AGC198606: A gas-bearing dark matter minihalo? | Astronomy & Astrophysics (A&A)

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Table 1

AGC198606 global parameters.


Property	Value^a

RA	09:30:02.5
Decl	+16:38:08
c z _⊙	50.9 km s^-1
W ₅₀ ^b	24.7 km s^-1
σ ^c	9.3 km s^-1
v _rot	~14 km s^-1
S_HI	14.8 ± 1.5 Jy km s^-1
M _HI	M _⊙
θ _HI ^d	11′± 1′
a × b ^e	23′×16′
r _HI ^f	3.3 d_Mpc kpc
M _dyn ^g	3.5 × 10⁸ d _Mpc M _⊙
N _HI ^h	6 × 10¹⁹ atoms cm^-2

Notes.

^(a)

d_Mpc, the distance in Mpc, parameterizes distance-dependent values;

^(b)

for global spectrum;

^(c)

intrinsic velocity dispersion after correcting for velocity field;

^(d)

H i half flux angular diameter;

^(e)

H i extent at 5 × 10¹⁸ atoms cm^-2;

^(f)

H i radius at 5 × 10¹⁸ atoms cm^-2;

^(g)

dynamical mass using v_rot, σ, and r_HI;

^(h)

peak column density at 60′′ resolution.

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