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INTREFCAT - INTEGRAL Reference Catalog

HEASARC
Archive

Overview

The original version of the INTEGRAL Reference Catalog as published in 2003 classified previously known bright X-ray and gamma-ray sources before the launch of INTEGRAL. These sources are, or have been at least once, brighter than ~1 milliCrab above 3 keV energy, and are expected to be detected by INTEGRAL. This catalog was used in the INTEGRAL Quick Look Analysis (QLA) to discover new sources or significantly variable sources. The authors compiled several published X-ray and gamma-ray catalogs, and surveyed recent publications for new sources. Consequently, there were 1121 sources in the original INTEGRAL Reference Catalog. In addition to the source positions, an approximate spectral model and expected flux were given for each source, and the expected INTEGRAL counting rates based on these parameters was derived. Assuming the default instrument performances and at least ~10^5 seconds exposure time for any part of the sky, it is expected that INTEGRAL will detect at least ~700 sources below 10 keV and ~400 sources above 20 keV over the mission life. After the launch of INTEGRAL, a version of this catalog was placed on the ISDC website at http://isdc.unige.ch/index.cgi?Data+catalogs and has been updated periodically since then by adding, for example, new sources discovered by INTEGRAL itself (indicated by the IGR prefix in the name). Thus, as of mid-2004, the INTEGRAL Reference Catalog contained 1390 sources. This HEASARC table is based on the web version at the ISDC, and will be updated whenever the latter is updated.

Catalog Bibcode

2003A&A...411..L59E

References

This table is taken from the online web page maintained by the INTEGRAL Science Data Center at the URL http://isdc.unige.ch/Data/cat/latest/catalog.html Additional information pertaining to an earlier version of this catalog: High-energy sources before INTEGRAL. INTEGRAL reference catalog. Ebisawa K., Bourban G., Bodaghee A., Mowlavi N., Courvoisier T.J.-L. <Astron. Astrophys. 411, L59 (2003)> =2003A&A...411L..59E (SIMBAD/NED BibCode)


Provenance

This database table is updated automatically in the HEASARC database system within one week of any changes to the online web page maintained by the INTEGRAL Science Data Center at the URL http://isdc.unige.ch/Data/cat/latest/catalog.html

