NICER observation list: Target ID 251602

Abstract

We are proposing continued timing of pulsars PSR J1846-0258 and J1838-0655 for a total of 110 ks to maintain phase-connected timing solutions. These pulsars are members of a group of young and energetic rotation-powered pulsars that are both radio and GeV quiet, and therefore must be monitored in X-rays to understand their high-energy spectrum and enigmatic nature. Both have shown large glitches and J1846-0258 had a magnetar-like outburst in 2006. Timing with NICER will to establish a multi-year ephemeris and allow us to improve the significance of our detections of emission with Fermi GBM and LAT, to discriminate between pair creation models in pulsar magnetospheres, to understand weak particle acceleration and glitches in MeV pulsars and to probe the pulsar-magnetar connection.
Obsid RA DEC l b Start End Exposure Number of
Modules
Number of
Processing
Status of
Processing
Date of
Processing
Public
date
2516020101 279.514 -6.926 25.246 -0.196 58552.0384 58552.1322 3888.0 52 3 VALIDATED 58558.6 58566
2516020201 279.514 -6.925 25.247 -0.196 58553.0028 58553.0981 3960.0 52 2 VALIDATED 58558.7 58567
2516020301 279.512 -6.926 25.245 -0.194 58554.9989 58555.0947 3491.0 52 2 VALIDATED 58560.7 58569
2516020401 279.514 -6.926 25.246 -0.196 58559.0565 58559.3204 2290.0 52 3 VALIDATED 58566.1 58573
2516020501 279.513 -6.926 25.246 -0.196 58578.3183 58578.4676 3215.0 52 2 VALIDATED 58582.8 58592
2516020601 279.513 -6.924 25.248 -0.195 58609.0475 58609.4392 4198.0 52 3 VALIDATED 58612.6 58623
2516020701 279.513 -6.926 25.245 -0.195 58640.3704 58640.4620 4439.0 52 3 VALIDATED 58644.6 58654
2516020801 279.512 -6.925 25.246 -0.194 58672.0391 58672.2521 5856.0 52 3 VALIDATED 58676.6 58686
2516020901 279.517 -6.925 25.248 -0.198 58698.5407 58698.7523 5370.0 52 3 VALIDATED 58702.7 58712
2516021001 279.515 -6.928 25.245 -0.198 58729.1137 58729.2065 3857.0 52 1 VALIDATED 58736.0 58743
2516021101 279.513 -6.925 25.247 -0.195 58758.6809 58758.9505 2141.0 52 2 VALIDATED 58764.7 58772
2516021102 279.513 -6.926 25.246 -0.195 58759.0043 58759.8525 2965.0 52 3 VALIDATED 58767.7 58773