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Table 2.

Outburst properties.

Source # of Year Duration Bolometric peak flux References References
outbursts (days) (×10−8 erg cm−2 s−1) Light curves Spectral parameters
IGR J18245-2452 1 2014 23 1.15 [4] [4]
Swift J1749.4–2807 1 2010 11 1.52 [9] [9]
IGR J17591–2342 1 2018 50 1.50 [b] [32]
SAX J1748.9–2021 6 1998, 2001, 2005, 2010 10, 53, 52, 53 0.65, 1.30, 2.10, 4.20, [1], [1], [1], [m], [1], [1], [1], [25],
2015, 2017 58, 13 2.09, 1.73, 0.10 [m], [30] [27], [28]
XTE J1814–338 1 2003 53 0.88 [11] ( * )
IGR J17498–2921 1 2011 37 2.00 [8] [8]
IGR J17511–3057 2 2010, 2015 30, 25 0.40, 0.44 [20], [23] [20], [23]
IGR J00291+5934 4 2004, 2008, 2008, 2015 14, 9, 15, 25 0.29, 0.15, 0.11, 0.35 [5] (all) [5] (all)
SAX J1808.4–3658 7 1998, 2000, 2002, 2005 15, 14, 42, 28, 0.72, 0.12, 0.92, 0.63, [11], [11], [11], [11], [12], [38], [18], [10],
2008, 2011, 2015 21, 16, 25 3.31, 2.24, 0.94 [3], [m], [19] [3], [21], [6], [17]
IGR J1737.9-3747 3 2004, 2008, 2018 50, 15, 10 0.330, 0.690, 0.014 [18], [18], [b] [10], [10], [33]
HETE J1900.1–2455 1 2005 3784 2.40 [36] [22]
NGC 6440 X–2 10 2009, 2009, 2010, 2010, 3 (all) 0.088, 0.35, 0.053, 0.088 [15] (all) [13], [26]
2010, 2010, 2011, 2011, 0.035, 0.079, 0.079, 0.026,
2011, 2011 0.079, 0.026
Swift J1756.9–2508 3 2007, 2009, 2018 7, 15, 7 0.20, 0.26, 0.10 [15], [a], [2] [16], [24], [34]
IGR J16597–3704 1 2018 17 1.80 [b] [35]
MAXI J0911–655 1 2016 ( † ) 910 0.13 [31],[x] [31]
XTE J1751–305 4 2002, 2005, 2007, 2009 7, 3, 3, 3 0.81, 0.11, 0.14, 0.22 [29] (all) [29] (all)
XTE J1807–294 1 2004 100 0.49 [7] [7]
IGR J17062-6143 1 2006 ( † ) 4380 0.025 [37] [14]

Notes. List of the AMXPs discovered so far and their main properties. The bolometric peak flux is the unabsorbed flux in the range 0.1–300 keV and an intrinsic standard 10% error was attributed to each value. The unpublished light curves were extracted from the public archives of: [a] = All Sky Monitor (ASM) on board RXTE, [b] = BAT on board Swift, [m] = MAXI and [x] = XRT onboard Swift. The references are divided into refereed publications where the light curve of the relative outburst is displayed and publications where the spectral parameters of the source during the outburst were reported. ( † ) indicates that the outburst is still ongoing at the time of writing. ( * ) This work.

References. [1] = Altamirano et al. (2008), [2] = Bult et al. (2018), [3] = Cackett et al. (2009) [4] = De Falco et al. (2017b), [5] = De Falco et al. (2017a), [6] = Di Salvo et al. (2019), [7] = Falanga et al. (2005), [8] = Falanga et al. (2012), [9] = Ferrigno et al. (2011), [10] = Galloway et al. (2005b) [11] = Hartman et al. (2008), [12] = Heindl & Smith (1998), [13] = Heinke et al. (2010), [14] = Keek et al. (2017), [15] = Krimm et al. (2007), [16] = Linares et al. (2008), [17] = Markwardt et al. (2002a), [18] = Markwardt et al. (2008), [19] = Papitto et al. (2007), [20] = Papitto et al. (2010), [21] = Papitto et al. (2011b), [22] = Papitto et al. (2013b), [23] = Papitto et al. (2016), [24] = Patruno et al. (2009), [25] = Patruno et al. (2010), [26] = Patruno & D’Angelo (2013), [27] = Pintore et al. (2016) [28] = Pintore et al. (2018), [29] = Riggio et al. (2011), [30] = Sanna et al. (2016), [31] = Sanna et al. (2017a), [32] = Sanna et al. (2018a), [33] = Sanna et al. (2018c), [34] = Sanna et al. (2018d), [35] = Sanna et al. (2018b), [36] = Šimon (2018), [37] = Strohmayer et al. (2018b), [38] = Wijnands (2003).

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