Version Comments

The INTEGRAL Science Data Center's detailed comments about the changes made to the catalog in the latest version:
Version 27, 2006-12-04
Updated by Arash Bodaghee
* Added new sources (ISGRI flag set to 1): IGR J00040+7020 (Bird et al. 06, astro-ph/0611493) IGR J00245+6251 (Bird et al. 06, astro-ph/0611493) IGR J00254+6822 (=IGR J00256+6821, Kuiper et al. 06, ATel:939) IGR J00335+6126 (=IGR J00333+6122, Kuiper et al. 06, ATel:939) IGR J01528-0326 (ATel:883) IGR J02343+3229 (ATel:883) IGR J02501+5440 (=IGR J02504+5443, Kuiper et al. 06, ATel:939) IGR J03184-0014 (Bird et al. 06, astro-ph/0611493) IGR J03334+3718 (ATel:880) IGR J05053-7343 (Bird et al. 06, astro-ph/0611493) IGR J05270-6631 (Bird et al. 06, astro-ph/0611493) IGR J06292+4858 (Bird et al. 06, astro-ph/0611493) IGR J07295-1329 (Bird et al. 06, astro-ph/0611493) IGR J07437-5137 (Bird et al. 06, astro-ph/0611493) IGR J09025-6814 (Bird et al. 06, astro-ph/0611493) IGR J09103-3741 (Bird et al. 06, astro-ph/0611493) IGR J09253+6929 (Bird et al. 06, astro-ph/0611493) IGR J09446-2636 (=6dF J0944370-263356, Sazonov et al. 06, astro-ph/0608418) IGR J09469-4603 (Bird et al. 06, astro-ph/0611493) IGR J09485-4726 (Bird et al. 06, astro-ph/0611493) IGR J09523-6231 (Bird et al. 06, astro-ph/0611493) IGR J10147-6354 (Bird et al. 06, astro-ph/0611493) IGR J10448-5945 (Bird et al. 06, astro-ph/0611493) IGR J11098-6457 (Bird et al. 06, astro-ph/0611493) IGR J11187-5438 (Bird et al. 06, astro-ph/0611493) IGR J11366-6002 (Bird et al. 06, astro-ph/0611493) IGR J13186-6257 (Bird et al. 06, astro-ph/0611493) IGR J13149+4422 (=Mrk 248, Sazonov et al. 06, astro-ph/0608418) IGR J14319-3315 (Bird et al. 06, astro-ph/0611493) IGR J14532-6356 (Bird et al. 06, astro-ph/0611493) IGR J15161-3827 (Bird et al. 06, astro-ph/0611493) IGR J16024-6107 (Bird et al. 06, astro-ph/0611493) IGR J16056-6110 (Bird et al. 06, astro-ph/0611493) IGR J16248-4603 (Bird et al. 06, astro-ph/0611493) IGR J16287-5021 (Bird et al. 06, astro-ph/0611493) IGR J16328-4726 (Bird et al. 06, astro-ph/0611493) IGR J16385-2057 (Bird et al. 06, astro-ph/0611493) IGR J16426+6536 (Bird et al. 06, astro-ph/0611493) IGR J16460+0849 (Bird et al. 06, astro-ph/0611493) IGR J17008-6425 (Bird et al. 06, astro-ph/0611493) IGR J17314-2854 (Bird et al. 06, astro-ph/0611493) IGR J17379-3747 (Bird et al. 06, astro-ph/0611493) IGR J17404-3655 (Bird et al. 06, astro-ph/0611493) IGR J17426-0258 (Bird et al. 06, astro-ph/0611493) IGR J17448-3232 (Bird et al. 06, astro-ph/0611493) IGR J17461-2204 (Bird et al. 06, astro-ph/0611493) IGR J17461-2853 (Bird et al. 06, astro-ph/0611493) IGR J17476-2253 (Bird et al. 06, astro-ph/0611493) IGR J17487-3124 (Bird et al. 06, astro-ph/0611493) IGR J17497-2821 (ATel:885) IGR J17507-2647 (Bird et al. 06, astro-ph/0611493) IGR J17515-1533 (Bird et al. 06, astro-ph/0611493) IGR J17586-2129 (Bird et al. 06, astro-ph/0611493) IGR J18134-1636 (Bird et al. 06, astro-ph/0611493) IGR J18173-2509 (Bird et al. 06, astro-ph/0611493) IGR J18244-5622 (=XSS J18236-5616, Revnivtsev et al. 06) IGR J18246-1425 (Bird et al. 06, astro-ph/0611493) IGR J18308-1232 (=IGR J183047-1232, Bird et al. 06, astro-ph/0611493) IGR J18485-0047 (Bird et al. 06, astro-ph/0611493) IGR J19048-1240 (Bird et al. 06, astro-ph/0611493) IGR J19267+1325 (Bird et al. 06, astro-ph/0611493) IGR J19378-0617 (Bird et al. 06, astro-ph/0611493) IGR J19405-3016 (Bird et al. 06, astro-ph/0611493) IGR J19443+2117 (Bird et al. 06, astro-ph/0611493) IGR J19487+5120 (Bird et al. 06, astro-ph/0611493) IGR J20006+3210 (ATel:880) IGR