Access to Astronomical Catalogues

← Click to display the menu
J/A+A/504/461       YSOs in L1630N and L1641                 (Fang+, 2009)

Star and protoplanetary disk properties in Orion's suburbs. Fang M., Van Boekel R., Wang W., Carmona A., Sicilia-Aguilar A., Henning Th. <Astron. Astrophys., 504, 461-489 (2009)> =2009A&A...504..461F
ADC_Keywords: Molecular clouds ; Stars, pre-main sequence ; YSOs ; Photometry, infrared ; Equivalent widths Keywords: surveys - stars: pre-main sequence - planetary systems: protoplanetary disks - accretion, accretion disks Abstract: Knowledge of the evolution of circumstellar accretion disks is pivotal to our understanding of star and planet formation; and yet despite intensive theoretical and observational studies, the disk dissipation process is not well understood. Infrared observations of large numbers of young stars, as performed by the Spitzer Space Telescope, may advance our knowledge of this inherently complex process. While infrared data reveal the evolutionary status of the disk, they hold little information on the properties of the central star and the accretion characteristics. Existing 2MASS and Spitzer archive data of the Lynds 1630N and 1641 clouds in the Orion GMC provide disk properties of a large number of young stars. We wish to complement these data with optical data that provide the physical stellar parameters and accretion characteristics. Description: We performed a large optical spectroscopic and photometric survey of the aforementioned clouds. Spectral types, as well as accretion and outflow characteristics, are derived from our VLT/VIMOS spectra. Optical SDSS and CAHA/LAICA imaging was combined with 2MASS, Spitzer IRAC, and MIPS imaging to obtain spectral energy distributions from 0.4 to 24um. Reddened model atmospheres were fitted to the optical/NIR photometric data, keeping Teff fixed at the spectroscopic value. Mass and age estimates of individual objects were made through placement in the HR diagram and comparison to several sets of pre-main sequence evolutionary tracks. ************************************************************************** * * * Sorry, but the author(s) never supplied the tabular material * * (tables 8-9, 12-15) as announced in the paper * * * ************************************************************************** File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table4.dat 181 132 Parameters for YSOs in L1630N table5.dat 181 267 Parameters for YSOs in L1641 table6.dat 169 132 Photometric magnitudes of YSOs in L1630N table7.dat 169 267 Photometric magnitudes of YSOs in L1641 table10.dat 152 38 Equivalent widths of emission lines on the optical spectra for YSOs in L1630N table11.dat 152 70 Equivalent widths of emission lines on the optical spectra for YSOs in L1641 table16.dat 169 47 Photometric magnitudes for transition disk object candidates
