EG J 1809 − 2328 Mallory
نویسنده
چکیده
We report the discovery of a partial ∼ 2 diameter non-thermal radio shell coincident with Taz, the pulsar wind nebula (PWN) in the error box of the apparently variable γ-ray source 3EG J1809−2328. We propose that this radio shell is a newly identified supernova remnant (SNR G7.5−1.7) associated with the PWN. The SNR surrounds an amorphous region of thermal X-rays detected in archival ROSAT and ASCA observations putting this system in the mixed-morphology class of supernova remnants. G7.5−1.7 is the fifth such supernova remnant coincident with a bright GeV source, and the fourth containing a pulsar wind nebulae. Subject headings: gamma rays: observations — supernova remnants — pulsars: individual(Taz) — radio continuum: ISM — X-rays: ISM — ISM: individual(G7.5−1.7)
منابع مشابه
Recent Observations of EGRET Pulsar Wind Nebulae
We present recent X-ray and radio observations of pulsar wind nebulae discovered in EGRET error boxes. Two XMM-Newton observations show the X-ray extent of the rapidly moving PWN associated with the variable γ-ray source 3EG J1809−2328, and a trail coming from the new millisecond pulsar PSR J1614−2230 at high Galactic z. We also briefly discuss three PWN that are HESS TeV sources including a ne...
متن کاملPharmacological characterization of T-2328, 2-fluoro-4'-methoxy-3'-[[[(2S,3S)-2-phenyl-3-piperidinyl]amino]methyl]-[1,1'-biphenyl]-4-carbonitrile dihydrochloride, as a brain-penetrating antagonist of tachykinin NK1 receptor.
The pharmacological properties of T-2328 were evaluated as an antagonist of the tachykinin neurokinin 1 (NK(1)) receptor. T-2328 inhibited the specific binding of [(3)H][Sar(9),Met(O(2))(11)]substance P to tachykinin NK(1) receptors in human lymphoblastic IM9 cells with K(i) of 0.08 nM. In the same assay, K(i) for aprepitant, a brain-penetrating NK(1) antagonist, was 1.3 nM. The antagonism of T...
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