J/ApJS/222/15 WATCHDOG: an all-sky database of Galactic BHXBs (Tetarenko+, 2016)

WATCHDOG: a comprehensive all-sky database of Galactic black hole X-ray binaries. Tetarenko B.E., Sivakoff G.R., Heinke C.O., Gladstone J.C. <Astrophys. J. Suppl. Ser., 222, 15 (2016)> =2016ApJS..222...15T 2016ApJS..222...15T (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, X-ray ; Stars, masses ; References Keywords: accretion, accretion disks; black hole physics; catalogs; stars: black holes; X-rays: binaries Abstract: With the advent of more sensitive all-sky instruments, the transient universe is being probed in greater depth than ever before. Taking advantage of available resources, we have established a comprehensive database of black hole (and black hole candidate) X-ray binary (BHXB) activity between 1996 and 2015 as revealed by all-sky instruments, scanning surveys, and select narrow-field X-ray instruments on board the INTErnational Gamma-Ray Astrophysics Laboratory (INTEGRAL), Monitor of All-Sky X-ray Image (MAXI), Rossi X-ray Timing Explorer (RXTE), and Swift telescopes; the Whole-sky Alberta Time-resolved Comprehensive black-Hole Database Of the Galaxy or WATCHDOG. Over the past two decades, we have detected 132 transient outbursts, tracked and classified behavior occurring in 47 transient and 10 persistently accreting BHs, and performed a statistical study on a number of outburst properties across the Galactic population. We find that outbursts undergone by BHXBs that do not reach the thermally dominant accretion state make up a substantial fraction (∼40%) of the Galactic transient BHXB outburst sample over the past ∼20 years. Our findings suggest that this "hard-only" behavior, observed in transient and persistently accreting BHXBs, is neither a rare nor recent phenomenon and may be indicative of an underlying physical process, relatively common among binary BHs, involving the mass-transfer rate onto the BH remaining at a low level rather than increasing as the outburst evolves. We discuss how the larger number of these "hard-only" outbursts and detected outbursts in general have significant implications for both the luminosity function and mass-transfer history of the Galactic BHXB population. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table8.dat 68 49 Activity of the transient (and long-term transient) Galactic black hole X-ray binary (BHXB) population from 1996-2015 table9.dat 124 56 Mass Transfer History of the Galactic BHXB population from 1996-2015 table12.dat 171 77 Galactic black hole (BH) and black hole candidate (BHC) Primary Source Information table13.dat 179 77 Galactic BH/BHC Binary Source Information table14.dat 131 240 Galactic BHXB Outburst History table15.dat 188 125 Luminosity data for Galactic BHs & BHCs between 1996-2014 table16.dat 72 792 State transitions occurring in the transient Galactic BHXB population between 1996-2015 table17.dat 72 1853 State transitions occurring in the persistent Galactic BHXB population between 1996-2015 refs.dat 132 1054 References -------------------------------------------------------------------------------- See also: B/cb : Cataclysmic Binaries, LMXBs, and related objects (Ritter+, 2014) V/123 : Catalog of Cataclysmic Variables (Downes+ 2001-2006) V/106 : Catalogue of X-ray binaries (Liu+ 2001) IX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999) J/A+A/587/A61 : BlackCAT, stellar-mass BH in X trans. (Corral-Santana+, 2016) J/ApJ/800/17 : Mass-transfer sequences in 16 Galactic LMXBs (Fragos+, 2015) J/MNRAS/437/3265 : Swift J1745-26 polarized jet (Curran+, 2014) J/ApJS/209/14 : The Swift/BAT hard X-ray transient monitor (Krimm+, 2013) J/MNRAS/428/2500 : GX 339-4 radio/X-ray flux correlation (Corbel+, 2013) J/ApJ/776/L31 : Energy feedback from XRB from z=0 to z=19.92 (Fragos+, 2013) J/AJ/143/130 : VIJH light curves of the X-Ray binary GX 339-4 (Buxton+, 2012) J/PASJ/63/S677 : MAXI/GSC catalog in high Galactic-latitude