J/A+A/426/11 XMM-Newton survey of M33 (Pietsch+, 2004)
XMM-Newton survey of the Local Group galaxy M 33.
Pietsch W., Misanovic Z., Haberl F., Hatzidimitriou D., Ehle M.,
Trinchieri G.
<Astron. Astrophys. 426, 11 (2004)>
=2004A&A...426...11P 2004A&A...426...11P
ADC_Keywords: Galaxies, nearby ; X-ray sources
Mission_Name: XMM
Keywords: Galaxies: individual: M 33 - X-rays: galaxies
Abstract:
In an XMM-Newton raster observation of the bright Local Group spiral
galaxy M 33 we study the population of X-ray sources (X-ray binaries,
supernova remnants) down to a 0.2-4.5keV luminosity of 1035erg/s -
more than a factor of 10 deeper than earlier ROSAT observations. EPIC
hardness ratios and optical and radio information are used to
distinguish between different source classes. The survey detects 408
sources in an area of 0.80 square degree. We correlate these newly
detected sources with earlier M 33 X-ray catalogues and information
from optical, infra-red and radio wavelengths. As M 33 sources we
detect 21 supernova remnants (SNR) and 23 SNR candidates, 5 super-soft
sources and 2 X-ray binaries (XRBs). There are 267 sources classified
as hard, which may either be XRBs or Crab-like SNRs in M 33 or
background AGN. The 44 confirmed and candidate SNRs more than double
the number of X-ray detected SNRs in M 33. 16 of these are proposed as
SNR candidates from the X-ray data for the first time. On the other
hand, there are several sources not connected to M 33: five foreground
stars, 30 foreground star candidates, 12 active galactic nucleus
candidates, one background galaxy and one background galaxy candidate.
Extrapolating from deep field observations we would expect 175 to 210
background sources in this field. This indicates that about half of
the sources detected are within M 33.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 552 408 X-ray source catalogue of the XMM-Newton EPIC
M 33 raster observation
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See also:
J/A+A/373/438 : The X-ray view of M33 after ROSAT (Haberl+ 2001)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- [PMH2004] Source Number
5 I1 h RAh Right Ascension J2000 (hours)
7- 8 I2 min RAm Right Ascension J2000 (minutes)
10- 14 F5.2 s RAs Right Ascension J2000 (seconds)
17 A1 --- DE- Declination J2000 (sign)
18- 19 I2 deg DEd Declination J2000 (degrees)
21- 22 I2 arcmin DEm Declination J2000 (minutes)
24- 27 F4.1 arcsec DEs Declination J2000 (seconds)
29- 33 F5.2 arcsec PosErr Positional error
35- 42 E8.3 --- LH Source detection likelihood
(combined EPIC)
44- 51 E8.3 ct/s CRate Combined EPIC count rate (1)
53- 59 E7.2 ct/s e_CRate Error in CRate
61- 68 E8.3 mW/m2 CFlux Combined EPIC flux in erg/cm2/s (1)
70- 76 E7.2 mW/m2 e_CFlux Error in CFlux
78- 82 F5.2 --- CHR1 ? Combined EPIC hardness ratio 1 (2)
84- 87 F4.2 --- e_CHR1 ? Error in CHR1
89- 93 F5.2 --- CHR2 ? Combined EPIC hardness ratio 2 (2)
95- 98 F4.2 --- e_CHR2 ? Error in CHR2
