SIMBAD references

2001AJ....121.2673K - Astron. J., 121, 2673-2680 (2001/May-0)

A 3 µm survey of the Chamaeleon I dark cloud.


Abstract (from CDS):

We describe an L-band photometric survey of ∼ 0.5 deg2 of the Chamaeleon I dark cloud. The survey has a completeness limit of L<11.0. Our survey detects 124 sources, including all known pre-main-sequence stars with L≤11. The fraction of sources with near-IR excess emission is 58%±4% for K=9-11. Cha I sources have bluer H-K and K-L colors than pre-main-sequence stars in Taurus-Auriga. These sources also have a strong correlation between EW(Hα) and K-L. Stars with K-L≤0.6 have weak Hα emission; stars with K-L≥0.6 have strong Hα emission. Because many Cha I sources are heavily reddened, this division between weak emission T Tauri stars and classical T Tauri stars occurs at a redder K-L than in Taurus-Auriga.

Abstract Copyright:

Journal keyword(s): Infrared Radiation - ISM: Individual: Name: Chamaeleon I - Stars: Formation - Stars: Pre-Main-Sequence

VizieR on-line data: <Available at CDS (J/AJ/121/2673): table1.dat>

Nomenclature: Table 1: [KG2001] NNN (Nos 1-124).

Simbad objects: 129

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