The Neutron star Interior Composition ExploreR Mission: Science Results

NICER Astronomical Telegrams

NICER Papers

NICER Posters and Presentations

Current Activity:

Current time (UT): 2018-02-23 18:22:07
NICER most recent pointing: N132D From: 2018-02-23T18:19:20 until: 2018-02-23T18:26:20
Next pointing: PSR_J1231-1411 At: 2018-02-23T18:31:19 until: 2018-02-23T18:43:21

Latest News
  • NICER/SEXTANT proves pulsars can function as a celestial GPS (12 January 2018)
    "NASA test proves pulsars can function as a celestial GPS", published in Nature, discusses how NICER/SEXTANT for the first time demonstrated in-space navigation using X-ray pulsars as a form of a Galactic Positioning System. This method will help spacecraft autonomously steer themselves through deep space. These results were featured in a press conference at the 231st Meeting of the AAS, in Washington DC.
  • NICER overview published in Nature Astronomy (01 Dec 2017)
    "Searching for a pulse", an overview of NICER by K. Gendreau and Z. Arzoumanian, has been published by Nature Astronomy (Nature Astronomy 1, 895, 2017).
  • NICER ATEL: Observation of Fast X-ray Flares in GX 339-4 (06 Oct 2017)
    NICER observed the black hole binary GX339-4 which is currently in outburst. The average hard color (4-12 / 2-4 keV) is near 0.5 or higher, which is harder than the value for Crab (0.25). These results are consistent with the report that GX339-4 is in a faint black hole hard state (Gandhi et al., Atel 10820).
  • NICER First ATEL: The Hard X-ray transient MAXI J1535-571 (22 Sep 2017)
    NICER has observed the hard X-ray transient MAXI J1535-571 several times from 2017 September 9 through September 20. The source had a NICER count rate ranging from 3,200 to 17,000 counts per second over this interval. NICER detects a set of low-frequency QPOs in a 1:2 frequency ratio, while the time-averaged spectrum shows broadened iron emission and puts constraints on the black hole spin parameter and the inclination of the accretion disk.
  • NICER Featured on "Science in Seconds" (08 Sep 2017)
    NICER was featured on "Science in Seconds" a short introduction to NICER, with NASA Associate Administrator Dr. Thomas Zurbuchen and Dr. Rita Sambruna, NICER program scientist.

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