J/A+A/467/585 Sources detected by ISGRI (Bodaghee+, 2007)
A description of sources detected by INTEGRAL during the first 4 years
of observations.
Bodaghee A., Courvoisier T.J.-L., Rodriguez J., Beckmann V., Produit N.,
Hannikainen D., Kuulkers E., Willis D.R., Wendt G.
<Astron. Astrophys., 467, 585-596 (2007)>
=2007A&A...467..585B 2007A&A...467..585B
ADC_Keywords: Gamma rays ; Surveys ; X-ray sources ; Binaries, X-ray
Mission_Name: INTEGRAL
Keywords: gamma-rays: observations - catalogs - X-rays: binaries -
Galaxy: stellar content
Abstract:
In its first 4 years of observing the sky above 20keV, INTEGRAL-ISGRI
has detected 500 sources, around half of which are new or unknown at
these energies. Follow-up observations at other wavelengths revealed
that some of these sources feature unusually large column densities,
long pulsations, and other interesting characteristics.
We investigate where new and previously-known sources detected by
ISGRI fit in the parameter space of high-energy objects, and we use
the parameters to test correlations expected from theoretical
predictions. For example, the influence of the local absorbing matter
on periodic modulations is studied for Galactic High-Mass X-ray
Binaries (HMXBs) with OB supergiant and Be companions. We examine the
spatial distribution of different types of sources in the Milky Way
using various projections of the Galactic plane, in order to highlight
signatures of stellar evolution and to speculate on the origin of the
group of sources whose classifications are still uncertain.
Description:
File table1.dat contains the names of all 499 sources detected so far
by ISGRI, with the most precise coordinates (J2000) and error radii
available in the literature. Classifications are provided for all
sources. When available, the published photoelectric absorption in the
X-rays, distances/redshifts, and pulsation and orbital periods are
also listed.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 380 498 *List of ISGRI source parameters
types.dat 52 41 Object Classification
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Note on table1.dat: Source PSR B1841-04, present in table1 in the electronic
version of the paper was removed after discussion with the author.
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See also:
J/A+A/411/L59 : INTEGRAL reference catalog (Ebisawa+, 2003)
J/ApJ/607/L33 : First IBIS/ISGRI Catalog: 20-100keV (Bird+, 2004)
J/ApJ/636/765 : Second IBIS/ISGRI soft gamma-ray survey catalog (Bird+, 2006)
J/ApJ/636/765 : Second IBIS/ISGRI soft gamma-ray survey catalog (Bird+, 2006)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 21 A21 -- Name Name of the source (1)
23- 24 I2 h RAh Right ascension (J2000) (2)
25 A1 --- --- [:]
26- 27 I2 min RAm Right ascension (J2000) (2)
28 A1 --- --- [:]
29- 34 F6.3 s RAs Right ascension (J2000) (2)
36 A1 --- DE- Declination sign (J2000) (2)
37- 38 I2 deg DEd Declination (J2000) (2)
39 A1 --- --- [:]
40- 41 I2 arcmin DEm Declination (J2000) (2)
42 A1 --- --- [:]
43- 47 F5.2 arcsec DEs ? Declination (J2000) (2)
49- 53 F5.3 arcmin e_Pos Position mean error
55- 61 F7.3 deg GLON Galactic Longitude (J2000)
63- 69 F7.3 deg GLAT Galactic Latitude (J2000)
71- 89 A19 -- r_Pos Position: Reference, BibCode
91- 99 F9.5 10+22cm-2 NH ?=- Hydrogen column Density (3)
101-108 F8.5 10+22cm-2 e_NH ?=- Hydrogen column Density: Lower Error Bar
110-117 F8.5 10+22cm-2 E_NH ?=- Hydrogen column Density: Upper Error Bar
119-137 A19 -- r_NH ? Hydrogen column Density: Reference
139-151 F13.7 s Ppulse ? Pulse Period (4)
153-164 F12.7 s e_Ppulse ? Pulse Period: Lower Error Bar
166-177 F12.7 s E_Ppulse ? Pulse Period: Upper Error Bar
179-197 A19 -- r_Ppulse ? Pulse Period: Reference, BibCode
199-210 F12.7 d Porb ? Orbital Period (4)
211-220 F10.7 d e_Porb ? Orbital Period: Lower Error Bar
221-230 F10.7 d E_Porb ? Orbital Period: Upper Error Bar
232-250 A19 -- r_Porb ? Orbital Period: Reference, BibCode
252-257 F6.3 kpc Dist ? Distance (5)
259-263 F5.3 kpc e_Dist ? Distance: Lower Error Bar
265-269 F5.3 kpc E_Dist ? Distance: Upper Error Bar
271-289 A19 -- r_Dist ? Distance: Reference, BibCode
291-298 F8.6 --- z ? Redshift (5)
300-307 F8.6 --- e_z ? Redshift: Lower Error Bar
309-316 F8.6 --- E_z ? Redshift: Upper Error Bar
318-336 A19 -- r_z ? Redshift: Reference, BibCode
338-380 A43 -- Type Object Classification, detailed in
types.dat file (6)
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Note (1): Most sources have more than 1 name owing to detections by various
instruments operating at different energies. As in Ebisawa et al.
