M87 Velocity Profiles

Comparisons of velocity profiles:
minor axis ~ 65°-70°, major axis ~ 155°-160°

All data, all PA's:
PS | GIF | (log r) : PS | GIF | (pruned, adjusted) : PS | GIF

Bender, Saglia, & Gerhard (1994) and van der Marel (1994) :
PS | GIF | (folded in r) : PS | GIF | (log r) : PS | GIF

Davies & Birkinshaw (1988), different PA's:
PS | GIF | (folded in r) : PS | GIF

Jarvis & Peletier (1991), different PA's:
PS | GIF | (folded in r) : PS | GIF

PA = 0°-20°: Bender et al. (1994), Jarvis & Peletier (1991), and Davies & Birkinshaw (1988) :
PS | GIF

PA = 50°-80°: van der Marel (1994), Jarvis & Peletier (1991), and Davies & Birkinshaw (1988) :
PS | GIF | (folded in r) : PS | GIF

PA = 80°-90°: Sargent et al. (1978), Jarvis & Peletier (1991), and Davies & Birkinshaw (1988) :
PS | GIF (note different scale)

PA = 137°-150°: Sembach & Tonry (1996), Jarvis & Peletier (1991), Davies & Birkinshaw (1988)
PS | GIF | (folded in r) : PS | GIF | (log r) : PS | GIF

Sembach & Tonry (1996) and Winsall & Freeman (1993) :
PS | GIF

Combined data:
PS | GIF | (Sembach & Tonry renormalized) : PS | GIF | (final adopted profile) : PS | GIF

Dressler (1980) measured \sigma_p=359 ± 23 km s-1 at R=13" (PA=??°)
Dressler & Richstone (1990) measured \sigma_p from R=0"-10" (PA=155°-200°)
Jarvis & Melnick (1991) measured \sigma_p from R=0"-10" (PA=90°)

Comparisons of h4 profiles:

Bender, Saglia, & Gerhard (1994) and van der Marel (1994) :
PS | GIF | (folded in r) : PS | GIF | (log r) : PS | GIF (final adopted profile) : PS | GIF