SIMBAD references

2001AJ....122..866P - Astron. J., 122, 866-875 (2001/August-0)

Deep Chandra X-ray observatory imaging study of the very young stellar cluster IC 348.


Abstract (from CDS):

We have obtained a deep (53 ks) X-ray image of the very young stellar cluster IC 348 with the Advanced CCD Imaging Spectrometer on board the Chandra X-Ray Observatory. In our image with a sensitivity limit of ∼1x1028 ergs.s–1 (more than 10 times deeper than our ROSAT images of IC 348), 215 X-ray sources are detected. While 115 of these sources can be identified with known cluster members, 58 X-ray sources are most likely new, still unidentified cluster members. About 80% of all known cluster members with masses between ∼0.15 and 2 M are visible as X-ray sources in our image. We discover X-ray emission at levels of ∼1028 ergs.s–1 from four of 13 known brown dwarfs and from three of 12 brown dwarf candidates in IC 348. We also detect X-ray emission from two deeply embedded objects, presumably class I protostars, south of the cluster center.

Abstract Copyright:

Journal keyword(s): open clusters and associations: individual (IC 348) - Stars: Coronae - Stars: Low-Mass, Brown Dwarfs - Stars: Pre-Main-Sequence - X-Rays

VizieR on-line data: <Available at CDS (J/AJ/122/866): table1.dat table2.dat>

Nomenclature: Table 1: CXOPZ NNN (Nos 1-215) = CXOPZ JHHMMSS.s+DDMMSS N=215.

CDS comments: Objects 'X-NN' = '[PZH96] NN' in SIMBAD. 2MASS J034433+320131 not identified.

Simbad objects: 250

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