SIMBAD references

2007ApJ...659.1198E - Astrophys. J., 659, 1198-1211 (2007/April-3)

The ARAUCARIA project: VLT-FORS spectroscopy of blue supergiants in NGC 3109. Classifications, first abundances, and kinematics.

EVANS C.J., BRESOLIN F., URBANEJA M.A., PIETRZYNSKI G., GIEREN W. and KUDRITZKI R.-P.

Abstract (from CDS):

We have obtained multiobject spectroscopy of luminous blue supergiants in NGC 3109, a galaxy at the periphery of the Local Group at ∼1.3 Mpc. We present a detailed catalog including finding charts, V and I magnitudes, spectral classifications, and stellar radial velocities. The radial velocities are seen to trace the rotation curves obtained from studies of the H I gas. From quantitative analysis of eight B-type supergiants we find a mean oxygen abundance of 12+log(O/H)=7.76±0.07 (1 σ systematic uncertainty), with a median result of 7.8. Given its distance, we highlight NGC 3109 as the ideal example of a low-metallicity, dark-matter-dominated dwarf galaxy for observations with the next generation of ground-based extremely large telescopes.

Abstract Copyright:

Journal keyword(s): galaxies: individual (DDO 236) - Galaxies: Individual: NGC Number: NGC 3109 - Galaxies: Stellar Content - Stars: Early-Type - Stars: Fundamental Parameters

VizieR on-line data: <Available at CDS (J/ApJ/659/1198): table2.dat>

Nomenclature: Table 2: [EBU2007] NN (Nos 1-91).

Simbad objects: 94

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2023.02.07-12:15:22

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