SUMMARY OF PROPOSAL 62062
550 WEST 120TH STREET
NY USA 10027
Tel: (212) 854-2554 Fax: (212) 854-8121
Subject: SUPERNOVA REMNANTS AND GALACTIC DIFFUSE EMISSION
THE MILLISECOND PULSAR J0437-4715: THERMAL OR NONTHERMAL?
ABSTRACTPSR J0437-47 is the nearest millisecond pulsar, and the only one that can be studied well in X-rays. The leading interpretation of its spectrum and energy-dependent pulse shape involves thermal emission from heated polar caps emitting as a weakly magnetized neutron star atmosphere. Fundamental parameters such as M/R can be derived if this interpretation is correct. ASCA can confirm this model with its good spectral resolution and high-energy response. Previous short ASCA pointings at this pulsar were compromised by poor choice of observing modes, and failure to take into account the presence of a neighboring Seyfert galaxy. We will remedy this oversight with a new observation of PSR J0437-47 that can provide a good spectrum and pulse profile. The Seyfert galaxy will also be studied.
|CO-I NAME ||INSTITUTE ||COUNTRY |
|GEORGE PAVLOV||PENN STATE U.||USA|
| VYATCHESLAV ZAVLIN||MPE-GARCHING||GERMANY|
| FRANK WANG||COLUMBIA U.||USA|
|TARGET NAME||PRI||RA||DEC||TIME||TC||OFF||GIS||SIS CNT||OBS|
|1)PSR J0437-4715|| 1|| 69.3154||-47.2522|| 120 ks||Y||N||P||0.30000||1|
TARGET 1ROLL ANGLE CONSTRAINT TO BE DETERMINED IN CONSULTATION WITH ISAS. TARGET IS VISIBLE 8.5 MONTHS OF THE YEAR.
COORDINATED OBSERVATION: START: Jun 28,1998 at 00STOP: Nov 7,1998 at 00