sky (Hiroi+, 2011) J/MNRAS/415/292 : MAXI J1659-152 2010 outburst analysis (Munoz-Darias+, 2011) J/ApJS/186/1 : The 4th IBIS/ISGRI soft gamma-ray survey catalog (Bird+, 2010) J/ApJ/699/453 : Determination of black hole masses (Shaposhnikov+, 2009) J/ApJ/698/1398 : H1743-322 2003 outburst (McClintock+, 2009) J/A+A/469/807 : Catalogue of Galactic low-mass X-ray binaries (Liu+, 2007) J/ApJS/170/175 : Third IBIS/ISGRI soft gamma-ray survey catalog (Bird+, 2007) J/A+A/455/1165 : Catalogue of Galactic high-mass X-ray binaries (Liu+, 2006) J/ApJ/641/410 : XMM and Chandra X-ray sources near 4U 1755-33 (Kaaret+, 2006) J/A+A/447/245 : Cyg X-1 Spectral Evolution 1999-2004 (Wilms+, 2006) J/A+A/411/L59 : INTEGRAL reference catalog (Ebisawa+, 2003) J/A+A/403/247 : Variability in the ROSAT All-Sky Survey (Fuhrmeister+, 2003) J/PAZh/26/355 : Catalog of X-ray sources from TTM/COMIS (Emelyanov+, 2000) J/A+AS/134/287 : EXMS catalog (Reynolds+ 1999) J/A+AS/132/341 : ROSAT GPS optical identification (Motch+ 1998) Byte-by-byte Description of file: table8.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 22 A22 --- Name Source Name used in this work (1) 24- 25 I2 --- SOut [0/10] Number of successful outbursts detected (2) 27- 28 I2 --- IOut [0/19] Number of indeterminate outbursts detected (3) 30 I1 --- HOut [0/5] Number of hard-only outbursts detected (4) 32- 33 I2 --- TOut [1/24] Total number of outbursts (5) 35- 38 I4 d tQs [0/7054] Days spent in quiescence (6) 40- 43 I4 d tOut [14/7068] Days spent in outbursts (6) 45 A1 --- l_<tRec> Limit flag on <tRec> (7) 46- 49 I4 d <tRec> [154/7068] Median outburst recurrence time 51- 56 F6.2 % dc [0.2/100] Transient duty cycle 58- 68 A11 --- States States achieved during outbursts (8) -------------------------------------------------------------------------------- Note (1): The sources not included in this table because we have not detected at least one outburst in the time period between 1996 January 6 - 2015 May 14, 2015 are: GROJ0422+32, 1A0620-00, GRS1009-45, GS1124-684, IGRJ11321-5311, 1A1524-62, H1705-250, XTEJ1719-291, GRS1716-249, GRS1730-312, KS1732-273, 1A1742-289, CXOGC J174540.0-290031, EXO1846-031, IGRJ18539+0727, XTEJ1901+014, GS2000+251, GS2023+338, MWC 656. Note (2): And classified by the algorithm, where successful corresponds to a full turtlehead (i.e., state-transition) pattern through all accretion states. Note (3): And classified by the algorithm, where indeterminate indicates that the outburst was detected by the algorithm but that there was not enough data available to confidently determine whether or not the source reached the soft state during the outburst. Note (4): And classified by the algorithm, where hard-only corresponds to outbursts in which a source never reached the thermally dominant accretion states. Note (5): Detected by the algorithm. Note (6): Calculated in the time period 50088.0-57156.0 (1996 January 6 - 2015 May 14), starting when our data coverage began with RXTE. Note (7): A lower limit is given when only one outburst has been detected. Note (8): States as follows: N/A = source where we do not have enough data to determine the state; HCS = hard comptonized state; SDS = soft disc dominated state; IMS = intermediate state. -------------------------------------------------------------------------------- Byte-by-byte Description of file: table9.