J/ApJ/613/279 ACS Virgo Cluster Survey. III. M87 (Jordan+, 2004)
The ACS Virgo Cluster Survey. III. Chandra and Hubble space telescope
observations of low-mass X-ray binaries and globular clusters in M87.
Jordan A., Cote P., Ferrarese L., Blakeslee J.P., Mei S., Merritt D.,
Milosavljevic M., Peng E.W., Tonry J.L., West M.J.
<Astrophys. J., 613, 279-301 (2004)>
=2004ApJ...613..279J 2004ApJ...613..279J
ADC_Keywords: Clusters, galaxy ; Surveys ; Binaries, X-ray ; Clusters, globular
Mission_Name: Chandra
Keywords: galaxies: elliptical and lenticular, cD -
galaxies: individual (M87) - galaxies: star clusters -
globular clusters: general - X-rays: binaries
Abstract:
The ACIS instrument on board the Chandra X-Ray Observatory has been
used to carry out the first systematic study of low-mass X-ray
binaries (LMXBs) in M87, the giant elliptical galaxy near the
dynamical center of the Virgo Cluster. These images - with a total
exposure time of 154 ks - are the deepest X-ray observations yet
obtained of M87. We identify 174 X-ray point sources, of which 150 are
likely LMXBs.
Description:
M87 (NGC 4486) was observed with the Chandra Advanced CCD Imaging
Spectrometer (ACIS) for 121ks on 2002 July 5-6. In what follows, we
use only the S3 chip data. In addition, we used 38ks of archival ACIS
observations of M87 taken on 2000 July 29.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 123 174 X-ray Point-sources in M87
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See also:
J/AJ/90/1681 : The Virgo Cluster Catalog (VCC) (Binggeli+, 1985)
J/ApJS/153/223 : ACS Virgo Cluster Survey. I (Cote+, 2004)
J/ApJS/154/509 : ACS Virgo Cluster Survey. II (Jordan+, 2004)
J/ApJS/164/334 : ACS Virgo Cluster Survey. VI. (Ferrarese+, 2006)
J/ApJS/171/101 : ACS Virgo cluster Survey. XII. (Jordan+, 2007)
J/ApJ/655/144 : ACS Virgo Cluster Survey. XIII. (Mei+, 2007)
J/ApJ/681/197 : ACS Virgo Cluster Survey. XV. (Peng+, 2008)
J/ApJS/180/54 : ACS Virgo Cluster Survey. XVI. (Jordan+, 2009)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- [JCF2004] Identification number
5- 8 A4 --- --- [CXOU]
10- 25 A16 --- CXOU CXOU designation (JHHMMSS.s+DDMMSS)
27- 31 F5.2 10-4ct/s CR Count rate
33- 38 F6.2 10+30W XLum The 0.3-10keV band luminosity
in units of 1037erg/s (1)
40- 44 F5.2 --- H21 The 2-1 hardness ratio (2)
46- 50 F5.2 --- H31 The 3-1 hardness ratio (2)
52- 54 A3 --- ACS [yes no] ACS observation ?
56-123 A68 --- OC Information on optical counterpart
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Note (1): Obtained assuming a power law spectral shape with power law index
κ=1.64 and a Galactic hydrogen column density
NH=2.5.1020cm-2 (Stark et al., 1992, Cat. VIII/10).
Note (2): Where H21=(M-S)/(M+S) and H31=(H-S)/(H+S) and S, M and H are the
counts in a soft (0.3-1keV), medium (1-2keV), and hard (1-10keV)
energy bands respectively.
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History:
From electronic version of the journal
References:
Cote et al., Paper I 2004ApJS..153..223C 2004ApJS..153..223C, Cat. J/ApJS/153/223
Jordan et al. Paper II 2004ApJS..154..509J 2004ApJS..154..509J, Cat. J/ApJS/154/509
Mei et al. Paper IV 2005ApJS..156..113M 2005ApJS..156..113M
Mei et al. Paper V 2005ApJ...625..121M 2005ApJ...625..121M
Ferrarese et al. Paper VI 2006ApJS..164..334F 2006ApJS..164..334F, Cat. J/ApJS/164/334
Hasegan et al. Paper VII 2005ApJ...627..203H 2005ApJ...627..203H
Cote et al., Paper VIII 2006ApJS..165...57C 2006ApJS..165...57C
Peng et al. Paper IX 2006ApJ...639...95P 2006ApJ...639...95P
Jordan et al. Paper X 2005ApJ...634.1002J 2005ApJ...634.1002J
Peng et al. Paper XI 2006ApJ...639..838P 2006ApJ...639..838P
Jordan et al. Paper XII 2007ApJS..171..101J 2007ApJS..171..101J, Cat. J/ApJS/171/101
Mei et al. Paper XII 2007ApJ...655..144M 2007ApJ...655..144M, Cat. J/ApJ/655/144
Mieske et al. Paper XIV 2006ApJ...653..193M 2006ApJ...653..193M
Peng et al., Paper XV 2008ApJ...681..197P 2008ApJ...681..197P, Cat. J/ApJ/681/197
Jordan et al. Paper XVI 2009ApJS..180...54J 2009ApJS..180...54J, Cat. J/ApJS/180/54
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 28-Jan-2005