1999A&A...343L..15L


Query : 1999A&A...343L..15L

1999A&A...343L..15L - Astronomy and Astrophysics, volume 343, L15-18 (1999/3-1)

Deep optical observations at the position of PSR1706-44 with the VLT-UT1.

LUNDQVIST P., SOLLERMAN J., RAY A., LEIBUNDGUT B. and SUTARIA F.

Abstract (from CDS):

We present optical data gathered by the VLT Test Camera in the V-band at the radio (interferometric) position of PSR1706-44. We find no optical counterpart to the pulsar in the VLT image. At a distance of 2.7" from a nearby bright star, the 3σ upper limit to the pulsar magnitude above the background is V=25.5. Within an error circle of 1.0" the upper limit is degraded in the direction towards the star. At a distance ≲2" from the star we can with confidence only claim an upper limit of V=24.5. This is still several magnitudes fainter than previous estimates. The implications of the optical upper limit taken together with the high energy pulsed gamma-ray radiation for theoretical models of pulsar emission are discussed.

Abstract Copyright:

Journal keyword(s): stars: pulsars: individual: PSR 1706-44 - telescopes - stars: pulsars: general

Simbad objects: 11

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Number of rows : 11
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5027 0
2 M 1 SNR 05 34 32 +22 00.8           ~ 5903 1
3 PSR B0540-69 Psr 05 40 10.84 -69 19 54.2           ~ 837 3
4 NAME Geminga Psr 06 33 54.153 +17 46 12.91           ~ 1133 0
5 PSR B0656+14 Psr 06 59 48.1960 +14 14 19.400   24.85 24.90     ~ 804 1
6 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545     15.10     ~ 2185 1
7 PSR B1055-52 Psr 10 57 59.0450 -52 26 56.330           ~ 697 0
8 PSR B1509-58 Psr 15 13 55.52 -59 08 08.8     13.06     ~ 815 1
9 PSR B1706-44 Psr 17 09 42.7460 -44 29 07.200     13.30     ~ 605 1
10 [CK98] Star 1 * 17 09 42.800 -44 29 10.30     17.4     ~ 4 0
11 PSR B1951+32 Psr 19 52 58.181 +32 52 40.98           ~ 569 2

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2022.05.23-10:27:18

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