ADC/CDS Standard Document for Catalog:/journal_tables/A+A/385/39/
ADC/CDS Standard Document for Catalog:| 1. Use the ADC Data Viewer Suite to visualize the data. |
|
| 2. Get the data files via anonymous FTP. (See Note.) |
|
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. P_22cm_<=10^22.6^
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 b_j_ 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 B_j_ 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:
R^2^= Delta(r-o)^2^/(sigma_g_^2^+sigma_r_^2^), where
Delta(r-o) is the positional offset between the radio and optical
coordinates,
sigma_g_ is the optical position error and
sigma_r_ 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