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A rapid change in X-ray variability and a jet ejection in the black hole transient MAXI J1820+070

A rapid change in X-ray variability and a jet ejection in the black hole transient MAXI J1820+070
A rapid change in X-ray variability and a jet ejection in the black hole transient MAXI J1820+070
We present Neutron Star Interior Composition ExplorerX-ray and Arcminute Microkelvin ImagerLarge Array radio observations of a rapid hard-to-soft state transition in the black hole X-ray transientMAXI J1820+070. During the transition from the hard state to the soft state a switch between twoparticular types of quasiperiodic oscillations (QPOs) was seen in the X-ray power density spectra, fromtype-C to type-B, along with a drop in the strength of the broadband X-ray variability and a briefflare in the 7–12 keV band. Soon after this switch (∼1.5–2.5 hr) a strong radio flare was observedthat corresponded to the launch of superluminal ejecta. Although hints of a connection betweenQPO transitions and radio flares have been seen in other black hole X-ray transients, our observationsconstitute the strongest observational evidence to date for a link between the appearance of type-BQPOs and the launch of discrete jet ejections.
0004-637X
Homan, Jeroen
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Bright, Joe
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Motta, Sara E.
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Altamirano, Diego
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Arzoumanian, Zaven
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Basak, Arkadip
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Belloni, Tomaso M.
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Cackett, Edward M.
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Fender, Rob
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Gendreau, Keith C.
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Kara, Erin
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Pasham, Dheeraj R.
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Remillard, Ronald A.
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Steiner, James F.
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Stevens, Abigail L.
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Uttley, Phil
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Homan, Jeroen
2196e823-740b-4c46-8cc9-ddf7bb22a6fa
Bright, Joe
dc35178e-d0a8-411a-afd3-c04c0b27cf94
Motta, Sara E.
2c9cd6cb-e027-46b7-92ce-2ace8a0154ff
Altamirano, Diego
d5ccdb09-0b71-4303-9538-05b467be075b
Arzoumanian, Zaven
148a8b48-2b12-4744-b32b-08da259503ba
Basak, Arkadip
4367e329-e0e5-492b-b418-92219c533c3f
Belloni, Tomaso M.
bbd7ff5b-da7d-4d6b-b528-d995de790e3e
Cackett, Edward M.
ab5902e6-5ff4-43c0-936c-cfcb904c4273
Fender, Rob
d68a3a9c-963b-4e81-94ce-50b0d5060128
Gendreau, Keith C.
289c5283-377f-476a-aec3-5532dfff6f2b
Kara, Erin
9f6d9b29-1869-4b3a-a0f2-bb13590add90
Pasham, Dheeraj R.
b365850d-4a8b-48f2-9f28-bb20e62c8029
Remillard, Ronald A.
053b9ed6-0f2e-44ef-9af7-13c789311206
Steiner, James F.
7f446296-425e-4236-9ea7-a7d2694a90b5
Stevens, Abigail L.
390753e5-550f-4287-9490-9462c6d27ed3
Uttley, Phil
51db40c3-a4df-4f1f-a3de-75493dcac042

Homan, Jeroen, Bright, Joe, Motta, Sara E., Altamirano, Diego, Arzoumanian, Zaven, Basak, Arkadip, Belloni, Tomaso M., Cackett, Edward M., Fender, Rob, Gendreau, Keith C., Kara, Erin, Pasham, Dheeraj R., Remillard, Ronald A., Steiner, James F., Stevens, Abigail L. and Uttley, Phil (2020) A rapid change in X-ray variability and a jet ejection in the black hole transient MAXI J1820+070. The Astrophysical Journal. (In Press)

Record type: Article

Abstract

We present Neutron Star Interior Composition ExplorerX-ray and Arcminute Microkelvin ImagerLarge Array radio observations of a rapid hard-to-soft state transition in the black hole X-ray transientMAXI J1820+070. During the transition from the hard state to the soft state a switch between twoparticular types of quasiperiodic oscillations (QPOs) was seen in the X-ray power density spectra, fromtype-C to type-B, along with a drop in the strength of the broadband X-ray variability and a briefflare in the 7–12 keV band. Soon after this switch (∼1.5–2.5 hr) a strong radio flare was observedthat corresponded to the launch of superluminal ejecta. Although hints of a connection betweenQPO transitions and radio flares have been seen in other black hole X-ray transients, our observationsconstitute the strongest observational evidence to date for a link between the appearance of type-BQPOs and the launch of discrete jet ejections.

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A Rapid Change in X-Ray Variability and a Jet Ejection in the Black Hole Transient MAXI J1820+070 - Accepted Manuscript
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Accepted/In Press date: 23 February 2020
Additional Information: arXiv is AM

Identifiers

Local EPrints ID: 439154
URI: http://eprints.soton.ac.uk/id/eprint/439154
ISSN: 0004-637X
PURE UUID: 0f0bec03-23da-4a7a-81f9-8da2ff1e1a74
ORCID for Diego Altamirano: ORCID iD orcid.org/0000-0002-3422-0074

Catalogue record

Date deposited: 06 Apr 2020 16:30
Last modified: 07 Oct 2020 02:05

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Contributors

Author: Jeroen Homan
Author: Joe Bright
Author: Sara E. Motta
Author: Zaven Arzoumanian
Author: Arkadip Basak
Author: Tomaso M. Belloni
Author: Edward M. Cackett
Author: Rob Fender
Author: Keith C. Gendreau
Author: Erin Kara
Author: Dheeraj R. Pasham
Author: Ronald A. Remillard
Author: James F. Steiner
Author: Abigail L. Stevens
Author: Phil Uttley

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