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Optical IFU spectroscopy of a bipolar microquasar jet in NGC 300

Optical IFU spectroscopy of a bipolar microquasar jet in NGC 300
Optical IFU spectroscopy of a bipolar microquasar jet in NGC 300
We recently reported the discovery of a candidate jet-driving microquasar (S10) in the nearby spiral galaxy NGC 300. However, in the absence of kinematic information, we could not reliably determine the jet power or the dynamical age of the jet cavity. Here, we present optical MUSE integral field unit (IFU) observations of S10, which reveal a bipolar line-emitting jet structure surrounding a continuum-emitting central source. The optical jet lobes of S10 have a total extent of ˜ 40 pc and a shock velocity of ˜ 150 km s-1. Together with the jet kinematics, we exploit the MUSE coverage of the Balmer Hβ line to estimate the density of the surrounding matter and therefore compute the jet power to be Pjet ≈ 6.3 × 1038 erg s-1. An optical analysis of a microquasar jet bubble and a consequent robust derivation of the jet power have been possible only in a handful of similar sources. This study therefore adds valuable insight into microquasar jets, and demonstrates the power of optical integral field spectroscopy in identifying and analysing these objects.
accretion, accretion disks, stars: black holes, X-rays: binaries
3476-3485
McLeod, A. F.
6da071a9-1711-4a2a-938a-f4aa0890a18c
Scaringi, S.
88701970-a1b9-41fe-bf55-886716ee3374
Soria, R.
56ae49f7-b9b8-4eed-bae0-3947ea14ec19
Pakull, M. W.
14718473-92cd-4f0d-9ecc-2831010187fb
Urquhart, R.
9e0677d9-e75d-4a77-97d6-ad00f33b0a48
Maccarone, T. J.
c2f1d87b-e2ef-4e33-b09f-a2861d917ea8
Knigge, C.
ac320eec-631a-426e-b2db-717c8bf7857e
Miller-Jones, J. C. A.
3f659cec-bbb3-447c-b94e-4f170af560a6
Plotkin, R. M.
588c7172-8fd8-4651-a8bf-6bbf72a36edd
Motch, C.
7012709c-3194-42de-b4f7-73bc10840db5
Kruijssen, J. M. D.
f45015c7-fdca-4739-8255-83e6975f2014
Schruba, A.
ce4b84a4-d4bd-474f-8226-47191b135909
McLeod, A. F.
6da071a9-1711-4a2a-938a-f4aa0890a18c
Scaringi, S.
88701970-a1b9-41fe-bf55-886716ee3374
Soria, R.
56ae49f7-b9b8-4eed-bae0-3947ea14ec19
Pakull, M. W.
14718473-92cd-4f0d-9ecc-2831010187fb
Urquhart, R.
9e0677d9-e75d-4a77-97d6-ad00f33b0a48
Maccarone, T. J.
c2f1d87b-e2ef-4e33-b09f-a2861d917ea8
Knigge, C.
ac320eec-631a-426e-b2db-717c8bf7857e
Miller-Jones, J. C. A.
3f659cec-bbb3-447c-b94e-4f170af560a6
Plotkin, R. M.
588c7172-8fd8-4651-a8bf-6bbf72a36edd
Motch, C.
7012709c-3194-42de-b4f7-73bc10840db5
Kruijssen, J. M. D.
f45015c7-fdca-4739-8255-83e6975f2014
Schruba, A.
ce4b84a4-d4bd-474f-8226-47191b135909

McLeod, A. F., Scaringi, S., Soria, R., Pakull, M. W., Urquhart, R., Maccarone, T. J., Knigge, C., Miller-Jones, J. C. A., Plotkin, R. M., Motch, C., Kruijssen, J. M. D. and Schruba, A. (2019) Optical IFU spectroscopy of a bipolar microquasar jet in NGC 300. Monthly Notices of the Royal Astronomical Society, 485 (3), 3476-3485. (doi:10.1093/mnras/stz614).

Record type: Article

Abstract

We recently reported the discovery of a candidate jet-driving microquasar (S10) in the nearby spiral galaxy NGC 300. However, in the absence of kinematic information, we could not reliably determine the jet power or the dynamical age of the jet cavity. Here, we present optical MUSE integral field unit (IFU) observations of S10, which reveal a bipolar line-emitting jet structure surrounding a continuum-emitting central source. The optical jet lobes of S10 have a total extent of ˜ 40 pc and a shock velocity of ˜ 150 km s-1. Together with the jet kinematics, we exploit the MUSE coverage of the Balmer Hβ line to estimate the density of the surrounding matter and therefore compute the jet power to be Pjet ≈ 6.3 × 1038 erg s-1. An optical analysis of a microquasar jet bubble and a consequent robust derivation of the jet power have been possible only in a handful of similar sources. This study therefore adds valuable insight into microquasar jets, and demonstrates the power of optical integral field spectroscopy in identifying and analysing these objects.

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More information

Accepted/In Press date: 28 February 2019
e-pub ahead of print date: 2 March 2019
Published date: 1 May 2019
Keywords: accretion, accretion disks, stars: black holes, X-rays: binaries

Identifiers

Local EPrints ID: 431781
URI: http://eprints.soton.ac.uk/id/eprint/431781
PURE UUID: 3aadde51-e1ae-4c4f-9e06-bcf01bffa411

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Date deposited: 14 Jun 2019 16:30
Last modified: 06 Oct 2020 17:03

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Contributors

Author: A. F. McLeod
Author: S. Scaringi
Author: R. Soria
Author: M. W. Pakull
Author: R. Urquhart
Author: T. J. Maccarone
Author: C. Knigge
Author: J. C. A. Miller-Jones
Author: R. M. Plotkin
Author: C. Motch
Author: J. M. D. Kruijssen
Author: A. Schruba

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