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 22 A22 --- Name Source name used in this work 24 A1 --- Type Source type (T = transient or P = persistent) 26- 35 F10.5 10-29W <Lbol>t [0.0008/1290] Time averaged bolometric luminosity (1) 37- 45 F9.5 10-29W E_<Lbol>t Upper bound error in <Lbol>t 47- 55 F9.5 10-29W e_<Lbol>t Lower bound error in <Lbol>t 57 A1 --- l_<Mdot>t Limit flag on <Mdot>t (2) 58- 67 F10.6 Msun/yr <Mdot>t [0.0001/229] Average mass-transfer rate (1) 69- 77 F9.6 Msun/yr E_<Mdot>t Upper bound error in <Mdot>t 79- 87 F9.6 Msun/yr e_<Mdot>t Lower bound error in <Mdot>t 89-124 A36 --- OutType Prominent outburst behaviour (3) -------------------------------------------------------------------------------- Note (1): Calculated between 1996 January 6 - 2015 May 14. Note (2): If a transient source has only one detected outburst, the Mdot is considered an upper limit (indicated by <). Note (3): In the case of the transient sources, the outburst type column indicates whether the source has undergone only "successful", only "hard-only", or a combination of "successful" and "hard-only" outbursts over the last 19 years, where "successful" corresponds to a full turtlehead (i.e., state transition) pattern through all accretion states and "hard-only" corresponds to outbursts in which a source never reached the thermally dominant accretion states. In the case of persistent sources, it indicates one of the following four long-term behavioural characteristics: (i) mainly HCS behaviour - the source spends >70% of the time it was in an X-ray bright state in the hard state and routinely undergoes attempted hard-soft transitions (i.e., "incomplete" state transitions), in which the source only reaches as soft as the intermediate states, (ii) mainly SDS behaviour - the source spends >70% of the time it was in an X-ray bright state in the thermally dominant soft state and routinely undergoes a combination of attempted hard-soft and soft-hard ("incomplete") transitions only reaching as soft/hard as the intermediate states, (iii) mainly IMS behaviour - the source spends >70% of the time it was in an X-ray bright state in the intermediate states and routinely undergoes attempted intermediate-hard transitions; and (iv) anomalous/high luminosity behaviour: while the source appears to spend the majority of its time repeatedly undergoing the basic "turtlehead" (i.e., state transition) pattern of behaviour, it routinely shows peak luminosities at high fractions of Eddington, suggesting the presence of a high luminosity state such as an SPL state or perhaps a more complicated situation (e.g., "heartbeat" states of GRS 1915+105). -------------------------------------------------------------------------------- Byte-by-byte Description of file: table12.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 22 A22 --- Name Source name exclusively used in this work 24- 62 A39 --- OName Other source name(s) (1) 64 A1 --- Class Black Hole class (2) 66- 76 A11 --- Type Type (3) 78- 79 I2 h RAh ? Hour of Right Ascension (J2000) 81- 82 I2 min RAm ? Minute of Right Ascension (J2000) 84- 89 F6.3 s RAs ? Second of Right Ascension (J2000) 92- 99 E8.2 arcsec e_RAs ? Error in RAs (4) 101 A1 --- DE- Sign of the Declination (J2000) 102-103 I2 deg DEd ? Degree of Declination (J2000) 105-106 I2 arcmin DEm ? Arcminute of Declination (J2000) 108-113 F6.3 arcsec DEs ? Arcsecond of Declination (J2000) 115-123 F9.5 arcsec e_DEs [0.00005/318]? Error in DEs (4) 125-128 I4 yr Obs.Y [1966/2014]? Year source was discovered 130-134 A5 --- Tel X-ray telescope discovery (5) 136-137 I2 --- N [0/26]? Total number of outbursts detected (6) 139-171 A33 --- Ref Reference list (see refs.dat file) -------------------------------------------------------------------------------- Note (1): Recognized by the SIMBAD Database or the Astrophysics Data System (ADS). Note (2): Class as follows: A = confirmed BH; B = strong black hole candidate (BHC); C = likely X-ray binary (XRB), weak BHC. Note (3): Type as follows: BH = Confirmed black hole; BHC = black hole candidate; T = transient; P = persistent; R = radio detection; J = confirmed jet; J? = possible jet; W = accretion disk wind. Note (4): If the original reference is quoted as (i) an error radius, then errors in RA and DEC are quoted as this radius, or (ii) an error ellipse, an equal side error box, calculated from the projection of the semi-major axis onto the xy plane. Note (5): X-ray telescope discovery as follows: Ae = Proportional Counters aboard the Aerobee 150 Sounding Rocket; AG = AGILE Satellite; Ar = Ariel V; Be = BeppoSAX; CH = Chandra; CG = CGRO; E = Einstein Observatory; EX = EXOSAT; G = GRANAT; GS = GINGA; H = HEAO 1; I = INTEGRAL; Mx = MAXI; M = MIR Space Station; O7 = OSO 7; Rx = RXTE; Ro = ROSAT; S2 = Spacelab 2 Telescope; Sw = Swift; U = UHURU; V = VELA 5B; X = XMM-Newton. Note (6): In each source, including those referenced in the literature and the results of our algorithm. -------------------------------------------------------------------------------- Byte-by-byte Description of file: table13.