NICER observations of the 2018 outburst of the black hole candidate MAXI J1727-203

Kevin Alabarta; Diego Altamirano; Ronald Remillard; Mariano Mendez

NICER observations of the 2018 outburst of the black hole candidate MAXI J1727-203

Kevin Alabarta, Diego Altamirano, Ronald Remillard, Mariano Mendez

Astronomy

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Abstract

MAXI J1727-203 is a new transient discovered in June, 5 2018, and due to its spectral properties at the beginning of the outburst it was identified as a black hole candidate. MAXI J1727 has been monitored with Neutron Star Interior Composition Explorer (NICER) on almost daily basis since the beginning of the outburst. In this talk we will present the spectral and timing analysis of ~4 months of observations (more than 75 observations). Preliminary results suggest a significant detection of a cool disk (~0.2 keV) and a strong hard component at the end of the outburst. We will show that MAXI J1727 might have undergone the soft-to-hard transition at 0.5-10 keV luminosities ~ 1e36 erg/sec. This source is the the 3rd system in which we have detected the soft-to-hard transition at such low X-ray luminosities.

Original language	English
Journal	Bulletin of the American Astronomical Society
Publication status	Published - 1-Jan-2019
Event	233 Meeting American Astronomical Society - Seattle, WA, United States Duration: 6-Jan-2019 → 10-Jan-2019

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233rd AAS Seattle, WA – January, 2019 Meeting AbstractsFinal publisher's version, 5.19 MBLicence: Unspecified

http://adsabs.harvard.edu/abs/2019AAS...23313304A

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@article{c9ea71dd0dc6449f99db68162da4a80b,

title = "NICER observations of the 2018 outburst of the black hole candidate MAXI J1727-203",

abstract = " MAXI J1727-203 is a new transient discovered in June, 5 2018, and due to its spectral properties at the beginning of the outburst it was identified as a black hole candidate. MAXI J1727 has been monitored with Neutron Star Interior Composition Explorer (NICER) on almost daily basis since the beginning of the outburst. In this talk we will present the spectral and timing analysis of ~4 months of observations (more than 75 observations). Preliminary results suggest a significant detection of a cool disk (~0.2 keV) and a strong hard component at the end of the outburst. We will show that MAXI J1727 might have undergone the soft-to-hard transition at 0.5-10 keV luminosities ~ 1e36 erg/sec. This source is the the 3rd system in which we have detected the soft-to-hard transition at such low X-ray luminosities.",

author = "Kevin Alabarta and Diego Altamirano and Ronald Remillard and Mariano Mendez",

year = "2019",

month = jan,

day = "1",

language = "English",

journal = "Bulletin of the American Astronomical Society",

issn = "0002-7537",

publisher = "American Astronomical Society",

note = "233 Meeting American Astronomical Society ; Conference date: 06-01-2019 Through 10-01-2019",

}

TY - JOUR

T1 - NICER observations of the 2018 outburst of the black hole candidate MAXI J1727-203

AU - Alabarta, Kevin

AU - Altamirano, Diego

AU - Remillard, Ronald

AU - Mendez, Mariano

PY - 2019/1/1

Y1 - 2019/1/1

N2 - MAXI J1727-203 is a new transient discovered in June, 5 2018, and due to its spectral properties at the beginning of the outburst it was identified as a black hole candidate. MAXI J1727 has been monitored with Neutron Star Interior Composition Explorer (NICER) on almost daily basis since the beginning of the outburst. In this talk we will present the spectral and timing analysis of ~4 months of observations (more than 75 observations). Preliminary results suggest a significant detection of a cool disk (~0.2 keV) and a strong hard component at the end of the outburst. We will show that MAXI J1727 might have undergone the soft-to-hard transition at 0.5-10 keV luminosities ~ 1e36 erg/sec. This source is the the 3rd system in which we have detected the soft-to-hard transition at such low X-ray luminosities.

AB - MAXI J1727-203 is a new transient discovered in June, 5 2018, and due to its spectral properties at the beginning of the outburst it was identified as a black hole candidate. MAXI J1727 has been monitored with Neutron Star Interior Composition Explorer (NICER) on almost daily basis since the beginning of the outburst. In this talk we will present the spectral and timing analysis of ~4 months of observations (more than 75 observations). Preliminary results suggest a significant detection of a cool disk (~0.2 keV) and a strong hard component at the end of the outburst. We will show that MAXI J1727 might have undergone the soft-to-hard transition at 0.5-10 keV luminosities ~ 1e36 erg/sec. This source is the the 3rd system in which we have detected the soft-to-hard transition at such low X-ray luminosities.

M3 - Meeting Abstract

SN - 0002-7537

JO - Bulletin of the American Astronomical Society

JF - Bulletin of the American Astronomical Society

T2 - 233 Meeting American Astronomical Society

Y2 - 6 January 2019 through 10 January 2019

ER -

NICER observations of the 2018 outburst of the black hole candidate MAXI J1727-203

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