SIMBAD references

1999A&A...341..751M - Astronomy and Astrophysics, volume 341, 751-767 (1999/1-3)

Deep ROSAT HRI observations of the Pleiades.

MICELA G., SCIORTINO S., HARNDEN F.R.Jr, KASHYAP V., ROSNER R., PROSSER C.F., DAMIANI F., STAUFFER J. and CAILLAULT J.-P.

Abstract (from CDS):

In a deep X-ray survey of the Pleiades open cluster, we use the ROSAT High Resolution Imager to explore a region of the cluster formerly surveyed with the PSPC. These new observations substantially improve upon both the sensitivity and the spatial resolution for this region of the Pleiades, allowing us to detect 18 cluster members not detected before and 16 members not included in the catalogs used in previous surveys. The high sensitivity of the present observations permits us to obtain more stringent upper limits for 72 additional members and also provides sufficient numbers of stars to enable us to explore the dependence of Lx on stellar rotation for the slow rotators of the Pleiades. Using the new high sensitivity X-ray observations and the recent rotational measurements we discuss the activity-rotation relationship in the Pleiades solar type stars. We also present new photometric observations of optical counterparts of a number of X-ray sources detected in previous surveys but not yet identified.

Abstract Copyright:

Journal keyword(s): X-rays: stars - stars: coronae - open clusters and associations: individual: Pleiades

VizieR on-line data: <Available at CDS (J/A+A/341/751): table2.dat table3.dat tables.ps tables.tex>

Nomenclature: Table 2: Cl* Melotte 22 MSH NNN N=260. Table B1: PLHX NN (Nos 1-36). Table B2: [SCG94] X NNN (Nos 318, 319 added). Table C1: PLHX Anon 1 N=1.

Simbad objects: 338

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2019.10.16-23:08:44

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