Measuring the distance to the black hole candidate X-ray binary MAXI J1348–630 using H I absorption
In: ISSN: 0035-8711, 2021
Online
academicJournal
Zugriff:
International audience ; We present neutral hydrogen (H i) absorption spectra of the black hole candidate X-ray binary (XRB) MAXI J1348–630 using the Australian Square Kilometre Array Pathfinder (ASKAP) and MeerKAT. The ASKAP H i spectrum shows a maximum negative radial velocity (with respect to the local standard of rest) of −31 ± 4 km s^−1 for MAXI J1348–630, as compared to −50 ± 4 km s^−1 for a stacked spectrum of several nearby extragalactic sources. This implies a most probable distance of |$2.2^{+0.5}_{-0.6}$| kpc for MAXI J1348–630, and a strong upper limit of the tangent point distance at 5.3 ± 0.1 kpc. Our preferred distance implies that MAXI J1348–630 reached 17 ± 10 per cent of the Eddington luminosity at the peak of its outburst, and that the source transited from the soft to the hard X-ray spectral state at 2.5 ± 1.5 per cent of the Eddington luminosity. The MeerKAT H i spectrum of MAXI J1348–630 (obtained from the older, low-resolution 4k mode) is consistent with the re-binned ASKAP spectrum, highlighting the potential of the eventual capabilities of MeerKAT for XRB spectral line studies.
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Measuring the distance to the black hole candidate X-ray binary MAXI J1348–630 using H I absorption
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Autor/in / Beteiligte Person: | Chauhan, J. ; Miller-Jones, J.C.A. ; Raja, W. ; Allison, J.R. ; Jacob, P.F.L. ; Anderson, G.E. ; Carotenuto, F. ; Corbel, S. ; Fender, R. ; Hotan, A. ; Whiting, M. ; Woudt, P.A. ; Koribalski, B. ; Mahony, E. ; Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)) ; Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS) ; Unité Scientifique de la Station de Nançay (USN) ; Observatoire des Sciences de l'Univers en région Centre (OSUC) ; Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris ; Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris ; Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS) |
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Zeitschrift: | ISSN: 0035-8711, 2021 |
Veröffentlichung: | HAL CCSD ; Oxford University Press (OUP): Policy P - Oxford Open Option A, 2021 |
Medientyp: | academicJournal |
DOI: | 10.1093/mnrasl/slaa195 |
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