The galaxy ESO252-IG001

HIPASS J0457-42

RA, DEC(J2000) = 04:56:59, -42:47:50

Galactic l,b = 247.5, -38.5

S_peak = 0.166 +- 0.014 Jy

F_HI = 10.9 +- 1.9 Jy km/s

v_hel = 657 +- 5 km/s

w₅₀ = 58 km/s

w₂₀ = 99 km/s

v_LG = 440 km/s

log M_HI (Msun) = 7.95

Notes: HIPASS J0457-42 is the western, more face-on galaxy (PA = 45 degr) in the "pair" ESO252-IG001, as confirmed by ATCA HI observations. The optical velocities of 3220 km/s (Lauberts & Valentijn 1989), 3430 km/s (Fairall & Jones 1991) and 3501 +- 63 km/s (RC3) probably refer to the more distant, nearly edge-on, eastern galaxy, which was also detected in HIPASS and contains a small amount of HI gas at velocities of 2800-3000 km/s.

Original: B. Koribalski (28-Jan-2005)
Modified: B. Koribalski (28-Jan-2005)

		Parkes Narrabri Mopra VLBI SKA

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