J/ApJS/168/19 Chandra sources in 5 galaxy clusters (Martel+, 2007)
The host galaxies and environment of Chandra-selected active galactic nuclei in
the deep ACS GTO cluster fields.
Martel A.R., Menanteau F., Tozzi P., Ford H.C., Infante L.
<Astrophys. J. Suppl. Ser., 168, 19-57 (2007)>
=2007ApJS..168...19M 2007ApJS..168...19M
ADC_Keywords: Clusters, galaxy ; Active gal. nuclei ; X-ray sources ;
Photometry, HST ; Redshifts
Keywords: galaxies: active - galaxies: clusters: general -
galaxies: clusters: individual (RX J0152-1357, RX J0849+4452,
RDCS J0910+5422, MS 1054-0321, RDCS J1252-2927) -
X-rays: galaxies: clusters
Abstract:
We present catalogs and images of optical counterparts to the
Chandra-selected X-ray sources found in the fields of the five
clusters RX J0152-1357, RX J0849+4452, RDCS J0910+5422, MS 1054-0321,
and RDCS J1252-2927, which were imaged with the Advanced Camera for
Surveys as part of the ACS Guaranteed Time Observer programs. A total
of 98 X-ray sources fall within the ACS mosaics, and positive
identifications are made for ∼96% of them, including confirmed cluster
members. We classify the sources as active galactic nuclei (AGNs) or
QSOs depending on their X-ray output.
Description:
All five clusters of the sample were observed as part of the ACS GTO
programs 9290 and 9919 in Cycles 11 and 12.
Chandra observations were made for RX J0152-1357 was observed on 2000
Sep 8, RX J0849+4452 on 2000 May 3-4, RDCS J0910+5422 on 2001 Apr 24
and 28, MS 1054-0321 on 2000 Apr 21, and RDCS J1252-2927 on 2003 Mar
18 and 20.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tables.dat 121 98 Optical and X-Ray properties of Chandra sources
in the five cluster's ACS fields
(tables 4-8 of the paper)
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See also:
B/chandra : The Chandra Archive Log (CXC, 1999-)
J/ApJS/155/271 : Chandra Deep Field-South: Optical spectroscopy (Szokoly+ 2004)
J/ApJ/663/164 : RDCS J1252.9-2927 VLT and ACS observations (Demarco+, 2007)
Byte-by-byte Description of file: tables.dat
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Bytes Format Units Label Explanations
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1 I1 --- Code Code for Cluster (1)
3- 5 I3 --- XID Chandra ID (2)
6 A1 --- n_XID Note on XID (3)
8- 9 I2 h RAh Right ascension (J2000)
11- 12 I2 min RAm Right ascension (J2000)
14- 18 F5.2 s RAs Right ascension (J2000)
20 A1 --- DE- Declination sign (J2000)
21- 22 I2 deg DEd Declination (J2000)
24- 25 I2 arcmin DEm Declination (J2000)
27- 31 F5.2 arcsec DEs Declination (J2000)
33- 38 F6.4 --- z ? Spectroscopic redshift unless specified
39 A1 --- n_z [p] p for BPZ photometric redshift
41- 45 F5.2 mag Vmag ? Isophotal SEXtractor V(F625W) magnitude
in AB system (4)
47- 50 F4.2 mag e_Vmag ? rms uncertainty on Vmag
52- 56 F5.2 mag imag ? Isophotal SEXtractor i(F775W) magnitude
in AB system (4)
58- 61 F4.2 mag e_imag ? rms uncertainty on imag
63- 67 F5.2 mag Zmag ? Isophotal SEXtractor Z(F850LP) magnitude
in AB system (4)
69- 72 F4.2 mag e_Zmag ? rms uncertainty on Zmag
74- 78 F5.2 --- HR ? Hardness ratio ((H-S)/(H+S))
80- 83 F4.2 --- e_HR ? rms uncertainty on HR
85- 92 F8.5 aW/m2 FS Observed Chandra flux in the soft
(0.5-2keV) band (10-15erg/cm2/s)
93-100 F8.5 aW/m2 FH Observed Chandra flux in the hard
(2-10keV) band (10-15erg/cm2/s)
102-106 F5.2 [10-7W] logLXS ? Base 10 logarithm of the observed X-ray
luminosity in the soft band (0.5-2keV)
108-112 F5.2 [10-7W] logLXH ? Base 10 logarithm of the observed X-ray
luminosity in the hard band (2-10keV)
114 I1 --- Cl [1/3]? Visual classification of the galaxies
into three general morphological types (5)
116-121 A6 --- XCl X-ray class as in Szokoly et al.
(2004, Cat. J/ApJS/155/271
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Note (1): Cluster code as follows:
4 = RX J0152-1357 ([MMT2007] ClG J0152-1357 NN)
5 = RX J0849+4452 ([MMT2007] ClG J0849+4452 NNN)
6 = RDCS J0910+5422 ([MMT2007] RDCS J0910+5422 NN)
7 = MS 1054-0321 ([MMT2007] 1E 1054.4-0321 NNN)
8 = RDCS J1252-2927 ([MMT2007] RDCS J1252-2927 NNN)
Note (2): Sources identified as [MMT2007] Cluster NNN in Simbad.
Note (3): Individual notes as follows:
a = No optical counterpart is detected by SExtractor, although some
very low-surface brightness material is observed within the
error circle. The position of the X-ray peak after registration
is listed.
b = The X-ray peak is located approximately 0.9" to the southeast of
a resolved galaxy with a compact core. We list the properties
of this galaxy in the table.
c = The X-ray emission coincides with an extended low surface
brightness patch. There is a brighter (i775=23.9), compact
source ∼1.7" to the southwest.
d = The X-ray emission is extended and overlaps a faint optical
source whose properties we list here.
e = Saturated unresolved source
f = The optical source appears unresolved but possibly imbedded in
a compact, faint nebulosity.
g = The optical source appears unresolved but possibly imbedded in
a compact, faint nebulosity.
h = The X-ray emission consists of two peaks aligned along a
north-south axis and separated by ∼4". The northern peak
coincides with a large spiral galaxy whose properties we list here.
i = No optical counterpart is detected in the ACS detection image.
The position of the X-ray peak after registration is listed.
j = No optical counterpart is detected in the ACS detection image.
The peak X-ray position after registration is listed.
k = Saturated unresolved source.
l = There are two compact optical sources separated by 0.3". We list
the properties of the northwest source, which is the brightest
of the two in our detection image.
m = The X-ray emission is weak and extended and covers two sources,
a large, smooth spheroid listed in the table and a smaller
spheroid located 1.9" to the southwest.
n = The X-ray emission extends over a highly disturbed system that
appears to consist of two merging galaxies. We list the
properties of the southwest galaxy, the brightest and most
extended of the two.
o = Because the X-ray emission is extended, there is possible
confusion in the optical identification between the compact
galaxy listed in the table and a more diffuse and dimmer galaxy
0.8" to the northwest.
p = The X-ray peak, whose coordinates are listed here after
registration, is located between a compact source (i775∼24.5)
at RA(J2000.0)=12:52:59.61 and DE(J2000.0)=-29:24:52.6 and
several diffuse sources.
Note (4): Magnitudes are corrected for Galactic extinction.
Note (5): General morphological types as follows:
1 = early-type
2 = late-type
3 = irregular/peculiar
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 08-Aug-2009