THE DISCOVERY OF PROPER MOTION OF GEMINGA OPTICAL COUNTERPART

Authors
MEREGHETTI S CARAVEO P BIGNAMI GF
Citation
S. Mereghetti et al., THE DISCOVERY OF PROPER MOTION OF GEMINGA OPTICAL COUNTERPART, Nuovo cimento della Societa italiana di fisica. C, Geophysics and space physics, 16(5), 1993, pp. 651-654
Citations number
NO
Categorie Soggetti
Geosciences, Interdisciplinary","Astronomy & Astrophysics
Journal title
Nuovo cimento della Societa italiana di fisica. C, Geophysics and space physics → ACNP
ISSN journal
11241896
Volume
16
Issue
5
Year of publication
1993
Pages
651 - 654
Database
ISI
SICI code
1124-1896(1993)16:5<651:TDOPMO>2.0.ZU;2-1
Abstract
After reviewing the evidence that the X/gamma-ray source 1E0630 + 178/ Geminga is a relatively young, isolated neutron star similar to the Ve la Pulsar, we present our recent discovery of the proper motion of its faint optical counterpart. This measurement confirms the proposed opt ical identification, and suggests a distance of the order of 100 pc, c onsistent with the upper limits derived from the Geminga high-energy e mission. The hypothetical nearby supernova event which originated Gemi nga about 350000 years ago is also briefly discussed.