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Table 1.

AMXPs discovered so far and their main properties.

Source Porb Ps fX M2, min Year of Ref.
(h) (ms) (M) (M) discovery
Aql X-1 18.95 1.7 1.4 × 10−2xs 0.56 2008 [6], [14]
IGR J18245–2452 11.03 3.9 2.3 × 10−3 0.17 2013 [17]
Swift J1749.4–2807 8.82 1.9 5.5 × 10−2 0.59 2010 [3]
IGR J17591–2342 8.80 1.9 1.5 × 10−2 0.42 2018 [23]
SAX J1748.9–2021 8.77 2.3 4.8 × 10−3 0.10 2008 [1]
XSS J12270–4859 6.91 1.7 3.9 × 10−3 0.27 2015 [18]
PSR J1023+0038 4.75 1.7 1.1 × 10−3 0.20 2009 [4], [7]
XTE J1814–338 4.27 3.2 2.0 × 10−3 0.17 2003 [13]
IGR J17498–2921 3.84 2.5 2.0 × 10−3 0.17 2011 [16]
IGR J17511–3057 3.47 4.1 1.1 × 10−3 0.13 2010 [15]
IGR J00291+5934 2.46 1.7 2.8 × 10−3 0.039 2005 [9]
SAX J1808.4–3658 2.01 2.5 3.8 × 10−5 0.043 1998 [25]
IGR J1737.9–3747 1.88 2.1 8.5 × 10−5 0.056 2018 [21]
HETE J1900.1–2455 1.39 2.7 2.0 × 10−6 0.016 2006 [10]
NGC 6440 X-2 0.95 4.8 1.6 × 10−7 0.00067 2010 [2]
Swift J1756.9–2508 0.91 5.5 1.6 × 10−7 0.0070 2007 [11], [22]
IGR J16597–3704 0.77 9.5 1.2 × 10−7 0.0060 2017 [20]
MAXI J0911–655 0.74 2.9 6.2 × 10−6 0.024 2016 [19]
XTE J0929–314 0.73 5.4 2.9 × 10−7 0.0083 2002 [8]
XTE J1751–305 0.71 2.3 1.3 × 10−6 0.014 2002 [12]
XTE J1807–294 0.67 5.3 1.5 × 10−7 0.0066 2003 [5]
IGR J17062–6143 0.64 6.1 9.1 × 10−8 0.00060 2017 [24]

Notes. In the table Porb is the orbital period, Ps is the spin period of the pulsar, fX is the mass function, and M2, min is the minimum mass for the companion, evaluated from fX for an inclination of 90°.

References. [1] = Altamirano et al. (2008), [2] = Altamirano et al. (2010a), [3] = Altamirano et al. (2011), [4] = Archibald et al. (2009), [5] = Campana et al. (2003), [6] = Casella et al. (2008), [7] = Coti Zelati et al. (2014), [8] = Galloway et al. (2002), [9] = Galloway et al. (2005a), [10] = Kaaret et al. (2006), [11] = Krimm et al. (2007), [12] = Markwardt et al. (2002b), [13] = Markwardt et al. (2003), [14] = Mata Sánchez et al. (2017), [15] = Papitto et al. (2010), [16] = Papitto et al. (2011a), [17] = Papitto et al. (2013a), [18] = Roy et al. (2015), [19] = Sanna et al. (2017a), [20] = Sanna et al. (2018b), [21] = Sanna et al. (2018c), [22] = Sanna et al. (2018d), [23] = Sanna et al. (2018a), [24] = Strohmayer et al. (2018b), [25] = Wijnands & van der Klis (1998).

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