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J/A+A/385/39        13 and 22cm radio flux from A3571        (Venturi+, 2002)

Radio emission from the A3571 cluster complex: The final stage of a cluster merger? Venturi T., Bardelli S., Zagaria M., Prandoni I., Morganti R. <Astron. Astrophys. 385, 39 (2002)> =2002A&A...385...39V
ADC_Keywords: Clusters, galaxy ; Galaxies, radio Keywords: radio continuum: galaxies - galaxies: clusters: general - galaxies: clusters: individual: A3571, A3572, A3575 Abstract: In this paper we report and discuss the results of a radio survey in the A3571 cluster complex, a structure located in the Shapley Concentration core, and formed by the three clusters A3571, A3572 and A3575. The survey was carried out simultaneously at 22cm and 13cm with the Australia Telescope Compact Array, and led to the detection of 124 radio sources at 22cm. The radio source counts in this region are in agreement with the background counts. Among the 36 radio sources with optical counterpart, six have a measured redshift that places them at the distance of the A3571 cluster complex, and nine radio sources have optical counterparts most likely members of this cluster complex. All of the radio galaxies emit at low power level, i.e. P22cm≤1022.6 W/Hz. A number of them are likely to be starburst galaxies. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 62 124 Source list and flux density values table4.dat 123 37 Optical identifications
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 11 A11 --- [VBZ2002] Name (JHHMM-DDMMa) 12 A1 --- n_[VBZ2002] [dt] Individual note (1) 14- 15 I2 h RAh Right ascension (J2000) 17- 18 I2 min RAm Right ascension (J2000) 20- 23 F4.1 s RAs Right ascension (J2000) 25 A1 --- DE- Declination sign (J2000) 26- 27 I2 deg DEd Declination (J2000) 29- 30 I2 arcmin DEm Declination (J2000) 32- 33 I2 arcsec DEs Declination (J2000) 35- 40 F6.2 mJy S22cm ? Flux density at 22cm (1.36GHz) 42- 47 F6.2 mJy S13cm ? Flux density at 13cm (230MHz) 48 A1 --- n_S13cm [*] *: Non detections at 13 cm, S13cm≤0.65mJy in the image not corrected for the primary beam attenuation 50- 54 F5.2 --- Sp-Index ? Spectral index between 22 and 13 cm 57- 62 A6 --- Morph Radio morphological code (G1)
Note (1): Individual notes: d: The position of this radio source was taken from the 13cm image, where the nucleus of the double structure is clearly visible. t: This source shows a double morphology in the 13 cm image.
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 11 A11 --- [VBZ2002] Name (JHHMM+DDMMa) 13- 14 I2 h RArh Radio right ascension (J2000) 16- 17 I2 min RArm Radio right ascension (J2000) 19- 23 F5.2 s RArs Radio right ascension (J2000) 24 A1 --- DEr- Radio declination sign (J2000) 25- 26 I2 deg DErd Radio declination (J2000) 28- 29 I2 arcmin DErm Radio declination (J2000) 31- 32 I2 arcsec DErs Radio declination (J2000) 34- 39 F6.2 mJy S22cm Flux density of the radio source at 22cm 41- 46 F6.2 mJy S13cm ? Flux density of the radio source at 13cm 48- 52 F5.2 --- Sp-Index ? Spectral index of the radio source between 22cm and 13cm 54- 58 F5.2 [W/Hz] logP22cm ? Monochromatic radio power at 22cm 60- 65 A6 --- Morph Radio morphological code (G1) 67- 73 A7 --- Cluster Cluster where the radio galaxy is located 75- 76 I2 h RAh Optical counterpart right ascension (J2000) 78- 79 I2 min RAm Optical counterpart right ascension (J2000) 81- 85 F5.2 s RAs Optical counterpart right ascension (J2000) 86 A1 --- DE- Optical counterpart declination sign (J2000) 87- 88 I2 deg DEd Optical counterpart declination (J2000) 90- 91 I2 arcmin DEm Optical counterpart declination (J2000) 93- 94 I2 arcsec DEs Optical counterpart declination (J2000) 96-100 F5.2 mag bjmag bj magnitude of the optical counterpart 101 A1 --- n_bjmag [a?] Stellarity (1) 103 A1 --- r_bjmag [AC] Origin on bjmag (A: APM, C: COSMOS) 105-110 F6.2 mag BjMAG ? Optical counterpart absolute Bj magnitude 112-115 F4.2 --- R R parameter (normalized radio-optical distance) (2) 116 A1 --- n_R [bc] Note on R (3) 118-122 I5 km/s Vresc ? Recession velocity
Note (1): a: The optical counterpart is most likely a star. Note (2): R parameter: R2= Delta(r-o)2/(sigmag2+sigmar2), where Delta(r-o) is the positional offset between the radio and optical coordinates, sigmag is the optical position error and sigmar is the uncertainty in the radio position. Note (3): b: The optical candidate falls within the radio isocontours of the double structure. c: These identifications have R>3, however, due to the extent of the radio emission and/or of the optical counterpart, we can consider them reliable since the optical counterpart falls within the radio contours.
GLobal notes: Note (G1): Morphology code: unres.: unresolved res.: resolved/extended D: double
History: From electronic version of the journal
(End) James Marcout, Patricia Bauer [CDS] 24-Apr-2002
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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