SUMMARY OF SEQUENCE NUMBER 200072
SUMMARY OF SEQUENCE NUMBER 200072
Title: DEEP ACIS IMAGING OF THE CORE OF THE PLEAIDES CLUSTER
Observer: Krishnamurthi
Subject Category: Normal Stars and WD
Seq: 200072 ObsId: 00366
Long-term Plan bin: 20-Mar-2000
ABSTRACT
We propose to obtain a single, 60 ksec, ACIS-I exposure of the core of the 100 million year-old Pleiades open cluster. The 16x16 arcmin ACIS-I field of view will contain at least 20 known ROSAT PSPC sources for which ACIS-I will provide simultaneous, high signal-to-noise 0.5-7 keV light curves and low-resolution spectra. The ACIS-I image will also reveal 100-200 previously unknown X-ray sources. Most will be associated with low-mass cluster members including a few candidate brown dwarfs. The ACIS data will be used with recently derived rotational periods to test rotation-activity at the low end of the zero-age main sequence. The ACIS spectra and light curves will allow modeling of X-ray flares and coronal heating for these young, active stars.
TARGET SUMMARY
| TARGET NAME |
RA | DEC |
TIME |
SI |
GRAT |
TYPE |
TC |
ROLL |
PRE |
PHASE |
MULTI |
PRI |
| PLEIADES |
56.691667 | 24.068333 |
23.75000 |
ACIS-I |
NONE |
GTO |
yes |
no |
no |
no |
no |
5 |
IMAGES
(NOTE: RASS images currently only available for targets LTS scheduled on or after Apr-09-2000)
PARAMETERS
Obscat Parameters
