SUMMARY OF SEQUENCE NUMBER 500048
SUMMARY OF SEQUENCE NUMBER 500048
Title: SPECTROSCOPY AND TIMING OF THE MIDDLE-AGED PULSAR 1055-52
Observer: PAVLOV
Subject Category: SN, SNR, and isolated NS
Seq: 500048 ObsId: 00752
Long-term Plan bin: 29-Dec-1999
ABSTRACT
PSR 1055-52 is the oldest of 3 middle-aged pulsars from which thermal radiation has been detected. Its radiation has two components, soft and hard, with different spectra and pulse profiles. The soft component is emitted from the entire neutron star surface, while the origin of the hard component (polar caps or magnetosphere) remains elusive. The spectroscopy and timing of PSR 1055-52 with ACIS-S, interpreted in terms of neutron star atmosphere models, will enable us to elucidate the nature of the hard component, to determine chemical composition and distributions of temperature and magnetic field at the neutron star surface, and to constrain star's mass and radius. A complementing HRC-I observation will yield a high-resolution image to search for a compact nebula around the pulsar.
TARGET SUMMARY
| TARGET NAME |
RA | DEC |
TIME |
SI |
GRAT |
TYPE |
TC |
ROLL |
PRE |
PHASE |
MULTI |
PRI |
| PSR 1055-52 |
164.495000 | -52.448972 |
40.00000 |
ACIS-S |
NONE |
GO |
no |
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