J21272+4241 (Bird et al. 06, astro-ph/0611493) IGR J21347+4737 (Bird et al. 06, astro-ph/0611493) IGR J22234-4116 (Bird et al. 06, astro-ph/0611493) IGR J22292+6647 (Bird et al. 06, astro-ph/0611493) IGR J23130+8608 (Bird et al. 06, astro-ph/0611493) IGR J23308+7120 (Bird et al. 06, astro-ph/0611493) IGR J23524+5842 (Bird et al. 06, astro-ph/0611493) 1H 0323+342 (Bird et al. 06, astro-ph/0611493) 1RXS J094436.5-263353 (=LEDA 138501, Sazonov et al. 06, astro-ph/0608418) 1RXS J133447.5+371100 (Bird et al. 06, astro-ph/0611493) 3C 403 (Sazonov et al. 06, astro-ph/0608418) ESO 297-18 (Sazonov et al. 06, astro-ph/0608418) ESO 323-32 (Bird et al. 06, astro-ph/0611493) ESO 383-18 (Sazonov et al. 06, astro-ph/0608418) ESO 399-20 (Bird et al. 06, astro-ph/0611493) EXMS B1136-650 (Bird et al. 06, astro-ph/0611493) EXMS B1210-645 (Bird et al. 06, astro-ph/0611493) FO Aqr (Bird et al. 06, astro-ph/0611493) IRAS 05589+2828 (Sazonov et al. 06, astro-ph/0608418) LEDA 96373 (Sazonov et al. 06, astro-ph/0608418) MCG-02-08-014 (Bird et al. 06, astro-ph/0611493) Mrk 50 (Bird et al. 06, astro-ph/0611493) Mrk 268 (Sazonov et al. 06, astro-ph/0608418) Mrk 783 (Sazonov et al. 06, astro-ph/0608418) Mrk 915 (Sazonov et al. 06, astro-ph/0608418) NGC 1142 (Bird et al. 06, astro-ph/0611493) NGC 4138 (Bird et al. 06, astro-ph/0611493) NGC 4180 (Bird et al. 06, astro-ph/0611493) NGC 4395 (Bird et al. 06, astro-ph/0611493) PKS 0611-663 (Bird et al. 06, astro-ph/0611493) PKS 1241-399 (Sazonov et al. 06, astro-ph/0608418) PSR J1617-5055 (Bird et al. 06, astro-ph/0611493) PSR J1811-1926 (Bird et al. 06, astro-ph/0611493) QSO B0309+411 (=B3 B0309+411B, Bird et al. 06, astro-ph/0611493) RBS 345 (Bird et al. 06, astro-ph/0611493) RX J2135.9+4728 (Bird et al. 06, astro-ph/0611493) SWIFT J0216.3+5128 (Bird et al. 06, astro-ph/0611493) SWIFT J1656.3-3302 (Bird et al. 06, astro-ph/0611493) XSS J12270-4859 (Bird et al. 06, astro-ph/0611493)
* Added new sources (ISGRI flag set to 0):
SWIFT J174540.2-290005.3 (ATel:920)
* ISGRI flag switched to 1: 1H 1249-637 (Bird et al. 06, astro-ph/0611493) 1H 1556-605 (Bird et al. 06, astro-ph/0611493) 3C 382 (Bird et al. 06, astro-ph/0611493) 3C 390.3 (Bird et al. 06, astro-ph/0611493) 4C 74.26 (Bird et al. 06, astro-ph/0611493) 4U 0022+63 (Bird et al. 06, astro-ph/0611493) 4U 0937-12 (=NGC 2992, Sazonov et al. 06, astro-ph/0608418) 4U 1036-56 (Bird et al. 06, astro-ph/0611493) Ark 120 (Sazonov et al. 06, astro-ph/0608418) AX J1739.3-2923 (Bird et al. 06, astro-ph/0611493) AX J1749.1-2733 (Bird et al. 06, astro-ph/0611493) AX J1830.6-1002 (=AX J183039-1002, Bird et al. 06, astro-ph/0611493) AX J1910.7+0917 (=AXJ1910.7+0917, Bird et al. 06, astro-ph/0611493) BL Lac (Bird et al. 06, astro-ph/0611493) GT 0236+610 (Bird et al. 06, astro-ph/0611493) Her X-1 (Bird et al. 06, astro-ph/0611493) MCG-02-58-022 (Bird et al. 06, astro-ph/0611493) Mrk 110 (Sazonov et al. 06, astro-ph/0608418) Mrk 348 (Sazonov et al. 06, astro-ph/0608418) Mrk 501 (Sazonov et al. 06, astro-ph/0608418) Mrk 766 (=NGC 4253, Sazonov et al. 06, astro-ph/0608418) Mrk 1040 (Sazonov et al. 06, astro-ph/0608418) NGC 526 (Sazonov et al. 06, astro-ph/0608418) NGC 1052 (Bird et al. 06, astro-ph/0611493) NGC 1365 (Sazonov et al. 06, astro-ph/0608418) NGC 3081 (Sazonov et al. 06, astro-ph/0608418) NGC 3227 (Sazonov et al. 06, astro-ph/0608418) NGC 3281 (Bird et al. 06, astro-ph/0611493) NGC 3783 (Bird et al. 06, astro-ph/0611493) NGC 4258 (Sazonov et al. 06, astro-ph/0608418) NGC 5252 (Bird et al. 06, astro-ph/0611493) NGC 5995 (Bird et al. 