100-104 F5.2 --- CHR3 ? Combined EPIC hardness ratio 3 (2)
106-109 F4.2 --- e_CHR3 ? Error in CHR3
111-115 F5.2 --- CHR4 ? Combined EPIC hardness ratio 4 (2)
117-120 F4.2 --- e_CHR4 ? Error in CHR4
122-124 A3 --- VAL EPIC instruments contributing to source
detection (3)
126-129 F4.1 ks PNExpo ? Exposure of EPIC pn instrument
131-138 E8.3 --- PNLH ? EPIC pn source detection likelihood
140-147 E8.3 ct/s PNRate ? EPIC pn count rate (1)
149-155 E7.2 ct/s e_PNRate ? Error in PNRate
157-164 E8.3 mW/m2 PNFlux ? EPIC pn flux in erg/cm2/s (1)
166-172 E7.2 mW/m2 e_PNFlux ? Error in PNFlux
174-178 F5.2 --- PNHR1 ? EPIC pn hardness ratio 1 (2)
180-183 F4.2 --- e_PNHR1 ? Error in PNHR1
185-189 F5.2 --- PNHR2 ? EPIC pn hardness ratio 2 (2)
191-194 F4.2 --- e_PNHR2 ? Error in PNHR2
196-200 F5.2 --- PNHR3 ? EPIC pn hardness ratio 3 (2)
202-205 F4.2 --- e_PNHR3 ? Error in PNHR3
207-211 F5.2 --- PNHR4 ? EPIC pn hardness ratio 4 (2)
213-216 F4.2 --- e_PNHR4 ? Error in PNHR4
218-221 F4.1 ks M1Expo ? Exposure of EPIC MOS1 instrument
223-230 E8.3 --- M1LH ? EPIC MOS1 source detection likelihood
232-239 E8.3 ct/s M1Rate ? EPIC MOS1 count rate (1)
241-247 E7.2 ct/s e_M1Rate ? Error in M1Rate
249-256 E8.3 mW/m2 M1Flux ? EPIC MOS1 flux in erg/cm2/s (1)
258-264 E7.2 mW/m2 e_M1Flux ? Error in M1Flux
266-270 F5.2 --- M1HR1 ? EPIC MOS1 hardness ratio 1 (2)
272-275 F4.2 --- e_M1HR1 ? Error in M1HR1
277-281 F5.2 --- M1HR2 ? EPIC MOS1 hardness ratio 2 (2)
283-286 F4.2 --- e_M1HR2 ? Error in M1HR2
288-292 F5.2 --- M1HR3 ? EPIC MOS1 hardness ratio 3 (2)
294-297 F4.2 --- e_M1HR3 ? Error in M1HR3
299-303 F5.2 --- M1HR4 ? EPIC MOS1 hardness ratio 4 (2)
305-308 F4.2 --- e_M1HR4 ? Error in M1HR4
310-313 F4.1 ks M2Expo ? Exposure of EPIC MOS2 instrument
315-322 E8.3 --- M2LH ? EPIC MOS2 source detection likelihood
324-331 E8.3 ct/s M2Rate ? EPIC MOS2 count rate (1)
333-339 E7.2 ct/s e_M2Rate ? Error in M2Rate
341-348 E8.3 mW/m2 M2Flux ? EPIC MOS2 flux in erg/cm2/s (1)
350-356 E7.2 mW/m2 e_M2Flux ? Error in M2Flux
358-362 F5.2 --- M2HR1 ? EPIC MOS2 hardness ratio 1 (2)
364-367 F4.2 --- e_M2HR1 ? Error in M2HR1
369-373 F5.2 --- M2HR2 ? EPIC MOS2 hardness ratio 2 (2)
375-378 F4.2 --- e_M2HR2 ? Error in M2HR2
380-384 F5.2 --- M2HR3 ? EPIC MOS2 hardness ratio 3 (2)
386-389 F4.2 --- e_M2HR3 ? Error in M2HR3
391-395 F5.2 --- M2HR4 ? EPIC MOS2 hardness ratio 4 (2)
396-399 F4.2 --- e_M2HR4 ? Error in M2HR4
401-440 A40 --- XID ? X-ray identification (4)
442-453 A12 --- USNO-B1.0 ? Name of brightest USNO_B1.0 (I/284)
source within search area
455 I1 --- o_USNO-B1.0 ? Number of USNO_B1.0 correlations
457-459 F3.1 arcsec USNOdis ? Distance of source USNO-B1.0
461-464 F4.1 mag B2mag ? B2 magnitude of source USNO-B1.0
466-469 F4.1 mag R2mag ? R2 magnitude of source USNO-B1.0
471-474 F4.1 mag Imag ? I magnitude of source USNO-B1.0
476-479 F4.1 --- logfX/fo ? Logarithm of fX/fopt
481-500 A20 --- Class ? Classification of X-ray source (5)
