1998A&A...335L..21S

Query : 1998A&A...335L..21S

1998A&A...335L..21S - Astronomy and Astrophysics, volume 335L21-24 (1998/7-1)

Possible pulsed optical emission from Geminga.

SHEARER A., GOLDEN A., HARFST S., BUTLER R., REDFERN R.M., O'SULLIVAN C.M.M., BESKIN G.M., NEIZVESTNY S.I., NEUSTROEV V.V., PLOKHOTNICHENKO V.L., CULLUM M. and DANKS A.

Abstract (from CDS):

We present optical data which suggests that G", the optical counterpart of the γ-ray pulsar Geminga, possibly pulses in B with a period of 0.237 seconds. The similarity between the optical pulse shape and the γ-ray light curve indicates that a large fraction of the optical emission is non-thermal in origin - contrary to recent suggestions based upon the total optical flux. The derived magnitude of the pulsed emission is mB=26.0±0.4. Whilst it is not possible to give an accurate figure for the pulsed fraction (due to variations in the sky background) we can give an 1σ upper limit of mB≃27 for the unpulsed fraction.

Abstract Copyright: ∼

Journal keyword(s): pulsars: individual (Geminga) - techniques: 2-d photon-counting detectors

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
2 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
3 PSR J0633+1746 Psr 06 33 54.153 +17 46 12.91           ~ 1308 0
4 PSR B0656+14 Psr 06 59 48.18800 +14 14 19.2000   24.85 24.90     ~ 943 1

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