2011ATel.3453....1M

Query : 2011ATel.3453....1M

2011ATel.3453....1M - The Astronomer's Telegram, 3453, 1 (2011/June-0)

Swift detected outburst of the SFXT IGR J18410-0535/AX 1841.0-0536 .

MANGANO V., BARTHELMY S.D., ROMANO P., SAKAMOTO T., CHESTER M.M., SIEGEL M., EVANS P.A., ESPOSITO P., VERCELLONE S., BURROWS D.N., CUSUMANO G., FARINELLI R., KENNEA J.A., KRIMM H., LA PAROLA V. and GEHRELS N.

Abstract (from CDS):

The Swift Burst Alert Telescope (BAT) triggered on an outburst from the Supergiant Fast X-ray Transient (SFXT) IGR J18410-0535/AX1841.0-0536

on 2011 June 24 at 14:27:04.9 UT (image trigger=455967). Swift did not slew immediately because the merit value of this new trigger

was less than the merit value of the current target.

The source was detected in a 320-second BAT image trigger (T+0 s) starting

after settling (T-225 s) from a pre-planned slew. Ground processing reveals a weak detection in BAT (∼6.8 sigma, 15-50 keV). The mask-weighted

lightcurve shows some emission (∼0.02 counts/cm2/s, 15-50 keV) in the T-200 to T+0 pre-trigger interval. The emission increases slightly

to ∼0.05 counts/cm2/s around T+130 to T+200 s. A simple power law fit to the spectrum (T+0 to T+320 sec) yields an index of 2.6 ± 0.7 (chisq is 63.7, dof=57), and the fluence is (4.8,-1.9,+2.3)E-7 erg/cm2.

The XRT began a single orbit follow up observation of the field at 15:52:47 UT, about 5100 s after the BAT trigger. The limited duration of the XRT follow (∼1 ks) was due to strict temperature constraints. The source count rate reached a peak at about 7 counts/s and decreased

to about 2 counts/s at the end of the observation. The spectrum of PC mode data can be fitted (using Cash statistics) with an absorbed power-law with a photon index of 0.19 (+0.69,-0.30) and an absorbing column density of NH=[1.5(+2.2,-1.1) ]E22 cm-2. The average 2-10 keV unabsorbed flux is ∼3.6E-10 erg/cm2/s.

This is the second outburst of IGR J18410-0535 detected by the BAT for which Swift performed a follow up observation that clearly revealed an on-going flaring activity in the XRT. Observation results on the previous Swift-detected outburst, which occurred 2010 June 5, are reported in Romano et al. 2011 (MNRAS,412,L30). Compared to the 2010 June 5 event, this flare shares consistent spectroscopic

characteristics.

Several on-board BAT detections have been reported (Romano, et al. 2009,MNRAS,399,2021).

The historical light curve from the BAT hard X-ray transient monitor (Krimm et al, 2006, ATel #904; 15-50 keV) can be found at http://swift.gsfc.nasa.gov/docs/swift/results/transients/weak/IGRJ18410-0535/

We would like to thank the Swift Team for making these observations possible,

in particular the duty scientists as well as the science planners.


Abstract Copyright: ∼

Journal keyword(s): Gamma Ray - Request for Observations - Binary - Neutron Star - Transient

Simbad objects: 1

goto View the references in ADS

Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 IGR J18410-0535 HXB 18 41 00.4353543192 -05 35 46.474692324   15.91   13.645 11.631 B1Ib 137 0

Query : 2011ATel.3453....1M

Basic data :
IGR J18410-0535 -- High Mass X-ray Binary
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types: 		X (AX,PBC,...), HXB (2007ApJS), * (UCAC4,USNO,...), NIR (DENIS,2MASS), MIR (SSTGLMC,WISE), Psr (2007ApJS), Be* (2015MNRAS), gam (IGR)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) : 		18 41 00.4353543192 -05 35 46.474692324 (Optical) [ 0.0393 0.0332 90 ] A 2020yCat.1350....0G
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) : 		18 38 20.1834535727 -05 38 38.841710632 [ 0.0393 0.0332 90 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) : 		026.7643166337242 -00.2388103711978 [ 0.0393 0.0332 90 ]
Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode"
  • pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr)
  • pm-dec : mu-dec (expressed in the ICRS system in mas/yr)
  • [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the proper motion reference
Proper motions mas/yr : 		-2.068 -5.376 [0.046 0.040 90] A 2020yCat.1350....0G
Spectral type is made of 3 parts: %coding is composed of 4 parts :
  • the spectral type, which is made of a temperature class, eventually a luminosity class (roman number) and/or spectral peculiarities;
  • a quality letter: A=best quality→E=worst quality, {� } =unknown quality %
  • a quality letter: A=best quality -> E=worst quality, {� } =unknown quality
  • bibcode : bibcode of the spectral type reference
Spectral type: 		B1Ib C 2008A&A...486..911N
Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z
  • (System) : may be AB (default is Vega)
  • flux-value : value of flux or magnitude
  • [error] : error value
  • quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality)
  • MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4])
  • bibcode : bibcode of the flux reference
Fluxes (7) :
B 15.91 [~] E ~
R 13.645 [0.07] E 2012yCat.1322....0Z
G 12.965174 [0.003105] C 2020yCat.1350....0G
I 11.631 [0.02] C 2005yCat.2263....0T
J 9.739 [0.021] C 2003yCat.2246....0C
H 9.220 [0.022] C 2003yCat.2246....0C
K 8.930 [0.019] C 2003yCat.2246....0C
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
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The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (16) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

UCAC4 423-088005 IGR J18410-0535 SWIFT J184100.0-053541 WISE J184100.40-053546.7
AX J1841.0-0536 2MASS J18410043-0535465 SWIFT J1840.9-0536 [KRL2007b] 332
AX J1841.0-0535 PBC J1841.0-0538 TIC 180645563 Gaia DR2 4256500538116700160
DENIS J184100.4-053546 SSTGLMC G026.7643-00.2387 USNO-A2.0 0825-12601262 Gaia DR3 4256500538116700160

References (137 between 1850 and 2024) (Total 137)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements


PM : 2    MK : 1   

   

Observing logs


XMM : 1   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : IGR J18410-0535

Link by name to the catalogue in VizieR :

UCAC4 423-088005 DENIS J184100.4-053546 2MASS J18410043-0535465 SSTGLMC G026.7643-00.2387 USNO-A2.0 0825-12601262
WISE J184100.40-053546.7 Gaia DR2 4256500538116700160 Gaia DR3 4256500538116700160

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