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 22 A22 --- Name Source Name used in this work 24- 28 F5.2 kpc Dist1 [1/50] Distance to source or lower range of distance (1) 30- 33 F4.1 kpc B_Dist ? Upper range of distance to source 35- 38 F4.2 kpc e_Dist ? The 1σ confidence level error in Dist 40- 42 F3.1 kpc e_Dist2 ? A second value for e_Dist 44- 48 F5.2 Msun mBH1 [2.4/15]? Mass of BH or lower range of Mass (1) 50- 54 F5.2 Msun B_mBH ? Upper range of Mass of BH (1) 56 A1 --- lemBH Limit flag on e_mBH 58- 61 F4.2 Msun e_mBH ? The 1σ confidence level error in mBH 63- 65 F3.1 Msun e_mBH2 ? A second value for e_mBH 67- 71 F5.3 Msun f(M) [0.2/9.5]? Mass function 73- 77 F5.3 Msun e_f(M) ? The 1σ confidence level error in f(M) 79- 81 F3.1 Msun e_f(M)2 ? A second value of f(M) 83 A1 --- l_i Limit flag on inclination 85- 89 F5.2 deg i [4/81]? Inclination or lower range of Inclination 91- 94 F4.1 deg B_i ? Upper range of Inclination 96- 99 F4.2 deg e_i ? The 1σ confidence level error in i 101-104 F4.1 deg e_i2 ? A second value of e_i 106 A1 --- l_q Limit flag on q 108-112 F5.3 --- q [0/1.3]? Mass ratio; m2/mBH or lower range of q 114-118 F5.3 --- B_q ? Upper range of mass ratio q 120-124 F5.3 --- e_q ? The 1σ confidence level error in q 126-129 F4.2 --- e_q2 ? A second value of e_q 131-145 A15 --- SpT Spectral type of counterpart 147 A1 --- l_Porb Limit flag on Porb 149-156 F8.3 h Porb [2.4/1449]? Orbital period 158-179 A22 --- Ref Reference list (see refs.dat file) -------------------------------------------------------------------------------- Note (1): When no acceptable estimates for distance or BH mass are available, 5±3kpc is assumed for distance and the BH mass is sampled from the Ozel mass distribution (Ozel et al. 2010ApJ...725.1918O 2010ApJ...725.1918O). -------------------------------------------------------------------------------- Byte-by-byte Description of file: table14.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 22 A22 --- Name Source Name used in this work 24- 30 F7.1 d tBeg [50134/57036]? MJD begin time of outburst (1) 32- 38 F7.1 d tEnd [50216/57168]? MJD end time of outburst (1) 40- 49 A10 --- ID Unique outburst identification code 51 A1 --- LClass Literature spectral/timing outburst classification (2) 53 A1 --- AClass Algorithm outburst classification (2) 55- 97 A43 --- Inst List of instruments that have detected the outburst (3) 99-131 A33 --- Ref List of references (see refs.dat file) -------------------------------------------------------------------------------- Note (1): Calculated by the algorithm. Note (2): Successful corresponds to a full turtlehead (i.e., state-transition) pattern through all accretion states, indeterminate indicates that the outburst was detected by the algorithm but that there was not enough data available to confidently determine whether or not the source reached the soft state during the outburst, and hard-only corresponds to outbursts in which a source never reached the thermally dominant accretion states. Classification as follows: H = hard-only; S = successful; I = indetermined. Note (3): Instrument as follows: A-2 = Cosmic X-ray Experiment (CXE) involving six separate proportional counters aboard the High Energy Astronomy Observatory (HEAO) 1; A-3 = Modulation Colliamtor (MC) aboard HEAO 1; A-4 = Hard X-Ray/Low Energy Gamma Ray Experiment aboard HEAO 1; ANS = medium energy detector aboard