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| Query : 1994A&A...288..396P |
1994A&A...288..396P - Astronomy and Astrophysics, volume 288396-400 (1994/8-2)
NGC 1569: identification from Ca II infrared line spectra of the objects A, B as superluminous star clusters.
PRADA F., GREVE A. and McKEITH C.D.
Abstract (from CDS):
We present blue and near-infrared spectroscopic data which provide evidence that the stellar-like objects (called A and B) in the nucleus of NGC 1569 are star clusters. The Ca II infrared triplet absorption lines and the slope of the spectral continuum reveal that the star cluster B is in the red supergiant phase of the cluster evolution at an age of 12 Myr, while the star cluster A is in the blue star phase at an age of 13-20 Myr. Evidence for a stellar condensation is also found within the large H II region close to A as indicated by the Ca II triplet present in its near-infrared spectrum. We give reddening-corrected emission line ratios for this H II region.
Abstract Copyright: ∼
Journal keyword(s): galaxies: individual: NGC 1569 - galaxies: ISM - galaxies: stellar content - galaxies: star clusters
Simbad objects: 9
| Number of rows : 9 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | IC 10 | rG | 00 20 17.33520 | +59 18 13.6480 | 13.6 | 9.5 | ~ | 1185 | 1 | |||
| 2 | SNR B0057-72.2 | SNR | 00 59 27.40 | -72 10 10.7 | 12.37 | 12.57 | ~ | 251 | 0 | |||
| 3 | HK NGC 1569 45 | MoC | 04 30 46.7 | +64 50 59 | ~ | 23 | 1 | |||||
| 4 | NAME NGC 1569 CL* A | Cl* | 04 30 48.2 | +64 50 59 | 15.45 | 15.22 | ~ | 106 | 1 | |||
| 5 | NAME NGC 1569 CL* B | Cl* | 04 30 49.0 | +64 50 53 | ~ | 77 | 0 | |||||
| 6 | NGC 1569 | rG | 04 30 49.186 | +64 50 52.52 | 11.72 | 11.86 | 11.03 | ~ | 1297 | 3 | ||
| 7 | NGC 1705 | Sy2 | 04 54 13.4661493464 | -53 21 39.471592428 | 12.32 | 12.96 | 12.56 | 12.58 | 12.9 | ~ | 692 | 1 |
| 8 | NAME 30 Dor Nebula | SFR | 05 38 36.0 | -69 05 11 | ~ | 1276 | 2 | |||||
| 9 | M 82 | AGN | 09 55 52.430 | +69 40 46.93 | 9.61 | 9.30 | 8.41 | ~ | 6156 | 6 |
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