See also: J/A+A/489/1409 : Infrared photometry and spectroscopy in L1641N (Galfalk+ 2008) Byte-by-byte Description of file: table[45].dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Sequential number 5- 6 I2 h RAh Right ascension (J2000) 8- 9 I2 min RAm Right ascension (J2000) 11- 15 F5.2 s RAs Right ascension (J2000) 17 A1 --- DE- Declination sign (J2000) 18- 19 I2 deg DEd Declination (J2000) 21- 22 I2 arcmin DEm Declination (J2000) 24- 27 F4.1 arcsec DEs Declination (J2000) 29- 32 A4 --- SpT1 Litterature spectral type 33 A1 --- r_SpT1 [abcd] Reference for SpType1 (1) 35- 38 A4 --- SpT2 Litterature spectral type 39 A1 --- r_SpT2 [abcd] Reference for SpType2 (1) 41- 44 A4 --- SpT3 Litterature spectral type 45 A1 --- r_SpT3 [abc] Reference for SpType3 (1) 47- 50 A4 --- SpT Adopted spectral type 52- 57 F6.3 solLum Lbol Bolometric luminosity (2) 59- 64 F6.1 0.1nm EWHa ?=- Hα equivalent width 65 A1 --- r_EWHa [abcd] Reference for EWHa (1) 67- 72 F6.1 0.1nm EWHa2 ? Hα equivalent width 73 A1 --- r_EWHa2 [abcd] Reference for EWHa2 (1) 75- 79 F5.1 0.1nm EWHa3 ? Hα equivalent width 80 A1 --- r_EWHa3 [c] Reference for EWHa3 (1) 82- 84 F3.1 0.1nm EWLi ?=- Lithium equivalent width 85 A1 --- r_EWLi [abc] Reference for EWLi (1) 87- 89 F3.1 0.1nm EWLi2 ? Lithium equivalent width 90 A1 --- r_EWLi2 [abc] Reference for EWLi2 (1) 92- 95 A4 --- Type TTS classification (Weak or Classical TTau) based on the criteria in Appendix A 97-100 F4.1 mag AV Absorption in V band 102-104 A3 --- Pop [yes no] aggregate/cluster population (yes) or distributed population (no) 106-110 F5.2 --- alpha ?=- Spectral index α(3.6-8.0um) 112-115 F4.2 solMass Mass ?=- Stellar mass (3) 117-120 F4.2 solMass E_Mass ? Error on Mass (upper limit) 122-125 F4.2 solMass e_Mass ? Error on Mass (lower limit) 127-132 F6.2 Myr Age ?=- Stellar age (3) 134-138 F5.2 Myr E_Age ? Error on Age (upper limit) 140-144 F5.2 Myr e_Age ? Error on Age (lower limit) 146-160 A15 --- Disk Disk properties 162-167 F6.2 [solMass/yr] accRate1 ?=- Accretion rate log(dMacc/dt) estimated with Hα emission line luminosity 169-174 F6.2 [solMass/yr] accRate2 ?=- Accretion rate log(dMacc/dt) estimated with Hβ emission line luminosity 176-181 F6.2 [solMass/yr] accRate3 ?=- Accretion rate log(dMacc/dt) estimated with HeI(5876Å) emission line luminosity
Note (1): References as follows: a = values estimated from our VIMOS spectra b = values from Flaherty & Muzerolle (2008AJ....135..966F) c = values from Galfalk & Olofsson (2008, Cat. J/A+A/489/1409) d = values from Allen (1995, Ph.D. Thesis, Department of Physics and Astronomy, University of Massachusetts, Amherst) Note (2): Stellar bolometric luminosity derived from optical SED fitting (see Sect. 3.3.2). Note (3): using PMS evolutionary tracks from Dotter et al. (2008ApJS..178...89D)
Byte-by-byte Description of file: table[67].dat table16.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Sequential number 5- 6 I2 h RAh Right ascension (J2000) 8- 9 I2 min RAm Right ascension (J2000) 11- 15 F5.2 s RAs Right ascension (J2000) 17 A1 --- DE- Declination sign (J2000) 18- 19 I2 deg DEd Declination (J2000) 21- 22 I2 arcmin DEm Declination (J2000) 24- 27 F4.1 arcsec DEs Declination (J2000) 29- 33 F5.2 mag u'mag ?=- SDSS u' magnitude 35- 38 F4.2 mag e_u'mag ? rms uncertainty on u'mag 40- 44 F5.2 mag g'mag ?