A radio parallax to the black hole X-ray binary MAXI J1820+070

A radio parallax to the black hole X-ray binary MAXI J1820+070

© 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. Using the Very Long Baseline Array and the European Very Long Baseline Interferometry Network, we have made a precise measurement of the radio parallax of the black hole X-ray binary MAXI J1820+070...

Full description

Bibliographic Details
Main Authors: Atri, P., Miller-Jones, James, Bahramian, A., Plotkin, Richard, Deller, A.T., Jonker, P.G., Maccarone, T.J., Sivakoff, G.R., Soria, R., Altamirano, D., Belloni, T., Fender, R., Koerding, E., Maitra, D., Markoff, S., Migliari, S., Russell, D., Russell, T., Sarazin, C.L., Tetarenko, A.J., Tudose, V.
Format: Journal Article
Language:English
Published: OXFORD UNIV PRESS 2020
Subjects:
Science & Technology
Physical Sciences
Astronomy & Astrophysics
astrometry
parallaxes
stars: black holes
radio continuum: transients
X-rays: binaries
high angular resolution
TRIGONOMETRIC PARALLAXES
DISTANCE
MASS
STAR
LUMINOSITIES
VLBA
Online Access:http://purl.org/au-research/grants/arc/FT140101082
http://hdl.handle.net/20.500.11937/80175
Description
Summary:© 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. Using the Very Long Baseline Array and the European Very Long Baseline Interferometry Network, we have made a precise measurement of the radio parallax of the black hole X-ray binary MAXI J1820+070, providing a model-independent distance to the source. Our parallax measurement of (0.348 ± 0.033) mas for MAXI J1820+070 translates to a distance of (2.96 ± 0.33) kpc. This distance implies that the source reached (15 ± 3) per cent of the Eddington luminosity at the peak of its outburst. Further, we use this distance to refine previous estimates of the jet inclination angle, jet velocity, and the mass of the black hole in MAXI J1820+070 to be (63 ± 3)°, (0.89 ± 0.09) c, and (9.2 ± 1.3) M?, respectively.

Similar Items