Access to Astronomical Catalogues

← Click to display the menu
J/ApJ/625/633    Chandra sources in B1600+434 and B1608+656 fields  (Dai+, 2005)

Chandra observations of the gravitational lenses B1600+434 and B1608+656. Dai X., Kochanek C.S. <Astrophys. J., 625, 633-642 (2005)> =2005ApJ...625..633D
ADC_Keywords: Gravitational lensing ; Photometry, SDSS Keywords: gravitational lensing Abstract: We observed B1600+434 and B1608+656 with Chandra ACIS, detecting both quasar images in B1600+434 and three of four images in B1608+656. We also detected 157 serendipitous X-ray sources in the two Chandra fields and identified the brighter optical counterparts using the Sloan Digital Sky Survey and Palomar Digital Sky Survey. Description: The data used in this paper are from the 2000 and 2002 Chandra observations of the globular cluster 47 Tuc. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table4.dat 122 75 Serendipitous sources detected in B1600+434 field table5.dat 122 82 Serendipitous sources detected in B1608+656 field
Byte-by-byte Description of file: table4.dat table5.dat
Bytes Format Units Label Explanations
1- 3 A3 --- --- [CXO] 5- 20 A16 --- CXO Chandra identification 22- 30 F9.5 deg RAdeg Right Ascension in decimal degrees (J2000) 32- 40 F9.6 deg DEdeg Declination in decimal degrees (J2000) 42- 44 F3.1 arcsec e_RAdeg Error in RAdeg 46- 48 F3.1 arcsec e_DEdeg Error in DEdeg 50- 52 I3 ct NCts Net counts 54- 55 I2 ct e_NCts Uncertainty in NCts 57- 61 F5.1 --- S/N Signal-to-noise ratio 63- 71 F9.5 deg ORAdeg ? Optical counterpart Right Ascension in decimal degrees (J2000) 73- 81 F9.6 deg ODEdeg ? Optical counterpart Declination in decimal degrees (J2000) 83- 85 F3.1 arcsec D(O-X) ? Angular distance between X-ray source and optical counterpart 87- 93 F7.4 mag r'mag ? SDSS r' band magnitude (Cat. II/259) 95-122 A28 --- SDSSf SDSS flags on target
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 23-Nov-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

catalogue service

© UDS/CNRS

Contact