Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
A state change in the low-mass X-ray binary XSS J12270-4859
Monthly Notices of the Royal Astronomical Society, Volume 441, No. 2, Year 2014
Notification
URL copied to clipboard!
Description
Millisecond radio pulsars acquire their rapid rotation rates through mass and angular momentum transfer in a low-mass X-ray binary system. Recent studies of PSR J1824-2452I and PSR J1023+0038 have observationally demonstrated this link, and they have also shown that such systems can repeatedly transition back-and-forth between the radio millisecond pulsar and low-mass X-ray binary states. This also suggests that a fraction of such systems are not newly born radio millisecond pulsars but are rather suspended in a back-and-forth, stateswitching phase, perhaps for gigayears. XSS J12270-4859 has been previously suggested to be a low-mass X-ray binary, and until recently the only such system to be seen at MeV-GeV energies. We present radio, optical and X-ray observations that offer compelling evidence that XSS J12270-4859 is a low-mass X-ray binary which transitioned to a radiomillisecond pulsar state between 2012 November 14 and December 21. We use optical and X-ray photometry/spectroscopy to show that the system has undergone a sudden dimming and nolonger shows evidence for an accretion disc. The optical observations constrain the orbital period to 6.913±0.002 h. © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.
Authors & Co-Authors
Bassa, Cees G.
Netherlands, Dwingeloo
Netherlands Foundation for Research in Astronomy
Patruno, Alessandro
Netherlands, Dwingeloo
Netherlands Foundation for Research in Astronomy
Netherlands, Leiden
Sterrewacht Leiden
Hessels, Jason W.T.
Netherlands, Dwingeloo
Netherlands Foundation for Research in Astronomy
Netherlands, Amsterdam
Anton Pannekoek Instituut Voor Sterrenkunde
Keane, Evan F.
Australia, Hawthorn
Swinburne University of Technology
Australia, Sydney
Arc Centre of Excellence for All-sky Astrophysics
Monard, Berto L.A.G.
South Africa, Calitzdorp
Center for Backyard Astrophysics Kleinkaroo
Mahony, Elizabeth K.
Netherlands, Dwingeloo
Netherlands Foundation for Research in Astronomy
Bogdanov, Slavko
United States, New York
Columbia University
Corbel, Stéphane
France, Gif-sur-yvette
Institut de Recherche Sur Les Lois Fondamentales de L'univers
Edwards, Philip G.
Australia, Sydney
Australia Telescope National Facility
Archibald, Anne M.
Netherlands, Dwingeloo
Netherlands Foundation for Research in Astronomy
Janssen, Gemma H.
Netherlands, Dwingeloo
Netherlands Foundation for Research in Astronomy
Stappers, Benjamin W.
United Kingdom, Manchester
The University of Manchester
Tendulkar, Shriharsh P.
United States, Pasadena
California Institute of Technology
Statistics
Citations: 195
Authors: 13
Affiliations: 11
Identifiers
Doi:
10.1093/mnras/stu708
ISSN:
00358711
e-ISSN:
13652966