Table 1.
Observational properties of the six galaxies in HCG15.
| Galaxy | Right Ascension | Declination | Type(1) | B(1) | Stellar mass(2) | SFR(2) | sSFR(2) | Radial velocity(3) |
|---|---|---|---|---|---|---|---|---|
| (J2000) | (J2000) | [mags] | [× 1010 M⊙] | [M⊙/yr] | [× 10−2/Gyr] | [km s−1] | ||
| HCG15-A | 02:07:53.03 | +02:10:03.3 | Sa | 14.87 | 8.13 | 0.10 | 0.11 | 6967 ± 30 |
| HCG15-B | 02:07:34.12 | +02:06:54.7 | E0 | 15.31 | 4.07 | 0.05 | 0.11 | 7117 ± 36 |
| HCG15-C | 02:07:39.77 | +02:08:59.0 | E0 | 14.91 | 10.72 | 0.02 | 0.02 | 7222 ± 30 |
| (6803 ± 12) | ||||||||
| HCG15-D | 02:07:37.52 | +02:10:50.8 | E0 | 15.60 | 2.46 | 0.01 | 0.32 | 6244 ± 36 |
| HCG15-E | 02:07:25.36 | +02:06:58.1 | Sa | 15.94 | 2.57 | 0.06 | 0.22 | 7197 ± 32 |
| HCG15-F | 02:07:37.87 | +02:11:25.0 | Sbc | 16.73 | 0.21 | 0.28 | 14.03 | 6242 ± 103 |
| (6133 ± 98) |
Notes. SFR and sSFR respectively stand for the star formation rate and specific star formation rate, derived from UV-to-IR data. We quote the original radial velocity measurements from Hickson et al. (1992), although we derive new radial velocities (shown here in brackets) for HCG15-C and HCG15-F based on our optical spectral later in this paper. References: (1)Hickson et al. (1989), (2)Bitsakis et al. (2011), (3)Hickson et al. (1992).
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