SIMBAD references

2014AJ....147...85R - Astron. J., 147, 85 (2014/April-0)

The solar neighborhood. XXXIII. Parallax results from the CTIOPI 0.9 m program: trigonometric parallaxes of nearby low-mass active and young systems.

RIEDEL A.R., FINCH C.T., HENRY T.J., SUBASAVAGE J.P., JAO W.-C., MALO L., RODRIGUEZ D.R., WHITE R.J., GIES D.R., DIETERICH S.B., WINTERS J.G., DAVISON C.L., NELAN E.P., BLUNT S.C., CRUZ K.L., RICE E.L. and IANNA P.A.

Abstract (from CDS):

We present basic observational data and association membership analysis for 45 young and active low-mass stellar systems from the ongoing Research Consortium On Nearby Stars photometry and astrometry program at the Cerro Tololo Inter-American Observatory. Most of these systems have saturated X-ray emission (log (LX/Lbol) > -3.5) based on X-ray fluxes from the ROSAT All-Sky Survey, and many are significantly more luminous than main-sequence stars of comparable color. We present parallaxes and proper motions, Johnson-Kron-Cousins VRI photometry, and multiplicity observations from the CTIOPI program on the CTIO 0.9 m telescope. To this we add low-resolution optical spectroscopy and line measurements from the CTIO 1.5 m telescope, and interferometric binary measurements from the Hubble Space Telescope Fine Guidance Sensors. We also incorporate data from published sources: JHKS photometry from the Two Micron All Sky Survey point source catalog, X-ray data from the ROSAT All-Sky Survey, and radial velocities from literature sources. Within the sample of 45 systems, we identify 21 candidate low-mass pre-main-sequence members of nearby associations, including members of β Pictoris, TW Hydrae, Argus, AB Doradus, two ambiguous ~30 Myr old systems, and one object that may be a member of the Ursa Major moving group. Of the 21 candidate young systems, 14 are newly identified as a result of this work, and six of those are within 25 pc of the Sun.

Abstract Copyright:

Journal keyword(s): open clusters and associations: general - parallaxes - solar neighborhood - stars: low-mass - stars: pre-main sequence

VizieR on-line data: <Available at CDS (J/AJ/147/85): table2.dat table3.dat table4.dat table5.dat table6.dat table7.dat table8.dat table9.dat table10.dat refs.dat notes.dat>

CDS comments: SCR 0757-7714 is a misprint for SCR 0757-7114.

Simbad objects: 82

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2021.12.07-07:46:34

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