Access to Astronomical Catalogues

← Click to display the menu
II/289              JKH photometry in LDN 1688            (Wilking+, 2008)

Star Formation in the rho Ophiuchi Molecular Cloud. Wilking B.A., Gagne M., Allen L.E. <Astron. Soc. Pac. Monograph Publications, 5, 351-380 (2008)>
ADC_Keywords: Molecular clouds ; Photometry, infrared ; Cross identifications Abstract: A review of star formation in the Rho Ophiuchi molecular complex is presented, with particular emphasis on studies of the main cloud, L1688, since 1991. Recent photometric and parallax measurements of stars in the Upper Scorpius subgroup of the Sco-Cen OB association suggest a distance for the cloud between 120 and 140 parsecs. Star formation is ongoing in the dense cores of L1688 with a median age for young stellar objects of 0.3Myr. The surface population appears to have a median age of 2-5Myr and merges with low mass stars in the Upper Scorpius subgroup. Making use of the most recent X-ray and infrared photometric surveys and spectroscopic surveys of L1688, we compile a list of over 300 association members with counterparts in the 2MASS catalog. Membership criteria, such as lithium absorption, X-ray emission, and infrared excess, cover the full range of evolutionary states for young stellar objects. Spectral energy distributions are classified for many association members using infrared photometry obtained from the Spitzer Space Telescope. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 268 316 LDN 1688 cloud members refs.dat 88 31 References
See also: J/ApJ/438/813 : Stellar population in ρ Oph cloud core (Strom+, 1995) J/A+A/372/173 : ISOCAM observations of the rho Ophiuchi cloud (Bontemps+, 2001) J/ApJ/566/993 : rho Ophiuchus (LDN 1688) cluster NICMOS imaging (Allen+, 2002) J/ApJ/613/393 : X-ray and radio sources in ρ Oph Core A (Gagne+, 2004) J/AJ/130/1733 : Optical spectroscopy of ρ Oph stars (Wilking+, 2005) J/AJ/131/3016 : Low-mass objects in Upper Scorpius (Slesnick+, 2006) J/A+A/452/245 : Near-IR photometry of PMS stars in rho Oph (Natta+, 2006) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 2 I2 h RAh Right Ascension J2000 (hours) 4- 5 I2 min RAm Right Ascension J2000 (minutes) 7- 11 F5.2 s RAs Right Ascension J2000 (seconds) 13 A1 --- DE- Declination J2000 (sign) 14- 15 I2 deg DEd Declination J2000 (degrees) 17- 18 I2 arcmin DEm Declination J2000 (minutes) 20- 24 F5.2 arcsec DEs Declination J2000 (seconds) 26- 30 F5.2 mag Jmag 2MASS J magnitude 32- 36 F5.2 mag e_Jmag ?=- rms uncertainty on Jmag (1) 38- 42 F5.2 mag Hmag 2MASS H magnitude 44- 48 F5.2 mag e_Hmag ?=- rms uncertainty on Hmag (1) 50- 54 F5.2 mag Kmag 2MASS K magnitude 56- 60 F5.2 mag e_Kmag rms uncertainty on Kmag (1) 62- 64 A3 --- Qflg 2MASS Quality flag 67- 68 I2 --- SR ? Struve & Rudkjobing (1949ApJ...109...92S), Em* SR NN in Simbad 69 A1 --- m_SR [NS] Multiplicity index on SR 71- 74 I4 --- WSB ? Wilking, Schwartz & Blackwell (1987AJ.....94..106W) 76- 79 I4 --- VSSG ? Vrba et al. (1975ApJ...197...77V) 81- 83 I3 --- [GY92] ? Greene & Young (1992ApJ...395..516G) 84 A1 --- m_[GY92] [AB] Multiplicity index on [GY92] 86- 89 A4 --- HYDRA Wilking et al. (2005, Cat. J/AJ/130/1733), [WMR2005] N-NN in Simbad 92- 94 I3 --- ISO ? Bontemps et al. (2001, Cat. J/A+A/372/173) 96- 99 I4 --- IRAC ? Allen et al. (2008, in prep.) 101-119 A19 --- Other Other designations (2) 121-142 A22 --- Xray1 Primary X-ray identification (3) 144-165 A22 --- Xray2 Secondary X-ray identification (3) 170 A1 --- SED [123F] IRAC SED class (4) 173-175 A3 --- IR-SI 3.6-24 micron spectral index class (5) 177-195 A19 --- O-SpType Optical spectral type (references in refs.dat file) 197-229 A33 --- IR-SpType Infrared spectral type (references in refs.dat file) 231-260 A30 --- Memb Criteria for association membership (6) 262-263 A2 --- Bin [SB T] Type of object if companions (7) 265-268 A4 --- r_Bin References for Bin, in refs.dat file
Note (1): --- (no photometric error) indicates poor quality photometry. Note (2): Other designations from Dolidze & Arakaylen (1959AZh....36..444D), Chini (1981A&A....99..346C), Bouvier & Appenzeller (1992A&AS...92..481B), Martin et al. (1998MNRAS.300..733M), Grasdalen, Strom & Strom (1973ApJ...184L..53G), Vrba et al. (1976AJ.....81..958V), Elias (1978ApJ...224..453E), Wilking & Lada (1983ApJ...274..698W), Wilking, Lada & Young (1989ApJ...340..823W), Comeron et al. (1993ApJ...416..185C), Strom, Kepner & Strom (1995, Cat. J/ApJ/438/813), Allen (2002ApJ...566..993A), or Leous et al. (1991ApJ...379..683L). Note (3): X-ray identifications are from: Montmerle et al. (1983ApJ...269..182M), ROX NN, ROX CNN; Casanova et al. (1995ApJ...439..752C), ROXR1 NN; Grosso et al. (2000A&A...359..113G), ROXRA NN, ROXRF NN; Martin et al. (1998MNRAS.300..733M), RX JHHMM.m+DDMMa; Kamata et al. (1997PASJ...49..461K), ROXA NNA, ROXA CN; Imanishi et al. (2001ApJ...557..747I), [IKT2001] NN; Gagne, Skinner & Daniel (2004, Cat. J/ApJ/613/393), GDS JHHMMSS.s+DDMMSS; Ozawa et al. (2005, Cat. J/A+A/429/963), ROXN NN; N. Grosso or S. Sciortino (2005, private communication). Note (4): IRAC SED code as follows: 1 = Class I source 2 = Class II source 3 = Class III source F = Flat-spectrum source Note (5): Spectral index code as follows: I = Class I source with a spectral index from 3.6 to 24um of alpha>0.3 II = Class II source with -1.6<alpha←0.3 III = Class III source with alpha←1.6 F = Flat-spectrum sources with -0.3<alpha<0.3 Note (6): Membership based on detected X-ray emission (x), strong H-alpha emission (ha), lithium absorption (li), location above ZAMS in H-R diagram (ext), or infrared excess in Spitzer IRAC band 2 (B2ex), band 4 (B4ex), or in MIPS (Mex). Note (7): Type of companions with separations <10" (1300 AU) is: SB = Spectroscopic binary B = binary T = triple
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1- 5 A5 --- Ref Reference code 7- 25 A19 --- BibCode BibCode 27- 54 A28 --- Aut Author's name 57- 88 A32 --- Com Comments
Acknowledgements: Marc Gagne, MGagne(at)
(End) Patricia Vannier [CDS] 01-Dec-2008
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service