06, astro-ph/0611493) NGC 6240 (Sazonov et al. 06, astro-ph/0608418) NGC 7172 (Bird et al. 06, astro-ph/0611493) NGC 7314 (Bird et al. 06, astro-ph/0611493) NGC 7469 (Sazonov et al. 06, astro-ph/0608418) PG 0804+761 (=QSO B0804+761, Bird et al. 06, astro-ph/0611493) RX J0146.9+6121 (Bird et al. 06, astro-ph/0611493) RX J1826.2-1450 (Bird et al. 06, astro-ph/0611493) SWIFT J0601.9-8636 (Bird et al. 06, astro-ph/0611493) SWIFT J0917.2-6221 (Bird et al. 06, astro-ph/0611493) SWIFT J1009.3-4250 (Bird et al. 06, astro-ph/0611493) SWIFT J1038.8-4942 (Bird et al. 06, astro-ph/0611493) SWIFT J1238.9-2720 (Bird et al. 06, astro-ph/0611493) SWIFT J1922.7-1716 (Bird et al. 06, astro-ph/0611493) SWIFT J2000.6+3210 (Bird et al. 06, astro-ph/0611493) SWIFT J2127.4+5654 (Bird et al. 06, astro-ph/0611493) Was 49 (=WAS 49B, Sazonov et al. 06, astro-ph/0608418)
* JEM-X flag switched to 1:
PSR B0540-69.3 (2006IAUJD...2E...8S)
IGR J17497-2821 (ATel:886)
* Refined positions for: IGR J00234+6141 (Bird et al. 06, astro-ph/0611493) IGR J01363+6610 (Bird et al. 06, astro-ph/0611493) IGR J01528-0326 (Bird et al. 06, astro-ph/0611493) IGR J03532-6829 (Bird et al. 06, astro-ph/0611493) IGR J06239-6052 (Bird et al. 06, astro-ph/0611493) IGR J06253+7334 (Bird et al. 06, astro-ph/0611493) IGR J07597-3842 (Masetti et al. 06, optical) IGR J10101-5654 (Masetti et al. 06, optical) IGR J11305-6256 (Bird et al. 06, astro-ph/0611493) IGR J13109-5552 (Bird et al. 06, astro-ph/0611493) IGR J14003-6326 (Bird et al. 06, astro-ph/0611493) IGR J14175-4641 (Masetti et al. 06, optical) IGR J14298-6715 (Bird et al. 06, astro-ph/0611493) IGR J14331-6112 (Bird et al. 06, astro-ph/0611493) IGR J14471-6319 (Masetti et al. 06, optical) IGR J14515-5542 (Masetti et al. 06, optical) IGR J14536-5522 (Masetti et al. 06, optical) IGR J14552-5133 (Masetti et al. 06, optical) IGR J15094-6649 (Masetti et al. 06, optical) IGR J16185-5928 (Masetti et al. 06, optical) IGR J16351-5806 (Bird et al. 06, astro-ph/0611493) IGR J16351-5806 (=ESO 137-34, Paturel et al. 02, optical) IGR J16558-5203 (Masetti et al. 06, optical) IGR J17091-3624 (Bird et al. 06, astro-ph/0611493) IGR J17200-3116 (Masetti et al. 06, optical) IGR J17331-2406 (Bird et al. 06, astro-ph/0611493) IGR J17464-3213 (Bird et al. 06, astro-ph/0611493) IGR J17488-3253 (Masetti et al. 06, optical) IGR J17507-2856 (Bird et al. 06, astro-ph/0611493) IGR J17513-2011 (Masetti et al. 06, optical) IGR J18027-1455 (Combi et al. 06, radio) IGR J18048-1455 (ATel:880, Chandra) IGR J18244-5622 (Bird et al. 06, astro-ph/0611493) IGR J18450-0435 (Sguera et al. 06, Swift) IGR J20187+4041 (Bykov et al. 06, Swift) IGR J21247+5058 (Bird et al. 06, astro-ph/0611493) 3A 1954+319 (Masetti et al. 06, Chandra) 4U 0022+63 (Bird et al. 06, astro-ph/0611493) 4U 1909+07 (Bird et al. 06, astro-ph/0611493) Ginga 1843+009 (Bird et al. 06, astro-ph/0611493) GRS 1734-292 (Marti et al. 98, optical/IR) KS 1741-293 (Bird et al. 06, astro-ph/0611493) NGC 4051 (Sazonov et al. 06, astro-ph/0608418) NGC 7172 (Stickel et al. 04) SAX J1818.6-1703 (ATel:915, Chandra) XTE J1543-568 (Bird et al. 06, astro-ph/0611493) XTE J1743-363 (Rupen et al. 04, radio) XTE J1858+034 (Bird et al. 06, astro-ph/0611493)
* Merged sources:
IGR J12391-1612 and LEDA 170194 (Masetti et al. 06)
IGR J13020-6359 and 2RXP J130159.5-635803 (2005MNRAS.364..455C)
IGR J17088-4008 and 1RXS J170849.0-400910
PSR J1846-0258 and AX J1846.4-0258
* ISGRI flag switched to 0: 1E 1742.8-2853 (Belanger & Bird, private communication) 1E 1742.9-2849 (Belanger & Bird, private communication)


