Detection of Very Low-Frequency Quasi-Periodic Oscillations in the 2015 Outburst of V404 Cygni

D. Huppenkothen; G. Younes; A. Ingram; C. Kouveliotou; E. Göğüş; M. Bachetti; C. Sánchez-Fernández; Jérôme Chenevez; S. Motta; M. van der Klis; J. Granot; N. Gehrels; E. Kuulkers; J. A. Tomsick; D. J. Walton

doi:10.3847/1538-4357/834/1/90

Detection of Very Low-Frequency Quasi-Periodic Oscillations in the 2015 Outburst of V404 Cygni

D. Huppenkothen, G. Younes, A. Ingram, C. Kouveliotou, E. Göğüş, M. Bachetti, C. Sánchez-Fernández, Jérôme Chenevez, S. Motta, M. van der Klis, J. Granot, N. Gehrels, E. Kuulkers, J. A. Tomsick, D. J. Walton

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

In June 2015, the black hole X-ray binary (BHXRB) V404 Cygni went into outburst for the first time since 1989. Here, we present a comprehensive search for quasi-periodic oscillations (QPOs) of V404 Cygni during its recent outburst, utilizing data from six instruments on board five different X-ray missions: Swift/XRT, Fermi/GBM, Chandra/ACIS, INTEGRAL's IBIS/ISGRI and JEM-X, and NuSTAR. We report the detection of a QPO at 18 mHz simultaneously with both Fermi/GBM and Swift/XRT, another example of a rare but slowly growing new class of mHz-QPOs in BHXRBs linked to sources with a high orbital inclination. Additionally, we find a duo of QPOs in a Chandra/ACIS observation at 73 mHz and 1.03 Hz, as well as a QPO at 136 mHz in a single Swift/XRT observation that can be interpreted as standard Type-C QPOs. Aside from the detected QPOs, there is significant structure in the broadband power, with a strong feature observable in the Chandra observations between 0.1 and 1 Hz. We discuss our results in the context of current models for QPO formation.

Original language	English
Journal	The Astrophysical Journal
Volume	834
Issue number	90
Number of pages	17
ISSN	0004-637x
DOIs	https://doi.org/10.3847/1538-4357/834/1/90
Publication status	Published - 2016

Keywords

Methods: statistical
Relativistic processes
Stars: black holes
X-rays: binaries

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Huppenkothen 2017 ApJ 834 90Final published version, 1.73 MB

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Huppenkothen, D., Younes, G., Ingram, A., Kouveliotou, C., Göğüş, E., Bachetti, M., Sánchez-Fernández, C., Chenevez, J., Motta, S., van der Klis, M., Granot, J., Gehrels, N., Kuulkers, E., Tomsick, J. A., & Walton, D. J. (2016). Detection of Very Low-Frequency Quasi-Periodic Oscillations in the 2015 Outburst of V404 Cygni. The Astrophysical Journal, 834(90). https://doi.org/10.3847/1538-4357/834/1/90

Huppenkothen, D. ; Younes, G. ; Ingram, A. ; Kouveliotou, C. ; Göğüş, E. ; Bachetti, M. ; Sánchez-Fernández, C. ; Chenevez, Jérôme ; Motta, S. ; van der Klis, M. ; Granot, J. ; Gehrels, N. ; Kuulkers, E. ; Tomsick, J. A. ; Walton, D. J. / Detection of Very Low-Frequency Quasi-Periodic Oscillations in the 2015 Outburst of V404 Cygni. In: The Astrophysical Journal. 2016 ; Vol. 834, No. 90.

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title = "Detection of Very Low-Frequency Quasi-Periodic Oscillations in the 2015 Outburst of V404 Cygni",

abstract = "In June 2015, the black hole X-ray binary (BHXRB) V404 Cygni went into outburst for the first time since 1989. Here, we present a comprehensive search for quasi-periodic oscillations (QPOs) of V404 Cygni during its recent outburst, utilizing data from six instruments on board five different X-ray missions: Swift/XRT, Fermi/GBM, Chandra/ACIS, INTEGRAL's IBIS/ISGRI and JEM-X, and NuSTAR. We report the detection of a QPO at 18 mHz simultaneously with both Fermi/GBM and Swift/XRT, another example of a rare but slowly growing new class of mHz-QPOs in BHXRBs linked to sources with a high orbital inclination. Additionally, we find a duo of QPOs in a Chandra/ACIS observation at 73 mHz and 1.03 Hz, as well as a QPO at 136 mHz in a single Swift/XRT observation that can be interpreted as standard Type-C QPOs. Aside from the detected QPOs, there is significant structure in the broadband power, with a strong feature observable in the Chandra observations between 0.1 and 1 Hz. We discuss our results in the context of current models for QPO formation.",

keywords = "Methods: statistical, Relativistic processes, Stars: black holes, X-rays: binaries",