(2003, cat. J/A+A/411/L59), we selected names that are commonly used
in high-energy astrophysics and that are accepted as an identifier in
SIMBAD. This eases comparisons with other catalogs.
Note (2): Source positions are from the X-rays unless a more accurate
position at other wavelengths is known for a confirmed counterpart.
Note (3): Column densities were gathered from the literature whenever a
model fit to the X-ray spectrum required an absorption component.
Extracting a single NH for a source and comparing this value to
those of other sources is not a straightforward exercise since
intrinsic column densities are not static. A measurement made during
flaring or quiescent periods, or at different orbital epochs, will
heavily influence the NH. The geometry of the system, the energy
range of the satellite that gathered the data, and the model used to
describe the resulting spectrum also affect the NH value. Therefore,
the uncertainties are often large or only upper limits are provided.
Whenever possible, we selected the NH value of the model that best
fits a recent X-ray spectrum taken with a telescope that covers the
soft X-ray domain well.
Note (4): Spin periods and/or orbital periods have been reported for a
large number of Galactic objects detected by ISGRI. Some systems are
known to spin down, so we selected the most recent value from RXTE
whenever possible, even though this level of precision is not needed
for the purpose of our study. The spin period can refer to the spin of
the NS in X-ray binaries, or to the spin of the White Dwarf in CVs.
The catalogs of Liu et al. (2000-2001, Cat. V/106), and the systematic
analysis of RXTE data by Wen et al. (2006ApJS..163..372W 2006ApJS..163..372W) are among
the main references of spin and orbital periods in this work.
Note (5): Opinions sometimes differ as to the distances of some Galactic
sources. We favored distance measurements that were recent, precise
and that were the least model-dependent. Even so, the distance
uncertainties quoted in the literature can be large. The distance
measurements are from, among others, White & van Paradijs
(1996ApJ...473L..25W 1996ApJ...473L..25W), Grimm et al. (2002A&A...391..923G 2002A&A...391..923G), Jonker &
Nelemans (2004MNRAS.354..355J 2004MNRAS.354..355J), Bassani et al. (2006ApJ...636L..65B 2006ApJ...636L..65B),
Beckmann et al. (2006ApJ...638..642B 2006ApJ...638..642B), or from references in Liu et
al. (2000-2001, cat. V/106). Note that the distances in Grimm et al.
(2002A&A...391..923G 2002A&A...391..923G) sometimes represent an average over several
competing distance estimates.
Note (6): Source classifications are based on the concensus opinion in the
literature. Peculiar behaviour, such as quasi-periodic oscillations,
transience, and Z-track or Atoll shapes, are also noted since they can
help us distinguish between systems within the same class. If the
source classification has not yet been confirmed, it is simply called
"unclassified". The transient identification of a source is given by
any of the following:
1) the label was assigned by its discoverers or by other authors
(e.g. "Discovery of a new transient IGR J...'');
2) the source has not been detected by anyone else since its
discovery announcement, e.g. it is not listed in the all-data,
all-sky catalogs of Bird et al., 2006, Cat. J/ApJ/636/765,
2007ApJS..170..175B 2007ApJS..170..175B);
3) the source is detected only in mosaic images of a single or a few
consecutive revolutions according to Bird et al.
(2007ApJS..170..175B 2007ApJS..170..175B), but not in their all-data mosaic images.
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Byte-by-byte Description of file: types.dat
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Bytes Format Units Label Explanations
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1- 20 A20 --- Code Type code
22- 52 A31 --- Type Type
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Acknowledgements:
Arash Bodaghee, Arash.Bodaghee(at)obs.unige.ch
History:
* 12-Nov-2007: Initial version
* 02-Oct-2008: One name corrected in table1.dat
(End) Arash Bodaghee [ISDC, Geneva Obs.], Patricia Vannier [CDS] 06-Mar-2007