J/ApJ/649/730 ULX population in nearby galaxies from XMM (Winter+, 2006)
XMM-Newton archival study of the ultraluminous X-ray population in
nearby galaxies.
Winter L.M., Mushotzky R.F., Reynolds C.S.
<Astrophys. J., 649, 730-752 (2006)>
=2006ApJ...649..730W 2006ApJ...649..730W
ADC_Keywords: Surveys ; Galaxies, nearby ; X-ray sources
Keywords: accretion, accretion disks - galaxies: general - surveys -
X-rays: binaries
Abstract:
We present the results of an archival XMM-Newton study of the bright
X-ray point sources (LX>1038ergs/s) in 32 nearby galaxies. From our
list of approximately 100 point sources, we attempt to determine if
there is a low-state counterpart to the ultraluminous X-ray (ULX)
population, searching for a soft-hard state dichotomy similar to that
known for Galactic X-ray binaries and testing the specific predictions
of the intermediate-mass black hole (IMBH) hypothesis. To this end, we
searched for low-state objects, which we defined as objects within our
sample that had a spectrum well fitted by a simple absorbed power law,
and high-state objects, which we defined as objects better fitted by a
combined blackbody and a power law.
Description:
The data used in this investigation were drawn from the XMM-Newton
public data archive.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 109 32 XMM-Newton Galaxy Observations
table6.dat 139 113 Bright Point Sources Examined
table10.dat 50 32 XMM-Newton Galaxy Observations: Infrared Details
and Number of ULXs
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See also:
B/xmm : XMM-Newton Observation Log (XMM-Newton SOC, 2007)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Galaxy Galaxy name
13- 29 A17 --- MType Morphological type, from the NASA/IPAC
Extragalactic Database (NED)
31- 35 F5.2 10+20cm-2 nH Column density, obtained from the Web version
of the nH FTOOL
37- 40 F4.2 Mpc Dist Distancec (if no reference is given, obtained
from the distance modulus given in LEDA)
41- 42 I2 --- r_Dist ? Distance reference if not LEDA (1)
44- 53 I010 ---- ObsID XMM-Newton observation ID of data examined
54 A1 --- --- [,]
56- 65 I010 ---- ObsID2 ? Second XMM-Newton observation ID
67- 72 I6 s Dur Duration
73 A1 --- --- [,]
75- 80 I6 s Dur2 ? Second duration
82-109 A28 --- Com Comments
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Note (1): References as follows:.
1 = Tully 1988, NGC, Cat. VII/145
2 = Tosi et al., 2001AJ....122.1271T 2001AJ....122.1271T
3 = Tolstoy et al., 19951995AJ....110.1640T
4 = Freedman et al., 1994ApJ...427..628F 1994ApJ...427..628F
5 = Sakai & Madore, 1999ApJ...526..599S 1999ApJ...526..599S
6 = Sakai et al., 1996ApJ...461..713S 1996ApJ...461..713S
7 = Shapley et al., 2001ApJS..137..139S 2001ApJS..137..139S
8 = Kelson, 1996, Cat. J/ApJ/463/26
9 = Karachentsev et al., 2002A&A...385...21K 2002A&A...385...21K
10 = Freeman et al., 1977A&A....55..445F 1977A&A....55..445F
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Galaxy Galaxy
11- 13 A3 --- --- [XMM]
14 I1 --- ULX ? Source name within galaxy (1)
16- 17 I2 --- f_ULX ? Source peculiarities (2)
19- 20 I2 h RAh ? Hour of Right Ascension (J2000)
22- 23 I2 min RAm ? Minute of Right Ascension (J2000)
25- 28 F4.1 s RAs ? Second of Right Ascension (J2000)
30 A1 --- DE- Sign of the Declination (J2000)
31- 32 I2 deg DEd ? Degree of Declination (J2000)
34- 35 I2 arcmin DEm ? Arcminute of Declination (J2000)
37- 40 F4.1 arcsec DEs ? Arcsecond of Declination (J2000)
42- 46 I5 ct ctPN ? Total PN counts
48- 52 I5 ct ctMOS1 ? Total MOS1 counts
54- 58 I5 ct ctMOS2 ? Total MOS2 counts
60- 65 F6.2 10-2ct/s CR-PN ? The PN count rate
67- 71 F5.2 10-2ct/s CR-MOS1 ? The MOS1 count rate
73- 77 F5.2 10-2ct/s CR-MOS2 ? The MOS2 count rate
79-116 A38 --- ID Alternative identification of ULX source
117-118 I2 --- n_ID ? Individual notes (3)
120-131 A12 --- Loc Location in the galaxy (4)
133 I1 --- f_Loc [6]? '6' when appears extended in HST image
135-139 A5 --- Refs References on XMM spectra studies (6)
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Note (1): Sources labeled XMMn in order of apparent brightness from the
first observation studied.
