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J/A+A/347/47   High galactic latitude RASS X-ray sources. II. (Beuermann+, 1999)

Identification of soft high galactic latitude RASS X-ray sources. II. Sources with PSPC count rate CR<0.5cts/s. Beuermann K., Thomas H.-C., Reinsch K., Schwope A.D., Truemper J., Voges W. <Astron. Astrophys. 347, 47 (1999)> =1999A&A...347...47B
ADC_Keywords: X-ray sources ; Cross identifications Keywords: stars: novae, cataclysmic variables - galaxies: actives - galaxies: nuclei - galaxies: quasars: general - galaxies: Seyfert - X-rays: general Abstract: We present a summary of spectroscopic identifications of bright soft high galactic latitude X-ray sources from the ROSAT All-Sky Survey with total PSPC count rates 0.11<CR<0.5cts/s and hardness ratios HR1<0. This study supplements the identification program of a complete sample of sources with CR≥0.5cts/s presented previously. Spectroscopic identifications are presented for 70 of 77 sources, 5 sources are identified by other means, and subsidiary information is given for 2 as yet unidentified sources. In practically all cases, a unique optical counterpart exists. As for the brighter fraction of the sample, the largest source classes are Seyfert 1 galaxies, magnetic cataclysmic variables, and hot white dwarfs. In the Galactic Pole caps at |b|>400, Seyfert galaxies dominate, whereas at intermediate latitudes galactic objects as magnetic cataclysmic variables and white dwarfs become relatively more frequent. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 95 77 Summary of optical identification program of new bright soft high-galactic-latitude RASS sources with HR1<0. notes.dat 79 51 Individual notes of table3.dat table3.tex 72 324 LaTeX version of table3
See also: IX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1996) J/A+A/335/467 : High galactic latitude RASS X-ray sources (Thomas+ 1998) Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 15 A15 --- Name J2000 X-ray position from the RASS BSC 16 A1 --- n_Name [X] X when source in RASS BSC 18- 19 I2 h RAh ? Optical counterpart right ascension (J2000) 21- 22 I2 min RAm ? Optical counterpart right ascension (J2000) 24- 27 F4.1 s RAs ? Optical counterpart right ascension (J2000) 29 A1 --- DE- Optical counterpart declination (J2000) 30- 31 I2 deg DEd ? Optical counterpart (J2000) 33- 34 I2 arcmin DEm ? Optical counterpart (J2000) 36- 37 I2 arcsec DEs ? Optical counterpart (J2000) 39- 42 F4.1 arcsec Sep ? Separation between optical and X-ray positions 44- 47 F4.2 --- r90 ? Separation in units of the 90% confidence radii according to Eq. 1 49- 53 F5.3 ct/s CR RASS BSC PSPC count rate CR 55- 56 I2 10-3ct/s e_CR rms uncertainty on CountRate 58- 62 F5.2 --- HR1 Hardness ratio HR1, 64- 65 I2 10-2 e_HR1 rms uncertainty on HR1 67- 70 A4 --- Class Classification 72- 75 A4 --- Type Type of the optical counterpart, 77- 81 F5.3 --- z ? Redshift if extragalactic 82 A1 --- u_z Uncertainty flag on z 84- 87 F4.1 mag Vmag ? Visual magnitude V. 89- 95 A7 --- Notes Notes (1)
Note (1): Notes as follows: 1 = Spectroscopic identification, this work 2 = WFC identification (Pye et al., 1995, Cat. J/MNRAS/274/1165, Mason et al., 1995, Cat. J/MNRAS/274/1194) 3 = Hamburg/RASS identification (Bade et al., 1998A&AS..127..145B) 4 = see also Grupe et al. (1998A&A...330...25G) 5 = Inferred identification from the Digitized Sky Survey 6 = Radio source 7 = Listed also by Veron-Cetty & Veron (1996, Cat. VII/188) 8 = Remarks to individual sources in notes.dat file Correction to Paper I: 160518.5+542101: For this source, the identification of Bade et al. (1998A&AS..127..145B) as an M-star has been cited in Paper I. That star, however, is 31" from the X-ray position and the more likely candidate is a 19 mag object at 5" separation which is also a radio source (White et al. 1997, Cat. VIII/51), suggesting a BL Lac identification. For the M-star, the implied ≃0.44 would also be quite atypical, while the fx/fo≃1.4 is typical of a BL Lac object. The USNO-A1.0 optical position (J2000) of the BL Lac candidate is 16:05:19.0+54:21:00, the radio position 16:05:19.1+54:21:00.
Byte-by-byte Description of file: notes.dat
Bytes Format Units Label Explanations
1- 15 A15 --- Name RASS name 17- 79 A63 --- Note Text of the note
Acknowledgements: K. Beuermann History: * 20-Jul-1999: from author * 26-Sep-2010: RASS names in notes.dat corrected to match the names of table3
(End) Francois Ochsenbein [CDS] 20-Jul-1999
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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