AGZ000d3er IC1689 1237678806383460363

• by zoob1172

  IC1689 1237678806383460363 AGZ000d3er

  http://iopscience.iop.org/article/10.1086/346107/meta and NED note:
  "

  1. 2000A&AS..141..385V
     Re:IC 1689
     B-03 = IC 1689. (A,N,V) An S0-type galaxy with a warped disc and a blue
     inner polar disc of only 2 kpc radius. Listed as one of the
     bulge-dominated PRGs with short, narrow rings by Reshetnikov & Sotnikova
     (1997). Surface photometry and images: see Hagen-Thorn & Reshetnikov
     (1997), Reshetnikov et al. (1995), van Gorkom et al. (1987) and the PRC.
     Two-dimensional spectroscopy of the inner parts (Sil'chenko 1998) shows
     the orthogonality of star and gas rotation and evidence for a central
     secondary star formation burst. Not detected at Nancay (line flux <
     2.1 Jy km s^-1^), nor at the VLA or Arecibo; best upper limit is
     0.55 Jy km s^-1^ (see Table 3), which sets an upper limit of about
     5.5 10^8^ M_sun_ to the H I mass (for H_0_=75 km s^-1^Mpc^-1^) and of
     0.085 M_sun_ L_sun,B_ to the M_HI_/L_B_ ratio. Four other galaxies were
     found within the Nancay search area: (1.) IC 1690, a 14.9 mag elliptical
     at a redshift of 4537 km s^-1^, at 6.3' distance, (2.) NPM1G +32.0060
     (Klemola et al. 1987), a 15.9 mag elliptical at a redshift of
     5158 km s^-1^, at 9.1' distance, (3.) the galaxy pair NGC 507/508
     (= Arp 229), at an average distance of 13'; NGC 507 is a 12.2 mag
     early-type spiral of type SA(r)0^0^ at a redshift of 4924 km s^-1^, and
     NGC 508 is a 14.1 mag probable elliptical at a redshift of 5529 km s^-1^.
     They are listed as members of the NGC 507 group of galaxies (Garcia
     1993). Though all four have redshifts within the range of the Nancay
     spectrum (3970-5170 km s^-1^), only NGC 507 could be a possible source of
     confusion, but no line emission was detected from this galaxy. Modelling
     of its kinematics indicates a flattened dark halo surrounding the PRG.
     "

  Posted July 2, 2017 11:32 AM