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J/A+A/353/1044      ROSAT obs. of T Tauri stars in MBM 12    (Hearty+, 2000)

ROSAT PSPC observations of T Tauri stars in MBM 12 Hearty T., Neuhaeuser R., Stelzer B., Fernandez M., Alcala J.M., Covino E., Hambaryan V. <Astron. Astrophys. 353, 1044 (2000)> =2000A&A...353.1044H
ADC_Keywords: Stars, pre-main sequence ; X-ray sources ; Equivalent widths Mission_Name: ROSAT Keywords: stars: formation - ISM: clouds Description: We present the ROSAT PSPC pointed and ROSAT All-Sky Survey (RASS, Cat. IX/10) observations and the results of our low and high spectral resolution optical follow-up observations of the T Tauri stars (TTS) and X-ray selected T Tauri star candidates in the region of the high galactic latitude dark cloud MBM 12 (L1453-L1454, L1457, L1458). Table 4 lists all of the X-ray detected sources in the direction of the molecular cloud MBM12 along with relevant X-ray and optical data. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table4.dat 145 80 ROSAT detected X-ray sources in the direction table4.tex 177 136 LaTeX version
See also: IX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999) IX/11 : ROSAT PSPC Source Catalog (Voges+ 1994) Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Seq Sequential number of the X-ray source (1) 3 A1 --- m_Seq Multiplicity index when several possible optical counterparts 5- 8 A4 --- Survey "RASS" (ROSAT All Sky Survey) or "RPOS" (Pointed Observation sources) 10- 23 A14 --- Name Name (2) 27- 28 I2 h RAh X-ray right ascension (J2000) 30- 31 I2 min RAm X-ray right ascension (J2000) 33- 36 F4.1 s RAs X-ray right ascension (J2000) 39 A1 --- DE- X-ray declination sign (J2000) 40- 41 I2 deg DEd X-ray declination (J2000) 43- 44 I2 arcmin DEm X-ray declination (J2000) 46- 47 I2 arcsec DEs X-ray declination (J2000) 49- 54 F6.1 --- ML Maximum Likelihood for Existence 56- 61 F6.4 --- e_ML rms uncertainty on ML 63- 68 F6.4 ct/s CountRate X-ray count rate in the 0.1-2.0 keV band 70- 74 F5.2 --- HR1 X-ray hardness ratio 1 76- 79 F4.2 --- e_HR1 rms uncertainty on HR1 81- 85 F5.2 --- HR2 ? X-ray hardness ratio 2 87- 90 F4.2 --- e_HR2 ? rms uncertainty on HR2 93- 96 F4.1 mag Vmag ? Optical counterpart visual magnitude 97 A1 --- n_Vmag [:] Note on Vmag (3) 100-104 F5.2 --- log(fx/fv) ? X-ray to optical flux ratio 106-110 A5 --- SpT Optical counterpart spectral type 113-118 F6.2 0.1nm W(Ha) ? Hα equivalent width 119 A1 --- n_W(Ha) [f] f: filled 120-123 F4.2 0.1nm W(Li) ? Lithium equivalent width 125-144 A20 --- Comments Comments on individual sources
Note (1): There are 49 X-ray sources in the ROSAT pointed observation and 28 X-ray sources in the RASS. Note (2): Name of the possible optical counterpart or ROSAT source name. S18 object is labelled EM* StHA 18 in Simbad, from Stephenson's list (1986ApJ...300..779S) Note (3): Those magnitudes marked with a ":" are estimated from the digital sky survey.
Acknowledgements: Thomas J. Hearty
(End) Patricia Bauer [CDS] 27-Jan-2000
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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