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year = "2016",

doi = "10.3847/1538-4357/834/1/90",

language = "English",

volume = "834",

journal = "Astrophysical Journal",

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Huppenkothen, D, Younes, G, Ingram, A, Kouveliotou, C, Göğüş, E, Bachetti, M, Sánchez-Fernández, C, Chenevez, J, Motta, S, van der Klis, M, Granot, J, Gehrels, N, Kuulkers, E, Tomsick, JA & Walton, DJ 2016, 'Detection of Very Low-Frequency Quasi-Periodic Oscillations in the 2015 Outburst of V404 Cygni', The Astrophysical Journal, vol. 834, no. 90. https://doi.org/10.3847/1538-4357/834/1/90

Detection of Very Low-Frequency Quasi-Periodic Oscillations in the 2015 Outburst of V404 Cygni. / Huppenkothen, D.; Younes, G.; Ingram, A.; Kouveliotou, C.; Göğüş, E.; Bachetti, M.; Sánchez-Fernández, C.; Chenevez, Jérôme; Motta, S.; van der Klis, M.; Granot, J.; Gehrels, N.; Kuulkers, E.; Tomsick, J. A.; Walton, D. J.

In: The Astrophysical Journal, Vol. 834, No. 90, 2016.

Research output: Contribution to journal › Journal article › Research › peer-review

TY - JOUR

T1 - Detection of Very Low-Frequency Quasi-Periodic Oscillations in the 2015 Outburst of V404 Cygni

AU - Huppenkothen, D.

AU - Younes, G.

AU - Ingram, A.

AU - Kouveliotou, C.

AU - Göğüş, E.

AU - Bachetti, M.

AU - Sánchez-Fernández, C.

AU - Chenevez, Jérôme

AU - Motta, S.

AU - van der Klis, M.

AU - Granot, J.

AU - Gehrels, N.

AU - Kuulkers, E.

AU - Tomsick, J. A.

AU - Walton, D. J.

PY - 2016

Y1 - 2016

N2 - In June 2015, the black hole X-ray binary (BHXRB) V404 Cygni went into outburst for the first time since 1989. Here, we present a comprehensive search for quasi-periodic oscillations (QPOs) of V404 Cygni during its recent outburst, utilizing data from six instruments on board five different X-ray missions: Swift/XRT, Fermi/GBM, Chandra/ACIS, INTEGRAL's IBIS/ISGRI and JEM-X, and NuSTAR. We report the detection of a QPO at 18 mHz simultaneously with both Fermi/GBM and Swift/XRT, another example of a rare but slowly growing new class of mHz-QPOs in BHXRBs linked to sources with a high orbital inclination. Additionally, we find a duo of QPOs in a Chandra/ACIS observation at 73 mHz and 1.03 Hz, as well as a QPO at 136 mHz in a single Swift/XRT observation that can be interpreted as standard Type-C QPOs. Aside from the detected QPOs, there is significant structure in the broadband power, with a strong feature observable in the Chandra observations between 0.1 and 1 Hz. We discuss our results in the context of current models for QPO formation.

AB - In June 2015, the black hole X-ray binary (BHXRB) V404 Cygni went into outburst for the first time since 1989. Here, we present a comprehensive search for quasi-periodic oscillations (QPOs) of V404 Cygni during its recent outburst, utilizing data from six instruments on board five different X-ray missions: Swift/XRT, Fermi/GBM, Chandra/ACIS, INTEGRAL's IBIS/ISGRI and JEM-X, and NuSTAR. We report the detection of a QPO at 18 mHz simultaneously with both Fermi/GBM and Swift/XRT, another example of a rare but slowly growing new class of mHz-QPOs in BHXRBs linked to sources with a high orbital inclination. Additionally, we find a duo of QPOs in a Chandra/ACIS observation at 73 mHz and 1.03 Hz, as well as a QPO at 136 mHz in a single Swift/XRT observation that can be interpreted as standard Type-C QPOs. Aside from the detected QPOs, there is significant structure in the broadband power, with a strong feature observable in the Chandra observations between 0.1 and 1 Hz. We discuss our results in the context of current models for QPO formation.

KW - Methods: statistical

KW - Relativistic processes

KW - Stars: black holes

KW - X-rays: binaries

U2 - 10.3847/1538-4357/834/1/90

DO - 10.3847/1538-4357/834/1/90

M3 - Journal article

VL - 834

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 90

ER -