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20052022
most citedCygnus X-1 contains a 21-solar mass black hole -- implications for massive star winds

285 citations · 661 across the 14 of their papers we have counts for

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Showing astro-ph.SRShow all

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astro-ph.SR2022★ 16 cited

The Donor of the Black-Hole X-Ray Binary MAXI J1820+070

Joanna Mikolajewska, Andrzej A. Zdziarski, Janusz Ziolkowski +2

We estimate the parameters of the donor of the accreting black-hole binary MAXI J1820+070. The measured values of the binary period, rotational and radial velocities and constraint…

astro-ph.SR2021

A comment on the properties of the matter flow through the first Langrangian point

Janusz Ziolkowski, Andrzej A. Zdziarski

We analyse properties of the mass outflow from the Roche-lobe filling component of a semi-detached binary system. We follow the approaches published by Paczyński \& Sienkiewicz and…

astro-ph.SR2020★ 4 cited

The nature of the Schoenberg-Chandrasekhar limit

Janusz Ziolkowski, Andrzej A. Zdziarski

We present a comprehensive description of the Schönberg--Chandrasekhar (S--C) transition, which is an acceleration of the stellar evolution from the nuclear to the thermal time sca…

astro-ph.SR2015★ 1 cited

On the masses of the components of the V1387 Aql/GRS1915+105 binary system

Janusz Ziolkowski

V1387 Aql (the optical companion to the microquasar GRS1915+105) is a low mass giant. Such star consists of a degenerate, nearly isothermal helium core and a hydrogen rich envelope…

astro-ph.SR2014★ 49 cited

Masses of the components of the HDE 226868/Cyg X-1 binary system

Janusz Ziolkowski

Recent determination of the distance to HDE 226868/Cyg X-1 binary system (Reid et al., 2011) and more precise determination of the effective temperature of HDE 226868 (Caballero- N…

astro-ph.SR2011

On the apparent lack of be x-ray binaries with black holes in the galaxy and in the Magellanic clouds

Janusz Ziolkowski, Krzysztof Belczynski

In the Galaxy and in the Magellanic Clouds there are 170 Be X-ray binaries known to-date. Out of those, 111 host a neutron star, and for the reminder the nature of a companion is n…