the Astronomical Netherlands Satellite (ANS); ART-P = ART-P telescope aboard GRANAT; ASM = All-Sky Monitor aboard Rossi X-Ray Timing Explorer (RXTE); Ariel V/ASM = ASM aboard Ariel V Satellite; ArielVI = two Proportional Counters aboard the Ariel VI Satellite; BAT = Burst Alert Telescope aboard Swift X-Ray Observatory; BATSE = Burst And Transient Source Experiment aboard Compton Gamma-Ray Observatory (CGRO); BBXRT = Broad-Band X-ray Telescope; Chandra = Chandra X-Ray Observatory; CMA = Channel Electron Multiplier detector aboard European X-Ray Observatory Satellite (EXOSAT); EPIC = European Photon Imaging Camera aboard XMM-Newton; GBM = Gamma-Ray Burst Monitor aboard the Fermi Gamma-Ray Space Telescope; GCXSE = Cosmic X-Ray Spectroscopy Experiment aboard Orbiting Solar Observatory (OSO) 8; GINGA/ASM = ASM aboard GINGA satellite; GIS = Gas Imaging Spectrometer aboard Advanced Satellite for Cosmology and Astrophysics (ASCA); GSC = Gas-Slit Camera aboard Monitor of All-Sky Image (MAXI) telescope; GSO = GSO scintillators aboard Suzaku; GSPC = Gas Scintillation Proportional Counter aboard EXOSAT; HAKUCHO = X-Ray detectors aboard the HAKUCHO (CORSA-5b) Satellite; HCO = Photographic Plates Collection at the Harvard College Observatory HEXE = High Energy X-Ray Experiment aboard the MIr-Kvant Observatory; HEXTE = High Energy X-Ray Timing Experiment aboard RXTE; HRI = High Resolution Imager aboard the Einstein Observatory; HSEM = High Speed Event Monitor aboard the Small Astronomy Satellite (SAS) 3; HRGRS = High Resolution Gamma-Ray Spectrometer aboard HEAO 3; HXD = Hard X-Ray Detector aboard Suzaku; IPC = Image Proportional Counter aboard the Einstein Observatory; ISGRI = Integral Soft Gamma-Ray Imager aboard International Gamma-Ray Astrophysical Observatory (INTEGRAL); IXAE = 3 Proportional Counter's and 1 Sky Monintor (XSM) aboard the Indian X-ray Astronomy Experiment (IXAE); JEM-X = Two units aboard INTEGRAL; LAC = Large Area Proportional Counter aboard GINGA Satellite; LASS = Large Area Sky Survey Experiment (A-2) aboard HEAO 1; LE = Low Energy Instruments aboard EXOSAT; LECS = Low Energy Concentrator Spectrometer on BeppoSAX; ME = Medium Energy Proportional Counter aboard (EXOSAT); MECS = Medium Energy Concentrator Spectrometer on BeppoSAX; MIT = MIT Cosmic X-Ray Experiment aboard Orbiting Solar Observatory 7 (OSO 7); MPC = Monitor Proportional Counter aboard the Einstein Observatory; MSSL = Mullard Space Science Laboratory X-ray detector aboard the Copernicus Satellite; NFI = Narrow field Instruments aboard BeppoSAX; NuSTAR = Nuclear Spectroscopic Telescope Array; OSSE = Oriented Scintillation Spectrometer Experiment aboard CGRO; PCA = Proportional counter array aboard RXTE; PCS = High resolution proportional counter array aboard the Ariel V Satellite; PDS = Phoswich Detector System; PSPC = Position Sensitive Proportional Counter aboard ROentgen SATellite (ROSAT); RGS = Reflection Grating Spectrometer aboard XMM-Newton; ROSAT HRI = The high Resolution IMages aboard ROSAT; SIS = Solid-state Imaging Spectrometer aboard ASCA; ROSAT/XRT = X-ray Telescope aboard ROSAT; SAI = photographic plates at the Sternberg Astronomical Institute; SIGMA = hard X-ray and low-energy gamma-ray telescope aboard GRANAT; SO = Photographic plates at the Sonnenberg Observatory; SpaceLab2 = XRT aboard Space Lab 2 Satellite; SPI = Spectrometer for INTEGRAL; RMC = Rotation Modulation Collimator aboard the Ariel V Satellite; Skylark = X-Ray detectors aboard the Skylark rockets; SSI = Sky Survey Instrument aboard Ariel V Satellite; SSS = Solid State Spectrometer aboard the Einstein Observatory; Tenma = Proportional Counters aboard the Tenma (ASTRO B) Satellite; TTM = a coded mask imaging spectrometer / wide-angle camera aboard the MIr-Kvant Observatory; UHURU = two proportional counters aboard UHURU Satellite; VELA5B = ASM aboard VELA 5B Satellite; WATCH = ASM aboard GRANAT Satellite; WFC = Wide Field Camera aboard BeppoSAX; XC = Scintillation X-ray Detector aboard Vela 5B Satellite; XIS = X-ray Imaging Spectrometer aboard Suzaku; XRT = X-Ray telescope aboard Swift. -------------------------------------------------------------------------------- Byte-by-byte Description of file: table15.