IGR J04571+4527

Other name = 1RXS J045707.4+452751

Type distance Radio Counterpart Infrared/Optical Counterpart
R.A. (J2000) Dec. (J2000) References R.A. (J2000) Dec. (J2000) References
Intermediate Polar 500 pc USNO A2.0 1350_05105569,
2MASS J04570832+4527499 		Masetti et al. 2010 (A&A)
Krivonos et al. 2010 (cat.)
Published Papers
Miscellaneous :
Masetti et al. 2010 (A&A) :
  • Optical spectroscopy of the counterpart
  • R=17.5, Av ~ 0
  • Balmer emission lines up to Hδ at z=0
  • EW ratio of He II/Hβ and He II EW => non magnetic CV (see however Thorstensen & Halpern 2013)
  • d ~ 500 pc
Thorstensen & Halpern 2013 (AJ) :
  • Optical observations => time resolved radial velocity + photometry
  • Orbital period 0.258 or 0.200 d
  • 1218s pulsation
  • System is magnetic => intermediate polar
Bernardini et al. 2015 (MNRAS) :
  • XMM + Swift/BAT observations
  • Spin period of 1222.6s
  • Multitemperature optically thin emission + complex absorption provides good fit to the spectrum.
  • WD mass estimated to ~ 1.1 Msun
  • Classification as an IP confirmed

Last updated 8 Oct. 2015

Jerome Rodriguez