J/ApJS/186/378 Hard X-ray survey from Swift-BAT 2004-2006 (Tueller+, 2010)
The 22 month Swift-BAT all-sky hard X-ray survey.
Tueller J., Baumgartner W.H., Markwardt C.B., Skinner G.K., Mushotzky R.F.,
Ajello M., Barthelmy S., Beardmore A., Brandt W.N., Burrows D.,
Chincarini G., Campana S., Cummings J., Cusumano G., Evans P., Fenimore E.,
Gehrels N., Godet O., Grupe D., Holland S., Kennea J., Krimm H.A., Koss M.,
Moretti A., Mukai K., Osborne J.P., Okajima T., Pagani C., Page K.,
Palmer D., Parsons A., Schneider D.P., Sakamoto T., Sambruna R., Sato G.,
Stamatikos M., Stroh M., Ukwata T., Winter L.
<Astrophys. J. Suppl. Ser., 186, 378-405 (2010)>
=2010ApJS..186..378T 2010ApJS..186..378T
ADC_Keywords: X-ray sources ; Surveys ; Cross identifications ; Redshifts
Mission_Name: Swift
Keywords: catalogs - galaxies: active - gamma rays: observations
novae, cataclysmic variables - surveys - X-rays: binaries
Abstract:
We present the catalog of sources detected in the first 22 months of
data from the hard X-ray survey (14-195keV) conducted with the Burst
Alert Telescope (BAT) coded mask imager on the Swift satellite. The
catalog contains 461 sources detected above the 4.8σ level with
BAT. High angular resolution X-ray data for every source from
Swift-XRT or archival data have allowed associations to be made with
known counterparts in other wavelength bands for over 97% of the
detections, including the discovery of ∼30 galaxies previously unknown
as active galactic nuclei and several new Galactic sources. A total of
266 of the sources are associated with Seyfert galaxies (median
redshift z∼0.03) or blazars, with the majority of the remaining
sources associated with X-ray binaries in our Galaxy. This ongoing
survey is the first uniform all-sky hard X-ray survey since HEAO-1 in
1977 (Fishman G.J., 1977IAUC.3134....1F 1977IAUC.3134....1F). Since the publication of the
nine-month BAT survey (Tueller, 2008, Cat. J/ApJ/681/113) we have
increased the number of energy channels from four to eight and have
substantially increased the number of sources with accurate average
spectra. The BAT 22 month catalog is the product of the most sensitive
all-sky survey in the hard X-ray band, with a detection sensitivity
(4.8σ) of 2.2x10-11erg/cm2/s (1mCrab) over most of the sky
in the 14-195keV band.
Description:
The BAT 22 month survey includes data taken between 2004 December 15
and 2006 October 27.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table5.dat 180 479 Catalog of sources in the 22-month Swift-BAT survey
(2004-December to 2006-October)
--------------------------------------------------------------------------------
See also:
VII/80 : The HEAO A-1 X-Ray Source Catalog (Wood+, 1984)
J/ApJ/633/L77 : SWIFT/BAT detections of AGN (Markwardt+, 2005)
J/ApJ/678/102 : BAT X-ray survey. I. (Ajello+, 2008)
J/ApJ/673/96 : BAT X-ray Survey - III (Ajello+, 2008)
J/ApJ/681/113 : Swift BAT survey of AGNs (Tueller+, 2008)
J/A+A/510/A48 : Palermo Swift-BAT Hard X-ray Catalogue (Cusumano+, 2010)
http://swift.gsfc.nasa.gov/docs/swift/results/bs22mon/ : The 22-month catalog
and associated data web page
Byte-by-byte Description of file: table5.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- Seq Running identification number
5- 9 A5 --- --- [SWIFT]
11- 22 A12 --- SWIFT Swift-BAT source name (JHHMM.m+DDMM) (1)
24- 30 F7.3 deg RAdeg Right Ascension in decimal degrees (J2000)
32- 38 F7.3 deg DEdeg Declination in decimal degrees (J2000)
40- 46 F7.2 --- S/N Signal-to-Noise ratio
48- 72 A25 --- CName Counterpart name
74-104 A31 --- OName Other name for counterpart
106-113 F8.4 deg RAdegC Counterpart Right Ascension
in decimal degrees (J2000) (2)
115-122 F8.4 deg DEdegC Counterpart Declination
in decimal degrees (J2000) (2)
124-130 F7.2 10-14W/m2 Flux ? Flux Swift-BAT 14-195keV band flux
132-135 F4.2 10-14W/m2 e_Flux ? Error in Flux
137-138 A2 --- C Confusion flag (3)
140-143 F4.2 --- HR [0,1] ? Hardness ratio (4)
145-148 F4.2 --- e_HR ? Error in HR
150-155 F6.4 --- z ? Redshift (5)
156 A1 --- f_z [?] Object has unknown z
158-162 F5.2 [10-7W] Lx ? Log luminosity in 14-195keV band (6)
164-180 A17 --- OType Source type
--------------------------------------------------------------------------------
Note (1): If a BAT name exists in the 9-month catalog Tueller et al. (2008,
Cat. J/ApJ/681/113), then that name is used. If there is no 9-month
BAT name, then the BAT name listed here is the name that was used to
request XRT followup observations (and used in the HEASARC archive).
When no previous BAT name for this source exists, we list here a BAT
name derived from the BAT position in this catalog.
Note (2): The counterpart position is the most accurate position known of
the object in the CName column, and is usually taken from NED or
SIMBAD. If no counterpart is known, the blind BAT position is listed.
Note (3): Confusion flag as follows:
A = 'Confused' source;
B = 'Confusing' source;
AB = Both confused and confusing. To make sense of this confounding
scenario, see Section 4 and Section 4.3.
Note (4): The ratio of the 35-150keV count rate to the 14-150keV count rate.
Note (5): Taken from the online databases NED and SIMBAD or in a few cases
from our own analysis of the optical data. A blank indicates that the
object is Galacatic unless flagged with a ? which indicates that the
object has an unknown redshift.
Note (6): Computed from the flux and redshift in this table.
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 19-Apr-2010