Issue |
A&A
Volume 431, Number 2, February IV 2005
|
|
---|---|---|
Page(s) | 659 - 665 | |
Section | Stellar structure and evolution | |
DOI | https://doi.org/10.1051/0004-6361:20041781 | |
Published online | 04 February 2005 |
Search for the elusive optical counterpart of PSR J0537–6910 with the HST Advanced Camera for Surveys
1
European Southern Observatory, Karl-Schwarzschild-Str. 2, 85748 Garching, Germany e-mail: rmignani@eso.org
2
INAF - Osservatorio Astronomico di Roma, Via di Frascati 33, 00040 Monte Porzio Catone, Italy e-mail: [pulone;giacinto]@mporzio.astro.it
3
Pennsylvania State University, 525 Davey Lab, University Park, PA 16802, USA e-mail: [pavlov;townsley;green]@astro.psu.edu
Received:
3
August
2004
Accepted:
25
October
2004
We present the results of deep, high-resolution,
multi-band optical observations of the field of the young ( yr) 16 ms X-ray pulsar PSR J0537-6910 performed with the
Advanced Camera for Surveys (ACS) aboard the Hubble Space
Telescope (HST). Although a few new potential counterparts
have been detected within or close to the revised Chandra X-ray
error circle (
) of the pulsar, only two of them
(with magnitudes
and
)
show indications of a peculiar spectrum which could be related to
optical emission from the pulsar. This might be true also for a third,
fainter, candidate detected only in one filter (with magnitude
). If either of the two brighter candidates is
indeed the actual counterpart, the optical output of PSR J0537-6910
would make it similar to young Crab-like pulsars. If not, it would
mean that PSR J0537-6910 is significantly underluminous with respect
to all pulsars detected in the optical.
Key words: stars: pulsars: individual: PSR J0537-6910
© ESO, 2005
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