IGR J11014-6103

Other name = 1RXH J110146.1-610121,
2XMM J110147.1-61012 & 2XMM J110145.0-610140

Type Redshift Radio Counterpart Infrared/Optical Counterpart
R.A. (J2000) Dec. (J2000) References R.A. (J2000) Dec. (J2000) References
Multiple object in X-rays
Pulsar+PWN+cometary tail
11h 01m 49.42s -61o 01' 04.1" (+/- 6.1") Pavan et al. 2011, A&A 2MASS J11014625-6101189
USNO-A2.0 0225_10221381 (but see Pavan et al. 2011)
Malizia et al. 2011 ATel 3290
Published Papers
Miscellaneous :

Malizia et al. 2011:ATel 3290
  • Swift follow up
  • X-ray spectrum:black body kT~85 eV + power law Γ~2.6
  • R~14.7, B~16.2, J~13.9, H~13.6 and K~13.5
Pavan et al. 2011 A&A:
  • Multi instrumental archival data analysis and search for counterparts.
  • XMM data => source composed three different emitting regions: a 4-arcmin extended cometary-like tail (also detected by Swift, ASCA and Einstein) + 2 sources separated by ~22 arcsec
  • One of the 2 sources is extended (8.1")
  • No detection of IR or Optical counterparts within 90% XMM error circle
  • Possible radio counterpart (in MGPS-2 @ ) F843 MHz=24.2 mJy, close to the 8.1" extended source
  • All 3 components well fitted with a power-law model
  • Spectral and timing analysis => pulsar wind nebula produced by a high-velocity pulsar
Tomsick et al. 2012 ApJ:
  • Chandra observation => complexity of the morphology of the source
  • Composed of a point source + extension pointing to the North East direction (towards SNR MSH 11-61A) and ~4 arcmin long tail, perpendicular to the NE extension
  • Spectral analysis of the extended emission is presented, and the overall properties of the system discussed.
  • All results consistent with point source = pulsar (although no pulsations detected in the radio observations)
  • IGR source is a likely Pwin then
    • The NE extension = result of a bow shock due to pulsar motion through the ISM
    • Association with the SNR MSH 11-61A suggested =>would imply a large kick velocity of 2400-2900 km s-1 for the pulsar.
Pavan et al. 2014 A&A:
  • Investigation of the 4' long tail (jet-like- structire invesigated with Chandra and ATCA observations
  • The structure is a true plsar's jet
  • Highly collimated over 11pc, displays precession-like modulation precession period 66yr, precessing cone 45° angle to the line of sight ~ 50°
  • Spin axis of the NS almost perpendicular to the direction of motion => spin axis perpendicular to the direction of the kick received at the SN explosions

Last updated 13 Mar. 2014

Jerome Rodriguez