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 22 A22 --- Name Source name used in this work 24- 33 A10 --- ID Unique outburst identification code (1) 35- 38 I4 d tDur [21/7069] Duration of the outburst 40- 48 F9.3 10+36J totalE [0.08/53460] Total outburst energy released; 1e43erg 50- 56 F7.3 10+36J e_totalE Error in totalE 58- 66 F9.4 10+31W Ltot [0.003/4300] Peak bolometric outburst luminosity; 1e38erg/s 68- 76 F9.4 10+31W E_Ltot Upper error bound in Ltot 78- 86 F9.4 10+31W e_Ltot Lower error bound in Ltot 88- 96 F9.5 --- LEdd [0.0003/290] Peak bolometric outburst luminosity (2) 98-106 F9.5 --- E_LEdd Upper error bound in LEdd 108-116 F9.5 --- e_LEdd Lower error bound in LEdd 118-125 F8.4 10+31W LHCS [0.002/101] Peak bolometric hard comptonized state (HCS) state luminosity (3) 127-134 F8.4 10+31W E_LHCS Upper error bound in LHCS 136-142 F7.4 10+31W e_LHCS ? Lower error bound in LHCS 144-151 F8.3 10+31W LSDS [0.04/4300]? Peak bolometric soft disc dominated state (SDS) state luminosity (3) 153-160 F8.3 10+31W E_LSDS ? Upper error bound in LSDS 162-169 F8.3 10+31W e_LSDS ? Lower error bound in LSDS 171-174 I4 d tHCS [0/5409] Total time spent in the HCS 176-179 I4 d tSDS [0/5392] Total time spent in the SDS 181-184 I4 d tIMS [0/3578]? Total time spent in HCS to SDS transition 186-188 I3 d tUND [0/544]? Total time not sufficient data to determine state -------------------------------------------------------------------------------- Note (1): A "*" beside the outburst year marks those outbursts which contain day in which our spectral modelling algorithm has failed. As such the peak luminosities quoted in these cases may not be accurate. Note (2): Relative to the Eddington luminosity. Note (3): In units of 1e+38erg/s. A LHCS blank and tHCS>0 or LSDS is blank and tSDS>0 indicates the minimum requirement of two different bands (one hard and one soft) for the spectral modelling process has not been met. -------------------------------------------------------------------------------- Byte-by-byte Description of file: table1[67].dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 22 A22 --- Name Source name used in this work 24- 32 A9 --- ID Unique outburst identification code 34- 43 A10 --- Stage Outburst stage (1) 45- 55 A11 --- State Accretion state (2) 57- 61 I5 d tBeg [50087/57154]? MJD start time of an outburst 63- 67 I5 d tEnd [50092/57173]? MJD end time of an outburst 69- 72 I4 d tDur [0/4088]? Duration of outburst stage (3) -------------------------------------------------------------------------------- Note (1): Stage as follows: Rise = before outburst peak; Decline = after outburst peak; Transition = state transition. Note (2): The - symbol is used to indicate situations where (i) only one energy band is available during the time period, which is adequate for outburst detection but not for classification via hardness ratio, or (ii) no data is available during the particular time period. HCS = hard comptonized state; SDS = soft disc dominated state; IMS = intermediate state. Note (3): As we only have daily time resolution, HCS to SDS transitions taking less than 1 day to complete are not included here. -------------------------------------------------------------------------------- Byte-by-byte Description of file: refs.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 4 A4 --- Ref Reference code 6- 24 A19 --- BibCode Bibcode 26- 50 A25 --- Auth First author's name(s) 52-132 A81 --- Comm Comment -------------------------------------------------------------------------------- History: From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 11-Mar-2016
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