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J/A+A/603/A81      Trumpler 14 and 16 in the Carina nebula      (Damiani+, 2017)

Gaia-ESO Survey: Global properties of clusters Trumpler 14 and 16 in the Carina nebula. Damiani F., Klutsch A., Jeffries R.D., Randich S., Prisinzano L., Maiz-Apellaniz J., Micela G., Kalari V., Frasca A., Zwitter T., Bonito R., Gilmore G., Flaccomio E., Francois P., Koposov S., Lanzafame A.C., Sacco G.G., Bayo A., Carraro G., Casey A.R., Alfaro E.J., Costado M.T., Donati P., Franciosini E., Hourihane A., Jofre P., Lardo C., Lewis J., Magrini L., Monaco L., Morbidelli L., Worley C.C., Vink J.S., Zaggia S. <Astron. Astrophys. 603, A81 (2017)> =2017A&A...603A..81D (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, open ; Radial velocities ; Rotational velocities ; Spectral types ; Spectroscopy ; Stars, early-type ; Stars, pre-main sequence ; X-ray sources Keywords: stars: pre-main sequence - stars: early-type - open clusters and associations: individual: Trumpler 14 - open clusters and associations: individual: Trumpler 16 - open clusters and associations: individual: Carina nebula Abstract: We present the first extensive spectroscopic study of the global population in star clusters Trumpler 16, Trumpler 14, and Collinder 232 in the Carina nebula, using data from the Gaia-ESO Survey, down to solar-mass stars. In addition to the standard homogeneous survey data reduction, a special processing was applied here because of the bright nebulosity surrounding Carina stars. We find about 400 good candidate members ranging from OB types down to slightly subsolar masses. About 100 heavily reddened early-type Carina members found here were previously unrecognized or poorly classified, including two candidate O stars and several candidate Herbig Ae/Be stars. Their large brightness makes them useful tracers of the obscured Carina population. The spectroscopically derived temperatures for nearly 300 low-mass members enables the inference of individual extinction values and the study of the relative placement of stars along the line of sight. We find a complex spatial structure with definite clustering of low-mass members around the most massive stars and spatially variable extinction. By combining the new data with existing X-ray data, we obtain a more complete picture of the three-dimensional spatial structure of the Carina clusters and of their connection to bright and dark nebulosity and UV sources. The identification of tens of background giants also enables us to determine the total optical depth of the Carina nebula along many sightlines. We are also able to put constraints on the star formation history of the region with Trumpler 14 stars found to be systematically younger than stars in other subclusters. We find a large percentage of fast-rotating stars among Carina solar-mass members, which provide new constraints on the rotational evolution of pre-main-sequence stars in this mass range. Description: For all Carina cluster members found from Gaia-ESO Survey optical spectra, we report identifications with other catalogs, and properties derived from the optical spectra: radial and rotational velocity, effective temperature and gravity index, optical extinction, lithium equivalent width, H-alpha emission, and binarity. Also given is a catalog of stars classified as early-type on the basis of the Gaia-ESO spectra. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 87 298 Carina member identifications table2.dat 79 298 Carina member properties table7.dat 105 110 Carina early-type stars
See also: J/A+A/490/1055 : Chandra survey of Tr16 low-mass stars (Albacete-Colombo+ 2008) J/ApJS/194/2 : Chandra Carina Complex Project (CCCP) catalog (Broos+, 2011) J/AJ/143/41 : UBVIc CCD photometry of star clusters Tr14 & Tr16 (Hur+, 2012) J/A+A/566/A50 : Classification of stellar spectra 644-681nm (Damiani+, 2014) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 4 I4 --- [HSB2012] Identifier in Hur et al. (2012, Cat. J/AJ/143/41) 6- 23 A18 --- CXOGNC ? Identifier in Broos et al. (2011, Cat. J/ApJS/194/2) 25- 28 I4 --- [ADM2008] ? Identifier in Albacete-Colombo et al. (2008, Cat. J/A+A/490/1055) 30- 47 A18 --- YSO Identifier in Zeidler et al. (2016, Cat. J/A+A/585/A49) 49- 50 I2 h RAh Right Ascension (J2000) 52- 53 I2 min RAm Right Ascension (J2000) 55- 59 F5.2 s RAs Right Ascension (J2000) 61 A1 --- DE- Declination sign (J2000) 62- 63 I2 deg DEd Declination sign (J2000) 65- 66 I2 arcmin DEm Declination sign (J2000) 68- 71 F4.1 arcsec DEs Declination sign (J2000) 73- 77 F5.2 mag Vmag V magnitude from Hur et al. (2012, Cat. J/AJ/143/41) 79- 82 F4.2 mag B-V ? B-V color from Hur et al. (2012, Cat. J/AJ/143/41) 84- 87 F4.2 mag V-I V-I color from Hur et al. (2012, Cat. J/AJ/143/41)
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 4 I4 --- [HSB2012] Identifier in Hur et al. (2012, Cat. J/AJ/143/41) 6- 10 F5.1 --- S/N Signal/noise ratio in optical spectrum 12- 16 F5.1 km/s HRV ? Stellar heliocentric radial velocity 18- 21 F4.1 km/s e_HRV ? Error on HRV 23- 27 F5.1 km/s vsini ? Rotational velocity vsini 29- 32 F4.1 km/s e_vsini ? Error on vsini 34- 37 I4 K Teff ? Effective temperature 39- 42 I4 K e_Teff ? Error on Teff 44- 47 F4.2 mag A(V) ? Optical extinction 49- 53 F5.1 0.1pm EWLi ? Lithium 670.7nm equivalent width 55- 58 F4.1 0.1pm e_EWLi ? Error on EWLi 60- 64 F5.3 --- gamma Gravity index from Damiani et al. (2014, Cat. J/A+A/566/A50) 66- 70 F5.3 --- e_gamma Error on gamma 72- 75 F4.2 [yr] logAge ? Isochronal age (log) 77 A1 --- Halpha [Y/N] Classical T Tauri star candidate 79 A1 --- SB2 [Y/N] SB2 binary
Byte-by-byte Description of file: table7.dat
Bytes Format Units Label Explanations
1- 16 A16 --- 2MASS Identifier from 2MASS 18- 45 A28 --- SIMBAD Identifier from SIMBAD 47- 48 I2 h RAh Right Ascension (J2000) 50- 51 I2 min RAm Right Ascension (J2000) 53- 57 F5.2 s RAs Right Ascension (J2000) 59 A1 --- DE- Declination sign (J2000) 60- 61 I2 deg DEd Declination sign (J2000) 63- 64 I2 arcmin DEm Declination sign (J2000) 66- 69 F4.1 arcsec DEs Declination sign (J2000) 71- 75 F5.2 mag Vmag V magnitude from Hur et al. (2012, Cat. J/AJ/143/41) 77- 80 F4.2 mag B-V B-V color from Hur et al. (2012, Cat. J/AJ/143/41) 82- 85 F4.2 mag V-I V-I color from Hur et al. (2012, Cat. J/AJ/143/41) 87- 89 A3 --- SpType MK spectral type from SIMBAD 91-105 A15 --- Notes New spectral classification (1)
Note (1): Spectroscopic classification as follows: B type = main-sequence B-type stars O type = O-type stars B SG = candidate B supergiants near A0 = stars of late-B/early-A type HAeBe = Herbig Ae/Be stars
Acknowledgements: Acknowledgements: Francesco Damiani, damiani(at)astropa.inaf.it
(End) Francesco Damiani [INAF-OAPA, Italy], Patricia Vannier [CDS] 10-Apr-2017
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

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