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J/A+A/468/353       XMM-Newton Extended Survey of Taurus         (Guedel+, 2007)

The XMM-Newton Extended Survey of the Taurus Molecular Cloud. Guedel M., Briggs K.R., Arzner K., Audard M., Bouvier J., Feigelson E.D., Franciosini E., Glauser A., Grosso N., Micela G., Monin J.-L., Montmerle T., Padgett D.L., Palla F., Pillitteri I., Rebull L., Scelsi L., Silva B., Skinner S.L., Stelzer B., Telleschi A. <Astron. Astrophys. 468, 353 (2007)> =2007A&A...468..353G
ADC_Keywords: Surveys ; X-ray sources ; Associations, stellar ; Stars, pre-main sequence Keywords: stars: formation - stars: pre-main sequence - X-rays: stars - gravitational waves Abstract: The XMM-Newton Extended Survey of the Taurus Molecular Cloud (XEST) surveys the most populated ∼5 square degrees of the Taurus Molecular Cloud, using the XMM-Newton X-ray observatory to study the thermal structure, variability, and long-term evolution of hot plasma, to investigate the magnetic dynamo, and to search for new potential members of the association. We present overall correlations with fundamental stellar parameters that were derived from the previous literature. The present overview paper introduces the project and provides the basic results from the X-ray analysis of all sources detected in the XEST survey. Comprehensive tables summarize the stellar properties of all targets surveyed. The survey goes deeper than previous X-ray surveys of Taurus by about an order of magnitude and for the first time systematically accesses very faint and strongly absorbed TMC objects. We find a detection rate of 85% and 98% for classical and weak-line T Tauri stars (CTTS resp. WTTS), and identify about half of the surveyed protostars and brown dwarfs. Overall, 136 out of 169 surveyed stellar systems are detected. We describe an X-ray luminosity vs. mass correlation, discuss the distribution of X-ray-to-bolometric luminosity ratios, and show evidence for lower X-ray luminosities in CTTS compared to WTTS. Description: The complete catalog of all X-ray sources (stellar and non-stellar) detected in the XEST fields is presented. The catalog provides X-ray coordinates, their uncertainties, X-ray count rates and uncertainties, and X-ray hardness ratios for 2347 detected X-ray sources. If two XEST fields overlap, the same sources may have been identified twice, with different XEST IDs assigned. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table14.dat 220 2347 Coordinates and count rates for 2347 X-ray sources
See also: J/A+A/325/647 : High-resolution spectra south of Taurus (Neuhaeuser+ 1997) J/A+AS/124/449 : Young stars south of Taurus-Auriga (Magazzu+ 1997) J/ApJS/101/117 : UBVRIJHKLMNQ photometry in Taurus-Auriga (Kenyon+ 1995) J/A+A/468/379 : XMM Optical Monitor Survey of TMC (Audard+, 2007) Byte-by-byte Description of file: table14.dat
Bytes Format Units Label Explanations
1- 4 I4 --- Seq Catalog number 6- 7 I2 --- XEST-fld XEST field number 8 A1 --- --- [-] 9- 11 I3 --- XEST-src XEST source number in field 13- 14 I2 h RAh Right ascension (J2000) 16- 17 I2 min RAm Right ascension (J2000) 19- 23 F5.2 s RAs Right ascension (J2000) 25 A1 --- DE- Declination sign 26- 27 I2 deg DEd Declination (J2000) 29- 30 I2 arcmin DEm Declination (J2000) 32- 35 F4.1 arcsec DEs Declination (J2000) 37- 45 F9.6 deg RAdeg Right ascension in decimal degrees (J2000) 47- 56 F10.6 deg DEdeg Declination in decimal degrees (J2000) 58- 61 F4.2 arcsec ePos Positional Error (1 sigma) 63- 70 F8.1 --- MLF Maximum likelihood in full band (0.5-7.3keV) 72- 77 I6 ct ctF Number of counts in full band (0.5-7.3keV) 79- 84 I6 s ExptF PN-equivalent full band (0.5-7.3keV) exposure time 86- 91 F6.4 ct/s CRF PN-equivalent full band (0.5-7.3keV) source count rate 93- 98 F6.4 ct/s e_CRF Error of full band source count rate 100-107 F8.1 --- MLS Maximum likelihood in soft band (0.5-2.0keV) 109-114 I6 ct ctS Number of counts in soft band (0.5-2.0keV) 116-121 I6 s ExptS PN-equivalent soft band (0.5-2.0keV) exposure time 123-128 F6.4 ct/s CRS PN-equivalent soft band (0.5-2.0keV) source count rate 130-135 F6.4 ct/s e_CRS Error of soft band source count rate 137-144 F8.1 --- MLH Maximum likelihood in hard band (2.0-7.3keV) 146-151 I6 ct ctH Number of counts in hard band (2.0-7.3keV) 153-158 I6 s ExptH PN-equivalent ard band (2.0-7.3keV) exposure time 160-165 F6.4 ct/s CRH PN-equivalent hard band (2.0-7.3keV) source count rate 167-172 F6.4 ct/s e_CRH Error of hard band source count rate 174-179 F6.3 --- HR Hardness (CRH-CRS)/(CRF) (1) 181-186 F6.3 --- HRupp Hardness upper limit (1 sigma) 188-193 F6.3 --- HRlow Hardness lower limit (1 sigma) 195-220 A26 --- Com Comments
Note (1): If object is not detected in soft (hard) band, then HR is upper (lower) limit. If object is detected only in full band, then HR = 0.
Acknowledgements: Manuel Guedel, guedel(at)
(End) Manuel Guedel [PSI/ETHZ, Switzerland], Patricia Vannier [CDS] 21-May-2007
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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