SIMBAD references

2025ApJ...980L..16K - Astrophys. J., 980, L16 (2025/February-2)

Discovery of Metal-poor and Distant Pre-Main Sequence Candidates in WLM with JWST.

KALARI V.M., SALINAS R., ANDERSEN M., DE MARCHI G., RUBIO M., VINK J.S. and ZINNECKER H.

Abstract (from CDS):

We present the discovery of 12 metal-poor and ​​​distant pre-main sequence (PMS) candidates in the dwarf irregular galaxy Wolf-Lundmark-Melotte ∼968 kpc away, at a present-day metallicity of [Fe/H] ∼ -0.9. These candidates have masses between 1.25 and 5 M⊙, with ages <10 Myr, and exhibit significant near-infrared excesses at 2.5 and 4.3 μm. They are concentrated within a cluster roughly 10 pc (2″) across, situated in the H II region [HM95]-9. These are the most distant and metal-poor PMS stars known, and they can offer new quantitative insights into star formation at low metallicities.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Star formation - Pre-main sequence - Dwarf irregular galaxies

Status at CDS : Examining the need for a new acronym. // All or part of tables of objects will be ingested in SIMBAD with priority 1.

Simbad objects: 7

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