Source identified as [WMR2006] Galaxy Source in Simbad
Note (2): Flag on name as follows:
5 = Transient
8 = Spectra too scattered to model
9 = bright sources coincide with nucleus (unresolvable star cluster
and X-ray binaries), fore-ground star, and background AGN
(Martin, Kobulnicky, Heckman (2002ApJ...574..663M 2002ApJ...574..663M)
12 = bright source is too close to other sources
15 = Unable to model sprectrum due to an error in χ2-space
16 = bright sources are too close, but resolvable by Chandra
(Summers et al., 2004MNRAS.351....1S 2004MNRAS.351....1S)
18 = bright sources near the nucleus are unresolvable, but seen by
Chandra (Smith & Wilson, 2001ApJ...557..180S 2001ApJ...557..180S)
Note (3): Flag on ID as follows:
4 = identification for NGC0253 following Humphrey et al. (2003,
Cat. J/MNRAS/344/134).
10 = IXO designation from Colbert & Ptak (2002, Cat. J/ApJS/143/25).
11 = spectrum from Hol IX observation.
13 = Chandra observations of point sources in NGC4449 published in
Summers et al. (2003MNRAS.342..690S 2003MNRAS.342..690S); Source 27 varied from
ROSAT observations
14 = three other sources near the nucleus are unresolvable in the
XMM obs., but seen by Chandra (Eracleous et al.,
2002ApJ...565..108E 2002ApJ...565..108E).
17 = alternate ID from Jenkins et al. (2004MNRAS.349..404J 2004MNRAS.349..404J).
Note (4): Location specified as: inside the optical extent of the galaxy or
in spiral arms (sa), near the center of the galaxy, at the edge of a
spiral arm/optical extent of galaxy, or outside the optical extent of
the galaxy. Location based on DSS images.
Note (6): References as follows:
1 = Pietsch et al. (2001A&A...365L.174P 2001A&A...365L.174P)
2 = Pietsch, Haberl & Vogler (2003A&A...402..457P 2003A&A...402..457P)
3 = Kong & Di Stefano (2003ApJ...590L..13K 2003ApJ...590L..13K)
4 = Miller et al. (2004ApJ...614L.117M 2004ApJ...614L.117M)
5 = Wang et al. (2004ApJ...609..113W 2004ApJ...609..113W)
6 = Schlegel et al. (2004ApJ...603..644S 2004ApJ...603..644S)
7 = Bauer, Brandt, & Lehmer (2003AJ....126.2797B 2003AJ....126.2797B)
8 = Kong (2003MNRAS.346..265K 2003MNRAS.346..265K)
9 = Lehmann et al. (2005A&A...431..847L 2005A&A...431..847L)
10 = Zimmermann & Aschenbach (2003A&A...406..969Z 2003A&A...406..969Z)
11 = Roberts et al. (2005MNRAS.357.1363R 2005MNRAS.357.1363R)
12 = Jenkins et al. (2004MNRAS.349..404J 2004MNRAS.349..404J)
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Byte-by-byte Description of file: table10.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Galaxy Galaxy name
16- 23 F8.3 Jy S60um ?=- Flux at 60um
25- 32 F8.3 Jy S100um ?=- Flux at 100um
34- 39 F6.3 pW/m2 FIR ? Far-infrared flux (10-9erg/cm2/s)
41- 47 F7.3 10+35W LFIR ?=- Far-infrared luminosity
50 I1 --- NULXs Number of ULXs
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 18-Jul-2008