HEASARC Implementation

The HEASARC has made some minor changes to this table compared to the original version obtained from the ISDC. We have added two new parameters, ra_precision and dec_precision (q.v.).

Parameters

Source_Number
The INTEGRAL Reference Catalog source number, in order of increasing J2000 RA.

Name
The INTEGRAL Reference Catalog source name. Often there are two or more names commonly used for the same source. The authors have taken the name which they consider to be the most popular in high-energy astrophysics and which is also used as a SIMBAD source identifier. Thus, users can directly put the source name into the SIMBAD query box.

RA
The Right Ascension of the high-energy source. In most cases, positions are taken from SIMBAD. From time to time, however, the authors found and adopted a more recent position determination than SIMBAD. The accuracy depends on the individual sources, which was reflected in the representation of the source positions in the original CDS table where the J2000 RAs were given with a precision that varied from 0.001 seconds of time to 1 minute of time. To help users, the HEASARC has added a parameter called ra_precision which has the following values:

       ra_precision    meaning

         60.           position given with 1 minute of time precision
          6.           position given with 0.1 minutes of time precision
          1.           position given with 1 second of time precision
          0.1          position given with 0.1 seconds of time precision
          0.01         position given with 0.01 seconds of time precision
          0.001        position given with 0.001 seconds of time precision
  

Dec
The Declination of the high-energy source. In most cases, positions are taken from SIMBAD. From time to time, however, the authors found and adopted a more recent position determination than SIMBAD. The accuracy depends on the individual sources, which was reflected in the representation of the source positions in the original CDS table where the J2000 Declinations were given with a precision that varied from 0.01 arcseconds to 1 degree. To help users, the HEASARC has added a parameter called dec_precision which has the following values:

dec_precision meaning

3600. position given with 1 degree of precision 360. position given with 0.1 degrees of precision 60. position given with 1 arcminute of precision 6. position given with 0.1 arcminutes of precision 1. position given with 1 arcsecond of precision 0.1 position given with 0.1 arcseconds of precision 0.01 position given with 0.01 arcseconds of precision

RA_Precision
This parameter encodes the original precision of the RA in the CDS table on which this HEASARC Browse table is based, as follows:

ra_precision meaning

60. position given with 1 minute of time precision 6. position given with 0.1 minutes of time precision 1. position given with 1 second of time precision 0.1 position given with 0.1 seconds of time precision 0.01 position given with 0.01 seconds of time precision 0.001 position given with 0.001 seconds of time precision

