NASA Logo, External Link
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed AddThis share icon
 

Record Details

Record 10 of 4152
IGR J170626143 is an Accreting Millisecond X-Ray Pulsar
External Online Source: doi:10.3847/2041-8213/aa5e51
Author and Affiliation:
Strohmayer, Tod E.(NASA Goddard Space Flight Center, Greenbelt, MD United States)
Keek, Laurens(Maryland Univ., College Park, MD, United States)
Abstract: We present the discovery of 163.65 Hz X-ray pulsations from IGR J17062-6143 in the only observation obtained from the source with the Rossi X-ray Timing Explorer. This detection makes IGR J17062-6143 the lowest frequency accreting millisecond X-ray pulsar presently known. The pulsations are detected in the 2-12 keV band with an overall significance of 4.3sigma and an observed pulsed amplitude of 5.54% +/-0.67% (in this band). Both dynamic power spectral and coherent phase timing analysis indicate that the pulsation frequency is decreasing during the approx. =1.2 ks observation in a manner consistent with orbital motion of the neutron star. Because the observation interval is short, we cannot precisely measure the orbital period; however, periods shorter than 17 minutes are excluded at 90% confidence. For the range of acceptable circular orbits the inferred binary mass function substantially overlaps the observed range for the AMXP population as a whole.
Publication Date: Feb 17, 2017
Document ID:
20170002026
(Acquired Mar 08, 2017)
Subject Category: ASTROPHYSICS
Report/Patent Number: GSFC-E-DAA-TN39622
Document Type: Journal Article
Publication Information: The Astrophysical Journal Letters; p. L23; Voume 836; No. 2
Publisher Information: The American Astronomical Society
Contract/Grant/Task Num: NNG06EO90A
Financial Sponsor: NASA Goddard Space Flight Center; Greenbelt, MD United States
Organization Source: NASA Goddard Space Flight Center; Greenbelt, MD United States
Description: 5p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: PULSARS; X RAY TIMING EXPLORER; TIME MEASUREMENT; NEUTRON STARS; CIRCULAR ORBITS; UNSTEADY FLOW; X RAYS; FREQUENCIES; ROTATION
Other Descriptors: STARS: NEUTRON; OSCILLATIONS; ROTATION; XRAY: BINARIES - X-RAYS; INDIVIDUAL
Availability Source: Other Sources
› Back to Top
Find Similar Records
NASA Logo, External Link
NASA Official: Gerald Steeman
Site Curator: STI Program
Last Modified: March 08, 2017
Contact Us