δ Equulei

Infrared Spectroscopy of U Equulei ’ s Warm Circumstellar Gas

Medium and high resolution spectroscopy of U Equulei from 1 to 4 µm during 1997-2003 has revealed information about its unusual circumstellar envelope, observed previously at optical and radio wavelengths. Strong absorption bands of H 2 O and of CO dominate the 1–4 µm spectrum. The gas has a mean temperature of 600 K and 12 C/ 13 C≤10. The CO 2-0 line profiles and velocities imply no net ejecti...

Dirichlet Heat Kernel Estimates for Δ +δ

For d ≥ 1 and 0 < β < α < 2, consider a family of pseudo differential operators {Δ + aΔ; a ∈ [0,1]} on R that evolves continuously from Δ to Δ + Δ. It gives arise to a family of Lévy processes {X, a ∈ [0,1]} on R, where each X is the independent sum of a symmetric α-stable process and a symmetric β-stable process with weight a. For any C open set D ⊂R, we establish explicit sharp two-sided esti...

Detecting Omnivory with Δ Δ 15 N

is no unambiguous evidence that plumicolous feather mites chew holes in feathers; such damage is usually caused by feather lice. Also, it has been reported that feather mites of the great-spotted woodpecker (Dryobates major) and the hoopoe (Upupa epops) avoid white spots on the feathers and instead aggregate on melanized areas 5. Thus, as we stressed in our review 3 , extrapolating from lice to...

δ-Small Submodules and δ-Supplemented Modules

Thermoelectric properties of Zn5Sb4In2-δ (δ=0.15)

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