Dec_Precision
This parameter encodes the original precision of the Dec in the CDS table on which this HEASARC Browse table is based, as follows:

dec_precision meaning

3600. position given with 1 degree of precision 360. position given with 0.1 degrees of precision 60. position given with 1 arcminute of precision 6. position given with 0.1 arcminutes of precision 1. position given with 1 arcsecond of precision 0.1 position given with 0.1 arcseconds of precision 0.01 position given with 0.01 arcseconds of precision

LII
The Galactic Longitude of the high-energy source.

BII
The Galactic Latitude of the high-energy source.

Error_Radius
The positional uncertainty of the high-energy source, in arcseconds.

Pos_Ref_Bibcode
The ADS Bibcode for the source position reference. This is for readers who need to know the position accuracy and/or position determination method. Often SIMBAD gives the source position reference as well as the position itself, in which case the authors have taken both. Otherwise, they searched for the proper references themselves.

Pos_Ref_Author
The authors of the position reference specified by the pos_ref_bibcode parameter.

Source_ID
This parameter is the unique identifier for the source, and, will remain the same even if the source position is modified at a later date.

ISGRI_Flag
This parameter has the value of 1 if the source has been detected by ISGRI; otherwise, it is set to 0.

JEMX_Flag
This parameter has the value of 1 if the source has been detected by JEMX; otherwise, it is set to 0.

SPI_Flag
This parameter has the value of 1 if the source has been detected by SPI; otherwise, it is set to 0.

PICSIT_Flag
This parameter has the value of 1 if the source has been detected by PICSIT; otherwise, it is set to 0.

Spectral_Model_Type
The authors derived a "typical" spectral model and model parameters, including the model normalization. They followed the XSPEC format (Arnaud 1996; http://xspec.gsfc.nasa.gov) for the definition of the models and the model parameters. See Sect. 4 of the published paper for more details.

Spectral_Model_Pars
The authors derived a "typical" spectral model and model parameters, including the model normalization. They followed the XSPEC format (Arnaud 1996; http://xspec.gsfc.nasa.gov) for the definition of the models and the model parameters. See Sect. 4 of the published paper for more details.

Flux_3_10keV
The 3 - 10 keV energy flux, in ergs s^-1 cm^-2, and calculated from the assumed spectral models. The authors have taken typical JEMX soft and hard energy bands (3 - 10 keV and 10 - 30 keV) and ISGRI soft and hard bands (20 - 60 keV and 60 - 200 keV).

Flux_10_30keV
The 10 - 30 keV energy flux, in ergs s^-1 cm^-2, and calculated from the assumed spectral models. The authors have taken typical JEMX soft and hard energy bands (3 - 10 keV and 10 - 30 keV) and ISGRI soft and hard bands (20 - 60 keV and 60 - 200 keV).

Flux_20_60keV
The 20 - 60 keV energy flux, in ergs s^-1 cm^-2, and calculated from the assumed spectral models. The authors have taken typical JEMX soft and hard energy bands (3 - 10 keV and 10 - 30 keV) and ISGRI soft and hard bands (20 - 60 keV and 60 - 200 keV).

Flux_60_200keV
The 60 - 200 keV energy flux, in ergs s^-1 cm^-2, and calculated from the assumed spectral models. The authors have taken typical JEMX soft and hard energy bands (3 - 10 keV and 10 - 30 keV) and ISGRI soft and hard bands (20 - 60 keV and 60 - 200 keV).

JEMX_Soft_Count_Rate
Using the nominal INTEGRAL detector responses, the expected count rate in the Joint European X-Ray Monitor (JEMX), calculated for the soft JEMX energy band (3 - 10 keV). In the actual QLA operation, JEMX and ISGRI source count rates are measured in these energy bands so as to compare with the catalog. The following calibration files, most recent ones in July 2003 (but still based on pre-launch calibration), are used in this calculation: jmx2_rmf_grp_0003.fits for JEMX and isgr_rmf_grp_0005.fits and isgr_arf_rsp_0002.fits for ISGRI.

