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arXiv · 1509.05867

Spectral and Temporal Properties of MAXI J1836-194 during 2011 Outburst

A. Jana·D. Debnath·S. Mondal·S. K. Chakrabarti·A. A. Molla·D. Chatterjee
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Abstract

We study black hole candidate (BHC) MAXI~J1836-194 during its 2011 outburst with Two Component Advective Flow (TCAF) model using RXTE/PCU2 data in $2.5-25$~keV band. From spectral fit, accretion flow parameters such as Keplerian disk rate ($\dot{m_d}$), sub-Keplerian halo rate ($\dot{m_h}$), shock location ($X_{s}$) and compression ratio (R) are extracted directly. During the entire phase of the outburst, quasi-periodic oscillations (QPOs) are observed sporadically. From the nature of the variation of accretion rate ratio (ARR=$\dot{m_h}$ / $\dot{m_d}$) and QPOs, entire period of the outburst is classified in two spectral states, such as, hard (HS), hard-intermediate (HIMS). Unlike other transient BHCs, no signature of soft (SS) and soft-intermediate (SIMS) spectral states are observed during entire phase of the outburst

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A. Jana, D. Debnath, S. Mondal, S. K. Chakrabarti, A. A. Molla, D. Chatterjee. 2015-09-19. Spectral and Temporal Properties of MAXI J1836-194 during 2011 Outburst. https://arxiv.org/abs/1509.05867

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