SUMMARY OF PROPOSAL 63009
UNIVERSITY OF CENTRAL LANCASHIRE
LANCASHIRE UK PR1 2HE
Tel: (+44) (0) 1772 893570 Fax: 01772 892903
Subject: CATACLYSMIC VARIABLES
CONSTRAINING THE LOCAL ABSORPTION IN OY CAR
ABSTRACTWe propose to obtain phase-resolved ASCA observations of the dwarf nova OY Car during quiescence. The presence or absence of eclipse will test if the X-ray source previously observed with the PSPC is the boundary layer as in other low mass accretion rate systems. In addition, we will search for a highly absorbed boundary layer component at higher energies. This will allow us to constrain the local column density, and resolve the apparent discrepancies between the values measured in the X-ray, and those deduced from the ``iron curtain'' seen in the HST UV spectra. We are requesting HST time simultaneous with the ASCA observations, so this proposal is Time Critical.
|CO-I NAME ||INSTITUTE ||COUNTRY |
|TIM NAYLOR||UNIVERSITY OF KEELE||UK|
| GABRIEL PRATT||UNIV. CEN. LANCS.||UK|
| KOJI MUKAI||NASA-GSFC/USRA||USA|
| JANET WOOD||UNIVERSITY OF KEELE||UK|
|TARGET NAME||PRI||RA||DEC||TIME||TC||OFF||GIS||SIS CNT||OBS|
|1)OY CARINAE|| 3||151.5958||-70.2350|| 60 ks||Y||N||P||0.15000||1|
TARGET 1EPHEMERIS CENTRE: MJD3993.053411+0.30631209239E. 36 HRS ELAPSE TIME ENSURES ADEQUATE BINARY PHASE COVERAGE. TIME CRITICALITY REQUIRED FOR SIMULTANEOUS WITH HST. DATE OF COORD. OBS. AS YET UNKNOWN.
COORDINATED OBSERVATION: START: Jan 1,2000 at 11STOP: Jan 2,2000 at 11