After the launch of INTEGRAL, the pre-launch estimate of the JEMX effective area was revealed to be overestimated by a factor of 2 (P. Kretschmar, private communication). Therefore, the authors divided the JEMX count rates calculated using the aforementioned responses by a factor of two. This prescription has been confirmed to be valid from simultaneous INTEGRAL-RXTE observations of the source 3C 273 (Courvoisier et al. 2003, A&A, 411, L343) and Cyg X-1 (Pottschmidt et al. 2003, A&A, 411, L383).

JEMX_Hard_Count_Rate
Using the nominal INTEGRAL detector responses, the expected count rate in the Joint European X-Ray Monitor (JEMX), calculated for the hard JEMX energy band (10 - 30 keV). In the actual QLA operation, JEMX and ISGRI source count rates are measured in these energy bands so as to compare with the catalog. The following calibration files, most recent ones in July 2003 (but still based on pre-launch calibration), are used in this calculation: jmx2_rmf_grp_0003.fits for JEMX and isgr_rmf_grp_0005.fits and isgr_arf_rsp_0002.fits for ISGRI.

After the launch of INTEGRAL, the pre-launch estimate of the JEMX effective area was revealed to be overestimated by a factor of 2 (P. Kretschmar, private communication). Therefore, the authors divided the JEMX count rates calculated using the aforementioned responses by a factor of two. This prescription has been confirmed to be valid from simultaneous INTEGRAL-RXTE observations of the source 3C 273 (Courvoisier et al. 2003, A&A, 411, L343) and Cyg X-1 (Pottschmidt et al. 2003, A&A, 411, L383).

ISGRI_Soft_Count_Rate
Using the nominal INTEGRAL detector responses, the expected count rate in the ISGRI CdTe array of the Imager on Board the INTEGRAL Satellite (IBIS) instrument, calculated for the soft ISGRI energy band (20 - 60 keV). In the actual QLA operation, JEMX and ISGRI source count rates are measured in these energy bands so as to compare with the catalog. The following calibration files, most recent ones in July 2003 (but still based on pre-launch calibration), are used in this calculation: jmx2_rmf_grp_0003.fits for JEMX and isgr_rmf_grp_0005.fits and isgr_arf_rsp_0002.fits for ISGRI. For ISGRI, actual observations of the Crab pulsar and other sources confirmed that the pre-launch estimate of the effective area was more or less correct (within 20 % or so).

ISGRI_Hard_Count_Rate
Using the nominal INTEGRAL detector responses, the expected count rate in the ISGRI CdTe array of the Imager on Board the INTEGRAL Satellite (IBIS) instrument, calculated for the hard ISGRI energy band (60 - 200 keV). In the actual QLA operation, JEMX and ISGRI source count rates are measured in these energy bands so as to compare with the catalog. The following calibration files, most recent ones in July 2003 (but still based on pre-launch calibration), are used in this calculation: jmx2_rmf_grp_0003.fits for JEMX and isgr_rmf_grp_0005.fits and isgr_arf_rsp_0002.fits for ISGRI.

For ISGRI, actual observations of the Crab pulsar and other sources confirmed that the pre-launch estimate of the effective area was more or less correct (within 20 % or so).

Source_Type
A characterization of the source type, such as low-mass X-ray binary, high-mass X-ray binary, Seyfert-1 galaxy, etc.

Alt_Names
Various alternate names for the high-energy source. Since there are many varieties of sources, the authors did not have a consistent rule to decide which aliases to choose. However, they did try to put at least one alias directly related to high-energy satellites and/or catalogs. For example, "4U" for the 4th Uhuru catalog (Forman et al. 1978, ApJS, 182, 489), and "2EG" for the 2nd EGRET source catalog (Thompson et al. 1995, ApJS, 101, 259).

Class
The HEASARC Browse object classification, based on the value of the source_type parameter.


Contact Person

Questions regarding the INTREFCAT database table can be addressed to the HEASARC User Hotline.

Page Author: Browse Software Development Team
Last Modified: Monday, 02-Apr-2007 13:50:04 EDT