BlackCAT A Catalog of Stellar-Mass Black Holes in X-ray Binaries

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ID# 50

Swift J1357.2-0933

( Rau2011 )

RA     [J2000]     DEC

[]          []

13:57:16.82  -09:32:38.55

ℓ                      b

[deg]                            [deg]

328.7018426  +50.00430936

Year of discovery: 2011  
( Krimm2011a )

# of outbursts after discovery: 3

Basic data

Distance [kpc] ≥6 / >2.29 Charles2019 MataSanchez2015
Distance to the plane (z) [kpc] ≥4.6 / >1.8 Charles2019 MataSanchez2015
Orbital period (Porb) [h] 2.8±0.3 Corral-Santana2013 MataSanchez2015
Peak X-ray flux [erg s-1 cm-2]
Outburst magnitude (AB) r'=16.3±0.05 Rau2011
Quiescent magnitude (AB) r’=21.71±0.08 Shahbaz2013 MataSanchez2015 ArmasPadilla2014a
E(B-V) [mag] 0.037 Schlafly2011

Strictly speaking it is not a dynamical BH but there is either a robust mass function or mass determination suggesting the presence of a BH


Swift J1357.2-0933: Strictly speaking is not a dynamical BH because it lacks a detection of the secondary star but it has a robust mass function determination ( Corral-Santana2013 , MataSanchez2015 ), also based on the FWHM(Hα) scaling from Casares2015 coupled with Porb ( Corral-Santana2018 , Mata-Sanchez2015 ).
The distance is still uncertain (see Rau2011 , Shahbaz2013 , MataSanchez2015 , Charles2019 ).
It showed other outbursts in 2017 ( Drake2017 ), 2019 ( vanVelzen2019 ) and 2021 ( Bellm2021 )

Dynamical parameters

Orbital period [h] 2.8±0.3 Corral-Santana2013 MataSanchez2015
Star's spectral type M2-4V MataSanchez2015
Star's radial velocity amplitude (K2) [km/s] 967±49 MataSanchez2015
Mass function 'f(M1)' [M] 11±2.1 MataSanchez2015
BH mass (M1) [M] 12.4±3.6 MataSanchez2015 Casares2016
Mass ratio (q=M2/M1) ∼0.04 MataSanchez2015 Casares2016
Inclination angle (i) [deg] ∼90 Corral-Santana2013 MataSanchez2015
Rot. broadening (v sini) [km/s]

Optical/NIR magnitudes

Mag. Outburst (AB)
Mag. Quiescent (AB)
Shahbaz2013 MataSanchez2015 ArmasPadilla2014a
u'=23.12±0.04 g'=22.29±0.08
r’=21.71±0.08 i’=21.2±0.4
J=20.51±0.06 H=20.07±0.05 Ks=20.09±0.05
Aladin finding chart
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Default image: DSS2 Red
Swift J1357.2-0933 in Simbad

Pan-STARRS1 finding chart

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PS1 Finding chart PS1 Finding chart

Finding charts

Orientation: North up, East left. Object marked
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Finding chart reference: Corral-Santana2013

Finding chart
Finding chart
Finding chart

This research has made use of NASA's Astrophysics Data System (ADS) and the SIMBAD database operated at CDS (Strasbourg, France)
Please acknowledge the use of this catalogue in any published work you derive from it.

Last modified: 27 August 2021.