=- SDSS g' magnitude 46- 49 F4.2 mag e_g'mag ? rms uncertainty on g'mag 51- 55 F5.2 mag r'mag ?=- SDSS r' magnitude 57- 60 F4.2 mag e_r'mag ? rms uncertainty on r'mag 62- 66 F5.2 mag i'mag ?=- SDSS i' magnitude 68- 71 F4.2 mag e_i'mag ? rms uncertainty on i'mag 73- 77 F5.2 mag z'mag ?=- SDSS z' magnitude 79- 82 F4.2 mag e_z'mag ? rms uncertainty on z'mag 84- 88 F5.2 mag Jmag ?=0.01 2MASS J magnitude 90- 93 F4.2 mag e_Jmag ?=0.01 rms uncertainty on Jmag 95- 99 F5.2 mag Hmag ?=0.01 2MASS H magnitude 101-104 F4.2 mag e_Hmag ?=0.01 rms uncertainty on Hmag 106-110 F5.2 mag Ksmag ?=0.01 2MASS Ks magnitude 112-115 F4.2 mag e_Ksmag ?=0.01 rms uncertainty on Ksmag 117-121 F5.2 mag 3.6mag ?=- IRAC 3.6um magnitude 123-126 F4.2 mag e_3.6mag ? rms uncertainty on 3.6mag 128-132 F5.2 mag 4.5mag ?=- IRAC 4.5um magnitude 134-137 F4.2 mag e_4.5mag ? rms uncertainty on 4.5mag 139-143 F5.2 mag 5.8mag ?=- IRAC 5.8um magnitude 145-148 F4.2 mag e_5.8mag ? rms uncertainty on 5.8mag 150-154 F5.2 mag 8.0mag ?=- IRAC 8.0um magnitude 156-159 F4.2 mag e_8.0mag ? rms uncertainty on 8.0mag 161-164 F4.2 mag 24mag ?=- MIPS 24um magnitude 166-169 F4.2 mag e_24mag ? rms uncertainty on 24mag
Byte-by-byte Description of file: table1[01].dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Sequential number 5- 6 I2 h RAh Right ascension (J2000) 8- 9 I2 min RAm Right ascension (J2000) 11- 15 F5.2 s RAs Right ascension (J2000) 17 A1 --- DE- Declination sign (J2000) 18- 19 I2 deg DEd Declination (J2000) 21- 22 I2 arcmin DEm Declination (J2000) 24- 27 F4.1 arcsec DEs Declination (J2000) 29- 34 F6.1 0.1nm EW([OI]1) ?=- [OI] (5577Å) equivalent width 36- 40 F5.2 0.1nm e_EW([OI]1) ? rms uncertainty on EW([OI]) 42- 47 F6.1 0.1nm EW([OI]2) ?=- [OI] (6300Å) equivalent width 49- 53 F5.2 0.1nm e_EW([OI]2) ? rms uncertainty on EW([OI]) 55- 60 F6.1 0.1nm EW([OI]3) ?=- [OI] (3663Å) equivalent width 62- 66 F5.2 0.1nm e_EW([OI]3) ? rms uncertainty on EW([OI]) 68- 71 F4.1 0.1nm EW([NII]1) ?=- [NII] (6548Å) equivalent width 73- 76 F4.2 0.1nm e_EW([NII]1) ? rms uncertainty on EW([NII]) 78- 82 F5.1 0.1nm EW([NII]2) ?=- [NII] (6583Å) equivalent width 84- 87 F4.2 0.1nm e_EW([NII]2) ? rms uncertainty on EW([NII]) 89- 92 F4.1 0.1nm EW([HeI]) ?=- [HeI] (6678Å) equivalent width 94- 97 F4.2 0.1nm e_EW([HeI]) ? rms uncertainty on EW([HeI]) 99-103 F5.1 0.1nm EW([SII]1) ?=- [SII] (6716Å) equivalent width 105-108 F4.2 0.1nm e_EW([SII]1) ? rms uncertainty on EW([SII]) 110-114 F5.1 0.1nm EW([SII]2) ?=- [SII] (6731Å) equivalent width 116-119 F4.2 0.1nm e_EW([SII]2) ? rms uncertainty on EW([SII]) 121-125 F5.1 0.1nm EW([CaII]1) ?=- [CaII] (8498Å) equivalent width 127-130 F4.2 0.1nm e_EW([CaII]1) ? rms uncertainty on EW([CaII]) 132-136 F5.1 0.1nm EW([CaII]2) ?=- [CaII] (8542Å) equivalent width 138-141 F4.2 0.1nm e_EW([CaII]2) ? rms uncertainty on EW([CaII]) 143-147 F5.1 0.1nm EW([CaII]3) ?=- [CaII] (8662Å) equivalent width 149-152 F4.2 0.1nm e_EW([CaII]3) ? rms uncertainty on EW([CaII])
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 05-Jan-2010
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

© UDS/CNRS

Contact