13.8] H magnitude from 2MASS Point
Source Catalog
350-353 F4.2 mag e_Hmag [0.02/0.07] Error in Hmag
355-359 F5.2 mag Ksmag [5.78/13.4] Ks magnitude from 2MASS Point
Source Catalog
361-364 F4.2 mag e_Ksmag [0.02/0.06] Error in Ksmag
366-370 A5 --- Pops Gaia parallax and proper motion consistent with
these populations (3)
--------------------------------------------------------------------------------
Note (1): Based on coordinates from Data Release 10 of the UKIDSS Galactic
Clusters Survey for stars with Ks>10 from 2MASS.
Note (2): Coordinate-based identifications from the AllWISE Source
Catalog when available. Otherwise, identifications are from
the AllWISE Reject Table or the WISE All-Sky Catalog.
Note (3): Flag as follows:
O/o = Ophiuchus;
U/u = Upper Sco;
S/s = remainder of Sco-Cen;
n = none of those populations.
Upper case letters indicate that both proper motion and parallax
support membership in that population. Lower case letters indicate
that either proper motion or parallax supports membership while the
other parameter is inaccurate, unreliable, or unavailable.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 I8 --- AOR [3651840/47843328] Astronomical Observing Request ID
10- 14 I5 --- PID [6/90071] Program ID
16- 29 A14 --- PI Principle Investigator
31- 36 F6.1 yr Epoch [2004/2014] Year of Observation
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 17 A17 --- 2MASS 2MASS Point Source Catalog source name
19- 37 A19 --- UGCS UKIDSS Galactic Clusters Survey source name
(1)
39- 57 A19 --- WISEA AllWISE source name
59- 77 I19 --- Gaia ? Gaia DR2 source name
79- 88 F10.6 deg RAdeg [244.9/250.4] Right Ascension (J2000)
90- 99 F10.6 deg DEdeg [-25.3/-22.8] Declination (J2000)
101-106 A6 --- Ref-Pos Reference RAdeg and DEdeg positions (2)
108-114 F7.3 mas/yr pmRA [-16.7/-4.34]? Proper motion in RA from Gaia
DR2
116-120 F5.3 mas/yr e_pmRA [0.08/2.22]? Error in GaiapmRA
122-128 F7.3 mas/yr pmDE [-28.2/-19.3]? Proper motion in DE from Gaia
DR2
130-134 F5.3 mas/yr e_pmDE [0.05/1.34]? Error in GaiapmDE
136-140 F5.3 mas plx [0.16/8.11]? Parallax from Gaia DR2
142-146 F5.3 mas e_plx [0.03/0.95]? Error in plx
148-153 F6.3 mag Gmag [11.9/21.2]? G magnitude from Gaia DR2
155-160 F6.3 mag e_Gmag [11.9/21.2]? Error in Gmag
162-167 F6.3 mag BPmag [12.8/22.2]? G_BP magnitude from Gaia DR2
169-173 F5.3 mag e_BPmag [0.001/0.43]? Error in GBPmag
175-180 F6.3 mag RPmag [10.9/19.2]? G_RP magnitude from Gaia DR2
182-186 F5.3 mag e_RPmag [0.001/0.09]? Error in GRPmag
188-192 F5.2 --- RUWE [0.8/48.1]? Re-normalized unit weight error
Lindegren+, 2018
194-200 F7.2 mas/yr pmRA-IR [-409/7.2]? Proper motion in RA from IRAC
202-207 F6.2 mas/yr e_pmRA-IR [0.02/600]? Error in IRpmRA
209-214 F6.2 mas/yr pmDE-IR [-32.2/704]? Proper motion DE from IRAC
216-221 F6.2 mas/yr e_pmDE-IR [0.05/192]? Error in IRpmDE
223-227 F5.2 mag Jmag [9.31/20.2]? J magnitude
229-232 F4.2 mag e_Jmag [0/0.37]? Error in Jmag
234-239 A6 --- r_Jmag ? Reference for Jmag (3)
241-245 F5.2 mag Hmag [8.57/19.2]? H magnitude
247-250 F4.2 mag e_Hmag [0.01/0.28]? Error in Hmag
252-257 A6 --- r_Hmag ? Reference for Hmag (3)
259-263 F5.2 mag Kmag [8.27/17.5]? Ks or K magnitude
265-268 F4.2 mag e_Kmag [0.01/0.1]? Error in Kmag
270-275 A6 --- r_Kmag ? Reference for Kmag (3)
277-308 A32 --- selection Selection criteria satisfied by candidate (4)
310-313 F4.2 arcsec separation [0.58/4.15]? Angular separation from nearest
known young star within 5"
315-333 I19 --- compGaia ? Gaia DR2 source name of nearest known young
star within 5"
--------------------------------------------------------------------------------
Note (1): Based on coordinates from Data Release 10 of the UKIDSS Galactic
Clusters Survey for stars with Ks>10 from 2MASS.
Note (2): References as follows
2MASS = 2MASS Point Source Catalog;
UKIDSS = UKIDSS DR10 Catalog;
Gaia = Gaia DR2;
Note (3): References as follows
2MASS = 2MASS Point Source Catalog;
UKIDSS = UKIDSS Data Release 10;
ISPI = our ISPI photometry (Sec 3.3);
VHS = VHS Data Release 5.
Note (4): Criteria as follows:
G/ip/zp/yp/Z/Y/H/[3.6]/[4.5] = CMDs from Figure 5;
pi = parallax/proper motions from Gaia DR2;
irac = proper motions from IRAC.
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Byte-by-byte Description of file: table5.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 14 A14 --- Tel Telescope used
16-26 A11 --- Inst Instrument used
28- 43 A16 --- Disp Disperser
45- 48 F4.2 s Aper [0.4/1.1] Aperture (second slit)
50- 58 A9 um Filt Wavelength coverage
60- 64 A5 --- R Resolution
66- 67 I2 --- Ntarget [4/96] Number of targets observed
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table6.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 24 A24 --- 2MASS 2MASS source name (1)
26- 49 A24 --- UGCS UGCS source name
51- 62 A12 --- SpType Spectral Type
64- 79 A16 --- Inst Instrument
81- 84 I4 yr Obs.Y [2004/2019] Observation year
86- 88 A3 "month" Obs.M Observation month
90- 91 I2 d Obs.D Observation day
93- 96 I4 yr Obs2.Y [2005/2016]? Second observation year
98-100 A3 "month" Obs2.M ? Second observation month
102-103 I2 d Obs2.D ? Second observation day
105-106 A2 --- Young Young?; Yes or No
108 A1 --- OphMem Adopted Member of Oph?; Yes or No
--------------------------------------------------------------------------------
Note (1): Identifications from the 2MASS Point Source Catalog when available.
Otherwise, they based on coordinates from data release 10 of the
UKIDSS Galactic Clusters Survey.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: refs.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- Ref [1/55] Reference code
4- 27 A24 --- Autor Main autor of the reference
29- 47 A19 --- BIB BIBcode
49- 64 A16 --- Cat Catalog or comment
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fix [CDS], 01-Sep-2020