ACDS V10.0 - Thu May 09 16:38:51 CEST 2019
 |
Detailed Description of J/MNRAS/470/512 : INTEGRAL 14-year Galactic hard X-ray sources (Krivonos+, 2017)
|
 |
Note : this is the description file of the original catalog.
This HTML page corresponds well to the original description, but some minor
changes in the format may have been introduced in the FITS output
files in order to allow for arithmetic operations on quantities
such as coordinates and times. h:m:s and d:m:s units are normally
converted into degrees, and YYYY-MM-DD into julian days.
Similarly, some slight changes may have been introduced in the
units; the value given in the HTML files supersedes the value indicated in the ReadMe
file for this catalogue.
J/MNRAS/470/512 INTEGRAL 14-year Galactic hard X-ray sources (Krivonos+, 2017)
================================================================================
New hard X-ray sources discovered in the ongoing INTEGRAL Galactic plane survey
after 14 yr of observations.
Krivonos R.A., Tsygankov S.S., Mereminskiy I.A., Lutovinov A.A.,
Sazonov S.Y., Sunyaev R.A.
<Mon. Not. R. Astron. Soc., 470, 512-516 (2017)>
=2017MNRAS.470..512K (SIMBAD/NED BibCode)
================================================================================
ADC_Keywords: Surveys ; X-ray sources ; Gamma rays
Mission_Name: INTEGRAL
Keywords: surveys - X-rays: general
Abstract:
The International Gamma-Ray Astrophysics Laboratory (INTEGRAL)
continues to successfully work in orbit after its launch in 2002. The
mission provides the deepest ever survey of hard X-ray sources
throughout the Galaxy at energies above 20keV. We report on a
catalogue of new hard X-ray source candidates based on the latest sky
maps comprising 14yr of data acquired with the IBIS telescope onboard
INTEGRAL in the Galactic Plane (|b|<17.5°). The current catalogue
includes in total 72 hard X-ray sources detected at S/N>4.7{sigma} and
not known to previous INTEGRAL surveys. Among them, 31 objects have
also been detected in the on-going all-sky survey by the BAT telescope
of the Swift observatory. For 26 sources on the list, we suggest
possible identifications: 21 active galactic nuclei, two cataclysmic
variables, two isolated pulsars or pulsar wind nebulae and one
supernova remnant; 46 sources from the catalogue remain unclassified.
Description:
For this work, we selected all publicly available INTEGRAL data from
2002 December to 2017 March (spacecraft revolutions 26-1790).
In total, we obtained 124 727 ScW images covering the whole sky,
comprising ~220Ms of the effective (dead time-corrected) exposure. For
the purposes of this work we selected 79234 ScWs (~130Ms) within the
GP (|b|<17.5°). Following Krivonos et al. (2012, Cat.
J/A+A/545/A27) we constructed six overlapping 70°x35°
Cartesian projections centred at the GP (|b|=0°) and Galactic
longitudes l=0°, ±50°, ±115° and l=180°.
File Summary:
FileName Lrecl Records Explanations
× 80 . This file
× ReadMe 80 . This file
× catalog.dat 183 72 The catalogue of hard X-ray sources (table 2)
× refs.dat 67 16 References
× list.dat 162 24 List of 70°x36° sky mosaics maps
× fits/* 0 24 Individual fits maps
See also:
J/A+A/545/A27 : INTEGRAL/IBIS 9-year Galactic hard X-ray survey
(Krivonos+, 2012)
Byte-by-byte Description of file: catalog.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Seq [1/72] Running number
4- 14 A11 --- Name INTEGRAL (IGR) object name
16- 22 F7.3 deg RAdeg Right Ascension (J2000)
24- 30 F7.3 deg DEdeg Declination (J2000)
32- 35 F4.2 10-14W/m2 Flux 17-60keV flux (10-11erg/s/cm2)
37- 40 F4.2 10-14W/m2 e_Flux 17-60keV 1 {sigma} flux error
(10-11erg/s/cm2)
42- 45 F4.1 --- snr Signal-to-noise ratio
47 I1 --- noise [0/1] Systematic noise (1)
49- 55 A7 --- Type Source astrophysical type (2)
57- 63 A7 --- r_Type Reference for the category of the source
in refs.dat file
65- 85 A21 --- Hard Hard X-ray/gamma counterpart
87-131 A45 --- Soft Soft X-ray counterpart
133-183 A51 --- OptIR Optical/IR counterpart
Note (1): The source is located in the region of high systematic noise, and its
measured flux should be treated with caution (noise=1).
Note (2): General astrophysical type of the object as follows:
AGN = active galactic nucleus
SNR/PWN = supernova remnant/pulsar wind nebula
CV = cataclysmic variable
PSR = isolated pulsar or pulsar wind nebula
The question mark indicates that the specified type is not firmly determined,
so it should be confirmed.
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Ref Reference number
4- 22 A19 --- BibCode BibCode
24- 41 A18 --- Aut Author's name
44- 67 A24 --- Com Comments
Byte-by-byte Description of file: list.dat
Bytes Format Units Label Explanations
1- 5 A5 keV Band Energy band (low-high)
7- 12 F6.1 deg GLON Region Galactic longitude
14- 18 F5.1 deg GLAT [0] Region Galactic latitude
20- 23 I4 --- Nx Number of pixels along X-axis
25- 27 I3 --- Ny Number of pixels along Y-axis
29- 33 I5 Kibyte size Size of FITS file
35- 56 A22 --- FileName Name of the FITS file in subdirectory fits
58-162 A105 --- Title Title of the FITS file (1)
Note (1): 1mCrab=1.43nW/m2=1.43*10-11erg/s/cm2.
Acknowledgements:
Roman Krivonos, krivonos(at)iki.rssi.ru
Based on observations with INTEGRAL, an ESA project with instruments
and science data centre funded by ESA member states (especially the PI
countries: Denmark, France, Germany, Italy, Switzerland, Spain), Czech
Republic, and Poland, and with the participation of Russia and the USA
================================================================================
(End) Patricia Vannier [CDS] 22-Jan-2018