502-551 A50 --- Remarks ? Additional remarks (6)
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Note (1): Count rate and flux in XID band (0.2-4.5keV)
Note (2): HRi=(R(i+1)-R(i))/(R(i+1)+R(i)) where Ri are the
count rates in the energy bands 1 to 5:
band 1 = 0.2-0.5keV,
band 2 = 0.5-1.0keV,
band 3 = 1.0-2.0keV,
band 4 = 2.0-4.5keV,
band 5 = 4.5-12keV
Note (3): First character for EPIC PN, second for MOS1, third for MOS2;
character = T : source is in field of view of instrument
F : otherwise
Note (4): References in XID are as follows:
X-n : Long et al., 1981ApJ...246L..61L 1981ApJ...246L..61L;
Trinchieri et al., 1988ApJ...329.1037T 1988ApJ...329.1037T
SBn : Schulman & Bregman, 1995ApJ...441..568S 1995ApJ...441..568S
LCBn : Long et al., 1996ApJ...466..750L 1996ApJ...466..750L
DCL97: Dubus et al., 1997ApJ...490L..47D 1997ApJ...490L..47D
DCL99: Dubus et al., 1999MNRAS.302..731D 1999MNRAS.302..731D
HPn : Haberl & Pietsch, 2001A&A...373..438H 2001A&A...373..438H
Note (5): Classifications used (see Table 5) is abbreviated as follows:
"fg Star" = foreground star
= foreground star candidate
AGN = active galactic nucleus
= AGN candidate
GAL = galaxy
= galaxy candidate
SSS = supersoft source in M 33
= supersoft source candidate in M 33
SNR = supernova remnant in M 33
= supernova remnant candidate in M 33
XRB = X-ray binary in M 33
= HR2-e_HR2>-0.2 or only HR3 and HR4 defined, and no other
classification
Note (6): References in remarks use the following abbreviations:
SIM : SIMBAD Database
NED : NASA Extragalactic Database
NVSS : Condon et al., 1998AJ....115.1693C 1998AJ....115.1693C
CS82 : Christian & Schommer, 1982ApJ...253L..13C 1982ApJ...253L..13C
[MC83]25 : Massey & Conti, 1983ApJ...273..576M 1983ApJ...273..576M
IFM* : Ivanov et al., 1993ApJS...89...85I 1993ApJS...89...85I
GKLn : Gordon et al., 1998ApJS..117...89G 1998ApJS..117...89G
GDKn : Gordon et al., 1999ApJS..120..247G 1999ApJS..120..247G
IV74 : Israel & van der Kruit, 1974A&A....32..363I 1974A&A....32..363I
VBW78 : von Kap-Herr et al., 1978A&A....62...51V 1978A&A....62...51V
M98 : Massey, 1998ApJ...501..153M 1998ApJ...501..153M
MCM2001 : Magrini et al., 2001A&A...367..498M 2001A&A...367..498M
MBH96 : Massey et al., 1996ApJ...469..629M 1996ApJ...469..629M
PMM2004 : Pietsch et al., 2004A&A...413..879P 2004A&A...413..879P
GM94 : Giovagnoli & Mould, 1994PASP..106..376G 1994PASP..106..376G
FSZ : Fabrika et al., 1997BSAO...43..133F 1997BSAO...43..133F
D33 : Macri et al., 2001AJ....121..870M 2001AJ....121..870M;
Mochejska et al., 2001AJ....121.2032M 2001AJ....121.2032M
RW93 : Regan & Wilson, 1993AJ....105..499R 1993AJ....105..499R
VHK : Hubble, 1926ApJ....63..236H 1926ApJ....63..236H
CGC97 : Crampton et al., 1997AJ....114.2353C 1997AJ....114.2353C
BCLMP : Boulesteix et al., 1974A&A....37...33B 1974A&A....37...33B
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Acknowledgements: Wolfgang Pietsch
(End) Wolfgang Pietsch [MPE, Germany] 04-May-2004