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J/A+A/439/433       RIJ photometry of stars around PSR B1718-19 (Janssen+, 2005)

Observations of the binary pulsar system PSR B1718-19. The role of tidal circularization. Janssen T., Van Kerkwijk M.H. <Astron. Astrophys. 439, 433 (2005)> =2005A&A...439..433J
ADC_Keywords: Pulsars ; Binaries, eclipsing ; Photometry, infrared Keywords: binaries: eclipsing - pulsars: individual (PSR B1718-19) - stellar dynamics Description: In our paper we present VLT-observations in R, I and J of the candidate companion of PSR B1718-19, and also make use of HST observations in F702W, previously presented in Van Kerkwijk et al., 2000ApJ...529..428V. We make available online our astrometry and photometry including error-bars. The field-size is approximately 34x34 arcsec (F702W), 80x80 arcsec (R & I), and 89x89 arcsec (J). Objects: ---------------------------------------------------------- RA (2000) DE Designation(s) ---------------------------------------------------------- 17 21 01.5 -19 36 51 PSR B1718-19 = EQ J1721-1936 ---------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 97 2390 Positions and apparent magnitudes of the candidate companion of PSR B1718-19 and surrounding stars
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 4 I4 --- Seq Star label 7- 20 F14.10 deg RAdeg Right ascension (J2000) (1) 23- 36 F14.10 deg DEdeg Declination (J2000) (1) 39- 47 F9.3 mag Rmag ?=0.000 Apparent magnitude in R (657nm) (2) 49- 57 F9.3 mag e_Rmag ?=0.000 Sigma of apparent magnitude in R (3) 59- 67 F9.3 mag Imag ?=0.000 Apparent magnitude in I (768nm) (2) 69- 77 F9.3 mag e_Imag ?=0.000 Sigma of apparent magnitude in I (3) 79- 87 F9.3 mag Jmag ?=0.000 Apparent magnitude in J (1.25um) (2) 89- 97 F9.3 mag e_Jmag ?=0.000 Sigma of apparent magnitude in J (3)
Note (1): The uncertainty in the zero-point of the astrometry is 0.06arcsec (see Van Kerkwijk et al., 2000ApJ...529..428V). For this table only the HST/F702W-astrometry has been corrected for field distortion, using the standard correction of HSTPhot. For VLT/FORS-bands R & I the distortion is small (smaller than ∼0.15arcsec), as the astrometry and photometry is done on a subframe measuring 400x400 pixels (out of a total of 2048x2048 pixels). For VLT/ISAAC-band J the distortion is larger (amounting up to ∼0.3arcsec at the edges of the subframe). Consequently, the uncertainty in the astrometry is expected to be lowest in F702W, intermediate in R & I, and highest in J. The astrometry listed in this table has therefore been done in one of the filters F702W, I, R, or J (in that order) if a detection occurred in that filter. Note (2): Value 0.000 means no detection or cross-identification occurred in that filter. Note (3): The uncertainty in the photometric zero-point is 0.02 (J) or smaller than 0.03 (R & I). These uncertainties have not been added to the error-bars listed in this table.
Acknowledgements: T. Janssen, T.Janssen(at)phys.uu.nl References: Van Kerkwijk et al., Paper I 2000ApJ...529..428V
(End) Patricia Vannier [CDS] 05-Apr-2005
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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